tests/org.simantics.db.tests/src/org/simantics/db/tests/api/request/thread/ThreadingTest2.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   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
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.tests.api.request.thread;
  13
  14 import org.junit.Test;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.Session;
  17 import org.simantics.db.common.procedure.adapter.ListenerAdapter;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.db.request.Read;
  20 import org.simantics.db.service.QueryControl;
  21 import org.simantics.db.testing.base.ExistingDatabaseTest;
  22
  23 /*
  24  * This test ensures that synchronous requests are processed in same thread
  25  *
  26  */
  27 public class ThreadingTest2 extends ExistingDatabaseTest {
  28
  29         @Test
  30     public void test() throws Exception {
  31
  32                 Session session = getSession();
  33
  34                 QueryControl control = session.getService(QueryControl.class);
  35                 if(control.getAmountOfQueryThreads() == 1) return;
  36
  37                 int result = session.syncRequest(new Read<Integer>() {
  38
  39             @Override
  40             public Integer perform(ReadGraph graph) throws DatabaseException {
  41
  42                 final int thread = graph.thread();
  43
  44                 return graph.syncRequest(new Read<Integer>() {
  45
  46                                         @Override
  47                                         public Integer perform(ReadGraph graph) throws DatabaseException {
  48
  49                                                 assert(thread == graph.thread());
  50
  51                                                 return 1;
  52
  53                                         }
  54
  55                 });
  56
  57             }
  58
  59             @Override
  60             public int hashCode() {
  61                 return 0;
  62             }
  63
  64                 }, new ListenerAdapter<Integer>() {
  65                         @Override
  66                         public boolean isDisposed() {
  67                                 return false;
  68                         }
  69                 });
  70
  71                 assert(result == 1);
  72
  73         }
  74
  75 }