1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.db.impl.procedure;
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14 import java.util.ArrayList;
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15 import java.util.concurrent.atomic.AtomicBoolean;
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17 import org.simantics.db.AsyncReadGraph;
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18 import org.simantics.db.common.utils.Logger;
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19 import org.simantics.db.impl.query.QueryProcessor.AsyncBarrier;
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20 import org.simantics.db.procedure.AsyncMultiProcedure;
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22 public class ResultCallWrappedQueryProcedure4<Result> implements AsyncMultiProcedure<Result> {
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24 final private ArrayList<Result> result;
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25 private Throwable exception = null;
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26 final private AsyncMultiProcedure<Result> procedure;
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27 final private AtomicBoolean latch;
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29 public ResultCallWrappedQueryProcedure4(AsyncMultiProcedure<Result> procedure) {
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30 this.procedure = procedure;
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31 latch = new AtomicBoolean(false);
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32 result = new ArrayList<Result>();
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36 public void execute(AsyncReadGraph graph, Result result) {
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38 synchronized(this.result) {
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39 this.result.add(result);
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41 procedure.execute(graph, result);
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42 } catch (Throwable t) {
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43 Logger.defaultLogError("AsyncMultiProcedure.execute failed for " + procedure, t);
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48 public void finished(AsyncReadGraph graph) {
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49 if(latch.compareAndSet(false, true)) {
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51 procedure.finished(graph);
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52 } catch (Throwable t) {
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53 Logger.defaultLogError("AsyncMultiProcedure.exception failed for " + procedure, t);
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57 Logger.defaultLogError("Finished or exception was called many times (this time is finished)");
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62 public void exception(AsyncReadGraph graph, Throwable t) {
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63 if(latch.compareAndSet(false, true)) {
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66 procedure.exception(graph, t);
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67 } catch (Throwable throwable) {
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68 Logger.defaultLogError("AsyncMultiProcedure.exception failed for " + procedure, throwable);
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72 Logger.defaultLogError("Finished or exception was called many times (this time is exception)");
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76 public ArrayList<Result> getResult() {
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80 public Throwable getException() {
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85 public String toString() {
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86 return "ResultCallWrappedQueryProcedure4[" + procedure + "]";
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