--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in 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.browsing.ui.graph.impl;\r
+\r
+import org.simantics.browsing.ui.content.Labeler.Modifier;\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.Datatypes;\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.Datatype;\r
+import org.simantics.databoard.type.NumberType;\r
+import org.simantics.databoard.units.IUnitConverter;\r
+import org.simantics.databoard.util.Range;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.UndoContext;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.request.ReadRequest;\r
+import org.simantics.db.common.request.WriteRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.util.PrimitiveValueParser;\r
+import org.simantics.db.layer0.variable.InputValidator;\r
+import org.simantics.db.layer0.variable.InputValidatorFactory;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.db.layer0.variable.VariableWrite;\r
+import org.simantics.db.layer0.variable.Variables;\r
+import org.simantics.scl.runtime.function.Function1;\r
+import org.simantics.utils.datastructures.Callback;\r
+import org.simantics.utils.format.FormattingUtils;\r
+import org.simantics.utils.ui.ErrorLogger;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class VariableModifier implements Modifier {\r
+\r
+ final protected Session session;\r
+ final protected UndoContext undoContext;\r
+ final protected Variable variable;\r
+ final protected String targetUnit;\r
+\r
+ private String initialValue;\r
+ protected Throwable modifierFailed;\r
+ private Datatype datatype;\r
+ protected Binding binding;\r
+ protected InputValidator variableInputValidator;\r
+\r
+ public VariableModifier(RequestProcessor processor, Variable variable) {\r
+ this(processor, variable, null);\r
+ }\r
+\r
+ public VariableModifier(RequestProcessor processor, Variable variable, String targetUnit) {\r
+ this.variable = variable;\r
+ this.session = processor.getSession();\r
+ this.undoContext = null;\r
+ this.targetUnit = targetUnit;\r
+\r
+ initializeModifier(processor);\r
+ }\r
+\r
+ public VariableModifier(RequestProcessor processor, UndoContext undoContext, Variable variable, String targetUnit) {\r
+ this.variable = variable;\r
+ this.undoContext = undoContext;\r
+ this.session = processor.getSession();\r
+ this.targetUnit = targetUnit;\r
+\r
+ initializeModifier(processor);\r
+ }\r
+\r
+ protected void initializeModifier(RequestProcessor processor) {\r
+ try {\r
+ processor.syncRequest(new ReadRequest() {\r
+ @Override\r
+ public void run(ReadGraph graph) throws DatabaseException {\r
+ String expression = variable.getPossiblePropertyValue(graph, Variables.EXPRESSION);\r
+ if(expression == null) {\r
+ datatype = variable.getPossibleDatatype(graph);\r
+ if (datatype == null) {\r
+ // Deprecated.\r
+ // This is here for some backwards compatibility.\r
+ datatype = variable.getInterface(graph, Datatype.class);\r
+ if (datatype == null)\r
+ throw new org.simantics.db.exception.BindingException("no datatype for variable " + variable, null);\r
+ }\r
+ initialValue = getInitialValue(graph, datatype);\r
+ binding = Bindings.getBinding(datatype);\r
+ initializeValidator(graph, variable);\r
+ }\r
+ else {\r
+ initialValue = "= " + expression;\r
+ binding = Bindings.STRING;\r
+ datatype = Datatypes.STRING;\r
+ }\r
+ }\r
+ });\r
+ } catch (DatabaseException e) {\r
+ ErrorLogger.defaultLogError("Modifier initialization failed, see exception for details.", e);\r
+ modifierFailed = e;\r
+ }\r
+ }\r
+\r
+ protected void initializeValidator(ReadGraph graph, Variable var) throws DatabaseException {\r
+ //System.out.println(var.getURI(graph));\r
+\r
+ Resource resource = var.getPossibleRepresents(graph);\r
+// if (resource != null)\r
+// System.out.println("represents: " + graph.getPossibleURI(resource));\r
+\r
+ Resource pr = variable.getPossiblePredicateResource(graph);\r
+ \r
+// Variable predicate = variable.getPossiblePropertyValue(graph, Variables.PREDICATE);\r
+// if (predicate != null) {\r
+// Resource pr = predicate.getPropertyValue(graph, Variables.REPRESENTS);\r
+ if (pr != null)\r
+ variableInputValidator = tryInputValidatorFactory(graph, var, resource, pr);\r
+// }\r
+\r
+ if (variableInputValidator == null) {\r
+ final Function1<String, String> validator = variable.getPossiblePropertyValue(graph, Variables.INPUT_VALIDATOR);\r
+ if (validator != null)\r
+ variableInputValidator = new InputValidator() {\r
+ \r
+ @Override\r
+ public String isValid(Object newValue) {\r
+ return validator.apply((String)newValue);\r
+ }\r
+ };\r
+ }\r
+\r
+ if (variableInputValidator == null) {\r
+ Variable parent = variable.getParent(graph);\r
+ if (parent != null) {\r
+ Resource parentResource = parent.getPossibleRepresents(graph);\r
+ if (parentResource != null)\r
+ variableInputValidator = tryInputValidatorFactory(graph, var, resource, parentResource);\r
+ }\r
+ }\r
+\r
+ if (variableInputValidator == null)\r
+ variableInputValidator = var.getInterface(graph, InputValidator.class);\r
+ \r
+ }\r
+\r
+ private InputValidator tryInputValidatorFactory(ReadGraph graph, Variable var, Resource varRepresents, Resource r) throws DatabaseException {\r
+ //System.out.println("tryInputValidatorFactory(" + var.getURI(graph) + ", " + NameUtils.getSafeName(graph, varRepresents) + ", " + NameUtils.getSafeName(graph, r) + ")");\r
+ InputValidatorFactory validatorFactory = graph.getPossibleAdapter(r, InputValidatorFactory.class);\r
+ if (validatorFactory == null)\r
+ return null;\r
+ //System.out.println("got validator factory: " + validatorFactory);\r
+ return validatorFactory.create(graph, var);\r
+ }\r
+\r
+ protected void doModify(final String label) {\r
+ if(label.startsWith("=")) {\r
+ session.asyncRequest(new WriteRequest() {\r
+ @Override\r
+ public void perform(WriteGraph graph) throws DatabaseException {\r
+ variable.setPropertyValue(graph, Variables.EXPRESSION, \r
+ label.substring(1).trim());\r
+ }\r
+ });\r
+ }\r
+ else {\r
+ if(initialValue.startsWith("="))\r
+ try {\r
+ session.syncRequest(new WriteRequest() {\r
+ @Override\r
+ public void perform(WriteGraph graph) throws DatabaseException {\r
+ variable.setPropertyValue(graph, Variables.EXPRESSION, null);\r
+ }\r
+ });\r
+ } catch (DatabaseException e) {\r
+ e.printStackTrace();\r
+ }\r
+ session.asyncRequest(new VariableWrite(variable, label, null, targetUnit), new Callback<DatabaseException>() {\r
+ @Override \r
+ public void run(DatabaseException parameter) {\r
+ if (parameter != null)\r
+ ErrorLogger.defaultLogError(parameter);\r
+ else\r
+ modifySuccessful();\r
+ }\r
+ });\r
+ }\r
+ }\r
+\r
+ protected void modifySuccessful() {\r
+ }\r
+\r
+ protected String getInitialValue(ReadGraph graph, Datatype dataType) throws DatabaseException {\r
+ // TODO: more generic support through DataValuePrinter\r
+ Object value = variable.getPossibleValue(graph);\r
+ if(value == null) return "";\r
+ String unit = Variables.getPossibleUnit(graph, variable);\r
+ //String unit = variable.getPossiblePropertyValue(graph, Variables.UNIT);\r
+ if(value instanceof Double && unit != null && targetUnit != null) {\r
+ IUnitConverter converter = VariableWrite.converter(unit, targetUnit);\r
+ value = converter.convert((Double)value);\r
+ }\r
+ return FormattingUtils.US.engineeringFormat(value);\r
+ }\r
+\r
+ @Override\r
+ public String getValue() {\r
+ return initialValue;\r
+ }\r
+\r
+ @Override\r
+ public String isValid(String label) {\r
+ if (label.startsWith("="))\r
+ return null;\r
+\r
+ if (modifierFailed != null)\r
+ return "Could not resolve validator for this value, modification denied. Reason: " + modifierFailed.getMessage();\r
+\r
+ if (variableInputValidator != null)\r
+ return variableInputValidator.isValid(label);\r
+\r
+ try {\r
+ if (binding instanceof StringBinding) {\r
+ // Use the binding to validate strings since they might have\r
+ // mime-types and/or patterns attached.\r
+ if (binding instanceof MutableStringBinding) {\r
+ binding.assertInstaceIsValid(new MutableString(label));\r
+ } else {\r
+ binding.assertInstaceIsValid(label);\r
+ }\r
+ } else {\r
+ if (binding instanceof NumberBinding) {\r
+ // Numbers are always parsed in US locale, although both ',' and\r
+ // '.' are accepted as decimal separators.\r
+ label = label.replace(",", ".");\r
+ //Object value = binding.parseValue(label, new DataValueRepository());\r
+ Object value = PrimitiveValueParser.parse(label, datatype);\r
+ NumberType numberType = (NumberType) datatype;\r
+ Range range = numberType.getRange();\r
+ if (range != null && !range.contains((Number) value))\r
+ return "Value is not in range " + range;\r
+ } else {\r
+ binding.parseValue(label, new DataValueRepository());\r
+ }\r
+ }\r
+ return null;\r
+ } catch (IllegalArgumentException e) {\r
+ // Parsing failed.\r
+ return e.getLocalizedMessage();\r
+ } catch (DataTypeSyntaxError e) {\r
+ // Failed to parse label with binding\r
+ return e.getLocalizedMessage();\r
+ } catch (BindingException e) {\r
+ return e.getLocalizedMessage();\r
+ }\r
+ }\r
+\r
+ @Override\r
+ public final void modify(String label) {\r
+ if (modifierFailed != null)\r
+ // Should never end up here, isValid should prevent it.\r
+ throw new Error("modifier failed: " + modifierFailed.getMessage());\r
+ doModify(label);\r
+ }\r
+\r
+};\r
Code Review / simantics / platform.git / blobdiff