tests/org.simantics.db.tests/src/org/simantics/db/tests/client/TransactionTest4.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.client;
  13
  14 import org.junit.Test;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.WriteGraph;
  18 import org.simantics.db.common.request.ReadRequest;
  19 import org.simantics.db.common.request.WriteResultRequest;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.db.service.XSupport;
  22 import org.simantics.db.testing.annotation.Fails;
  23 import org.simantics.db.testing.base.ExistingDatabaseTest;
  24 import org.simantics.db.testing.common.TestBase;
  25 import org.simantics.layer0.Layer0;
  26
  27 public class TransactionTest4 extends ExistingDatabaseTest {
  28         @Test
  29         @Fails
  30         public void testTransaction4()
  31         throws DatabaseException {
  32             breakConnectionDuringTransaction();
  33         }
  34         void breakConnectionDuringTransaction() throws DatabaseException {
  35             TransactionTest4Client client = new TransactionTest4Client(this);
  36         try {
  37             client.syntheticBreakDuringCreateResource();
  38         } catch (Throwable t) {
  39                 if (DEBUG)
  40                         t.printStackTrace();
  41         } finally {
  42             if (null != client)
  43                 client.close();
  44         }
  45             TransactionTest4Client client2 = new TransactionTest4Client(this);
  46         try {
  47             client2.readQuery();
  48         } finally {
  49             if (null != client2)
  50                 client2.close();
  51         }
  52         }
  53 }
  54
  55 class TransactionTest4Client extends TransctionCommon {
  56     TransactionTest4Client(ExistingDatabaseTest testCommon)
  57     throws DatabaseException {
  58         super(testCommon);
  59     }
  60     public Resource syntheticBreakDuringCreateResource()
  61     throws DatabaseException {
  62         return session.syncRequest(new WriteResultRequest<Resource>() {
  63             @Override
  64             public Resource perform(WriteGraph g) throws DatabaseException {
  65                 Layer0 b = Layer0.getInstance(g);
  66                 Resource r = g.newResource();
  67                 g.claim(r, b.InstanceOf, b.Entity);
  68                 session.getService(XSupport.class).flushCluster(r);
  69                 try {
  70                                         Thread.sleep(1000); // millisecond
  71                                 } catch (InterruptedException e) {
  72                                         if (DEBUG)
  73                                                 e.printStackTrace();
  74                                 }
  75                 session.getService(XSupport.class).breakConnection();
  76                 return r;
  77             }
  78         });
  79     }
  80     public void readQuery()
  81     throws DatabaseException {
  82         session.syncRequest(new ReadRequest() {
  83             @Override
  84             public void run(ReadGraph g) throws DatabaseException {
  85                 Layer0 l0 = Layer0.getInstance(g);
  86                 Resource rl = g.getResource(TestBase.ROOT_LIBRARY_URI);
  87                 for (Resource r : g.getObjects(rl, l0.ConsistsOf))
  88                         if (DEBUG)
  89                                 System.out.println("Root library " + rl + " consists  of " + r);
  90             }
  91         });
  92     }
  93 }