Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/FunctionalStatementMapOfResource.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/FunctionalStatementMapOfResource.java
new file mode 100644 (file)
index 0000000..7b7457a
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/FunctionalStatementMapOfResource.java
@@ -0,0 +1,50 @@
+/*******************************************************************************\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 gnu.trove.map.hash.THashMap;\r
+\r
+import java.util.Collection;\r
+import java.util.Map;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.util.URIStringUtils;\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 FunctionalStatementMapOfResource extends ResourceRead<Map<String, Resource>> {\r
+\r
+    public FunctionalStatementMapOfResource(Resource resource) {\r
+        super(resource);\r
+    }\r
+\r
+    @Override\r
+    public Map<String,Resource> perform(ReadGraph graph) throws DatabaseException {\r
+\r
+        Layer0 L0 = Layer0.getInstance(graph);\r
+        Collection<Resource> predicates = graph.getPredicates(resource); \r
+        THashMap<String, Resource> result = new THashMap<String, Resource>(predicates.size());\r
+        for(Resource predicate : predicates) {\r
+            if(graph.isInstanceOf(predicate, L0.FunctionalRelation)) {\r
+                String name = graph.getPossibleRelatedValue(predicate, L0.HasName, Bindings.STRING);\r
+                Resource obj = graph.getSingleObject(resource, predicate);\r
+                if(name != null)\r
+                    result.put(name, obj);\r
+            }\r
+        }\r
+        return result;\r
+\r
+    }\r
+\r
+}\r