Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / profile / DiagramElementGroup.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/profile/DiagramElementGroup.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/profile/DiagramElementGroup.java
new file mode 100644 (file)
index 0000000..2f4b99d
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/profile/DiagramElementGroup.java
@@ -0,0 +1,67 @@
+/*******************************************************************************\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.diagram.profile;\r
+\r
+import java.util.Collection;\r
+import java.util.HashSet;\r
+import java.util.Set;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.primitiverequest.OrderedSet;\r
+import org.simantics.db.common.procedure.wrapper.SetListenerToSingleSetListener;\r
+import org.simantics.db.common.request.BinaryRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.procedure.SetListener;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.scenegraph.profile.Group;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public abstract class DiagramElementGroup implements Group {\r
+\r
+    protected DiagramResource DIA;\r
+\r
+    public DiagramElementGroup(ReadGraph graph) {\r
+        this.DIA = DiagramResource.getInstance(graph);\r
+    }\r
+\r
+    @Override\r
+    public void trackItems(RequestProcessor processor, final Resource runtimeDiagram, final SetListener<Resource> listener) {\r
+        processor.asyncRequest(new BinaryRead<Class<?>, Resource, Collection<Resource>>(getClass(), runtimeDiagram) {\r
+\r
+            @Override\r
+            public Set<Resource> perform(ReadGraph graph) throws DatabaseException {\r
+                HashSet<Resource> result = new HashSet<Resource>();\r
+\r
+                Resource realDiagram = graph.getPossibleObject(parameter2, DIA.RuntimeDiagram_HasConfiguration);\r
+                if (realDiagram == null)\r
+                    return result;\r
+\r
+                Collection<Resource> elements = graph.syncRequest(new OrderedSet(realDiagram));\r
+                for (Resource element : elements) {\r
+                    if (test(graph, element)) {\r
+                        result.add(element);\r
+                    }\r
+                }\r
+\r
+                return result;\r
+            }\r
+\r
+        }, new SetListenerToSingleSetListener<Resource>(listener));\r
+    }\r
+\r
+    protected abstract boolean test(ReadGraph graph, Resource element) throws DatabaseException;\r
+\r
+}\r