1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.db.tests.api.request.external;
14 import java.util.HashSet;
15 import java.util.concurrent.Semaphore;
17 import org.junit.Test;
18 import org.simantics.db.ReadGraph;
19 import org.simantics.db.Session;
20 import org.simantics.db.common.request.SingletonPrimitiveRead;
21 import org.simantics.db.exception.DatabaseException;
22 import org.simantics.db.procedure.Listener;
23 import org.simantics.db.request.Read;
24 import org.simantics.db.testing.annotation.Fails;
25 import org.simantics.db.testing.base.ExistingDatabaseTest;
26 import org.simantics.layer0.Layer0;
28 public class ExternalRequestTest4 extends ExistingDatabaseTest {
30 private Error exception;
32 boolean listenerAlive = true;
35 HashSet<Listener<String>> listeners = new HashSet<Listener<String>>();
37 class Primitive extends SingletonPrimitiveRead<String> {
40 public void register(ReadGraph graph, Listener<String> procedure) {
42 listeners.add(procedure);
43 procedure.execute("Result" + counter);
49 public void fireNewPrimitive() {
51 for(Listener<String> listener : listeners) listener.execute("Result" + counter);
56 public void test() throws Exception {
58 Session session = getSession();
60 final Semaphore s1 = new Semaphore(-6);
61 final Semaphore s2 = new Semaphore(-6);
63 session.syncRequest(new Read<String>() {
66 public String perform(ReadGraph graph) throws DatabaseException {
68 Layer0 b = Layer0.getInstance(graph);
69 String base = graph.getRelatedValue(graph.getRootLibrary(), b.HasName);
70 String appendix = graph.syncRequest(new Primitive());
71 return base + appendix;
75 }, new Listener<String>() {
78 public void exception(Throwable t) {
82 public void execute(String result) {
87 public boolean isDisposed() {
88 return !listenerAlive;
99 session.syncRequest(new Read<String>() {
102 public String perform(ReadGraph graph) throws DatabaseException {
104 Layer0 b = Layer0.getInstance(graph);
105 String base = graph.getRelatedValue(graph.getRootLibrary(), b.HasName);
106 String appendix = graph.syncRequest(new Primitive());
107 return base + appendix;
111 }, new Listener<String>() {
114 public void exception(Throwable t) {
118 public void execute(String result) {
123 public boolean isDisposed() {
134 listenerAlive = false;
143 if(exception != null) {
144 fail("Write transaction threw and exception (" + exception.getMessage() + ") which was not passed through ");