--- /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.impl.procedure;\r
+\r
+import java.util.concurrent.atomic.AtomicBoolean;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.common.utils.Logger;\r
+import org.simantics.db.impl.graph.AsyncBarrierImpl;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+\r
+public class CallWrappedSingleQueryProcedure4<Result> implements AsyncProcedure<Result> {\r
+\r
+ final private Object key;\r
+ final private AsyncProcedure<Result> procedure;\r
+ final private AtomicBoolean latch = new AtomicBoolean(false);\r
+ \r
+ public CallWrappedSingleQueryProcedure4(AsyncProcedure<Result> procedure, Object key) {\r
+ this.procedure = procedure;\r
+ this.key = key;\r
+ }\r
+ \r
+ @Override\r
+ public void execute(AsyncReadGraph graph, Result result) {\r
+ if(latch.compareAndSet(false, true)) {\r
+ try {\r
+ procedure.execute(graph, result);\r
+ } catch (Throwable t) {\r
+ Logger.defaultLogError("AsyncProcedure.exception failed for " + procedure, t);\r
+ } finally {\r
+ }\r
+ } else {\r
+ Logger.defaultLogError("Execute or exception was called many times (this time is execute)");\r
+ }\r
+ }\r
+\r
+ @Override\r
+ public void exception(AsyncReadGraph graph, Throwable t) {\r
+ if(latch.compareAndSet(false, true)) {\r
+ try {\r
+ procedure.exception(graph, t);\r
+ } catch (Throwable throwable) {\r
+ Logger.defaultLogError("AsyncProcedure.exception failed for " + procedure, throwable);\r
+ } finally {\r
+ }\r
+ } else {\r
+ Logger.defaultLogError("Execute or exception was called many times (this time is exception)");\r
+ }\r
+ }\r
+ \r
+}\r