-/*******************************************************************************\r
- * Copyright (c) 2012 Association for Decentralized Information Management in\r
- * Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.db.layer0.util;\r
-\r
-import java.io.IOException;\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.Collections;\r
-import java.util.Comparator;\r
-import java.util.HashSet;\r
-import java.util.List;\r
-import java.util.Map;\r
-import java.util.Set;\r
-import java.util.TreeSet;\r
-\r
-import org.eclipse.core.runtime.IProgressMonitor;\r
-import org.eclipse.core.runtime.SubMonitor;\r
-import org.simantics.databoard.Bindings;\r
-import org.simantics.databoard.Datatypes;\r
-import org.simantics.databoard.adapter.AdaptException;\r
-import org.simantics.databoard.adapter.Adapter;\r
-import org.simantics.databoard.adapter.AdapterConstructionException;\r
-import org.simantics.databoard.binding.Binding;\r
-import org.simantics.databoard.binding.NumberBinding;\r
-import org.simantics.databoard.binding.StringBinding;\r
-import org.simantics.databoard.binding.error.BindingException;\r
-import org.simantics.databoard.binding.mutable.MutableStringBinding;\r
-import org.simantics.databoard.parser.repository.DataTypeSyntaxError;\r
-import org.simantics.databoard.parser.repository.DataValueRepository;\r
-import org.simantics.databoard.primitives.MutableString;\r
-import org.simantics.databoard.type.ArrayType;\r
-import org.simantics.databoard.type.BooleanType;\r
-import org.simantics.databoard.type.ByteType;\r
-import org.simantics.databoard.type.Datatype;\r
-import org.simantics.databoard.type.DoubleType;\r
-import org.simantics.databoard.type.FloatType;\r
-import org.simantics.databoard.type.IntegerType;\r
-import org.simantics.databoard.type.LongType;\r
-import org.simantics.databoard.type.MapType;\r
-import org.simantics.databoard.type.NumberType;\r
-import org.simantics.databoard.type.OptionalType;\r
-import org.simantics.databoard.type.RecordType;\r
-import org.simantics.databoard.type.StringType;\r
-import org.simantics.databoard.type.UnionType;\r
-import org.simantics.databoard.type.VariantType;\r
-import org.simantics.databoard.util.ObjectUtils;\r
-import org.simantics.db.ChangeSetIdentifier;\r
-import org.simantics.db.Operation;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.RelationContext;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.Session;\r
-import org.simantics.db.Statement;\r
-import org.simantics.db.WriteGraph;\r
-import org.simantics.db.WriteOnlyGraph;\r
-import org.simantics.db.common.CommentMetadata;\r
-import org.simantics.db.common.Indexing;\r
-import org.simantics.db.common.StandardStatement;\r
-import org.simantics.db.common.primitiverequest.PossibleRelatedValue;\r
-import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;\r
-import org.simantics.db.common.request.DelayedWriteRequest;\r
-import org.simantics.db.common.request.ObjectsWithType;\r
-import org.simantics.db.common.request.PossibleChild;\r
-import org.simantics.db.common.request.PossibleIndexRoot;\r
-import org.simantics.db.common.utils.NameUtils;\r
-import org.simantics.db.exception.CancelTransactionException;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.exception.ServiceException;\r
-import org.simantics.db.layer0.adapter.CopyHandler;\r
-import org.simantics.db.layer0.adapter.CopyHandler2;\r
-import org.simantics.db.layer0.adapter.GenericRelationIndex;\r
-import org.simantics.db.layer0.adapter.PasteHandler;\r
-import org.simantics.db.layer0.adapter.impl.DefaultPasteHandler;\r
-import org.simantics.db.layer0.adapter.impl.TGRemover;\r
-import org.simantics.db.layer0.genericrelation.IndexedRelations;\r
-import org.simantics.db.layer0.internal.SimanticsInternal;\r
-import org.simantics.db.layer0.migration.OntologiesFromLibrary;\r
-import org.simantics.db.layer0.property.OrderedResource;\r
-import org.simantics.db.layer0.request.GlobalOntologies;\r
-import org.simantics.db.layer0.request.PossibleVariableIndexRoot;\r
-import org.simantics.db.layer0.request.PropertyInfo;\r
-import org.simantics.db.layer0.request.PropertyInfoRequest;\r
-import org.simantics.db.layer0.util.SimanticsClipboard.Representation;\r
-import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;\r
-import org.simantics.db.layer0.variable.Variable;\r
-import org.simantics.db.service.ClusterCollectorPolicy;\r
-import org.simantics.db.service.ClusterControl;\r
-import org.simantics.db.service.ClusteringSupport;\r
-import org.simantics.db.service.CollectionSupport;\r
-import org.simantics.db.service.DebugSupport;\r
-import org.simantics.db.service.ManagementSupport;\r
-import org.simantics.db.service.UndoRedoSupport;\r
-import org.simantics.db.service.XSupport;\r
-import org.simantics.graph.db.TransferableGraphSource;\r
-import org.simantics.graph.db.TransferableGraphs;\r
-import org.simantics.graph.diff.Diff;\r
-import org.simantics.graph.diff.TransferableGraphDelta1;\r
-import org.simantics.graph.refactoring.GraphRefactoringUtils;\r
-import org.simantics.graph.representation.TransferableGraph1;\r
-import org.simantics.layer0.Layer0;\r
-import org.simantics.operation.Layer0X;\r
-import org.simantics.scl.compiler.environment.Environments;\r
-import org.simantics.scl.compiler.runtime.RuntimeEnvironment;\r
-import org.simantics.scl.compiler.top.SCLExpressionCompilationException;\r
-import org.simantics.scl.compiler.types.Type;\r
-import org.simantics.scl.osgi.SCLOsgi;\r
-import org.simantics.scl.runtime.function.Function;\r
-import org.simantics.scl.runtime.function.Function1;\r
-import org.simantics.scl.runtime.function.FunctionImpl1;\r
-\r
-public class Layer0Utils {\r
-\r
- @SuppressWarnings("rawtypes")\r
- public static final ThreadLocal SCL_GRAPH = new ThreadLocal();\r
-\r
- final public static Binding datatype_binging = Bindings.getBindingUnchecked(Datatype.class);\r
-\r
- public static Resource literal(WriteGraph g, String value) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(g);\r
- Resource r = g.newResource();\r
- g.claimValue(r, value, Bindings.STRING);\r
- g.claim(r, L0.InstanceOf, L0.String);\r
- return r;\r
- }\r
-\r
- public static Resource literal(WriteGraph g, double value) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(g);\r
- Resource r = g.newResource();\r
- g.claimValue(r, value, Bindings.DOUBLE);\r
- g.claim(r, L0.InstanceOf, L0.Double);\r
- return r;\r
- }\r
-\r
- public static Resource literal(WriteGraph g, int value) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(g);\r
- Resource r = g.newResource();\r
- g.claimValue(r, value, Bindings.INTEGER);\r
- g.claim(r, L0.InstanceOf, L0.Integer);\r
- return r;\r
- }\r
-\r
- public static void assert_(WriteGraph g, Resource type, Resource predicate, Resource object) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(g);\r
- Resource assertion = g.newResource();\r
- g.claim(type, L0.Asserts, assertion);\r
- g.claim(assertion, L0.InstanceOf, L0.Assertion);\r
- g.claim(assertion, L0.HasPredicate, predicate);\r
- g.claim(assertion, L0.HasObject, object);\r
- }\r
-\r
- public static Resource relation(WriteGraph g, Resource parent, String name, Resource superrelation) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(g);\r
- Resource relation = g.newResource();\r
- g.claim(relation, L0.SubrelationOf, superrelation);\r
- g.claim(relation, L0.HasName, literal(g, name));\r
- g.claim(parent, L0.ConsistsOf, relation);\r
-\r
- Resource superrelationInverse = g.getInverse(superrelation);\r
- if(superrelationInverse != null) {\r
- Resource inverse = g.newResource();\r
- g.claim(inverse, L0.SubrelationOf, superrelationInverse);\r
- g.claim(relation, L0.ConsistsOf, inverse);\r
- g.claim(inverse, L0.HasName, literal(g, "Inverse"));\r
- }\r
- return relation;\r
- }\r
-\r
- private static Resource getLiteralType(ReadGraph graph, Datatype type) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- if(type instanceof DoubleType) return L0.Double;\r
- else if(type instanceof StringType) return L0.String;\r
- else if(type instanceof IntegerType) return L0.Integer;\r
- else if(type instanceof LongType) return L0.Long;\r
- else if(type instanceof FloatType) return L0.Float;\r
- else if(type instanceof ByteType) return L0.Byte;\r
- else if(type instanceof BooleanType) return L0.Boolean;\r
- else if(type instanceof ArrayType) {\r
- ArrayType at = (ArrayType)type;\r
- if(at.componentType instanceof DoubleType) return L0.DoubleArray;\r
- else if(at.componentType instanceof StringType) return L0.StringArray;\r
- else if(at.componentType instanceof IntegerType) return L0.IntegerArray;\r
- else if(at.componentType instanceof LongType) return L0.LongArray;\r
- else if(at.componentType instanceof FloatType) return L0.FloatArray;\r
- else if(at.componentType instanceof ByteType) return L0.ByteArray;\r
- else if(at.componentType instanceof BooleanType) return L0.BooleanArray;\r
- else if(at.componentType instanceof VariantType) return L0.VariantArray;\r
- }\r
- throw new DatabaseException("Unidentified literal type for datatype " + type);\r
- }\r
-\r
- private static Resource getPossibleLiteralType(ReadGraph graph, String type) throws DatabaseException {\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- if("Double".equals(type)) return L0.Double;\r
- else if("String".equals(type)) return L0.String;\r
- else if("Integer".equals(type)) return L0.Integer;\r
- else if("Long".equals(type)) return L0.Long;\r
- else if("Float".equals(type)) return L0.Float;\r
- else if("Byte".equals(type)) return L0.Byte;\r
- else if("Boolean".equals(type)) return L0.Boolean;\r
- else if("[Double]".equals(type)) return L0.DoubleArray;\r
- else if("[String]".equals(type)) return L0.StringArray;\r
- else if("[Integer]".equals(type)) return L0.IntegerArray;\r
- else if("[Long]".equals(type)) return L0.LongArray;\r
- else if("[Float]".equals(type)) return L0.FloatArray;\r
- else if("[Byte]".equals(type)) return L0.ByteArray;\r
- else if("[Boolean]".equals(type)) return L0.BooleanArray;\r
- else if("[Variant]".equals(type)) return L0.VariantArray;\r
- else if("Array Double".equals(type)) return L0.DoubleArray;\r
- else if("Array String".equals(type)) return L0.StringArray;\r
- else if("Array Integer".equals(type)) return L0.IntegerArray;\r
- else if("Array Long".equals(type)) return L0.LongArray;\r
- else if("Array Float".equals(type)) return L0.FloatArray;\r
- else if("Array Byte".equals(type)) return L0.ByteArray;\r
- else if("Array Boolean".equals(type)) return L0.BooleanArray;\r
- else if("Array Variant".equals(type)) return L0.VariantArray;\r
- else if("Vector Double".equals(type)) return L0.DoubleArray;\r
- else if("Vector String".equals(type)) return L0.StringArray;\r
- else if("Vector Integer".equals(type)) return L0.IntegerArray;\r
- else if("Vector Long".equals(type)) return L0.LongArray;\r
- else if("Vector Float".equals(type)) return L0.FloatArray;\r
- else if("Vector Byte".equals(type)) return L0.ByteArray;\r
- else if("Vector Boolean".equals(type)) return L0.BooleanArray;\r
- else if("Vector Variant".equals(type)) return L0.VariantArray;\r
- else if("Datatype".equals(type)) return L0.DataType;\r
- else if("Variant".equals(type)) return L0.Variant;\r
- else return null;\r
- }\r
-\r
- public static Resource getPossibleLiteralType(ReadGraph graph, Variable variable) throws DatabaseException {\r
- Resource predicate = variable.getPossiblePredicateResource(graph);\r
- if(predicate == null) return null;\r
- return getPossibleLiteralType(graph, predicate);\r
- }\r
-\r
- public static Resource getLiteralType(ReadGraph graph, Variable variable) throws DatabaseException {\r
- Resource result = getPossibleLiteralType(graph, variable);\r
- if(result == null) throw new DatabaseException("Unidentified literal type for variable " + variable.getURI(graph));\r
- return result;\r
- }\r
-\r
- public static Resource getLiteralType(ReadGraph graph, Resource property) throws DatabaseException {\r
- Resource result = getPossibleLiteralType(graph, property);\r
- if(result == null) throw new DatabaseException("Unidentified literal type for property " + graph.getURI(property));\r
- return result;\r
- }\r
-\r
- public static Resource getPossibleLiteralType(ReadGraph graph, Resource property) throws DatabaseException {\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Layer0X L0X = Layer0X.getInstance(graph);\r
-\r
- Resource defaultLiteralType = graph.getPossibleObject(property, L0.HasDefaultLiteralType);\r
- if(defaultLiteralType != null) return defaultLiteralType;\r
-\r
- Resource range = graph.getPossibleObject(property, L0.HasRange);\r
- if(range != null && !L0.Value.equals(range)) return range;\r
-\r
- Datatype requiredDataType = graph.getPossibleRelatedValue(property, L0X.RequiresDataType, datatype_binging);\r
- if(requiredDataType != null) return getLiteralType(graph, requiredDataType);\r
-\r
- String requiredValueType = graph.getPossibleRelatedValue(property, L0.RequiresValueType, Bindings.STRING);\r
- if(requiredValueType == null) return null;\r
-\r
- return getPossibleLiteralType(graph, requiredValueType);\r
-\r
- }\r
-\r
- /**\r
- * @param type any data type definition\r
- * @return SCL type that matches the specified data type on a basic level.\r
- * Data type metadata is/cannot be converted into SCL types.\r
- * @throws IllegalArgumentException\r
- * if the input datatype can't be converted into an SCL type\r
- */\r
- public static String getSCLType(Datatype type) throws IllegalArgumentException {\r
- return buildSCLType(type, null).toString();\r
- }\r
-\r
- /**\r
- * Only used internally by {@link #buildSCLType(Datatype, StringBuilder)}\r
- * @param s\r
- * @param toBuilder\r
- * @return\r
- * @see #buildSCLType(Datatype, StringBuilder)\r
- */\r
- private static StringBuilder append(StringBuilder toBuilder, String s) {\r
- return toBuilder != null ? toBuilder.append(s) : new StringBuilder(s);\r
- }\r
-\r
- private static CharSequence append(CharSequence to, String s) {\r
- if (to instanceof StringBuilder)\r
- return ((StringBuilder) to).append(s);\r
- return new StringBuilder(to.length() + s.length()).append(to).append(s);\r
- }\r
-\r
- private static CharSequence stringOrBuilder(StringBuilder toBuilder, String s) {\r
- return toBuilder != null ? toBuilder.append(s) : s;\r
- }\r
-\r
- /**\r
- * @param type any data type definition\r
- * @return SCL type that matches the specified data type on a basic level.\r
- * Data type metadata is/cannot be converted into SCL types.\r
- * @throws IllegalArgumentException\r
- * if the input datatype can't be converted into an SCL type\r
- */\r
- private static CharSequence buildSCLType(Datatype type, StringBuilder result) throws IllegalArgumentException {\r
- if(type instanceof DoubleType) return stringOrBuilder(result, "Double");\r
- else if(type instanceof StringType) return stringOrBuilder(result, "String");\r
- else if(type instanceof IntegerType) return stringOrBuilder(result, "Integer");\r
- else if(type instanceof FloatType) return stringOrBuilder(result, "Float");\r
- else if(type instanceof BooleanType) return stringOrBuilder(result, "Boolean");\r
- else if(type instanceof ByteType) return stringOrBuilder(result, "Byte");\r
- else if(type instanceof LongType) return stringOrBuilder(result, "Long");\r
- else if(type instanceof VariantType) return stringOrBuilder(result, "Variant");\r
- else if(type instanceof ArrayType) {\r
- ArrayType at = (ArrayType) type;\r
- // Optimization to prevent allocations in the most basic array cases\r
- if(at.componentType instanceof DoubleType) return stringOrBuilder(result, "Vector Double");\r
- else if(at.componentType instanceof StringType) return stringOrBuilder(result, "Vector String");\r
- else if(at.componentType instanceof IntegerType) return stringOrBuilder(result, "Vector Integer");\r
- else if(at.componentType instanceof FloatType) return stringOrBuilder(result, "Vector Float");\r
- else if(at.componentType instanceof BooleanType) return stringOrBuilder(result, "Vector Boolean");\r
- else if(at.componentType instanceof ByteType) return stringOrBuilder(result, "Vector Byte");\r
- else if(at.componentType instanceof LongType) return stringOrBuilder(result, "Vector Long");\r
- else if(at.componentType instanceof VariantType) return stringOrBuilder(result, "Vector Variant");\r
- else return buildSCLType(at.componentType, append(result, "Vector "));\r
- } else if(type instanceof OptionalType) {\r
- OptionalType ot = (OptionalType) type;\r
- return append(buildSCLType(ot.componentType, append(result, "Maybe (")), ")");\r
- } else if (type instanceof RecordType) {\r
- throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);\r
- } else if (type instanceof MapType) {\r
- throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);\r
- } else if (type instanceof UnionType) {\r
- throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);\r
- }\r
- throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);\r
- }\r
-\r
-\r
- public static Type getSCLType(ReadGraph graph, RuntimeEnvironment runtimeEnvironment, String typeText) throws DatabaseException {\r
- try {\r
- return Environments.getType(runtimeEnvironment.getEnvironment(), typeText);\r
- } catch (SCLExpressionCompilationException e) {\r
- throw new DatabaseException(e);\r
- }\r
- }\r
-\r
- public static Type getSCLType(ReadGraph graph, Variable property) throws DatabaseException {\r
-\r
- RuntimeEnvironment runtimeEnvironment = graph.syncRequest(new RuntimeEnvironmentRequest(property.getIndexRoot(graph)));\r
- return getSCLType(graph, runtimeEnvironment, getSCLTypeString(graph, property));\r
-\r
- }\r
-\r
- \r
- public static String getSCLTypeString(ReadGraph graph, Variable context) throws DatabaseException {\r
- return getSCLTypeString(graph, context.getPossiblePredicateResource(graph), context.getRepresents(graph));\r
- }\r
-\r
-\r
- public static String getSCLTypeString(ReadGraph graph, Resource predicate, Resource value) throws DatabaseException {\r
-\r
- if(predicate != null) {\r
- String requiredValueTypes = graph.getPossibleRelatedValue(predicate, Layer0.getInstance(graph).RequiresValueType, Bindings.STRING);\r
- if(requiredValueTypes != null)\r
- return requiredValueTypes;\r
- }\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Layer0X L0X = Layer0X.getInstance(graph);\r
-\r
- Datatype literalDatatype = graph.getPossibleRelatedValue(value, L0.HasDataType, datatype_binging);\r
- if(literalDatatype != null) return getSCLType(literalDatatype);\r
-\r
- String literalValueType = graph.getPossibleRelatedValue(value, L0.HasValueType, Bindings.STRING);\r
- if(literalValueType != null) return literalValueType;\r
-\r
- if(predicate != null) {\r
-\r
- Datatype requiredDataType = graph.getPossibleRelatedValue(predicate, L0X.RequiresDataType, datatype_binging);\r
- if(requiredDataType != null) return getSCLType(requiredDataType);\r
-\r
- throw new DatabaseException("Unidentified literal data type for property " + NameUtils.getURIOrSafeNameInternal(graph, predicate));\r
-\r
- }\r
-\r
- throw new DatabaseException("Unidentified literal data type");\r
-\r
- }\r
-\r
- public static Datatype getDatatype(ReadGraph graph, Variable variable) throws DatabaseException {\r
- Datatype result = getPossibleDatatype(graph, variable);\r
- if(result != null) return result;\r
- throw new DatabaseException("Unidentified literal data type for property " + variable.getURI(graph));\r
- }\r
-\r
- public static Datatype getPossibleDatatype(ReadGraph graph, Variable variable) throws DatabaseException {\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Layer0X L0X = Layer0X.getInstance(graph);\r
-\r
- Resource property = variable.getPossiblePredicateResource(graph);\r
- if(property != null) {\r
-// Datatype requiredDataType = graph.getPossibleRelatedValue(property, L0X.RequiresDataType, datatype_binging);\r
- Datatype requiredDataType = graph.syncRequest(new PossibleRelatedValue<Datatype>(property, L0X.RequiresDataType, datatype_binging));\r
- if(requiredDataType != null) return requiredDataType;\r
- }\r
-\r
- Resource literal = variable.getPossibleRepresents(graph);\r
- if(literal != null) {\r
- Datatype literalDatatype = graph.getPossibleRelatedValue2(literal, L0.HasDataType, new StandardGraphPropertyVariable(graph, variable, null, literal, L0.HasDataType), datatype_binging);\r
- if(literalDatatype != null) return literalDatatype;\r
- }\r
-\r
- if(property != null) {\r
-\r
- String requiredValueType = graph.getPossibleRelatedValue(property, L0.RequiresValueType, Bindings.STRING);\r
- if(requiredValueType != null) {\r
- Datatype datatype = getPossibleDatatypeForValueType(requiredValueType);\r
- if(datatype != null) return datatype;\r
- }\r
-\r
- Resource subject = variable.getParent(graph).getPossibleRepresents(graph);\r
- if(subject != null) {\r
- Set<Resource> asses = new HashSet<Resource>();\r
- for(Resource type : graph.getTypes(subject)) {\r
- asses.addAll(graph.getAssertedObjects(type, property));\r
- }\r
- if(asses.size() == 1) {\r
- Resource ass = asses.iterator().next();\r
- Datatype dt = graph.getPossibleRelatedValue(ass, L0.HasDataType, Bindings.getBindingUnchecked(Datatype.class));\r
- if(dt != null) return dt;\r
- }\r
- }\r
-\r
- }\r
-\r
- return null;\r
-\r
- }\r
-\r
- private static Datatype getPossibleDatatypeForValueType(String requiredValueType) throws DatabaseException {\r
-\r
- String[] split = requiredValueType.split(" ");\r
- String arrayType = null;\r
- if(split.length == 2 && "Array".equals(split[0])) {\r
- arrayType = split[1];\r
- } else if(requiredValueType.startsWith("[") && requiredValueType.endsWith("]")) {\r
- arrayType = requiredValueType.substring(1, requiredValueType.length()-1);\r
- }\r
-\r
- if(arrayType != null) {\r
- Datatype arrayDataType = getArrayDataTypeForType(arrayType);\r
- if(arrayDataType != null)\r
- return arrayDataType;\r
- }\r
-\r
- Datatype dt = Datatypes.getDatatype(requiredValueType);\r
- if(dt != null) return dt;\r
-\r
- try {\r
- return Datatypes.translate(requiredValueType);\r
- } catch (DataTypeSyntaxError e) {\r
- return null;\r
- }\r
-\r
-\r
- }\r
-\r
- private static Datatype getArrayDataTypeForType(String type) {\r
- if("Double".equals(type)) return Datatypes.DOUBLE_ARRAY;\r
- else if("String".equals(type)) return Datatypes.STRING_ARRAY;\r
- else if("Integer".equals(type)) return Datatypes.INTEGER_ARRAY;\r
- else if("Long".equals(type)) return Datatypes.LONG_ARRAY;\r
- else if("Float".equals(type)) return Datatypes.FLOAT_ARRAY;\r
- else if("Byte".equals(type)) return Datatypes.BYTE_ARRAY;\r
- else if("Boolean".equals(type)) return Datatypes.BOOLEAN_ARRAY;\r
- else if("Variant".equals(type)) return Datatypes.VARIANT_ARRAY;\r
- return null;\r
- }\r
-\r
- public static Binding getDefaultBinding(ReadGraph graph, Variable variable) throws DatabaseException {\r
-\r
- Resource property = variable.getPossiblePredicateResource(graph);\r
- if(property != null) {\r
- PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(property), TransientCacheAsyncListener.<PropertyInfo>instance());\r
- if(info.defaultBinding != null) return info.defaultBinding;\r
- }\r
-\r
- Datatype type = getDatatype(graph, variable);\r
- if (type == null)\r
- throw new DatabaseException("No datatype available for variable " + variable.getURI(graph));\r
- return Bindings.getBinding(type);\r
-\r
- }\r
-\r
- public static Binding getPossibleDefaultBinding(ReadGraph graph, Variable variable) throws DatabaseException {\r
-\r
- Resource property = variable.getPossiblePredicateResource(graph);\r
- if(property != null) {\r
- PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(property), TransientCacheAsyncListener.<PropertyInfo>instance());\r
- if(info.defaultBinding != null) return info.defaultBinding;\r
- }\r
-\r
- Datatype type = getPossibleDatatype(graph, variable);\r
- if (type == null) return null;\r
-\r
- return Bindings.getBinding(type);\r
-\r
- }\r
-\r
- public static String getPossibleUnit(Datatype dt) {\r
- if (dt == null)\r
- return null;\r
- else if (dt instanceof NumberType) {\r
- return ((NumberType) dt).getUnit();\r
- } else if (dt instanceof ArrayType) {\r
- ArrayType at = (ArrayType) dt;\r
- Datatype cdt = at.componentType();\r
- if (cdt instanceof NumberType) {\r
- return ((NumberType) cdt).getUnit();\r
- }\r
- }\r
- return null;\r
-\r
- }\r
-\r
- public static String getUnit(ReadGraph graph, Variable variable) throws DatabaseException {\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Layer0X L0X = Layer0X.getInstance(graph);\r
-\r
- Resource literal = variable.getPossibleRepresents(graph);\r
- if(literal == null)\r
- return "";\r
-\r
- Datatype literalDatatype = graph.getPossibleRelatedValue2(literal, L0.HasDataType, new StandardGraphPropertyVariable(graph, variable, null, literal, L0.HasDataType), datatype_binging);\r
- if(literalDatatype != null) {\r
- String unit = getPossibleUnit(literalDatatype);\r
- if(unit != null) return unit;\r
- }\r
-\r
- Resource property = variable.getPossiblePredicateResource(graph);\r
- if(property != null) {\r
-\r
- Datatype requiredDataType = graph.getPossibleRelatedValue(property, L0X.RequiresDataType, datatype_binging);\r
- if(requiredDataType != null) {\r
- String unit = getPossibleUnit(requiredDataType);\r
- if(unit != null) return unit;\r
- }\r
-\r
- }\r
-\r
- return "";\r
-\r
- }\r
-\r
- public static void claimAdaptedValue(WriteGraph graph, Resource objectResource, Object value, Binding binding, Datatype datatype) throws DatabaseException {\r
-\r
- try {\r
-\r
- Datatype source = binding.type();\r
- if(source.equals(datatype)) {\r
- graph.claimValue(objectResource, value, binding);\r
- } else {\r
- Binding target = Bindings.getBinding(datatype);\r
- Adapter adapter = Bindings.getAdapter(binding, target);\r
- graph.claimValue(objectResource, adapter.adapt(value), target);\r
- }\r
-\r
- } catch (AdapterConstructionException e) {\r
- throw new DatabaseException(e);\r
- } catch (AdaptException e) {\r
- throw new DatabaseException(e);\r
- }\r
-\r
- }\r
-\r
- public static String toString(Object value, Binding binding) throws DatabaseException {\r
- try {\r
- if(value instanceof String) return (String)value;\r
- StringBuilder sb = new StringBuilder();\r
- DataValueRepository rep = new DataValueRepository();\r
- binding.printValue(value, sb, rep, false);\r
- return sb.toString();\r
- } catch (BindingException e) {\r
- throw new DatabaseException(e);\r
- } catch (IOException e) {\r
- throw new DatabaseException(e);\r
- }\r
- }\r
-\r
- public static Object parseValue(String text, Binding binding) throws DatabaseException {\r
- try {\r
- if(binding.isInstance(text)) return text;\r
- DataValueRepository rep = new DataValueRepository();\r
- return binding.parseValue(text, rep);\r
- } catch (BindingException e) {\r
- throw new DatabaseException(e);\r
- } catch (DataTypeSyntaxError e) {\r
- throw new DatabaseException(e);\r
- }\r
- }\r
-\r
- @SuppressWarnings("unchecked")\r
- public static <T> T getValueAdaptedToBinding(ReadGraph graph, Resource literal, Binding targetBinding) throws DatabaseException {\r
- Datatype sourceDatatype = graph.getDataType(literal);\r
- Datatype targetDatatype = targetBinding.type();\r
- if (sourceDatatype.equals(targetDatatype))\r
- return graph.getValue(literal, targetBinding);\r
-\r
- Binding sourceBinding = Bindings.getBinding(sourceDatatype);\r
- try {\r
- Adapter adapter = Bindings.adapterFactory.getAdapter(Bindings.getBinding(sourceDatatype), targetBinding, true, false);\r
- Object value = graph.getValue(literal, sourceBinding);\r
- return (T) adapter.adaptUnchecked(value);\r
- } catch (AdapterConstructionException e) {\r
- throw new DatabaseException(e);\r
- }\r
- }\r
-\r
- public static Statement getStatementInLocal(Resource subject, Statement statement) {\r
- if(statement.isAsserted(subject)) return new StandardStatement(subject, statement.getPredicate(), statement.getObject());\r
- else return statement;\r
- }\r
-\r
- public static Resource browsePossible(ReadGraph graph, Resource root, String suffix) throws DatabaseException {\r
- return graph.getPossibleResource(graph.getURI(root) + suffix);\r
- }\r
-\r
- public static Resource getPossibleChild(ReadGraph graph, Resource resource, String name) throws DatabaseException {\r
- return graph.sync(new PossibleChild(resource, name));\r
- }\r
-\r
- public static Resource getPossibleChild(ReadGraph graph, Resource resource, Resource type, String name) throws DatabaseException {\r
- Resource child = graph.sync(new PossibleChild(resource, name));\r
- if(child == null) return null;\r
- if(!graph.isInstanceOf(child, type)) return null;\r
- return child;\r
- }\r
-\r
- public static RelationContext relationContext(ReadGraph graph, Resource subject, Resource predicate) throws DatabaseException {\r
- Statement stm = graph.getSingleStatement(subject, predicate);\r
- return new RelationContextImpl(subject, stm);\r
- }\r
-\r
- public static RelationContext relationContext(Statement stm) throws DatabaseException {\r
- return new RelationContextImpl(stm.getSubject(), stm);\r
- }\r
-\r
- public static <T> T valueInRelationContext(ReadGraph graph, Resource subject, Statement stm) throws DatabaseException {\r
- return graph.getValue2(subject, Layer0Utils.relationContext(stm));\r
- }\r
-\r
- public static <T> T valueInRelationContext(ReadGraph graph, Resource subject, Statement stm, Binding binding) throws DatabaseException {\r
- return graph.getValue2(subject, Layer0Utils.relationContext(stm), binding);\r
- }\r
-\r
- public static <T> T relatedValueInRelationContext(ReadGraph graph, Resource subject, Resource relation) throws DatabaseException {\r
- Statement stm = getStatementInLocal(subject, graph.getSingleStatement(subject, relation));\r
- return valueInRelationContext(graph, stm.getObject(), stm);\r
- }\r
-\r
- public static <T> T relatedValueInRelationContext(ReadGraph graph, Resource subject, Resource relation, Binding binding) throws DatabaseException {\r
- Statement stm = getStatementInLocal(subject, graph.getSingleStatement(subject, relation));\r
- return valueInRelationContext(graph, stm.getObject(), stm, binding);\r
- }\r
-\r
- public static Statement possibleObtainedStatementInternal(ReadGraph graph, Resource subject, Resource relation) throws DatabaseException {\r
-\r
- Layer0X L0X = Layer0X.getInstance(graph);\r
-\r
- for(Resource ob : graph.getObjects(subject, L0X.DefinesObtainedStatement)) {\r
- Resource pred = graph.getSingleObject(ob, L0X.ObtainedStatement_predicate);\r
- if(graph.isSubrelationOf(pred, relation)) {\r
- Resource object = graph.getSingleObject(ob, L0X.ObtainedStatement_object);\r
- return new StandardStatement(subject, pred, object);\r
- }\r
- }\r
-\r
- ArrayList<OrderedResource> order = new ArrayList<OrderedResource>();\r
- for(Statement stm : graph.getStatements(subject, L0X.ObtainsProperty)) {\r
- Integer position = graph.getRelatedValue(stm.getPredicate(), L0X.NaturalNumberOrderRelation, Bindings.INTEGER);\r
- order.add(new OrderedResource(position, stm.getObject()));\r
- }\r
-\r
- for(OrderedResource or : order) {\r
- Statement stm = possibleObtainedStatementInternal(graph, or.r, relation);\r
- if(stm != null) return stm;\r
- }\r
-\r
- return null;\r
-\r
- }\r
-\r
- public static <T> T possibleObtainedValue(ReadGraph graph, RelationContext ctx, Binding binding) throws DatabaseException {\r
-\r
- Statement stm = ctx.getStatement();\r
- Statement obj = Layer0Utils.possibleObtainedStatementInternal(graph, stm.getSubject(), stm.getPredicate());\r
-\r
- if(obj != null) {\r
- return Layer0Utils.valueInRelationContext(graph, obj.getObject(), obj, binding);\r
- } else {\r
- return null;\r
- }\r
-\r
- }\r
-\r
- public static void addObtainedStatement(WriteGraph graph, Resource subject, Resource predicate, Resource object) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Layer0X L0X = Layer0X.getInstance(graph);\r
- Resource ob = graph.newResource();\r
- graph.claim(ob, L0.InstanceOf, null, L0X.ObtainedStatement);\r
- graph.claim(ob, L0X.ObtainedStatement_predicate, null, predicate);\r
- graph.claim(ob, L0X.ObtainedStatement_object, null, object);\r
- graph.claim(subject, L0X.DefinesObtainedStatement, null, ob);\r
- }\r
-\r
- public static void addObtainedValue(WriteGraph graph, Resource subject, Resource predicate, Resource type, Object value, Binding binding) throws DatabaseException {\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Resource object = graph.newResource();\r
- graph.claim(object, L0.InstanceOf, type);\r
- graph.claimValue(object, value, binding);\r
- Layer0Utils.addObtainedStatement(graph, subject, predicate, object);\r
- }\r
-\r
- //-------------------------------------------------------------------------\r
- // Indexing state query utilities idle handling utilities\r
- //-------------------------------------------------------------------------\r
-\r
- /**\r
- * This method waits until the indexing engine becomes idle.\r
- * @since 1.8\r
- */\r
- public static void waitIndexPending() {\r
- Indexing.waitIndexPending();\r
- }\r
-\r
- /**\r
- * @param graph an active database write handle to prove one is in a write\r
- * transaction and wants to disable dependencies indexing for this\r
- * transaction only.\r
- * @return previous value\r
- * @since 1.8\r
- */\r
- public static boolean setDependenciesIndexingDisabled(WriteOnlyGraph graph, boolean disabled) {\r
- return Indexing.setDependenciesIndexingDisabled(graph, disabled);\r
- }\r
-\r
- public static String undo() throws DatabaseException {\r
-\r
- Session session = SimanticsInternal.getSession();\r
-\r
- UndoRedoSupport support = session.getService(UndoRedoSupport.class);\r
-\r
- List<Operation> ops = support.undoAndReturnOperations(session, 1);\r
- if(ops.isEmpty())\r
- return "Undo history is empty.";\r
-\r
- Operation mainOperation = ops.get(0);\r
-\r
- long csId = mainOperation.getCSId();\r
-\r
- ManagementSupport management = session.getService(ManagementSupport.class);\r
- Collection<ChangeSetIdentifier> ids = management.getChangeSetIdentifiers(csId, csId);\r
-\r
- return "Undo reverted " + ids.size() + " change sets.";\r
-\r
- }\r
-\r
- public static String undoOperations(int amountOfOperations) throws DatabaseException {\r
-\r
- Session session = SimanticsInternal.getSession();\r
-\r
- UndoRedoSupport support = session.getService(UndoRedoSupport.class);\r
-\r
- List<Operation> ops = support.undoAndReturnOperations(session, amountOfOperations);\r
- if(ops.isEmpty())\r
- return "Undo history is empty.";\r
-\r
- Operation mainOperation = ops.get(0);\r
-\r
- long csId = mainOperation.getCSId();\r
-\r
- ManagementSupport management = session.getService(ManagementSupport.class);\r
- Collection<ChangeSetIdentifier> ids = management.getChangeSetIdentifiers(csId, csId);\r
-\r
- return "Undo reverted " + ids.size() + " change sets.";\r
-\r
- }\r
-\r
- public static String redo() throws DatabaseException {\r
-\r
- Session session = SimanticsInternal.getSession();\r
-\r
- UndoRedoSupport support = session.getService(UndoRedoSupport.class);\r
-\r
- List<Operation> ops = support.redo(session, 1);\r
- if(ops.isEmpty())\r
- return "Redo history is empty.";\r
-\r
- Operation mainOperation = ops.get(0);\r
-\r
- long csId = mainOperation.getCSId();\r
-\r
- ManagementSupport management = session.getService(ManagementSupport.class);\r
- Collection<ChangeSetIdentifier> ids = management.getChangeSetIdentifiers(csId, csId);\r
-\r
- return "Redo redid " + ids.size() + " change sets.";\r
-\r
- }\r
-\r
- public static String getComment(Session session, ChangeSetIdentifier id) {\r
- byte[] data = id.getMetadata().get(CommentMetadata.class.getName());\r
- if(data == null)\r
- return "Undescribed operation.";\r
- String comment = CommentMetadata.deserialise(session, data).toString().trim();\r
- if(comment.isEmpty())\r
- return "Undescribed operation.";\r
- return comment;\r
- }\r
-\r
- /**\r
- * This method adds CommentMetadata for write transaction. CommentMetadata is used e.g. in Undo view.\r
- * @param graph\r
- * graph handle\r
- * @param string\r
- * comment\r
- * @throws ServiceException\r
- */\r
- public static void addCommentMetadata(WriteOnlyGraph graph, String string) throws ServiceException {\r
- // Add a comment to metadata.\r
- CommentMetadata cm = graph.getMetadata(CommentMetadata.class);\r
- graph.addMetadata(cm.add(ObjectUtils.toString(string)));\r
- }\r
-\r
- //-------------------------------------------------------------------------\r
-\r
- /**\r
- * Copy the specified source resource into the specified container using the\r
- * specified write transaction handle.\r
- *\r
- * @param graph write transaction handle\r
- * @param targetContainer target container resource of the created copy. The\r
- * exact logic of how the copy will be contained by the target\r
- * container is up to the PasteHandler to decide\r
- * @param source the source resource to copy\r
- * @throws DatabaseException\r
- * @since 1.8\r
- */\r
- public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, Resource source) throws DatabaseException {\r
- return copyTo(graph, targetContainer, source, null, null, null);\r
- }\r
-\r
- public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, Resource source, PasteEventHandler handler) throws DatabaseException {\r
- return copyTo(graph, targetContainer, source, handler, null, null);\r
- }\r
-\r
- public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, Resource source, PasteEventHandler handler, CopyHandler copyHandler, PasteHandler pasteHandler) throws DatabaseException {\r
- if(copyHandler == null) copyHandler = graph.adapt(source, CopyHandler.class);\r
- return copyTo(graph, targetContainer, handler, copyHandler, pasteHandler);\r
- }\r
-\r
- public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, PasteEventHandler handler, CopyHandler copyHandler, PasteHandler pasteHandler) throws DatabaseException {\r
- SimanticsClipboardImpl clipboard = new SimanticsClipboardImpl();\r
- copyHandler.copyToClipboard(graph, clipboard);\r
- if(targetContainer != null) {\r
- if(pasteHandler == null) pasteHandler = graph.adapt(targetContainer, PasteHandler.class);\r
- return pasteHandler.pasteFromClipboard(graph, clipboard, handler);\r
- } else {\r
- DefaultPasteHandler ph = new DefaultPasteHandler(null);\r
- return ph.pasteFromClipboard(graph, clipboard, handler);\r
- }\r
- }\r
-\r
- public static CopyHandler2 getPossibleCopyHandler(ReadGraph graph, Collection<Resource> rs) throws DatabaseException {\r
- CopyHandler2 ch = null;\r
- for(Resource r : rs) {\r
- if(ch == null) {\r
- CopyHandler ch2_ = graph.adapt(r, CopyHandler.class);\r
- if(ch2_ instanceof CopyHandler2) {\r
- ch = (CopyHandler2)ch2_;\r
- }\r
- } else {\r
- CopyHandler ch2_ = graph.adapt(r, CopyHandler.class);\r
- if(ch2_ instanceof CopyHandler2) {\r
- CopyHandler2 ch2 = (CopyHandler2)ch2_;\r
- ch = ch.combine(ch2);\r
- }\r
- }\r
- }\r
- return ch;\r
- }\r
-\r
- public static ClusterCollectorPolicy setClusterCollectorPolicy(ClusterCollectorPolicy policy) {\r
- Session session = SimanticsInternal.getSession();\r
- ClusterControl cc = session.getService(ClusterControl.class);\r
- return cc.setPolicy(policy);\r
- }\r
-\r
- private static String decodeType(ReadGraph graph, Variable variable) throws DatabaseException {\r
- Datatype dt = getDatatype(graph, variable);\r
- return dt.toSingleLineString();\r
- }\r
-\r
- private static boolean isAsserted(ReadGraph graph, Resource subject, Resource predicate) throws DatabaseException {\r
- Statement stm = graph.getPossibleStatement(subject, predicate);\r
- return stm != null && stm.isAsserted(subject);\r
- }\r
-\r
- public static void setExpression(WriteGraph graph, Variable context, String text, Resource expressionValueType) throws DatabaseException {\r
- \r
- Resource value = context.getRepresents(graph);\r
- Resource predicateResource = context.getPredicateResource(graph);\r
- Variable parent = context.getParent(graph);\r
- Resource parentResource = parent.getRepresents(graph);\r
- setExpression(graph, parentResource, predicateResource, value, text, expressionValueType);\r
-\r
- }\r
-\r
- public static void setExpression(WriteGraph graph, Resource parentResource, Resource predicateResource, Resource value, String text, Resource expressionValueType) throws DatabaseException {\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- boolean hasExpression = graph.isInstanceOf(value, expressionValueType);\r
- String t = getSCLTypeString(graph, predicateResource, value);\r
- String expression = text.substring(1).trim();\r
- if(isAsserted(graph, parentResource, predicateResource)) {\r
- Resource newValue = graph.newResource();\r
- graph.claim(newValue, L0.InstanceOf, expressionValueType);\r
- graph.claimLiteral(newValue, L0.HasValueType, t, Bindings.STRING);\r
- graph.claimLiteral(newValue, L0.SCLValue_expression, expression, Bindings.STRING);\r
- graph.claim(parentResource, predicateResource, newValue);\r
- } else {\r
- if(hasExpression) {\r
- graph.claimLiteral(value, L0.SCLValue_expression, expression, Bindings.STRING);\r
- } else {\r
- Resource newValue = graph.newResource();\r
- graph.claim(newValue, L0.InstanceOf, expressionValueType);\r
- graph.claimLiteral(newValue, L0.HasValueType, t, Bindings.STRING);\r
- graph.claimLiteral(newValue, L0.SCLValue_expression, expression, Bindings.STRING);\r
- graph.deny(parentResource, predicateResource);\r
- graph.claim(parentResource, predicateResource, newValue);\r
- }\r
- }\r
-\r
- }\r
-\r
- public static void clearExpression(WriteGraph graph, Variable property, Resource expressionValueType) throws DatabaseException {\r
-\r
- Resource object = property.getPossibleRepresents(graph);\r
- if(object != null) {\r
- boolean hasExpression = graph.isInstanceOf(object, expressionValueType);\r
- if(hasExpression) {\r
- // There was an expression and now we go back to a value\r
- Resource subject = property.getParent(graph).getPossibleRepresents(graph);\r
- if(subject != null) {\r
- Resource predicate = property.getPossiblePredicateResource(graph);\r
- if(predicate != null) {\r
- graph.deny(subject, predicate, object);\r
- RemoverUtil.remove(graph, object);\r
- }\r
- }\r
- }\r
- }\r
-\r
- }\r
-\r
- public static boolean setOrClearExpression(WriteGraph graph, Variable property, String text, Resource expressionValueType) throws DatabaseException {\r
-\r
- if(text.startsWith("=")) {\r
- setExpression(graph, property, text, expressionValueType);\r
- return true;\r
- }\r
-\r
- clearExpression(graph, property, expressionValueType);\r
-\r
- return false;\r
-\r
- }\r
-\r
- public static void setValueAsString(WriteGraph graph, Variable property, String text, Resource expressionValueType) throws DatabaseException {\r
-\r
- try {\r
-\r
- if (setOrClearExpression(graph, property, text, expressionValueType))\r
- return;\r
-\r
- Object value = text;\r
- Datatype type = property.getPossibleDatatype(graph);\r
- if (type != null) {\r
-\r
- Binding binding = Bindings.getBinding(type);\r
-\r
- if (binding instanceof StringBinding) {\r
-\r
- if (binding instanceof MutableStringBinding)\r
- value = new MutableString(text);\r
- else\r
- value = text;\r
-\r
- } else {\r
-\r
- if (binding instanceof NumberBinding) {\r
- text = text.replace(",", ".");\r
- }\r
-\r
- value = binding.parseValue(text, new DataValueRepository());\r
-\r
- }\r
-\r
- property.setValue(graph, value, binding);\r
-\r
- } else {\r
-\r
- property.setValue(graph, value);\r
-\r
- }\r
-\r
- // Add a comment to metadata.\r
- CommentMetadata cm = graph.getMetadata(CommentMetadata.class);\r
- graph.addMetadata(cm.add("Set value " + ObjectUtils.toString(value)));\r
-\r
- } catch (DataTypeSyntaxError e) {\r
- throw new DatabaseException(e);\r
- } catch (BindingException e) {\r
- throw new DatabaseException(e);\r
- }\r
-\r
- }\r
-\r
-\r
- public static String queryDebugSupport(String query) {\r
- Session session = SimanticsInternal.getSession();\r
- DebugSupport ds = session.getService(DebugSupport.class);\r
- return ds.query(session, "exec " + query);\r
- }\r
-\r
- public static String queryListSupport (String query) {\r
- Session session = SimanticsInternal.getSession();\r
- DebugSupport ds = session.getService(DebugSupport.class);\r
- return ds.query(session, "list " + query);\r
- }\r
-\r
- final public static Function1<Resource,Resource> resourceCluster = new FunctionImpl1<Resource, Resource>() {\r
- @Override\r
- public Resource apply(Resource p0) {\r
- return p0;\r
- }\r
- };\r
-\r
- public static void sort(ReadGraph graph, List<Resource> collection) {\r
- CollectionSupport cos = graph.getService(CollectionSupport.class);\r
- cos.sort(collection);\r
- }\r
-\r
- public static List<Resource> sortByCluster(ReadGraph graph, Collection<Resource> collection) {\r
- CollectionSupport cos = graph.getService(CollectionSupport.class);\r
- return cos.asSortedList(collection);\r
- }\r
-\r
- public static List<Object> sortByCluster(final ReadGraph graph, List<Object> list, final Function1<Object,Resource> fn) {\r
- final ClusteringSupport cs = graph.getService(ClusteringSupport.class);\r
- ArrayList<Object> result = new ArrayList<Object>(list);\r
- Collections.sort(result, new Comparator<Object>() {\r
-\r
- @Override\r
- public int compare(Object o1, Object o2) {\r
- Resource r1 = fn.apply(o1);\r
- Resource r2 = fn.apply(o2);\r
- long l1 = cs.getCluster(r1);\r
- long l2 = cs.getCluster(r2);\r
- if(l1 < l2) return -1;\r
- else if (l1 > l2) return 1;\r
- else return 0;\r
- }\r
-\r
- });\r
- return result;\r
- }\r
-\r
- public static <T> List<T> sortByClusterT(final ReadGraph graph, Collection<T> list, final Function1<T,Resource> fn) {\r
- final ClusteringSupport cs = graph.getService(ClusteringSupport.class);\r
- ArrayList<T> result = new ArrayList<T>(list);\r
- Collections.sort(result, new Comparator<Object>() {\r
-\r
- @Override\r
- public int compare(Object o1, Object o2) {\r
- Resource r1 = fn.apply((T)o1);\r
- Resource r2 = fn.apply((T)o2);\r
- long l1 = cs.getCluster(r1);\r
- long l2 = cs.getCluster(r2);\r
- if(l1 < l2) return -1;\r
- else if (l1 > l2) return 1;\r
- else return 0;\r
- }\r
-\r
- });\r
- return result;\r
- }\r
-\r
- public static void makeSynchronous(ReadGraph graph, boolean value) throws DatabaseException {\r
- graph.setSynchronous(value);\r
- }\r
-\r
- public static Set<Resource> listIndexRoots(ReadGraph graph) throws DatabaseException {\r
- \r
- Layer0 L0 = Layer0.getInstance(graph);\r
- \r
- Set<Resource> indexRoots = new TreeSet<Resource>();\r
- indexRoots.addAll(Layer0Utils.listOntologies(graph));\r
- indexRoots.addAll(graph.syncRequest(new ObjectsWithType(SimanticsInternal.getProject(), L0.ConsistsOf, L0.IndexRoot)));\r
- return indexRoots;\r
-\r
- }\r
- \r
- public static List<Resource> listOntologies(ReadGraph graph) throws DatabaseException {\r
- return graph.syncRequest(new OntologiesFromLibrary(graph.getRootLibrary()));\r
- }\r
-\r
- public static List<Resource> listGlobalOntologies(ReadGraph graph) throws DatabaseException {\r
- return graph.syncRequest(new GlobalOntologies(graph.getRootLibrary()));\r
- }\r
-\r
- public static <T> T applySCL(String module, String function, ReadGraph graph, Object ... args) throws DatabaseException {\r
-\r
- try {\r
- SCL_GRAPH.set(graph);\r
- T t = (T)((Function)SCLOsgi.MODULE_REPOSITORY.getValue(module + "/" + function)).applyArray(args);\r
- SCL_GRAPH.set(null);\r
- return t;\r
- } catch (Throwable t) {\r
- throw new DatabaseException(t);\r
- }\r
-\r
- }\r
-\r
- public static boolean isContainerPublished(ReadGraph graph, Variable variable) throws DatabaseException {\r
-\r
- Resource indexRoot = graph.syncRequest(new PossibleVariableIndexRoot(variable));\r
- if(indexRoot == null) return false;\r
- if(variable.equals(indexRoot)) return false;\r
- return isPublished(graph, indexRoot);\r
-\r
- }\r
-\r
- public static boolean isContainerPublished(ReadGraph graph, Resource resource) throws DatabaseException {\r
-\r
- Resource indexRoot = graph.syncRequest(new PossibleIndexRoot(resource));\r
- if(indexRoot == null) return false;\r
- if(resource.equals(indexRoot)) return false;\r
- return isPublished(graph, indexRoot);\r
-\r
- }\r
-\r
- public static boolean isPublished(ReadGraph graph, Resource resource) throws DatabaseException {\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Boolean value = graph.getPossibleRelatedValue(resource, L0.Entity_published, Bindings.BOOLEAN);\r
- if(value != null && value) return true;\r
-\r
- // This is safety - root should not be published it child is not\r
- Resource root = graph.syncRequest(new PossibleIndexRoot(resource));\r
- if(root != null) {\r
- value = graph.getPossibleRelatedValue(root, L0.Entity_published, Bindings.BOOLEAN);\r
- if(value != null && value) return true;\r
- }\r
-\r
- return false;\r
-\r
- }\r
-\r
- private static TransferableGraph1 makeTG(ReadGraph graph, Resource r) throws DatabaseException {\r
-\r
- SimanticsClipboardImpl cp = new SimanticsClipboardImpl();\r
- CopyHandler c1 = graph.adapt(r, CopyHandler.class);\r
- c1.copyToClipboard(graph, cp);\r
- Collection<Set<Representation>> reps = cp.getContents();\r
- if(reps.size() != 1) return null;\r
- return ClipboardUtils.accept(graph, reps.iterator().next(), SimanticsKeys.KEY_TRANSFERABLE_GRAPH);\r
-\r
- }\r
-\r
- private static TransferableGraphSource makeTGSource(ReadGraph graph, Resource r) throws DatabaseException {\r
-\r
- SimanticsClipboardImpl cp = new SimanticsClipboardImpl();\r
- CopyHandler c1 = graph.adapt(r, CopyHandler.class);\r
- c1.copyToClipboard(graph, cp);\r
- Collection<Set<Representation>> reps = cp.getContents();\r
- if(reps.size() != 1) return null;\r
- return ClipboardUtils.accept(graph, reps.iterator().next(), SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE);\r
-\r
- }\r
-\r
- /*\r
- * Modifies target to resemble source.\r
- */\r
- public static boolean merge(WriteGraph graph, Resource source, Resource target) throws DatabaseException {\r
-\r
- TransferableGraphSource tgs1 = makeTGSource(graph, target);\r
- TransferableGraph1 tg1 = TransferableGraphs.create(graph, tgs1);\r
- TransferableGraph1 tg2 = makeTG(graph, source);\r
-\r
- GraphRefactoringUtils.fixIncorrectRoot(tg1.identities);\r
- GraphRefactoringUtils.fixIncorrectRoot(tg2.identities);\r
-\r
- ModelTransferableGraphSource mtgs = (ModelTransferableGraphSource)tgs1;\r
-\r
- Diff diff = new Diff(tg1, tg2);\r
- TransferableGraphDelta1 delta = diff.diff();\r
-\r
- long[] oldResources = mtgs.getResourceArray(graph);\r
- if(TransferableGraphs.hasChanges(graph, oldResources, delta)) {\r
- TransferableGraphs.applyDelta(graph, mtgs.getResourceArray(graph), delta);\r
- return true;\r
- } else {\r
- return false;\r
- }\r
-\r
- }\r
-\r
- public static Resource inferLiteralTypeFromString(ReadGraph graph, String text) {\r
- return Layer0.getInstance(graph).String;\r
- }\r
-\r
- public static void emptyTrashBin(IProgressMonitor monitor) throws ServiceException {\r
- emptyTrashBin(monitor, SimanticsInternal.getSession(), SimanticsInternal.getProject());\r
- }\r
-\r
- public static void emptyTrashBin(final IProgressMonitor monitor, Session session, final Resource project) throws ServiceException {\r
- final SubMonitor mon = SubMonitor.convert(monitor, "Emptying Trash Bin...", 10000);\r
- try {\r
- session.syncRequest(new DelayedWriteRequest() {\r
- @Override\r
- public void perform(WriteGraph graph) throws DatabaseException {\r
- Layer0Utils.setDependenciesIndexingDisabled(graph, true);\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- Layer0X L0X = Layer0X.getInstance(graph);\r
- Resource parent = graph.getSingleObject(project, L0.PartOf);\r
- Resource trashBin = Layer0Utils.getPossibleChild(graph, parent, "TrashBin");\r
- Collection<Resource> trashes = trashBin != null\r
- ? graph.getObjects(trashBin, L0.ConsistsOf)\r
- : Collections.<Resource>emptyList();\r
- if (trashes.isEmpty())\r
- throw new CancelTransactionException();\r
- mon.setWorkRemaining((2 + trashes.size()) * 1000);\r
- for(Resource trash : trashes) {\r
- if (mon.isCanceled())\r
- throw new CancelTransactionException();\r
- mon.subTask(NameUtils.getSafeName(graph, trash));\r
- TGRemover remo = new TGRemover(mon.newChild(1000, SubMonitor.SUPPRESS_ALL_LABELS), trash);\r
- remo.remove(graph);\r
- if(graph.isInstanceOf(trash, L0.IndexRoot)) {\r
- // TODO: this should be an utility \r
- GenericRelationIndex index = graph.adapt(L0X.DependenciesRelation, GenericRelationIndex.class);\r
- IndexedRelations ir = graph.getService(IndexedRelations.class);\r
- // Deletes index files\r
- ir.reset(null, graph, L0X.DependenciesRelation, trash);\r
- // Notifies DB listeners\r
- index.reset(graph, trash);\r
- }\r
- }\r
- if (mon.isCanceled())\r
- throw new CancelTransactionException();\r
- mon.subTask("Committing Changes");\r
- mon.newChild(1000);\r
- }\r
- });\r
- if (mon.isCanceled())\r
- return;\r
- mon.subTask("Purging Database");\r
- mon.newChild(1000);\r
- XSupport xs = session.getService(XSupport.class);\r
- xs.purge();\r
- } catch (CancelTransactionException e) {\r
- // Ignore.\r
- } catch (DatabaseException e) {\r
- throw new ServiceException(e);\r
- }\r
- }\r
- \r
- public static Resource getSingleDomainOf(ReadGraph graph, Resource type, Resource target) throws DatabaseException {\r
- Resource result = null;\r
- for(Resource candidate : getDomainOf(graph, type).values()) {\r
- if(graph.isInstanceOf(candidate, target)) {\r
- if(result != null) throw new DatabaseException("Multiple relations found for target " + graph.getURI(target) + " in type " + graph.getURI(type));\r
- else result = candidate;\r
- }\r
- }\r
- if(result == null) throw new DatabaseException("Multiple relations found for target " + graph.getURI(target) + " in type " + graph.getURI(type));\r
- return result;\r
- }\r
-\r
- public static Map<String, Resource> getDomainOf(ReadGraph graph, Resource type) throws DatabaseException {\r
- CollectionSupport cs = graph.getService(CollectionSupport.class);\r
- Map<String, Resource> result = cs.createObjectResourceMap(String.class);\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- for(Resource r : graph.getObjects(type, L0.DomainOf)) {\r
- String name = graph.getPossibleRelatedValue(r, L0.HasName, Bindings.STRING);\r
- if(name != null) result.put(name, r);\r
- }\r
- for(Resource t : graph.getSupertypes(type)) {\r
- for(Resource r : graph.getObjects(t, L0.DomainOf)) {\r
- String name = graph.getPossibleRelatedValue(r, L0.HasName, Bindings.STRING);\r
- if(name != null) result.put(name, r);\r
- }\r
- }\r
- return result;\r
- }\r
- \r
- public static Resource getPossiblePredicateByName(ReadGraph graph, Resource instance, String predicateName) throws DatabaseException {\r
- for(Resource type : graph.getPrincipalTypes(instance)) {\r
- Map<String, Resource> domainOf = getDomainOf(graph, type);\r
- Resource predicate = domainOf.get(predicateName);\r
- if(predicate != null) return predicate;\r
- }\r
- return null;\r
- }\r
- \r
- \r
- public static void claimLiteralDataboard(WriteGraph graph, Resource container, Resource property, String valueText) throws DatabaseException {\r
-\r
- try {\r
- PropertyInfo pi = graph.syncRequest(new PropertyInfoRequest(property));\r
- if(pi.literalRange == null) throw new DatabaseException("No suitable literal type defined as range for property.");\r
- if(pi.defaultBinding == null) throw new DatabaseException("No suitable default binding for property.");\r
- Object value = pi.defaultBinding.parseValue(valueText, new DataValueRepository());\r
- graph.claimLiteral(container, property, pi.literalRange, value, pi.defaultBinding);\r
- } catch (DataTypeSyntaxError e) {\r
- throw new DatabaseException(e);\r
- } catch (BindingException e) {\r
- throw new DatabaseException(e);\r
- }\r
- \r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2012 Association for Decentralized Information Management in
+ * Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.layer0.util;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeSet;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.core.runtime.SubMonitor;
+import org.simantics.databoard.Bindings;
+import org.simantics.databoard.Datatypes;
+import org.simantics.databoard.adapter.AdaptException;
+import org.simantics.databoard.adapter.Adapter;
+import org.simantics.databoard.adapter.AdapterConstructionException;
+import org.simantics.databoard.binding.Binding;
+import org.simantics.databoard.binding.NumberBinding;
+import org.simantics.databoard.binding.StringBinding;
+import org.simantics.databoard.binding.error.BindingException;
+import org.simantics.databoard.binding.mutable.MutableStringBinding;
+import org.simantics.databoard.parser.repository.DataTypeSyntaxError;
+import org.simantics.databoard.parser.repository.DataValueRepository;
+import org.simantics.databoard.primitives.MutableString;
+import org.simantics.databoard.type.ArrayType;
+import org.simantics.databoard.type.BooleanType;
+import org.simantics.databoard.type.ByteType;
+import org.simantics.databoard.type.Datatype;
+import org.simantics.databoard.type.DoubleType;
+import org.simantics.databoard.type.FloatType;
+import org.simantics.databoard.type.IntegerType;
+import org.simantics.databoard.type.LongType;
+import org.simantics.databoard.type.MapType;
+import org.simantics.databoard.type.NumberType;
+import org.simantics.databoard.type.OptionalType;
+import org.simantics.databoard.type.RecordType;
+import org.simantics.databoard.type.StringType;
+import org.simantics.databoard.type.UnionType;
+import org.simantics.databoard.type.VariantType;
+import org.simantics.databoard.util.ObjectUtils;
+import org.simantics.datatypes.literal.GUID;
+import org.simantics.db.ChangeSetIdentifier;
+import org.simantics.db.Operation;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.RelationContext;
+import org.simantics.db.Resource;
+import org.simantics.db.Session;
+import org.simantics.db.Statement;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.WriteOnlyGraph;
+import org.simantics.db.common.CommentMetadata;
+import org.simantics.db.common.Indexing;
+import org.simantics.db.common.StandardStatement;
+import org.simantics.db.common.primitiverequest.PossibleRelatedValue;
+import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
+import org.simantics.db.common.request.DelayedWriteRequest;
+import org.simantics.db.common.request.ObjectsWithType;
+import org.simantics.db.common.request.PossibleChild;
+import org.simantics.db.common.request.PossibleIndexRoot;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.event.ChangeListener;
+import org.simantics.db.exception.CancelTransactionException;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.ServiceException;
+import org.simantics.db.layer0.adapter.CopyHandler;
+import org.simantics.db.layer0.adapter.CopyHandler2;
+import org.simantics.db.layer0.adapter.GenericRelationIndex;
+import org.simantics.db.layer0.adapter.PasteHandler;
+import org.simantics.db.layer0.adapter.impl.DefaultPasteHandler;
+import org.simantics.db.layer0.adapter.impl.TGRemover;
+import org.simantics.db.layer0.genericrelation.IndexedRelations;
+import org.simantics.db.layer0.internal.SimanticsInternal;
+import org.simantics.db.layer0.migration.OntologiesFromLibrary;
+import org.simantics.db.layer0.property.OrderedResource;
+import org.simantics.db.layer0.request.GlobalOntologies;
+import org.simantics.db.layer0.request.PossibleVariableIndexRoot;
+import org.simantics.db.layer0.request.PropertyInfo;
+import org.simantics.db.layer0.request.PropertyInfoRequest;
+import org.simantics.db.layer0.util.SimanticsClipboard.Representation;
+import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.db.service.ClusterCollectorPolicy;
+import org.simantics.db.service.ClusterControl;
+import org.simantics.db.service.ClusteringSupport;
+import org.simantics.db.service.CollectionSupport;
+import org.simantics.db.service.DebugSupport;
+import org.simantics.db.service.GraphChangeListenerSupport;
+import org.simantics.db.service.ManagementSupport;
+import org.simantics.db.service.UndoRedoSupport;
+import org.simantics.db.service.XSupport;
+import org.simantics.graph.db.TransferableGraphSource;
+import org.simantics.graph.db.TransferableGraphs;
+import org.simantics.graph.diff.Diff;
+import org.simantics.graph.diff.TransferableGraphDelta1;
+import org.simantics.graph.refactoring.GraphRefactoringUtils;
+import org.simantics.graph.representation.PrettyPrintTG;
+import org.simantics.graph.representation.TransferableGraph1;
+import org.simantics.layer0.Layer0;
+import org.simantics.operation.Layer0X;
+import org.simantics.scl.compiler.environment.Environments;
+import org.simantics.scl.compiler.runtime.RuntimeEnvironment;
+import org.simantics.scl.compiler.top.SCLExpressionCompilationException;
+import org.simantics.scl.compiler.types.Type;
+import org.simantics.scl.osgi.SCLOsgi;
+import org.simantics.scl.runtime.function.Function;
+import org.simantics.scl.runtime.function.Function1;
+import org.simantics.scl.runtime.function.FunctionImpl1;
+
+public class Layer0Utils {
+
+ @SuppressWarnings("rawtypes")
+ public static final ThreadLocal SCL_GRAPH = new ThreadLocal();
+
+ final public static Binding datatype_binging = Bindings.getBindingUnchecked(Datatype.class);
+
+ public static Resource literal(WriteGraph g, String value) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(g);
+ Resource r = g.newResource();
+ g.claimValue(r, value, Bindings.STRING);
+ g.claim(r, L0.InstanceOf, L0.String);
+ return r;
+ }
+
+ public static Resource literal(WriteGraph g, double value) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(g);
+ Resource r = g.newResource();
+ g.claimValue(r, value, Bindings.DOUBLE);
+ g.claim(r, L0.InstanceOf, L0.Double);
+ return r;
+ }
+
+ public static Resource literal(WriteGraph g, int value) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(g);
+ Resource r = g.newResource();
+ g.claimValue(r, value, Bindings.INTEGER);
+ g.claim(r, L0.InstanceOf, L0.Integer);
+ return r;
+ }
+
+ public static void assert_(WriteGraph g, Resource type, Resource predicate, Resource object) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(g);
+ Resource assertion = g.newResource();
+ g.claim(type, L0.Asserts, assertion);
+ g.claim(assertion, L0.InstanceOf, L0.Assertion);
+ g.claim(assertion, L0.HasPredicate, predicate);
+ g.claim(assertion, L0.HasObject, object);
+ }
+
+ public static Resource relation(WriteGraph g, Resource parent, String name, Resource superrelation) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(g);
+ Resource relation = g.newResource();
+ g.claim(relation, L0.SubrelationOf, superrelation);
+ g.claim(relation, L0.HasName, literal(g, name));
+ g.claim(parent, L0.ConsistsOf, relation);
+
+ Resource superrelationInverse = g.getInverse(superrelation);
+ if(superrelationInverse != null) {
+ Resource inverse = g.newResource();
+ g.claim(inverse, L0.SubrelationOf, superrelationInverse);
+ g.claim(relation, L0.ConsistsOf, inverse);
+ g.claim(inverse, L0.HasName, literal(g, "Inverse"));
+ }
+ return relation;
+ }
+
+ private static Resource getLiteralType(ReadGraph graph, Datatype type) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(graph);
+ if(type instanceof DoubleType) return L0.Double;
+ else if(type instanceof StringType) return L0.String;
+ else if(type instanceof IntegerType) return L0.Integer;
+ else if(type instanceof LongType) return L0.Long;
+ else if(type instanceof FloatType) return L0.Float;
+ else if(type instanceof ByteType) return L0.Byte;
+ else if(type instanceof BooleanType) return L0.Boolean;
+ else if(type instanceof ArrayType) {
+ ArrayType at = (ArrayType)type;
+ if(at.componentType instanceof DoubleType) return L0.DoubleArray;
+ else if(at.componentType instanceof StringType) return L0.StringArray;
+ else if(at.componentType instanceof IntegerType) return L0.IntegerArray;
+ else if(at.componentType instanceof LongType) return L0.LongArray;
+ else if(at.componentType instanceof FloatType) return L0.FloatArray;
+ else if(at.componentType instanceof ByteType) return L0.ByteArray;
+ else if(at.componentType instanceof BooleanType) return L0.BooleanArray;
+ else if(at.componentType instanceof VariantType) return L0.VariantArray;
+ }
+ throw new DatabaseException("Unidentified literal type for datatype " + type);
+ }
+
+ private static Resource getPossibleLiteralType(ReadGraph graph, String type) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ if("Double".equals(type)) return L0.Double;
+ else if("String".equals(type)) return L0.String;
+ else if("Integer".equals(type)) return L0.Integer;
+ else if("Long".equals(type)) return L0.Long;
+ else if("Float".equals(type)) return L0.Float;
+ else if("Byte".equals(type)) return L0.Byte;
+ else if("Boolean".equals(type)) return L0.Boolean;
+ else if("[Double]".equals(type)) return L0.DoubleArray;
+ else if("[String]".equals(type)) return L0.StringArray;
+ else if("[Integer]".equals(type)) return L0.IntegerArray;
+ else if("[Long]".equals(type)) return L0.LongArray;
+ else if("[Float]".equals(type)) return L0.FloatArray;
+ else if("[Byte]".equals(type)) return L0.ByteArray;
+ else if("[Boolean]".equals(type)) return L0.BooleanArray;
+ else if("[Variant]".equals(type)) return L0.VariantArray;
+ else if("Array Double".equals(type)) return L0.DoubleArray;
+ else if("Array String".equals(type)) return L0.StringArray;
+ else if("Array Integer".equals(type)) return L0.IntegerArray;
+ else if("Array Long".equals(type)) return L0.LongArray;
+ else if("Array Float".equals(type)) return L0.FloatArray;
+ else if("Array Byte".equals(type)) return L0.ByteArray;
+ else if("Array Boolean".equals(type)) return L0.BooleanArray;
+ else if("Array Variant".equals(type)) return L0.VariantArray;
+ else if("Vector Double".equals(type)) return L0.DoubleArray;
+ else if("Vector String".equals(type)) return L0.StringArray;
+ else if("Vector Integer".equals(type)) return L0.IntegerArray;
+ else if("Vector Long".equals(type)) return L0.LongArray;
+ else if("Vector Float".equals(type)) return L0.FloatArray;
+ else if("Vector Byte".equals(type)) return L0.ByteArray;
+ else if("Vector Boolean".equals(type)) return L0.BooleanArray;
+ else if("Vector Variant".equals(type)) return L0.VariantArray;
+ else if("Datatype".equals(type)) return L0.DataType;
+ else if("Variant".equals(type)) return L0.Variant;
+ else return null;
+ }
+
+ public static Resource getPossibleLiteralType(ReadGraph graph, Variable variable) throws DatabaseException {
+ Resource predicate = variable.getPossiblePredicateResource(graph);
+ if(predicate == null) return null;
+ return getPossibleLiteralType(graph, predicate);
+ }
+
+ public static Resource getLiteralType(ReadGraph graph, Variable variable) throws DatabaseException {
+ Resource result = getPossibleLiteralType(graph, variable);
+ if(result == null) throw new DatabaseException("Unidentified literal type for variable " + variable.getURI(graph));
+ return result;
+ }
+
+ public static Resource getLiteralType(ReadGraph graph, Resource property) throws DatabaseException {
+ Resource result = getPossibleLiteralType(graph, property);
+ if(result == null) throw new DatabaseException("Unidentified literal type for property " + graph.getURI(property));
+ return result;
+ }
+
+ public static Resource getPossibleLiteralType(ReadGraph graph, Resource property) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ Layer0X L0X = Layer0X.getInstance(graph);
+
+ Resource defaultLiteralType = graph.getPossibleObject(property, L0.HasDefaultLiteralType);
+ if(defaultLiteralType != null) return defaultLiteralType;
+
+ Resource range = graph.getPossibleObject(property, L0.HasRange);
+ if(range != null && !L0.Value.equals(range)) return range;
+
+ Datatype requiredDataType = graph.getPossibleRelatedValue(property, L0X.RequiresDataType, datatype_binging);
+ if(requiredDataType != null) return getLiteralType(graph, requiredDataType);
+
+ String requiredValueType = graph.getPossibleRelatedValue(property, L0.RequiresValueType, Bindings.STRING);
+ if(requiredValueType == null) return null;
+
+ return getPossibleLiteralType(graph, requiredValueType);
+
+ }
+
+ /**
+ * @param type any data type definition
+ * @return SCL type that matches the specified data type on a basic level.
+ * Data type metadata is/cannot be converted into SCL types.
+ * @throws IllegalArgumentException
+ * if the input datatype can't be converted into an SCL type
+ */
+ public static String getSCLType(Datatype type) throws IllegalArgumentException {
+ return buildSCLType(type, null).toString();
+ }
+
+ /**
+ * Only used internally by {@link #buildSCLType(Datatype, StringBuilder)}
+ * @param s
+ * @param toBuilder
+ * @return
+ * @see #buildSCLType(Datatype, StringBuilder)
+ */
+ private static StringBuilder append(StringBuilder toBuilder, String s) {
+ return toBuilder != null ? toBuilder.append(s) : new StringBuilder(s);
+ }
+
+ private static CharSequence append(CharSequence to, String s) {
+ if (to instanceof StringBuilder)
+ return ((StringBuilder) to).append(s);
+ return new StringBuilder(to.length() + s.length()).append(to).append(s);
+ }
+
+ private static CharSequence stringOrBuilder(StringBuilder toBuilder, String s) {
+ return toBuilder != null ? toBuilder.append(s) : s;
+ }
+
+ /**
+ * @param type any data type definition
+ * @return SCL type that matches the specified data type on a basic level.
+ * Data type metadata is/cannot be converted into SCL types.
+ * @throws IllegalArgumentException
+ * if the input datatype can't be converted into an SCL type
+ */
+ private static CharSequence buildSCLType(Datatype type, StringBuilder result) throws IllegalArgumentException {
+ if(type instanceof DoubleType) return stringOrBuilder(result, "Double");
+ else if(type instanceof StringType) return stringOrBuilder(result, "String");
+ else if(type instanceof IntegerType) return stringOrBuilder(result, "Integer");
+ else if(type instanceof FloatType) return stringOrBuilder(result, "Float");
+ else if(type instanceof BooleanType) return stringOrBuilder(result, "Boolean");
+ else if(type instanceof ByteType) return stringOrBuilder(result, "Byte");
+ else if(type instanceof LongType) return stringOrBuilder(result, "Long");
+ else if(type instanceof VariantType) return stringOrBuilder(result, "Variant");
+ else if(type instanceof ArrayType) {
+ ArrayType at = (ArrayType) type;
+ // Optimization to prevent allocations in the most basic array cases
+ if(at.componentType instanceof DoubleType) return stringOrBuilder(result, "Vector Double");
+ else if(at.componentType instanceof StringType) return stringOrBuilder(result, "Vector String");
+ else if(at.componentType instanceof IntegerType) return stringOrBuilder(result, "Vector Integer");
+ else if(at.componentType instanceof FloatType) return stringOrBuilder(result, "Vector Float");
+ else if(at.componentType instanceof BooleanType) return stringOrBuilder(result, "Vector Boolean");
+ else if(at.componentType instanceof ByteType) return stringOrBuilder(result, "Vector Byte");
+ else if(at.componentType instanceof LongType) return stringOrBuilder(result, "Vector Long");
+ else if(at.componentType instanceof VariantType) return stringOrBuilder(result, "Vector Variant");
+ else return buildSCLType(at.componentType, append(result, "Vector "));
+ } else if(type instanceof OptionalType) {
+ OptionalType ot = (OptionalType) type;
+ return append(buildSCLType(ot.componentType, append(result, "Maybe (")), ")");
+ } else if (type instanceof RecordType) {
+ throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);
+ } else if (type instanceof MapType) {
+ throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);
+ } else if (type instanceof UnionType) {
+ throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);
+ }
+ throw new IllegalArgumentException("Unable to convert datatype into SCL type: " + type);
+ }
+
+
+ public static Type getSCLType(ReadGraph graph, RuntimeEnvironment runtimeEnvironment, String typeText) throws DatabaseException {
+ try {
+ return Environments.getType(runtimeEnvironment.getEnvironment(), typeText);
+ } catch (SCLExpressionCompilationException e) {
+ throw new DatabaseException(e);
+ }
+ }
+
+ public static Type getSCLType(ReadGraph graph, Variable property) throws DatabaseException {
+
+ RuntimeEnvironment runtimeEnvironment = graph.syncRequest(new RuntimeEnvironmentRequest(property.getIndexRoot(graph)));
+ return getSCLType(graph, runtimeEnvironment, getSCLTypeString(graph, property));
+
+ }
+
+
+ public static String getSCLTypeString(ReadGraph graph, Variable context) throws DatabaseException {
+ return getSCLTypeString(graph, context.getPossiblePredicateResource(graph), context.getRepresents(graph));
+ }
+
+
+ public static String getSCLTypeString(ReadGraph graph, Resource predicate, Resource value) throws DatabaseException {
+
+ if(predicate != null) {
+ String requiredValueTypes = graph.getPossibleRelatedValue(predicate, Layer0.getInstance(graph).RequiresValueType, Bindings.STRING);
+ if(requiredValueTypes != null)
+ return requiredValueTypes;
+ }
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ Layer0X L0X = Layer0X.getInstance(graph);
+
+ Datatype literalDatatype = graph.getPossibleRelatedValue(value, L0.HasDataType, datatype_binging);
+ if(literalDatatype != null) return getSCLType(literalDatatype);
+
+ String literalValueType = graph.getPossibleRelatedValue(value, L0.HasValueType, Bindings.STRING);
+ if(literalValueType != null) return literalValueType;
+
+ if(predicate != null) {
+
+ Datatype requiredDataType = graph.getPossibleRelatedValue(predicate, L0X.RequiresDataType, datatype_binging);
+ if(requiredDataType != null) return getSCLType(requiredDataType);
+
+ throw new DatabaseException("Unidentified literal data type for property " + NameUtils.getURIOrSafeNameInternal(graph, predicate));
+
+ }
+
+ throw new DatabaseException("Unidentified literal data type");
+
+ }
+
+ public static Datatype getDatatype(ReadGraph graph, Variable variable) throws DatabaseException {
+ Datatype result = getPossibleDatatype(graph, variable);
+ if(result != null) return result;
+ throw new DatabaseException("Unidentified literal data type for property " + variable.getURI(graph));
+ }
+
+ public static Datatype getPossibleDatatype(ReadGraph graph, Variable variable) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ Layer0X L0X = Layer0X.getInstance(graph);
+
+ Resource property = variable.getPossiblePredicateResource(graph);
+ if(property != null) {
+// Datatype requiredDataType = graph.getPossibleRelatedValue(property, L0X.RequiresDataType, datatype_binging);
+ Datatype requiredDataType = graph.syncRequest(new PossibleRelatedValue<Datatype>(property, L0X.RequiresDataType, datatype_binging));
+ if(requiredDataType != null) return requiredDataType;
+ }
+
+ Resource literal = variable.getPossibleRepresents(graph);
+ if(literal != null) {
+ Datatype literalDatatype = graph.getPossibleRelatedValue2(literal, L0.HasDataType, new StandardGraphPropertyVariable(graph, variable, null, literal, L0.HasDataType), datatype_binging);
+ if(literalDatatype != null) return literalDatatype;
+ }
+
+ if(property != null) {
+
+ String requiredValueType = graph.getPossibleRelatedValue(property, L0.RequiresValueType, Bindings.STRING);
+ if(requiredValueType != null) {
+ Datatype datatype = getPossibleDatatypeForValueType(requiredValueType);
+ if(datatype != null) return datatype;
+ }
+
+ Resource subject = variable.getParent(graph).getPossibleRepresents(graph);
+ if(subject != null) {
+ Set<Resource> asses = new HashSet<Resource>();
+ for(Resource type : graph.getTypes(subject)) {
+ asses.addAll(graph.getAssertedObjects(type, property));
+ }
+ if(asses.size() == 1) {
+ Resource ass = asses.iterator().next();
+ Datatype dt = graph.getPossibleRelatedValue(ass, L0.HasDataType, Bindings.getBindingUnchecked(Datatype.class));
+ if(dt != null) return dt;
+ }
+ }
+
+ }
+
+ return null;
+
+ }
+
+ private static Datatype getPossibleDatatypeForValueType(String requiredValueType) throws DatabaseException {
+
+ String[] split = requiredValueType.split(" ");
+ String arrayType = null;
+ if(split.length == 2 && "Array".equals(split[0])) {
+ arrayType = split[1];
+ } else if(requiredValueType.startsWith("[") && requiredValueType.endsWith("]")) {
+ arrayType = requiredValueType.substring(1, requiredValueType.length()-1);
+ }
+
+ if(arrayType != null) {
+ Datatype arrayDataType = getArrayDataTypeForType(arrayType);
+ if(arrayDataType != null)
+ return arrayDataType;
+ }
+
+ Datatype dt = Datatypes.getDatatype(requiredValueType);
+ if(dt != null) return dt;
+
+ try {
+ return Datatypes.translate(requiredValueType);
+ } catch (DataTypeSyntaxError e) {
+ return null;
+ }
+
+
+ }
+
+ private static Datatype getArrayDataTypeForType(String type) {
+ if("Double".equals(type)) return Datatypes.DOUBLE_ARRAY;
+ else if("String".equals(type)) return Datatypes.STRING_ARRAY;
+ else if("Integer".equals(type)) return Datatypes.INTEGER_ARRAY;
+ else if("Long".equals(type)) return Datatypes.LONG_ARRAY;
+ else if("Float".equals(type)) return Datatypes.FLOAT_ARRAY;
+ else if("Byte".equals(type)) return Datatypes.BYTE_ARRAY;
+ else if("Boolean".equals(type)) return Datatypes.BOOLEAN_ARRAY;
+ else if("Variant".equals(type)) return Datatypes.VARIANT_ARRAY;
+ return null;
+ }
+
+ public static Binding getDefaultBinding(ReadGraph graph, Variable variable) throws DatabaseException {
+
+ Resource property = variable.getPossiblePredicateResource(graph);
+ if(property != null) {
+ PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(property), TransientCacheAsyncListener.<PropertyInfo>instance());
+ if(info.defaultBinding != null) return info.defaultBinding;
+ }
+
+ Datatype type = getDatatype(graph, variable);
+ if (type == null)
+ throw new DatabaseException("No datatype available for variable " + variable.getURI(graph));
+ return Bindings.getBinding(type);
+
+ }
+
+ public static Binding getPossibleDefaultBinding(ReadGraph graph, Variable variable) throws DatabaseException {
+
+ Resource property = variable.getPossiblePredicateResource(graph);
+ if(property != null) {
+ PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(property), TransientCacheAsyncListener.<PropertyInfo>instance());
+ if(info.defaultBinding != null) return info.defaultBinding;
+ }
+
+ Datatype type = getPossibleDatatype(graph, variable);
+ if (type == null) return null;
+
+ return Bindings.getBinding(type);
+
+ }
+
+ public static String getPossibleUnit(Datatype dt) {
+ if (dt == null)
+ return null;
+ else if (dt instanceof NumberType) {
+ return ((NumberType) dt).getUnit();
+ } else if (dt instanceof ArrayType) {
+ ArrayType at = (ArrayType) dt;
+ Datatype cdt = at.componentType();
+ if (cdt instanceof NumberType) {
+ return ((NumberType) cdt).getUnit();
+ }
+ }
+ return null;
+
+ }
+
+ public static String getUnit(ReadGraph graph, Variable variable) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ Layer0X L0X = Layer0X.getInstance(graph);
+
+ Resource literal = variable.getPossibleRepresents(graph);
+ if(literal == null)
+ return "";
+
+ Datatype literalDatatype = graph.getPossibleRelatedValue2(literal, L0.HasDataType, new StandardGraphPropertyVariable(graph, variable, null, literal, L0.HasDataType), datatype_binging);
+ if(literalDatatype != null) {
+ String unit = getPossibleUnit(literalDatatype);
+ if(unit != null) return unit;
+ }
+
+ Resource property = variable.getPossiblePredicateResource(graph);
+ if(property != null) {
+
+ Datatype requiredDataType = graph.getPossibleRelatedValue(property, L0X.RequiresDataType, datatype_binging);
+ if(requiredDataType != null) {
+ String unit = getPossibleUnit(requiredDataType);
+ if(unit != null) return unit;
+ }
+
+ }
+
+ return "";
+
+ }
+
+ public static void claimAdaptedValue(WriteGraph graph, Resource objectResource, Object value, Binding binding, Datatype targetDatatype) throws DatabaseException {
+
+ try {
+
+ Datatype sourceDatatype = binding.type();
+ if(sourceDatatype.equals(targetDatatype)) {
+ graph.claimValue(objectResource, value, binding);
+ } else {
+ Binding target = Bindings.getBinding(targetDatatype);
+ Adapter adapter = Bindings.getTypeAdapter(binding, target);
+ graph.claimValue(objectResource, adapter.adapt(value), target);
+ }
+
+ } catch (AdapterConstructionException e) {
+ throw new DatabaseException(e);
+ } catch (AdaptException e) {
+ throw new DatabaseException(e);
+ }
+
+ }
+
+ public static String toString(Object value, Binding binding) throws DatabaseException {
+ try {
+ if(value instanceof String) return (String)value;
+ StringBuilder sb = new StringBuilder();
+ DataValueRepository rep = new DataValueRepository();
+ binding.printValue(value, sb, rep, false);
+ return sb.toString();
+ } catch (BindingException e) {
+ throw new DatabaseException(e);
+ } catch (IOException e) {
+ throw new DatabaseException(e);
+ }
+ }
+
+ public static Object parseValue(String text, Binding binding) throws DatabaseException {
+ try {
+ if(binding.isInstance(text)) return text;
+ DataValueRepository rep = new DataValueRepository();
+ return binding.parseValue(text, rep);
+ } catch (BindingException e) {
+ throw new DatabaseException(e);
+ } catch (DataTypeSyntaxError e) {
+ throw new DatabaseException(e);
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ public static <T> T getValueAdaptedToBinding(ReadGraph graph, Resource literal, Binding targetBinding) throws DatabaseException {
+ Datatype sourceDatatype = graph.getDataType(literal);
+ Datatype targetDatatype = targetBinding.type();
+ if (sourceDatatype.equals(targetDatatype))
+ return graph.getValue(literal, targetBinding);
+
+ Binding sourceBinding = Bindings.getBinding(sourceDatatype);
+ try {
+ Adapter adapter = Bindings.adapterFactory.getAdapter(Bindings.getBinding(sourceDatatype), targetBinding, true, false);
+ Object value = graph.getValue(literal, sourceBinding);
+ return (T) adapter.adaptUnchecked(value);
+ } catch (AdapterConstructionException e) {
+ throw new DatabaseException(e);
+ }
+ }
+
+ public static Statement getStatementInLocal(Resource subject, Statement statement) {
+ if(statement.isAsserted(subject)) return new StandardStatement(subject, statement.getPredicate(), statement.getObject());
+ else return statement;
+ }
+
+ public static Resource browsePossible(ReadGraph graph, Resource root, String suffix) throws DatabaseException {
+ return graph.getPossibleResource(graph.getURI(root) + suffix);
+ }
+
+ public static Resource getPossibleChild(ReadGraph graph, Resource resource, String name) throws DatabaseException {
+ return graph.sync(new PossibleChild(resource, name));
+ }
+
+ public static Resource getPossibleChild(ReadGraph graph, Resource resource, Resource type, String name) throws DatabaseException {
+ Resource child = graph.sync(new PossibleChild(resource, name));
+ if(child == null) return null;
+ if(!graph.isInstanceOf(child, type)) return null;
+ return child;
+ }
+
+ public static RelationContext relationContext(ReadGraph graph, Resource subject, Resource predicate) throws DatabaseException {
+ Statement stm = graph.getSingleStatement(subject, predicate);
+ return new RelationContextImpl(subject, stm);
+ }
+
+ public static RelationContext relationContext(Statement stm) throws DatabaseException {
+ return new RelationContextImpl(stm.getSubject(), stm);
+ }
+
+ public static <T> T valueInRelationContext(ReadGraph graph, Resource subject, Statement stm) throws DatabaseException {
+ return graph.getValue2(subject, Layer0Utils.relationContext(stm));
+ }
+
+ public static <T> T valueInRelationContext(ReadGraph graph, Resource subject, Statement stm, Binding binding) throws DatabaseException {
+ return graph.getValue2(subject, Layer0Utils.relationContext(stm), binding);
+ }
+
+ public static <T> T relatedValueInRelationContext(ReadGraph graph, Resource subject, Resource relation) throws DatabaseException {
+ Statement stm = getStatementInLocal(subject, graph.getSingleStatement(subject, relation));
+ return valueInRelationContext(graph, stm.getObject(), stm);
+ }
+
+ public static <T> T relatedValueInRelationContext(ReadGraph graph, Resource subject, Resource relation, Binding binding) throws DatabaseException {
+ Statement stm = getStatementInLocal(subject, graph.getSingleStatement(subject, relation));
+ return valueInRelationContext(graph, stm.getObject(), stm, binding);
+ }
+
+ public static Statement possibleObtainedStatementInternal(ReadGraph graph, Resource subject, Resource relation) throws DatabaseException {
+
+ Layer0X L0X = Layer0X.getInstance(graph);
+
+ for(Resource ob : graph.getObjects(subject, L0X.DefinesObtainedStatement)) {
+ Resource pred = graph.getSingleObject(ob, L0X.ObtainedStatement_predicate);
+ if(graph.isSubrelationOf(pred, relation)) {
+ Resource object = graph.getSingleObject(ob, L0X.ObtainedStatement_object);
+ return new StandardStatement(subject, pred, object);
+ }
+ }
+
+ ArrayList<OrderedResource> order = new ArrayList<OrderedResource>();
+ for(Statement stm : graph.getStatements(subject, L0X.ObtainsProperty)) {
+ Integer position = graph.getRelatedValue(stm.getPredicate(), L0X.NaturalNumberOrderRelation, Bindings.INTEGER);
+ order.add(new OrderedResource(position, stm.getObject()));
+ }
+
+ for(OrderedResource or : order) {
+ Statement stm = possibleObtainedStatementInternal(graph, or.r, relation);
+ if(stm != null) return stm;
+ }
+
+ return null;
+
+ }
+
+ public static <T> T possibleObtainedValue(ReadGraph graph, RelationContext ctx, Binding binding) throws DatabaseException {
+
+ Statement stm = ctx.getStatement();
+ Statement obj = Layer0Utils.possibleObtainedStatementInternal(graph, stm.getSubject(), stm.getPredicate());
+
+ if(obj != null) {
+ return Layer0Utils.valueInRelationContext(graph, obj.getObject(), obj, binding);
+ } else {
+ return null;
+ }
+
+ }
+
+ public static void addObtainedStatement(WriteGraph graph, Resource subject, Resource predicate, Resource object) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(graph);
+ Layer0X L0X = Layer0X.getInstance(graph);
+ Resource ob = graph.newResource();
+ graph.claim(ob, L0.InstanceOf, null, L0X.ObtainedStatement);
+ graph.claim(ob, L0X.ObtainedStatement_predicate, null, predicate);
+ graph.claim(ob, L0X.ObtainedStatement_object, null, object);
+ graph.claim(subject, L0X.DefinesObtainedStatement, null, ob);
+ }
+
+ public static void addObtainedValue(WriteGraph graph, Resource subject, Resource predicate, Resource type, Object value, Binding binding) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(graph);
+ Resource object = graph.newResource();
+ graph.claim(object, L0.InstanceOf, type);
+ graph.claimValue(object, value, binding);
+ Layer0Utils.addObtainedStatement(graph, subject, predicate, object);
+ }
+
+ //-------------------------------------------------------------------------
+ // Indexing state query utilities idle handling utilities
+ //-------------------------------------------------------------------------
+
+ /**
+ * This method waits until the indexing engine becomes idle.
+ * @since 1.8
+ */
+ public static void waitIndexPending() {
+ Indexing.waitIndexPending();
+ }
+
+ /**
+ * @param graph an active database write handle to prove one is in a write
+ * transaction and wants to disable dependencies indexing for this
+ * transaction only.
+ * @return previous value
+ * @since 1.8
+ */
+ public static boolean setDependenciesIndexingDisabled(WriteOnlyGraph graph, boolean disabled) {
+ return Indexing.setDependenciesIndexingDisabled(graph, disabled);
+ }
+
+ public static String undo() throws DatabaseException {
+
+ Session session = SimanticsInternal.getSession();
+
+ UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+
+ List<Operation> ops = support.undoAndReturnOperations(session, 1);
+ if(ops.isEmpty())
+ return "Undo history is empty.";
+
+ Operation mainOperation = ops.get(0);
+
+ long csId = mainOperation.getCSId();
+
+ ManagementSupport management = session.getService(ManagementSupport.class);
+ Collection<ChangeSetIdentifier> ids = management.getChangeSetIdentifiers(csId, csId);
+
+ return "Undo reverted " + ids.size() + " change sets.";
+
+ }
+
+ public static String undoOperations(int amountOfOperations) throws DatabaseException {
+
+ Session session = SimanticsInternal.getSession();
+
+ UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+
+ List<Operation> ops = support.undoAndReturnOperations(session, amountOfOperations);
+ if(ops.isEmpty())
+ return "Undo history is empty.";
+
+ Operation mainOperation = ops.get(0);
+
+ long csId = mainOperation.getCSId();
+
+ ManagementSupport management = session.getService(ManagementSupport.class);
+ Collection<ChangeSetIdentifier> ids = management.getChangeSetIdentifiers(csId, csId);
+
+ return "Undo reverted " + ids.size() + " change sets.";
+
+ }
+
+ public static String redo() throws DatabaseException {
+
+ Session session = SimanticsInternal.getSession();
+
+ UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+
+ List<Operation> ops = support.redo(session, 1);
+ if(ops.isEmpty())
+ return "Redo history is empty.";
+
+ Operation mainOperation = ops.get(0);
+
+ long csId = mainOperation.getCSId();
+
+ ManagementSupport management = session.getService(ManagementSupport.class);
+ Collection<ChangeSetIdentifier> ids = management.getChangeSetIdentifiers(csId, csId);
+
+ return "Redo redid " + ids.size() + " change sets.";
+
+ }
+
+ public static String getComment(Session session, ChangeSetIdentifier id) {
+ byte[] data = id.getMetadata().get(CommentMetadata.class.getName());
+ if(data == null)
+ return "Undescribed operation.";
+ String comment = CommentMetadata.deserialise(session, data).toString().trim();
+ if(comment.isEmpty())
+ return "Undescribed operation.";
+ return comment;
+ }
+
+ /**
+ * This method adds CommentMetadata for write transaction. CommentMetadata is used e.g. in Undo view.
+ * @param graph
+ * graph handle
+ * @param string
+ * comment
+ * @throws ServiceException
+ */
+ public static void addCommentMetadata(WriteOnlyGraph graph, String string) throws ServiceException {
+ // Add a comment to metadata.
+ CommentMetadata cm = graph.getMetadata(CommentMetadata.class);
+ graph.addMetadata(cm.add(ObjectUtils.toString(string)));
+ }
+
+ //-------------------------------------------------------------------------
+
+ /**
+ * Copy the specified source resource into the specified container using the
+ * specified write transaction handle.
+ *
+ * @param graph write transaction handle
+ * @param targetContainer target container resource of the created copy. The
+ * exact logic of how the copy will be contained by the target
+ * container is up to the PasteHandler to decide
+ * @param source the source resource to copy
+ * @throws DatabaseException
+ * @since 1.8
+ */
+ public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, Resource source) throws DatabaseException {
+ return copyTo(graph, targetContainer, source, null, null, null);
+ }
+
+ public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, Resource source, PasteEventHandler handler) throws DatabaseException {
+ return copyTo(graph, targetContainer, source, handler, null, null);
+ }
+
+ public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, Resource source, PasteEventHandler handler, CopyHandler copyHandler, PasteHandler pasteHandler) throws DatabaseException {
+ if(copyHandler == null) copyHandler = graph.adapt(source, CopyHandler.class);
+ return copyTo(graph, targetContainer, handler, copyHandler, pasteHandler);
+ }
+
+ public static Collection<Resource> copyTo(WriteGraph graph, Resource targetContainer, PasteEventHandler handler, CopyHandler copyHandler, PasteHandler pasteHandler) throws DatabaseException {
+ SimanticsClipboardImpl clipboard = new SimanticsClipboardImpl();
+ copyHandler.copyToClipboard(graph, clipboard);
+ if(targetContainer != null) {
+ if(pasteHandler == null) pasteHandler = graph.adapt(targetContainer, PasteHandler.class);
+ return pasteHandler.pasteFromClipboard(graph, clipboard, handler);
+ } else {
+ DefaultPasteHandler ph = new DefaultPasteHandler(null);
+ return ph.pasteFromClipboard(graph, clipboard, handler);
+ }
+ }
+
+ public static CopyHandler2 getPossibleCopyHandler(ReadGraph graph, Collection<Resource> rs) throws DatabaseException {
+ CopyHandler2 ch = null;
+ for(Resource r : rs) {
+ if(ch == null) {
+ CopyHandler ch2_ = graph.adapt(r, CopyHandler.class);
+ if(ch2_ instanceof CopyHandler2) {
+ ch = (CopyHandler2)ch2_;
+ }
+ } else {
+ CopyHandler ch2_ = graph.adapt(r, CopyHandler.class);
+ if(ch2_ instanceof CopyHandler2) {
+ CopyHandler2 ch2 = (CopyHandler2)ch2_;
+ ch = ch.combine(ch2);
+ }
+ }
+ }
+ return ch;
+ }
+
+ public static ClusterCollectorPolicy setClusterCollectorPolicy(ClusterCollectorPolicy policy) {
+ Session session = SimanticsInternal.getSession();
+ ClusterControl cc = session.getService(ClusterControl.class);
+ return cc.setPolicy(policy);
+ }
+
+ private static String decodeType(ReadGraph graph, Variable variable) throws DatabaseException {
+ Datatype dt = getDatatype(graph, variable);
+ return dt.toSingleLineString();
+ }
+
+ private static boolean isAsserted(ReadGraph graph, Resource subject, Resource predicate) throws DatabaseException {
+ Statement stm = graph.getPossibleStatement(subject, predicate);
+ return stm != null && stm.isAsserted(subject);
+ }
+
+ public static void setExpression(WriteGraph graph, Variable context, String text, Resource expressionValueType) throws DatabaseException {
+
+ Resource value = context.getRepresents(graph);
+ Resource predicateResource = context.getPredicateResource(graph);
+ Variable parent = context.getParent(graph);
+ Resource parentResource = parent.getRepresents(graph);
+ setExpression(graph, parentResource, predicateResource, value, text, expressionValueType);
+
+ }
+
+ public static void setExpression(WriteGraph graph, Resource parentResource, Resource predicateResource, Resource value, String text, Resource expressionValueType) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ boolean hasExpression = graph.isInstanceOf(value, expressionValueType);
+ String t = getSCLTypeString(graph, predicateResource, value);
+ String expression = text.substring(1).trim();
+ if(isAsserted(graph, parentResource, predicateResource)) {
+ Resource newValue = graph.newResource();
+ graph.claim(newValue, L0.InstanceOf, expressionValueType);
+ graph.claimLiteral(newValue, L0.HasValueType, t, Bindings.STRING);
+ graph.claimLiteral(newValue, L0.SCLValue_expression, expression, Bindings.STRING);
+ graph.claim(parentResource, predicateResource, newValue);
+ } else {
+ if(hasExpression) {
+ graph.claimLiteral(value, L0.SCLValue_expression, expression, Bindings.STRING);
+ } else {
+ Resource newValue = graph.newResource();
+ graph.claim(newValue, L0.InstanceOf, expressionValueType);
+ graph.claimLiteral(newValue, L0.HasValueType, t, Bindings.STRING);
+ graph.claimLiteral(newValue, L0.SCLValue_expression, expression, Bindings.STRING);
+ graph.deny(parentResource, predicateResource);
+ graph.claim(parentResource, predicateResource, newValue);
+ }
+ }
+
+ }
+
+ public static void clearExpression(WriteGraph graph, Variable property, Resource expressionValueType) throws DatabaseException {
+
+ Resource object = property.getPossibleRepresents(graph);
+ if(object != null) {
+ boolean hasExpression = graph.isInstanceOf(object, expressionValueType);
+ if(hasExpression) {
+ // There was an expression and now we go back to a value
+ Resource subject = property.getParent(graph).getPossibleRepresents(graph);
+ if(subject != null) {
+ Resource predicate = property.getPossiblePredicateResource(graph);
+ if(predicate != null) {
+ graph.deny(subject, predicate, object);
+ RemoverUtil.remove(graph, object);
+ }
+ }
+ }
+ }
+
+ }
+
+ public static boolean setOrClearExpression(WriteGraph graph, Variable property, String text, Resource expressionValueType) throws DatabaseException {
+
+ if(text.startsWith("=")) {
+ setExpression(graph, property, text, expressionValueType);
+ return true;
+ }
+
+ clearExpression(graph, property, expressionValueType);
+
+ return false;
+
+ }
+
+ public static void setValueAsString(WriteGraph graph, Variable property, String text, Resource expressionValueType) throws DatabaseException {
+
+ try {
+
+ if (setOrClearExpression(graph, property, text, expressionValueType))
+ return;
+
+ Object value = text;
+ Datatype type = property.getPossibleDatatype(graph);
+ if (type != null) {
+
+ Binding binding = Bindings.getBinding(type);
+
+ if (binding instanceof StringBinding) {
+
+ if (binding instanceof MutableStringBinding)
+ value = new MutableString(text);
+ else
+ value = text;
+
+ } else {
+
+ if (binding instanceof NumberBinding) {
+ text = text.replace(",", ".");
+ }
+
+ value = binding.parseValue(text, new DataValueRepository());
+
+ }
+
+ property.setValue(graph, value, binding);
+
+ } else {
+
+ property.setValue(graph, value);
+
+ }
+
+ // Add a comment to metadata.
+ CommentMetadata cm = graph.getMetadata(CommentMetadata.class);
+ graph.addMetadata(cm.add("Set value " + ObjectUtils.toString(value)));
+
+ } catch (DataTypeSyntaxError e) {
+ throw new DatabaseException(e);
+ } catch (BindingException e) {
+ throw new DatabaseException(e);
+ }
+
+ }
+
+
+ public static String queryDebugSupport(String query) {
+ Session session = SimanticsInternal.getSession();
+ DebugSupport ds = session.getService(DebugSupport.class);
+ return ds.query(session, "exec " + query);
+ }
+
+ public static String queryListSupport (String query) {
+ Session session = SimanticsInternal.getSession();
+ DebugSupport ds = session.getService(DebugSupport.class);
+ return ds.query(session, "list " + query);
+ }
+
+ final public static Function1<Resource,Resource> resourceCluster = new FunctionImpl1<Resource, Resource>() {
+ @Override
+ public Resource apply(Resource p0) {
+ return p0;
+ }
+ };
+
+ public static void sort(ReadGraph graph, List<Resource> collection) {
+ CollectionSupport cos = graph.getService(CollectionSupport.class);
+ cos.sort(collection);
+ }
+
+ public static List<Resource> sortByCluster(ReadGraph graph, Collection<Resource> collection) {
+ CollectionSupport cos = graph.getService(CollectionSupport.class);
+ return cos.asSortedList(collection);
+ }
+
+ public static List<Object> sortByCluster(final ReadGraph graph, List<Object> list, final Function1<Object,Resource> fn) {
+ final ClusteringSupport cs = graph.getService(ClusteringSupport.class);
+ ArrayList<Object> result = new ArrayList<Object>(list);
+ Collections.sort(result, new Comparator<Object>() {
+
+ @Override
+ public int compare(Object o1, Object o2) {
+ Resource r1 = fn.apply(o1);
+ Resource r2 = fn.apply(o2);
+ long l1 = cs.getCluster(r1);
+ long l2 = cs.getCluster(r2);
+ if(l1 < l2) return -1;
+ else if (l1 > l2) return 1;
+ else return 0;
+ }
+
+ });
+ return result;
+ }
+
+ public static <T> List<T> sortByClusterT(final ReadGraph graph, Collection<T> list, final Function1<T,Resource> fn) {
+ final ClusteringSupport cs = graph.getService(ClusteringSupport.class);
+ ArrayList<T> result = new ArrayList<T>(list);
+ Collections.sort(result, new Comparator<Object>() {
+
+ @Override
+ public int compare(Object o1, Object o2) {
+ Resource r1 = fn.apply((T)o1);
+ Resource r2 = fn.apply((T)o2);
+ long l1 = cs.getCluster(r1);
+ long l2 = cs.getCluster(r2);
+ if(l1 < l2) return -1;
+ else if (l1 > l2) return 1;
+ else return 0;
+ }
+
+ });
+ return result;
+ }
+
+ public static void makeSynchronous(ReadGraph graph, boolean value) throws DatabaseException {
+ graph.setSynchronous(value);
+ }
+
+ public static Set<Resource> listIndexRoots(ReadGraph graph) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+
+ Set<Resource> indexRoots = new TreeSet<Resource>();
+ indexRoots.addAll(Layer0Utils.listOntologies(graph));
+ indexRoots.addAll(graph.syncRequest(new ObjectsWithType(SimanticsInternal.getProject(), L0.ConsistsOf, L0.IndexRoot)));
+ return indexRoots;
+
+ }
+
+ public static List<Resource> listOntologies(ReadGraph graph) throws DatabaseException {
+ return graph.syncRequest(new OntologiesFromLibrary(graph.getRootLibrary()));
+ }
+
+ public static List<Resource> listGlobalOntologies(ReadGraph graph) throws DatabaseException {
+ return graph.syncRequest(new GlobalOntologies(graph.getRootLibrary()));
+ }
+
+ public static <T> T applySCL(String module, String function, ReadGraph graph, Object ... args) throws DatabaseException {
+
+ try {
+ SCL_GRAPH.set(graph);
+ T t = (T)((Function)SCLOsgi.MODULE_REPOSITORY.getValue(module + "/" + function)).applyArray(args);
+ SCL_GRAPH.set(null);
+ return t;
+ } catch (Throwable t) {
+ throw new DatabaseException(t);
+ }
+
+ }
+
+ public static boolean isContainerPublished(ReadGraph graph, Variable variable) throws DatabaseException {
+
+ Resource indexRoot = graph.syncRequest(new PossibleVariableIndexRoot(variable));
+ if(indexRoot == null) return false;
+ if(variable.equals(indexRoot)) return false;
+ return isPublished(graph, indexRoot);
+
+ }
+
+ public static boolean isContainerPublished(ReadGraph graph, Resource resource) throws DatabaseException {
+
+ Resource indexRoot = graph.syncRequest(new PossibleIndexRoot(resource));
+ if(indexRoot == null) return false;
+ if(resource.equals(indexRoot)) return false;
+ return isPublished(graph, indexRoot);
+
+ }
+
+ public static boolean isPublished(ReadGraph graph, Resource resource) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ Boolean value = graph.getPossibleRelatedValue(resource, L0.Entity_published, Bindings.BOOLEAN);
+ if(value != null && value) return true;
+
+ // This is safety - root should not be published it child is not
+ Resource root = graph.syncRequest(new PossibleIndexRoot(resource));
+ if(root != null) {
+ value = graph.getPossibleRelatedValue(root, L0.Entity_published, Bindings.BOOLEAN);
+ if(value != null && value) return true;
+ }
+
+ return false;
+
+ }
+
+ private static TransferableGraph1 makeTG(ReadGraph graph, Resource r) throws DatabaseException {
+
+ SimanticsClipboardImpl cp = new SimanticsClipboardImpl();
+ CopyHandler c1 = graph.adapt(r, CopyHandler.class);
+ c1.copyToClipboard(graph, cp);
+ Collection<Set<Representation>> reps = cp.getContents();
+ if(reps.size() != 1) return null;
+ return ClipboardUtils.accept(graph, reps.iterator().next(), SimanticsKeys.KEY_TRANSFERABLE_GRAPH);
+
+ }
+
+ public static TransferableGraphSource makeTGSource(ReadGraph graph, Resource r) throws DatabaseException {
+
+ SimanticsClipboardImpl cp = new SimanticsClipboardImpl();
+ CopyHandler c1 = graph.adapt(r, CopyHandler.class);
+ c1.copyToClipboard(graph, cp);
+ Collection<Set<Representation>> reps = cp.getContents();
+ if(reps.size() != 1) return null;
+ return ClipboardUtils.accept(graph, reps.iterator().next(), SimanticsKeys.KEY_TRANSFERABLE_GRAPH_SOURCE);
+
+ }
+
+ /*
+ * Modifies target to resemble source.
+ */
+ public static boolean merge(WriteGraph graph, Resource source, Resource target) throws DatabaseException {
+
+ TransferableGraphSource tgs1 = makeTGSource(graph, target);
+ TransferableGraph1 tg1 = TransferableGraphs.create(graph, tgs1);
+ TransferableGraph1 tg2 = makeTG(graph, source);
+
+ GraphRefactoringUtils.fixIncorrectRoot(tg1.identities);
+ GraphRefactoringUtils.fixIncorrectRoot(tg2.identities);
+
+ ModelTransferableGraphSource mtgs = (ModelTransferableGraphSource)tgs1;
+
+ Diff diff = new Diff(tg1, tg2);
+ TransferableGraphDelta1 delta = diff.diff();
+
+ long[] oldResources = mtgs.getResourceArray(graph);
+ if(TransferableGraphs.hasChanges(graph, oldResources, delta)) {
+ TransferableGraphs.applyDelta(graph, mtgs.getResourceArray(graph), delta);
+ return true;
+ } else {
+ return false;
+ }
+
+ }
+
+ public static Resource inferLiteralTypeFromString(ReadGraph graph, String text) {
+ return Layer0.getInstance(graph).String;
+ }
+
+ public static void emptyTrashBin() throws ServiceException {
+ emptyTrashBin(new NullProgressMonitor());
+ }
+
+ public static void emptyTrashBin(IProgressMonitor monitor) throws ServiceException {
+ emptyTrashBin(monitor, SimanticsInternal.getSession(), SimanticsInternal.getProject());
+ }
+
+ public static void emptyTrashBin(final IProgressMonitor monitor, Session session, final Resource project) throws ServiceException {
+ final SubMonitor mon = SubMonitor.convert(monitor, "Emptying Trash Bin...", 10000);
+ try {
+ session.syncRequest(new DelayedWriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ Layer0Utils.setDependenciesIndexingDisabled(graph, true);
+ Layer0 L0 = Layer0.getInstance(graph);
+ Layer0X L0X = Layer0X.getInstance(graph);
+ Resource parent = graph.getSingleObject(project, L0.PartOf);
+ Resource trashBin = Layer0Utils.getPossibleChild(graph, parent, "TrashBin");
+ Collection<Resource> trashes = trashBin != null
+ ? graph.getObjects(trashBin, L0.ConsistsOf)
+ : Collections.<Resource>emptyList();
+ if (trashes.isEmpty())
+ throw new CancelTransactionException();
+ mon.setWorkRemaining((2 + trashes.size()) * 1000);
+ for(Resource trash : trashes) {
+ if (mon.isCanceled())
+ throw new CancelTransactionException();
+ mon.subTask(NameUtils.getSafeName(graph, trash));
+ TGRemover remo = new TGRemover(mon.newChild(1000, SubMonitor.SUPPRESS_ALL_LABELS), trash);
+ remo.remove(graph);
+ if(graph.isInstanceOf(trash, L0.IndexRoot)) {
+ // TODO: this should be an utility
+ GenericRelationIndex index = graph.adapt(L0X.DependenciesRelation, GenericRelationIndex.class);
+ IndexedRelations ir = graph.getService(IndexedRelations.class);
+ // Deletes index files
+ ir.reset(null, graph, L0X.DependenciesRelation, trash);
+ // Notifies DB listeners
+ index.reset(graph, trash);
+ }
+ }
+ if (mon.isCanceled())
+ throw new CancelTransactionException();
+ mon.subTask("Committing Changes");
+ mon.newChild(1000);
+ }
+ });
+ if (mon.isCanceled())
+ return;
+ mon.subTask("Purging Database");
+ mon.newChild(1000);
+ purgeDatabase(monitor, session);
+ } catch (CancelTransactionException e) {
+ // Ignore.
+ } catch (DatabaseException e) {
+ throw new ServiceException(e);
+ }
+ }
+
+ public static void purgeDatabase() throws ServiceException {
+ purgeDatabase(new NullProgressMonitor());
+ }
+
+ public static void purgeDatabase(final IProgressMonitor monitor) throws ServiceException {
+ purgeDatabase(monitor, SimanticsInternal.getSession());
+ }
+
+ public static void purgeDatabase(final IProgressMonitor monitor, Session session) throws ServiceException {
+ try {
+ XSupport xs = session.getService(XSupport.class);
+ xs.purge();
+ } catch (DatabaseException e) {
+ throw new ServiceException(e);
+ }
+ }
+
+ public static Resource getSingleDomainOf(ReadGraph graph, Resource type, Resource target) throws DatabaseException {
+ Resource result = null;
+ for(Resource candidate : getDomainOf(graph, type).values()) {
+ if(graph.isInstanceOf(candidate, target)) {
+ if(result != null) throw new DatabaseException("Multiple relations found for target " + graph.getURI(target) + " in type " + graph.getURI(type));
+ else result = candidate;
+ }
+ }
+ if(result == null) throw new DatabaseException("Multiple relations found for target " + graph.getURI(target) + " in type " + graph.getURI(type));
+ return result;
+ }
+
+ public static Map<String, Resource> getDomainOf(ReadGraph graph, Resource type) throws DatabaseException {
+ CollectionSupport cs = graph.getService(CollectionSupport.class);
+ Map<String, Resource> result = cs.createObjectResourceMap(String.class);
+ Layer0 L0 = Layer0.getInstance(graph);
+ for(Resource r : graph.getObjects(type, L0.DomainOf)) {
+ String name = graph.getPossibleRelatedValue(r, L0.HasName, Bindings.STRING);
+ if(name != null) result.put(name, r);
+ }
+ for(Resource t : graph.getSupertypes(type)) {
+ for(Resource r : graph.getObjects(t, L0.DomainOf)) {
+ String name = graph.getPossibleRelatedValue(r, L0.HasName, Bindings.STRING);
+ if(name != null) result.put(name, r);
+ }
+ }
+ return result;
+ }
+
+ public static Resource getPossiblePredicateByNameFromType(ReadGraph graph, Resource type, String name) throws DatabaseException {
+ Map<String,Resource> domain = getDomainOf(graph, type);
+ return domain.get(name);
+ }
+
+ public static Resource getPossiblePredicateByName(ReadGraph graph, Resource instance, String predicateName) throws DatabaseException {
+ for(Resource type : graph.getPrincipalTypes(instance)) {
+ Map<String, Resource> domainOf = getDomainOf(graph, type);
+ Resource predicate = domainOf.get(predicateName);
+ if(predicate != null) return predicate;
+ }
+ return null;
+ }
+
+ public static Resource getPossiblePredicateByLabel(ReadGraph graph, Resource instance, String predicateName) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(graph);
+ for(Resource type : graph.getPrincipalTypes(instance)) {
+ Map<String, Resource> domainOf = getDomainOf(graph, type);
+ for(Resource r : domainOf.values()) {
+ String label = graph.getPossibleRelatedValue(r, L0.HasLabel, Bindings.STRING);
+ if(predicateName.equals(label))
+ return r;
+ }
+ }
+ return null;
+ }
+
+ public static void claimLiteralDataboard(WriteGraph graph, Resource container, Resource property, String valueText) throws DatabaseException {
+
+ try {
+ PropertyInfo pi = graph.syncRequest(new PropertyInfoRequest(property));
+ if(pi.literalRange == null) throw new DatabaseException("No suitable literal type defined as range for property.");
+ if(pi.defaultBinding == null) throw new DatabaseException("No suitable default binding for property.");
+ Object value = pi.defaultBinding.parseValue(valueText, new DataValueRepository());
+ graph.claimLiteral(container, property, pi.literalRange, value, pi.defaultBinding);
+ } catch (DataTypeSyntaxError e) {
+ throw new DatabaseException(e);
+ } catch (BindingException e) {
+ throw new DatabaseException(e);
+ }
+
+ }
+
+ public static String prettyPrintResource(ReadGraph graph, Resource resource, boolean ignoreIdentifiers) throws Exception {
+ TransferableGraphSource source = makeTGSource(graph, resource);
+ TransferableGraph1 tg = TransferableGraphs.create(graph, source);
+ GraphRefactoringUtils.fixOntologyExport(tg);
+ System.out.println("Printing resoure " + graph.getURI(resource));
+ return PrettyPrintTG.print(tg, ignoreIdentifiers);
+ }
+
+ /**
+ * Adds a random {@link GUID} as a value for <code>L0.identifier</code>
+ *
+ * @param graph
+ * @param component
+ * for which the identifier is added
+ * @param add
+ * <code>true</code> to invoke addLiteral, <code>false</code> to
+ * invoke claimLiteral
+ * @throws DatabaseException
+ */
+ public static void claimNewIdentifier(WriteGraph graph, Resource component, boolean add) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(graph);
+ GUID guid = GUID.random();
+ if (add)
+ graph.addLiteral(component, L0.identifier, L0.identifier_Inverse, L0.GUID, guid, GUID.BINDING);
+ else
+ graph.claimLiteral(component, L0.identifier, L0.identifier_Inverse, L0.GUID, guid, GUID.BINDING);
+ }
+
+ /**
+ * Sets a new random unique identifier for the specified entity if it already
+ * has an identifier. If the entity does not have a previous identifier, nothing
+ * is done.
+ *
+ * @param graph
+ * @param entity
+ * for which the identifier is added
+ * @return <code>true</code> if the identifier was renewed, <code>false</code>
+ * otherwise
+ * @throws DatabaseException
+ * @see {@link #claimNewIdentifier(WriteGraph, Resource, boolean)}
+ */
+ public static boolean renewIdentifier(WriteGraph graph, Resource entity) throws DatabaseException {
+ Layer0 L0 = Layer0.getInstance(graph);
+ Statement stm = graph.getPossibleStatement(entity, L0.identifier);
+ if (stm != null) {
+ graph.claimValue(stm.getObject(), GUID.random(), GUID.BINDING);
+ return true;
+ }
+ return false;
+ }
+
+ public static void addMetadataListener(ChangeListener listener) {
+ SimanticsInternal.getSession().getService(GraphChangeListenerSupport.class).addMetadataListener(listener);
+ }
+
+ public static void removeMetadataListener(ChangeListener listener) {
+ SimanticsInternal.getSession().getService(GraphChangeListenerSupport.class).removeMetadataListener(listener);
+ }
+
+}