Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.modeling / src / org / simantics / modeling / typicals / rules / InstanceOfRule.java

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/typicals/rules/InstanceOfRule.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/typicals/rules/InstanceOfRule.java
new file mode 100644 (file)
index 0000000..da89326
--- /dev/null
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/typicals/rules/InstanceOfRule.java
@@ -0,0 +1,62 @@
+/*******************************************************************************\r
+ * Copyright (c) 2013 Association for Decentralized Information Management in\r
+ * 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
+ *     Semantum Oy - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.modeling.typicals.rules;\r
+\r
+import java.util.Collection;\r
+\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.utils.NameUtils;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.modeling.typicals.ITypicalSynchronizationRule;\r
+import org.simantics.modeling.typicals.TypicalInfo;\r
+\r
+/**\r
+ * Synchronizes L0.InstanceOf relations from template to instance.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public enum InstanceOfRule implements ITypicalSynchronizationRule {\r
+\r
+    INSTANCE;\r
+\r
+    public static InstanceOfRule getInstance() {\r
+        return INSTANCE;\r
+    }\r
+\r
+    @Override\r
+    public boolean synchronize(WriteGraph graph, Resource template, Resource instance, TypicalInfo info) throws DatabaseException {\r
+        boolean changed = false;\r
+        Layer0 L0 = Layer0.getInstance(graph);\r
+        Collection<Resource> templateInstanceOf = graph.getObjects(template, L0.InstanceOf);\r
+        Collection<Resource> instanceInstanceOf = graph.getObjects(instance, L0.InstanceOf);\r
+\r
+        for (Resource instanceOf : templateInstanceOf) {\r
+            if (!graph.hasStatement(instance, L0.InstanceOf, instanceOf)) {\r
+                graph.claim(instance, L0.InstanceOf, instanceOf);\r
+                info.messageLog.add("\t\t\tadd type  " + NameUtils.getSafeName(graph, instanceOf));\r
+                changed = true;\r
+            }\r
+        }\r
+        for (Resource instanceOf : instanceInstanceOf) {\r
+            if (!templateInstanceOf.contains(instanceOf) && graph.hasStatement(instance, L0.InstanceOf, instanceOf)) {\r
+                graph.deny(instance, L0.InstanceOf, instanceOf);\r
+                info.messageLog.add("\t\t\tremove type " + NameUtils.getSafeName(graph, instanceOf));\r
+                changed = true;\r
+            }\r
+        }\r
+\r
+        return changed;\r
+    }\r
+\r
+}\r