Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/MappedPartsAsync.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/MappedPartsAsync.java
new file mode 100644 (file)
index 0000000..d5d6723
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/MappedPartsAsync.java
@@ -0,0 +1,110 @@
+/*******************************************************************************\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.AsyncReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.ProcedureBarrier;\r
+import org.simantics.db.procedure.AsyncMultiProcedure;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.operation.Layer0X;\r
+\r
+public class MappedPartsAsync extends ResourceAsyncRead<Map<Resource, Resource>> {\r
+\r
+    public MappedPartsAsync(Resource realization) {\r
+        super(realization);\r
+    }\r
+    \r
+    @Override\r
+    public void perform(AsyncReadGraph graph, final AsyncProcedure<Map<Resource, Resource>> procedure) {\r
+\r
+       final Layer0 L0 = graph.getService(Layer0.class);\r
+       final Layer0X L0X = graph.getService(Layer0X.class);\r
+       final HashMap<Resource, Resource> result = new HashMap<Resource, Resource>();\r
+       final ProcedureBarrier<Map<Resource, Resource>> ready = new ProcedureBarrier<Map<Resource, Resource>>(1);\r
+       \r
+       graph.forEachObject(resource, L0.ConsistsOf, new AsyncMultiProcedure<Resource>() {\r
+\r
+                       @Override\r
+                       public void execute(AsyncReadGraph graph, final Resource object) {\r
+                               \r
+                               ready.incrementAndGet();\r
+                               \r
+                               graph.forEachObject(object, L0X.Represents, new AsyncMultiProcedure<Resource>() {\r
+\r
+                                       @Override\r
+                                       public void execute(AsyncReadGraph graph, Resource mapped) {\r
+\r
+                                               synchronized(result) {\r
+                                                       result.put(mapped, object);\r
+                                               }\r
+\r
+                                       }\r
+\r
+                                       @Override\r
+                                       public void finished(AsyncReadGraph graph) {\r
+\r
+                                               ready.dec(graph, procedure, result);\r
+\r
+                                       }\r
+\r
+                                       @Override\r
+                                       public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+\r
+                                               ready.except(throwable);\r
+                                               ready.dec(graph, procedure, result);\r
+\r
+                                       }\r
+\r
+                               });\r
+                               \r
+                       }\r
+\r
+                       @Override\r
+                       public void finished(AsyncReadGraph graph) {\r
+                               \r
+                               ready.dec(graph, procedure, result);\r
+                               \r
+                       }\r
+\r
+                       @Override\r
+                       public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                               \r
+                               ready.except(throwable);\r
+                               ready.dec(graph, procedure, result);\r
+                               \r
+                       }\r
+               \r
+       });\r
+       \r
+    }\r
+    \r
+//    @Override\r
+//    public Map<Resource, Resource> perform(ReadGraph graph) throws DatabaseException {\r
+//        \r
+//        Builtins b = graph.getBuiltins();\r
+//        Map<Resource, Resource> result = new HashMap<Resource, Resource>();\r
+//        \r
+//        for(Resource part : graph.syncRequest(new ObjectsWithType(resource, b.ConsistsOf, resource2))) {\r
+//             Resource represents = graph.getPossibleObject(part, b.Represents);\r
+//             if(represents != null) result.put(represents, part);\r
+//        }\r
+//        \r
+//        return result;\r
+//        \r
+//    }\r
+\r
+}\r