Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/EscapedChildMapOfResource.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/EscapedChildMapOfResource.java
new file mode 100644 (file)
index 0000000..99b20ff
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/EscapedChildMapOfResource.java
@@ -0,0 +1,79 @@
+/*******************************************************************************\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.Map;\r
+import java.util.concurrent.ConcurrentHashMap;\r
+\r
+import org.simantics.databoard.util.URIStringUtils;\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.ProcedureBarrier;\r
+import org.simantics.db.common.WriteBindings;\r
+import org.simantics.db.common.procedure.adapter.AsyncMultiProcedureAdapter;\r
+import org.simantics.db.common.request.ResourceAsyncRead;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public class EscapedChildMapOfResource extends ResourceAsyncRead<Map<String, Resource>> {\r
+\r
+       public EscapedChildMapOfResource(Resource resource) {\r
+           super(resource);\r
+       }\r
+\r
+       @Override\r
+       public void perform(AsyncReadGraph g, final AsyncProcedure<Map<String, Resource>> procedure) {\r
+               \r
+               final Layer0 L0 = g.getService(Layer0.class);\r
+               final ConcurrentHashMap<String, Resource> map = new ConcurrentHashMap<String, Resource>();\r
+               final ProcedureBarrier<Map<String, Resource>> barrier = new ProcedureBarrier<Map<String, Resource>>(1);\r
+               \r
+               g.forEachObject(resource, L0.ConsistsOf, new AsyncMultiProcedureAdapter<Resource>() {\r
+\r
+                       @Override\r
+                       public void execute(AsyncReadGraph g, final Resource child) {\r
+                               barrier.incrementAndGet();\r
+\r
+                               g.forPossibleRelatedValue(child, L0.HasName, WriteBindings.STRING, new AsyncProcedure<Object>() {\r
+\r
+                                       @Override\r
+                                       public void execute(AsyncReadGraph g, Object name) {\r
+                                               if (name != null) {\r
+                                                       String escapedName = URIStringUtils.escape((String)name); \r
+                                                       if (map.put(escapedName, child) != null)\r
+                                                               System.err.println(this + ": The database contains siblings with the same name " + escapedName + " (resource=" + resource.getResourceId() +").");\r
+                                               }\r
+                                               barrier.dec(g, procedure, map);\r
+                                       }\r
+                                       \r
+                                       @Override\r
+                                       public void exception(AsyncReadGraph graph, Throwable t) {\r
+                                               barrier.dec(graph, procedure, t);\r
+                                       }\r
+                                       \r
+                               });\r
+                       }\r
+                       \r
+                       @Override\r
+                       public void exception(AsyncReadGraph graph, Throwable t) {\r
+                               barrier.dec(graph, procedure, t);\r
+                       }\r
+                       \r
+                       @Override\r
+                       public void finished(AsyncReadGraph g) {\r
+                               barrier.dec(g, procedure, map);\r
+                       }\r
+                       \r
+               });\r
+       }\r
+       \r
+}\r