Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / request / EnumerationMap.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/EnumerationMap.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/EnumerationMap.java
new file mode 100644 (file)
index 0000000..a7e1ab9
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/EnumerationMap.java
@@ -0,0 +1,42 @@
+/*******************************************************************************\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.db.common.request;\r
+\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+\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 EnumerationMap extends ResourceRead<Map<String, Resource>> {\r
+\r
+       public EnumerationMap(Resource type) {\r
+               super(type);\r
+       }\r
+\r
+       @Override\r
+       public Map<String, Resource> perform(ReadGraph graph) throws DatabaseException {\r
+\r
+               Layer0 L0 = Layer0.getInstance(graph);\r
+               Map<String, Resource> result = new HashMap<String, Resource>();\r
+               for(Resource lit : graph.syncRequest(new ObjectsWithType(resource, L0.ConsistsOf, resource))) {\r
+                       String label = graph.getPossibleRelatedValue(lit, L0.HasLabel);\r
+                       if(label == null) label = graph.getRelatedValue(lit, L0.HasName);\r
+                       result.put(label, lit);\r
+               }\r
+               return result;\r
+\r
+       }\r
+\r
+}\r