Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.graph.impl / src / org / simantics / browsing / ui / graph / impl / TypeIndexViewpointFactory.java

diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/TypeIndexViewpointFactory.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/TypeIndexViewpointFactory.java
new file mode 100644 (file)
index 0000000..5cd5ec6
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/TypeIndexViewpointFactory.java
@@ -0,0 +1,101 @@
+/*******************************************************************************\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.browsing.ui.graph.impl;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+import java.util.function.Consumer;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointKey;\r
+import org.simantics.browsing.ui.DataSource;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.common.NodeContextBuilder;\r
+import org.simantics.browsing.ui.common.viewpoints.LazyContainerViewpoint;\r
+import org.simantics.browsing.ui.content.Viewpoint;\r
+import org.simantics.browsing.ui.content.ViewpointFactory;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public class TypeIndexViewpointFactory implements ViewpointFactory {\r
+\r
+    @Override\r
+    public Viewpoint create(final PrimitiveQueryUpdater provider, final NodeContext context, final ViewpointKey key) {\r
+        assert(provider != null);\r
+        assert(context != null);\r
+        \r
+        final LazyContainerViewpoint result = new LazyContainerViewpoint();\r
+        \r
+        DataSource<ReadGraph> source = provider.getDataSource(ReadGraph.class);\r
+        if (source == null)\r
+            return result;\r
+        \r
+        final Resource inputResource = (Resource) context.getConstant(BuiltinKeys.INPUT);\r
+        assert(inputResource != null);\r
+        \r
+        source.schedule(new Consumer<ReadGraph>() {\r
+\r
+            @Override\r
+            public void accept(ReadGraph source) {\r
+\r
+               try {\r
+               \r
+                       HashMap<Resource, Collection<Resource>> index = new HashMap<Resource, Collection<Resource>>(); \r
+                       \r
+                       Layer0 L0 = Layer0.getInstance(source);\r
+                       for(Resource child : source.getObjects(inputResource, L0.ConsistsOf)) {\r
+                           \r
+                           for(Resource type : source.getObjects(child, L0.InstanceOf)) {\r
+                               Collection<Resource> coll = index.get(type);\r
+                               if(coll == null) {\r
+                                   coll = new ArrayList<Resource>();\r
+                                   index.put(type, coll);\r
+                               }\r
+                               coll.add(child);\r
+                           }\r
+                           \r
+                       }\r
+       \r
+                       NodeContext[] resultContexts = new NodeContext[index.size()];\r
+                       int index2 = 0;\r
+                       for(Map.Entry<Resource, Collection<Resource>> e : index.entrySet()) {\r
+                           Resource type = e.getKey();\r
+                           String rep = source.adapt(type, String.class);\r
+                           resultContexts[index2++] = NodeContextBuilder.buildWithInput(new TypeIndex(type, e.getValue(), rep));\r
+                       }\r
+                       result.setChildren(provider, resultContexts);\r
+                       result.setHasChildren(resultContexts.length > 0);\r
+       \r
+                       provider.scheduleReplace(context, key, result);\r
+\r
+               } catch (DatabaseException e) {\r
+                       e.printStackTrace();\r
+               }\r
+                       \r
+            }\r
+            \r
+        });\r
+        \r
+        return result;\r
+    }\r
+    \r
+    @Override\r
+    public String toString() {\r
+        return "Structure by types";\r
+    }\r
+    \r
+}\r