Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/RelationContextLabelerFactory.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/RelationContextLabelerFactory.java
new file mode 100644 (file)
index 0000000..10aec4c
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/RelationContextLabelerFactory.java
@@ -0,0 +1,52 @@
+/*******************************************************************************\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.Map;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.BuiltinKeys.LabelerKey;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.common.ColumnKeys;\r
+import org.simantics.browsing.ui.content.Labeler;\r
+import org.simantics.browsing.ui.content.LabelerFactory;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.RelationContext;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.utils.datastructures.ArrayMap;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class RelationContextLabelerFactory implements LabelerFactory {\r
+\r
+    @Override\r
+    public Labeler create(PrimitiveQueryUpdater updater, final NodeContext context, LabelerKey key) {\r
+        assert(updater != null);\r
+        assert(context != null);\r
+\r
+        return new LazyGraphLabeler(updater, context, key) {\r
+            @Override\r
+            public Map<String, String> labels(ReadGraph graph) throws DatabaseException {\r
+                final RelationContext ctx = (RelationContext) context.getConstant(BuiltinKeys.INPUT);\r
+                String property = LabelerUtil.safeStringRepresentation(graph, ctx.getStatement().getPredicate());\r
+                //System.out.println(getClass().getName() + ": relation context: " + NameUtils.getSafeName(graph, ctx.getSubject()) + " - " + NameUtils.toString(graph, ctx.getStatement()));\r
+                String object = graph.getPossibleRelatedAdapter(ctx.getSubject(), ctx.getStatement().getPredicate(), String.class);\r
+                if (object == null)\r
+                    object = LabelerUtil.safeStringRepresentation(graph, ctx.getStatement().getObject());\r
+                return ArrayMap.make(ColumnKeys.KEYS_PROPERTY_VALUE, new String[] { property, object });\r
+            }\r
+        };\r
+    }\r
+\r
+}\r