tests/org.simantics.db.tests/src/org/simantics/db/tests/api/readGraph/getSingleObject/GetSingleObjectTest3_bak.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.readGraph.getSingleObject;
  13
  14 import org.junit.Test;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.Session;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.common.procedure.adapter.ListenerAdapter;
  20 import org.simantics.db.common.request.WriteRequest;
  21 import org.simantics.db.exception.DatabaseException;
  22 import org.simantics.db.exception.NoSingleResultException;
  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;
  27 import org.simantics.utils.DataContainer;
  28
  29 /**
  30  * Tests cases where a non-functional relation uses
  31  * {@link ReadGraph#getSingleObject(org.simantics.db.Resource, org.simantics.db.Resource)}
  32  * with > 1 objects.
  33  *
  34  * <p>
  35  * Should throw {@link NoSingleResultException}, at the time of writing this
  36  * test, AsyncBarrierImpl refcounting is trashed and DB client is stuck.
  37  */
  38 public class GetSingleObjectTest3_bak extends ExistingDatabaseTest {
  39
  40         @Test
  41     public void testSingleObject() throws Exception {
  42         Session session = getSession();
  43
  44         final DataContainer<Resource> nonfunctionalRelation = new DataContainer<Resource>();
  45         final DataContainer<Resource> subject = new DataContainer<Resource>();
  46         try {
  47             session.syncRequest(new WriteRequest() {
  48                 @Override
  49                 public void perform(WriteGraph graph) throws DatabaseException {
  50                     // Use any non-functional relation
  51                     Layer0 b = Layer0.getInstance(graph);
  52
  53                     Resource rel = graph.newResource();
  54                     graph.claim(rel, b.SubrelationOf, b.IsRelatedTo);
  55
  56                     Resource rel2 = graph.newResource();
  57                     graph.claim(rel2, b.SubrelationOf, rel);
  58
  59                     Resource s = graph.newResource();
  60                     graph.claim(s, b.InstanceOf, b.Entity);
  61
  62                     Resource o1 = graph.newResource();
  63 //                    Resource o2 = graph.newResource();
  64
  65                     graph.claim(s, rel, o1);
  66 //                    graph.claim(s, rel, o2);
  67
  68                     nonfunctionalRelation.set(rel);
  69                     subject.set(s);
  70                 }
  71             });
  72         } catch (Throwable e) {
  73             fail("Write transaction threw an unknown exception " + e);
  74         }
  75
  76         try {
  77             session.syncRequest(new Read<Resource>() {
  78                 @Override
  79                 public Resource perform(ReadGraph graph) throws DatabaseException {
  80                     return graph.getSingleObject(subject.get(), nonfunctionalRelation.get());
  81                 }
  82             }, new ListenerAdapter<Resource>() {
  83
  84                                 @Override
  85                                 public boolean isDisposed() {
  86                                         return false;
  87                                 }
  88
  89             });
  90         } catch (NoSingleResultException e) {
  91             System.out.println("Read transaction threw an expected exception " + e);
  92         } catch (Throwable e) {
  93             fail("Read transaction threw an unexpected exception " + e);
  94         }
  95
  96         if (DEBUG)
  97             System.out.println("################################################");
  98
  99         try {
 100             session.syncRequest(new WriteRequest() {
 101                 @Override
 102                 public void perform(WriteGraph graph) throws DatabaseException {
 103                     graph.claim(subject.get(), nonfunctionalRelation.get(), nonfunctionalRelation.get());
 104                 }
 105             });
 106         } catch (Throwable e) {
 107             fail("Write transaction threw an unknown exception " + e);
 108         }
 109
 110     }
 111
 112 }