bundles/org.simantics.modeling/src/org/simantics/modeling/utils/HeadlessComponentTypePropertiesResultRequest.java

   1 package org.simantics.modeling.utils;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collections;
   5 import java.util.List;
   6
   7 import org.simantics.databoard.Bindings;
   8 import org.simantics.databoard.binding.Binding;
   9 import org.simantics.databoard.binding.error.BindingException;
  10 import org.simantics.databoard.type.Datatype;
  11 import org.simantics.databoard.type.NumberType;
  12 import org.simantics.db.ReadGraph;
  13 import org.simantics.db.RequestProcessor;
  14 import org.simantics.db.Resource;
  15 import org.simantics.db.common.NamedResource;
  16 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
  17 import org.simantics.db.common.request.IsEnumeratedValue;
  18 import org.simantics.db.common.request.UniqueRead;
  19 import org.simantics.db.common.utils.CommonDBUtils;
  20 import org.simantics.db.common.utils.NameUtils;
  21 import org.simantics.db.exception.DatabaseException;
  22 import org.simantics.db.layer0.request.PropertyInfo;
  23 import org.simantics.db.layer0.request.PropertyInfoRequest;
  24 import org.simantics.db.layer0.util.Layer0Utils;
  25 import org.simantics.db.layer0.variable.StandardGraphChildVariable;
  26 import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;
  27 import org.simantics.db.layer0.variable.Variable;
  28 import org.simantics.layer0.Layer0;
  29 import org.simantics.modeling.scl.CompileProceduralSCLMonitorRequest;
  30 import org.simantics.modeling.scl.CompileSCLMonitorRequest;
  31 import org.simantics.operation.Layer0X;
  32 import org.simantics.scl.runtime.SCLContext;
  33 import org.simantics.scl.runtime.function.Function1;
  34 import org.simantics.structural.stubs.StructuralResource2;
  35 import org.simantics.utils.ui.ErrorLogger;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 public class HeadlessComponentTypePropertiesResultRequest extends UniqueRead<ComponentTypePropertiesResult> {
  40
  41     private static final Logger LOGGER = LoggerFactory.getLogger(HeadlessComponentTypePropertiesResultRequest.class);
  42
  43     protected final Resource componentType;
  44
  45     /**
  46      * @param componentTypeViewer
  47      */
  48     public HeadlessComponentTypePropertiesResultRequest(Resource componentType) {
  49         this.componentType = componentType;
  50     }
  51
  52     protected void readSectionSpecificData(ReadGraph graph, ComponentTypeViewerPropertyInfo info) throws DatabaseException {
  53     }
  54
  55     @Override
  56     public ComponentTypePropertiesResult perform(ReadGraph graph) throws DatabaseException {
  57         List<ComponentTypeViewerPropertyInfo> result = new ArrayList<>();
  58         List<NamedResource> connectionPoints = new ArrayList<>();
  59         Layer0 L0 = Layer0.getInstance(graph);
  60         Layer0X L0X = Layer0X.getInstance(graph);
  61         StructuralResource2 STR = StructuralResource2.getInstance(graph);
  62
  63         boolean typeIsImmutable = graph.isImmutable(componentType)
  64                 || graph.hasStatement(componentType, STR.ComponentType_Locked)
  65                 || Layer0Utils.isPublished(graph, componentType)
  66                 || Layer0Utils.isContainerPublished(graph, componentType);
  67
  68         for(Resource relation : graph.getObjects(componentType, L0.DomainOf)) {
  69             if(graph.isSubrelationOf(relation, L0.HasProperty)) {
  70                 String name = graph.getRelatedValue(relation, L0.HasName);
  71                 String type =  graph.getPossibleRelatedValue(relation, L0.RequiresValueType);
  72                 String label = graph.getPossibleRelatedValue(relation, L0.HasLabel);
  73                 if (label == null)
  74                     label = ""; //$NON-NLS-1$
  75                 String description = graph.getPossibleRelatedValue(relation, L0.HasDescription);
  76                 if (description == null)
  77                     description = ""; //$NON-NLS-1$
  78                 NumberType numberType = null;
  79                 if(type == null)
  80                     type = "Double"; //$NON-NLS-1$
  81                 String unit = graph.getPossibleRelatedValue(relation, L0X.HasUnit, Bindings.STRING);
  82                 String defaultValue = "0"; //$NON-NLS-1$
  83                 String expression = null;
  84
  85                 for(Resource assertion : graph.getAssertedObjects(componentType, relation)) {
  86                     try {
  87                         expression = graph.getPossibleRelatedValue(assertion, L0.SCLValue_expression, Bindings.STRING);
  88                         if(expression != null) {
  89                                 defaultValue = "=" + expression; //$NON-NLS-1$
  90                         } else if (graph.sync(new IsEnumeratedValue(assertion))) {
  91                             defaultValue = CommonDBUtils.getEnumerationValueName(graph, assertion);
  92                         } else {
  93                             Datatype dt = getPossibleDatatype(graph, assertion);
  94                             if (dt == null)
  95                                 continue;
  96                             if (dt instanceof NumberType)
  97                                 numberType = (NumberType) dt;
  98                             Binding binding = Bindings.getBinding(dt);
  99                             Object value = graph.getValue(assertion, binding);
 100                             try {
 101                                 defaultValue = binding.toString(value, true);
 102                             } catch (BindingException e) {
 103                                 ErrorLogger.defaultLogError(e);
 104                             }
 105                         }
 106                     } catch(DatabaseException e) {
 107                         ErrorLogger.defaultLogError(e);
 108                     }
 109                 }
 110
 111                 String valid = expression != null ? validateMonitorExpression(graph, componentType, relation, expression) : null;
 112
 113                 boolean immutable = typeIsImmutable || graph.isImmutable(relation);
 114                 ComponentTypeViewerPropertyInfo info =
 115                         new ComponentTypeViewerPropertyInfo(relation, name, type, defaultValue, numberType, unit, label, description, expression, valid, immutable);
 116
 117                 readSectionSpecificData(graph, info);
 118
 119                 result.add(info);
 120
 121             } else if (graph.isInstanceOf(relation, STR.ConnectionRelation)) {
 122                 NamedResource nr = new NamedResource(NameUtils.getSafeName(graph, relation), relation);
 123                 connectionPoints.add(nr);
 124             }
 125         }
 126         Collections.sort(result);
 127         return new ComponentTypePropertiesResult(result, connectionPoints, typeIsImmutable);
 128     }
 129
 130     private Datatype getPossibleDatatype(ReadGraph graph, Resource literal) throws DatabaseException {
 131         Binding binding = Bindings.getBindingUnchecked(Datatype.class);
 132         for (Resource dataTypeResource : graph.getObjects(literal, Layer0.getInstance(graph).HasDataType)) {
 133             Datatype dt = graph.getPossibleValue(dataTypeResource, binding);
 134             if (dt != null)
 135                 return dt;
 136         }
 137         return null;
 138     }
 139
 140     public static String validateMonitorExpression(final RequestProcessor processor, final Resource componentType, final Resource relation, final String expression) {
 141
 142         try {
 143             return processor.sync(new UniqueRead<String>() {
 144
 145                 @Override
 146                 public String perform(ReadGraph graph) throws DatabaseException {
 147
 148                     StructuralResource2 STR = StructuralResource2.getInstance(graph);
 149
 150                     // TODO: this is a bit hackish but should get the job done in most parts and
 151                     // importantly indicates something for the user
 152                     PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(relation), TransientCacheAsyncListener.<PropertyInfo>instance());
 153                     Variable parent = new StandardGraphChildVariable(null, null, componentType) {
 154
 155                         public Resource getType(ReadGraph graph) throws DatabaseException {
 156                             return componentType;
 157                         };
 158
 159                         public Variable getPossibleProperty(ReadGraph graph, String name) throws DatabaseException {
 160                             Variable prop = super.getPossibleProperty(graph, name);
 161                             if (prop != null) {
 162                                 return prop;
 163                             } else {
 164                                 return getChild(graph, name);
 165                             }
 166                         };
 167                     };
 168
 169                     for(Resource literal : graph.getAssertedObjects(componentType, relation)) {
 170
 171                         try {
 172                             Variable context = new StandardGraphPropertyVariable(parent, null, null, info, literal);
 173                             if(graph.isInstanceOf(componentType, STR.ProceduralComponentType)) {
 174                                 CompileProceduralSCLMonitorRequest.compileAndEvaluate(graph, context);
 175                             } else {
 176                                 compileAndEvaluate(graph, context, expression);
 177                             }
 178
 179                         } catch (Exception e) {
 180                             String msg = e.getMessage();
 181                             int index = msg.indexOf(":"); //$NON-NLS-1$
 182                             if(index > 0) msg = msg.substring(index);
 183                             return msg;
 184                         }
 185                     }
 186                     return null;
 187                 }
 188
 189             });
 190         } catch (DatabaseException e) {
 191             LOGGER.error("Could not validate ", e);
 192         }
 193         return null;
 194     }
 195
 196     public static void compileAndEvaluate(ReadGraph graph, Variable context, String expression) throws DatabaseException {
 197         SCLContext sclContext = SCLContext.getCurrent();
 198         Object oldGraph = sclContext.get("graph");
 199         try {
 200             CompileSCLMonitorRequest compileSCLMonitorRequest = new ValidationCompilationRequest(graph, context, expression);
 201             Function1<Variable,Object> exp = graph.syncRequest(compileSCLMonitorRequest);
 202             sclContext.put("graph", graph);
 203             //return exp.apply(context.getParent(graph));
 204         } catch (DatabaseException e) {
 205             throw (DatabaseException)e;
 206         } catch (Throwable t) {
 207             throw new DatabaseException(t);
 208         } finally {
 209             sclContext.put("graph", oldGraph);
 210         }
 211     }
 212
 213     private static final class ValidationCompilationRequest extends CompileSCLMonitorRequest {
 214         private final String expression;
 215
 216         private ValidationCompilationRequest(ReadGraph graph, Variable context, String expression)
 217                 throws DatabaseException {
 218             super(graph, context);
 219             this.expression = expression;
 220         }
 221
 222         @Override
 223         protected String getExpressionText(ReadGraph graph) throws DatabaseException {
 224             return expression;
 225         }
 226
 227         @Override
 228         public int hashCode() {
 229             return super.hashCode() + 37 * expression.hashCode();
 230         }
 231
 232         @Override
 233         public boolean equals(Object obj) {
 234             return super.equals(obj) && ((ValidationCompilationRequest)obj).expression.equals(expression);
 235         }
 236     }
 237
 238 }