bundles/org.simantics.document.server/src/org/simantics/document/server/request/ServerSCLValueRequestBase.java

   1 package org.simantics.document.server.request;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.common.request.IndexRoot;
   6 import org.simantics.db.common.request.PossibleTypedParent;
   7 import org.simantics.db.exception.DatabaseException;
   8 import org.simantics.db.layer0.scl.AbstractExpressionCompilationContext;
   9 import org.simantics.db.layer0.scl.AbstractExpressionCompilationRequest;
  10 import org.simantics.document.base.ontology.DocumentationResource;
  11 import org.simantics.structural2.scl.FindPossibleComponentTypeRequest;
  12 import org.simantics.utils.datastructures.Pair;
  13
  14 abstract public class ServerSCLValueRequestBase<CompilationContext extends AbstractExpressionCompilationContext> extends AbstractExpressionCompilationRequest<CompilationContext, Object> {
  15
  16     static Pair<Resource,Resource> getComponentTypeAndRoot(ReadGraph graph, Resource component, Resource literal)  throws DatabaseException {
  17         if(component != null) {
  18             Resource type = graph.syncRequest(new FindPossibleComponentTypeRequest(component));
  19             if(type != null) {
  20                 Resource root = graph.syncRequest(new IndexRoot(type));
  21                 return Pair.make(type, root);
  22             } else {
  23                 Resource doc = graph.syncRequest(new PossibleTypedParent(component, DocumentationResource.getInstance(graph).Document));
  24                 if(doc != null) {
  25                     Resource componentType = graph.getSingleType(doc);
  26                     Resource root = graph.syncRequest(new IndexRoot(doc));
  27                     return Pair.make(componentType, root);
  28                 } else {
  29                     Resource root = graph.syncRequest(new IndexRoot(component));
  30                     return Pair.make(null, root);
  31                 }
  32             }
  33             // TODO: For Antti to consider and fix later
  34             // Introduced to handle procedural user components where component == null
  35         } else if (literal != null) {
  36             Resource root = graph.syncRequest(new IndexRoot(literal));
  37             return Pair.make(null, root);
  38         } else {
  39             throw new DatabaseException("Couldn't resolve component type and root for component == null && literal == null");
  40         }
  41     }
  42
  43 }