Replaceable Defined Component Types

[simantics/platform.git] / bundles / org.simantics.structural2 / src / org / simantics / structural2 / DefinedUCInterfaceMap.java

diff --git a/bundles/org.simantics.structural2/src/org/simantics/structural2/DefinedUCInterfaceMap.java b/bundles/org.simantics.structural2/src/org/simantics/structural2/DefinedUCInterfaceMap.java
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+++ b/bundles/org.simantics.structural2/src/org/simantics/structural2/DefinedUCInterfaceMap.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 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.structural2;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+import org.simantics.db.common.request.ObjectsWithType;
+import org.simantics.db.common.request.ResourceRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+import org.simantics.structural.stubs.StructuralResource2;
+import org.simantics.structural2.Functions.InterfaceResolution;
+
+public class DefinedUCInterfaceMap extends ResourceRead<Collection<InterfaceResolution>> {
+
+    public DefinedUCInterfaceMap(Resource resource) {
+        super(resource);
+    }
+
+    @Override
+    public Collection<InterfaceResolution> perform(ReadGraph graph)
+            throws DatabaseException {
+
+        StructuralResource2 STR = StructuralResource2.getInstance(graph);
+        Resource definition = graph.getPossibleObject(resource, STR.IsDefinedBy);
+        if(definition != null) {
+            Collection<InterfaceResolution> result = new ArrayList<>();
+            Layer0 L0 = Layer0.getInstance(graph);
+            for(Resource cp : graph.syncRequest(new ObjectsWithType(resource, L0.ConsistsOf, STR.ConnectionRelation))) {
+                String cpName = graph.getRelatedValue(cp, L0.HasName, Bindings.STRING);
+                for(Resource conn : graph.getObjects(cp, STR.IsBoundBy)) {
+                    Statement stm = graph.getPossibleStatement(conn, STR.Connects);
+                    if(stm == null) continue;
+                    Resource component = stm.getObject();
+                    String componentName = graph.getRelatedValue(component, L0.HasName, Bindings.STRING);
+                    result.add(new InterfaceResolution(cp, cpName, componentName, graph.getInverse(stm.getPredicate())));
+                }
+            }
+            return result;
+        }
+        return null;
+    }
+
+}
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