--- /dev/null
+/*******************************************************************************\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.Collection;\r
+import java.util.Set;\r
+import java.util.concurrent.ConcurrentLinkedQueue;\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.common.utils.Logger;\r
+import org.simantics.db.procedure.AsyncMultiProcedure;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+\r
+final public class ObjectsWithTypeAsync extends ResourceAsyncRead3<Collection<Resource>> {\r
+\r
+ public ObjectsWithTypeAsync(Resource subject, Resource subrelationOf, Resource instanceOf) {\r
+ super(subject, subrelationOf, instanceOf);\r
+ }\r
+\r
+ @Override\r
+ public void perform(AsyncReadGraph graph, final AsyncProcedure<Collection<Resource>> procedure) {\r
+\r
+ final Collection<Resource> result = new ConcurrentLinkedQueue<Resource>();\r
+ final ProcedureBarrier<Collection<Resource>> ready = new ProcedureBarrier<Collection<Resource>>(1);\r
+ \r
+ graph.forEachObject(resource, resource2, new AsyncMultiProcedure<Resource>() {\r
+\r
+ @Override\r
+ public void execute(AsyncReadGraph graph, final Resource object) {\r
+ \r
+ ready.incrementAndGet();\r
+ \r
+ graph.forTypes(object, new AsyncProcedure<Set<Resource>>() {\r
+ \r
+ @Override\r
+ public void execute(AsyncReadGraph graph, Set<Resource> types) {\r
+\r
+ if(types.contains(resource3)) {\r
+ result.add(object);\r
+ }\r
+ \r
+ ready.dec(graph, procedure, result);\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+ \r
+ throwable.printStackTrace();\r
+ Logger.defaultLogError(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
+ throwable.printStackTrace();\r
+ Logger.defaultLogError(throwable);\r
+ \r
+ ready.except(throwable);\r
+ ready.dec(graph, procedure, result);\r
+ \r
+ }\r
+ \r
+ });\r
+ \r
+ }\r
+ \r
+// @Override\r
+// public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
+// \r
+// Set<Resource> result = new HashSet<Resource>();\r
+// for(Resource object : graph.getObjects(resource, resource2)) {\r
+// if(graph.isInstanceOf(object, resource3)) result.add(object);\r
+// }\r
+// return result;\r
+// \r
+// }\r
+\r
+}\r