Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / synchronization / graph / PropertyModification.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/PropertyModification.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/PropertyModification.java
new file mode 100644 (file)
index 0000000..6bcf9fc
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/PropertyModification.java
@@ -0,0 +1,92 @@
+/*******************************************************************************\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.synchronization.graph;\r
+\r
+import java.util.Arrays;\r
+\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.CommentMetadata;\r
+import org.simantics.db.common.utils.NameUtils;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.diagram.synchronization.ModificationAdapter;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class PropertyModification extends ModificationAdapter {\r
+    private final Resource owner;\r
+    private final Resource relation;\r
+    private final Resource type;\r
+    private final Object value;\r
+    private final Binding binding;\r
+\r
+    public PropertyModification(Resource propertyOwner, Resource propertyRelation, Resource propertyType, Object value, Binding binding) {\r
+        super(LOW_PRIORITY);\r
+        this.owner = propertyOwner;\r
+        this.relation = propertyRelation;\r
+        this.type = propertyType;\r
+        this.value = value;\r
+        this.binding = binding;\r
+    }\r
+    \r
+       private final boolean arrayEquals(Object av1, Object av2) {\r
+               if (av2 == null)\r
+                       return false;\r
+               Class<?> c1 = av1.getClass().getComponentType();\r
+               Class<?> c2 = av2.getClass().getComponentType();\r
+               if (c2 == null || !c1.equals(c2))\r
+                       return false;\r
+               boolean p1 = c1.isPrimitive();\r
+               boolean p2 = c2.isPrimitive();\r
+               if (p1 != p2)\r
+                       return false;\r
+               if (!p1)\r
+                       return Arrays.equals((Object[]) av1, (Object[]) av2);\r
+               if (boolean.class.equals(c1))\r
+                       return Arrays.equals((boolean[]) av1, (boolean[]) av2);\r
+               else if (byte.class.equals(c1))\r
+                       return Arrays.equals((byte[]) av1, (byte[]) av2);\r
+               else if (int.class.equals(c1))\r
+                       return Arrays.equals((int[]) av1, (int[]) av2);\r
+               else if (long.class.equals(c1))\r
+                       return Arrays.equals((long[]) av1, (long[]) av2);\r
+               else if (float.class.equals(c1))\r
+                       return Arrays.equals((float[]) av1, (float[]) av2);\r
+               else if (double.class.equals(c1))\r
+                       return Arrays.equals((double[]) av1, (double[]) av2);\r
+               throw new RuntimeException("??? Contact application querySupport.");\r
+       }\r
+\r
+    private boolean sameValue(Object oldValue, Object newValue) {\r
+               if (newValue.getClass().isArray()) {\r
+                       return arrayEquals(newValue, oldValue);\r
+               } else {\r
+                       return newValue.equals(oldValue);\r
+               }\r
+    }\r
+\r
+    @Override\r
+    public void perform(WriteGraph g) throws DatabaseException {\r
+       \r
+       Object existing = g.getPossibleRelatedValue(owner, relation, binding);\r
+       if(!sameValue(existing, value)) {\r
+               g.markUndoPoint();\r
+            DiagramGraphUtil.setRelatedValue(g, owner, relation, type, value, binding);\r
+               // Add comment to change set.\r
+               CommentMetadata cm = g.getMetadata(CommentMetadata.class);\r
+               g.addMetadata(cm.add("Changed property " + NameUtils.getSafeName(g, relation)));\r
+       }\r
+\r
+    }\r
+}
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