Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / uri / UnescapedChildMapOfResource.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/UnescapedChildMapOfResource.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/UnescapedChildMapOfResource.java
new file mode 100644 (file)
index 0000000..303afdd
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/UnescapedChildMapOfResource.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.db.common.uri;\r
+\r
+import java.util.Collection;\r
+import java.util.Map;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ResourceRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.service.CollectionSupport;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.utils.Development;\r
+\r
+public class UnescapedChildMapOfResource extends ResourceRead<Map<String, Resource>> {\r
+\r
+       public UnescapedChildMapOfResource(Resource resource) {\r
+           super(resource);\r
+       }\r
+       \r
+       @Override\r
+       public Map<String, Resource> perform(ReadGraph graph) throws DatabaseException {\r
+           Layer0 L0 = Layer0.getInstance(graph);\r
+           Collection<Resource> objects = graph.getObjects(resource, L0.ConsistsOf);\r
+           CollectionSupport cs = graph.getService(CollectionSupport.class);\r
+           Map<String,Resource> result = cs.createObjectResourceMap(String.class, objects.size());\r
+           for(Resource r : objects) {\r
+               String name = graph.getPossibleRelatedValue(r, L0.HasName, Bindings.STRING);\r
+               if(name != null) {\r
+                   Resource old = result.put(name, r);\r
+                   if (old != null)\r
+                       System.err.println(this + ": The database contains siblings with the same name " + name + " (resource=$" + resource.getResourceId() + ", child=$" + r.getResourceId() + ", previous child=$" + old.getResourceId() + ").");\r
+               } else {\r
+                       if(Development.DEVELOPMENT)\r
+                           System.err.println(this + ": The database contains a child with no unique name (resource=$" + resource.getResourceId() + ", child=$" + r.getResourceId() + ").");\r
+               }\r
+           }\r
+           return result;\r
+       }       \r
+       \r
+}\r