Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scenegraph / testcases / org / simantics / scenegraph / tests / SceneGraphComparator.java

diff --git a/bundles/org.simantics.scenegraph/testcases/org/simantics/scenegraph/tests/SceneGraphComparator.java b/bundles/org.simantics.scenegraph/testcases/org/simantics/scenegraph/tests/SceneGraphComparator.java
new file mode 100644 (file)
index 0000000..859c419
--- /dev/null
+++ b/bundles/org.simantics.scenegraph/testcases/org/simantics/scenegraph/tests/SceneGraphComparator.java
@@ -0,0 +1,126 @@
+/*******************************************************************************\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.scenegraph.tests;\r
+\r
+import java.util.Collection;\r
+import java.util.HashMap;\r
+import java.util.HashSet;\r
+import java.util.Map;\r
+import java.util.Set;\r
+\r
+import org.simantics.scenegraph.INode;\r
+import org.simantics.scenegraph.ParentNode;\r
+import org.simantics.scenegraph.g2d.G2DParentNode;\r
+import org.simantics.scenegraph.g2d.G2DSceneGraph;\r
+import org.simantics.scenegraph.g2d.IG2DNode;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class SceneGraphComparator {\r
+\r
+    private Map<INode, INode> aChildrenDiffer = new HashMap<INode, INode>();\r
+    private Map<INode, INode> bChildrenDiffer = new HashMap<INode, INode>();\r
+    private Set<Pair<INode, INode>> different = new HashSet<Pair<INode, INode>>();\r
+\r
+    private INode a;\r
+    private INode b;\r
+\r
+    public SceneGraphComparator(INode a, INode b) {\r
+        this.a = a;\r
+        this.b = b;\r
+    }\r
+\r
+    public void analyze() {\r
+        analyze(a.getParent(), a, b.getParent(), b);\r
+    }\r
+\r
+    public boolean equal() {\r
+        return aChildrenDiffer.isEmpty() && bChildrenDiffer.isEmpty() && different.isEmpty();\r
+    }\r
+\r
+    private void analyze(ParentNode<?> pa, INode a, ParentNode<?> pb, INode b) {\r
+        if (a == b)\r
+            return;\r
+        if (!equals(a, b)) {\r
+            different.add(Pair.<INode, INode>make(a, b));\r
+            if (pa != null && pb != null) {\r
+                aChildrenDiffer.put(pa, pb);\r
+                bChildrenDiffer.put(pb, pa);\r
+            }\r
+            return;\r
+        }\r
+        if (a instanceof ParentNode<?>) {\r
+            ParentNode<?> ppa = (ParentNode<?>) a;\r
+            ParentNode<?> ppb = (ParentNode<?>) b;\r
+\r
+            Collection<String> aids = ppa.getNodeIds();\r
+            Collection<String> bids = ppb.getNodeIds();\r
+            if (!aids.equals(bids)) {\r
+                aChildrenDiffer.put(ppa, ppb);\r
+                bChildrenDiffer.put(ppb, ppa);\r
+            }\r
+\r
+            // Both nodes have an identically named set of child nodes.\r
+            if (a instanceof G2DParentNode) {\r
+                IG2DNode[] sac = ((G2DParentNode) a).getSortedNodes();\r
+                IG2DNode[] sbc = ((G2DParentNode) b).getSortedNodes();\r
+                for (int i = 0; i < sac.length; ++i) {\r
+                    analyze(ppa, sac[i], ppb, sbc[i]);\r
+                }\r
+            } else {\r
+                for (String id : aids) {\r
+                    INode ac = ppa.getNode(id);\r
+                    INode bc = ppb.getNode(id);\r
+                    analyze(ppa, ac, ppb, bc);\r
+                }\r
+            }\r
+        }\r
+    }\r
+\r
+    private boolean equals(INode a, INode b) {\r
+        Class<?> clazz = a.getClass();\r
+        if (!clazz.equals(b.getClass()))\r
+            return false;\r
+\r
+        // TODO: use reflection to compare field by field\r
+        // ignore transient fields\r
+        // ignore Node.id field\r
+\r
+        return true;\r
+    }\r
+\r
+    @Override\r
+    public String toString() {\r
+        if (equal())\r
+            return "no differences";\r
+        StringBuilder sb = new StringBuilder();\r
+        sb.append("Differences between nodes:\n");\r
+        for (Pair<INode, INode> p : different) {\r
+            sb.append(p.first.getClass().getSimpleName()).append(p.first).append("\nvs.\n").append(p.second.getClass().getSimpleName()).append(p.second).append("\n");\r
+        }\r
+        return sb.toString();\r
+    }\r
+\r
+    public static void main(String[] args) {\r
+        G2DSceneGraph sg1 = new G2DSceneGraph();\r
+        G2DSceneGraph sg2 = new G2DSceneGraph();\r
+\r
+        SceneGraphComparator sgc = new SceneGraphComparator(sg1, sg1);\r
+        sgc.analyze();\r
+        System.out.println(sgc);\r
+        sgc = new SceneGraphComparator(sg1, sg2);\r
+        sgc.analyze();\r
+        System.out.println(sgc);\r
+    }\r
+\r
+}\r