server/request/DefaultFields.java

   1 package org.simantics.document.server.request;
   2
   3 import org.simantics.databoard.Bindings;
   4 import org.simantics.databoard.Databoard;
   5 import org.simantics.databoard.binding.Binding;
   6 import org.simantics.db.ReadGraph;
   7 import org.simantics.db.Resource;
   8 import org.simantics.db.exception.DatabaseException;
   9 import org.simantics.db.layer0.request.VariableRead;
  10 import org.simantics.db.layer0.variable.Variable;
  11 import org.simantics.document.base.ontology.DocumentationResource;
  12 import org.simantics.document.server.DocumentServerUtils;
  13 import org.simantics.document.server.JSONObject;
  14 import org.simantics.layer0.Layer0;
  15 import org.simantics.structural.stubs.StructuralResource2;
  16
  17 /**
  18  * @author Antti Villberg
  19  * @since 1.30.0
  20  */
  21 public class DefaultFields extends VariableRead<JSONObject> {
  22
  23     public DefaultFields(Variable variable) {
  24         super(variable);
  25     }
  26
  27     @Override
  28     public JSONObject perform(ReadGraph graph) throws DatabaseException {
  29
  30         Layer0 L0 = Layer0.getInstance(graph);
  31         StructuralResource2.getInstance(graph);
  32         DocumentationResource DOC = DocumentationResource.getInstance(graph);
  33
  34         String id = DocumentServerUtils.getId(graph, variable);
  35
  36         Binding jsonBinding = graph.getService(Databoard.class).getBindingUnchecked(JSONObject.class);
  37         JSONObject object = new JSONObject(jsonBinding, id);
  38
  39         Resource type = variable.getType(graph);
  40
  41         Variable parentConnectionPoint = DocumentServerUtils.getParentConnectionPoint(graph, variable);
  42         while (parentConnectionPoint != null) {
  43             Variable par = parentConnectionPoint.getParent(graph);
  44             if(!DOC.Components_DummyContainer.equals(par.getType(graph))) break;
  45             parentConnectionPoint = DocumentServerUtils.getParentConnectionPoint(graph, par);
  46         }
  47
  48         if(parentConnectionPoint != null) {
  49             String parent = DocumentServerUtils.getId(graph, parentConnectionPoint.getParent(graph));
  50             Resource cpPredicate = parentConnectionPoint.getPossiblePredicateResource(graph);
  51             String i = null;
  52             if (DOC.Relations_partN.equals(cpPredicate)) {
  53                 i = DocumentServerUtils.findManualOrdinal(graph, variable);
  54             } else {
  55                 i = graph.getPossibleRelatedValue(cpPredicate, DOC.Document_ChildRelation_ordinal, Bindings.STRING);
  56             }
  57             if (i == null) {
  58                 i = "0";
  59             }
  60
  61             object.addJSONField("parent", parent);
  62             object.addJSONField("parentOrd", i);
  63         } else {
  64             if(DOC.Components_Root.equals(type) || graph.isInheritedFrom(type, DOC.Components_Root)) {
  65                 object.addJSONField("parent", "root");
  66                 object.addJSONField("parentOrd", "0");
  67             } if(!graph.isInheritedFrom(type, DOC.Components_ParentlessComponent)) {
  68                 object.addJSONField("parent", "");
  69                 object.addJSONField("parentOrd", "0");
  70             }
  71         }
  72
  73         object.addJSONField("id", id);
  74         object.addJSONField("type", graph.<String>getRelatedValue(type, L0.HasName, Bindings.STRING));
  75         return object;
  76
  77     }
  78
  79 }