tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/virtualGraphSupport/VirtualGraphTest.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.support.virtualGraphSupport;
  13
  14 import java.util.UUID;
  15
  16 import org.junit.Test;
  17 import org.simantics.databoard.Bindings;
  18 import org.simantics.db.Resource;
  19 import org.simantics.db.Session;
  20 import org.simantics.db.VirtualGraph;
  21 import org.simantics.db.WriteGraph;
  22 import org.simantics.db.common.request.WriteRequest;
  23 import org.simantics.db.common.request.WriteResultRequest;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.db.service.VirtualGraphSupport;
  26 import org.simantics.db.testing.base.TestCleanDb;
  27 import org.simantics.layer0.Layer0;
  28
  29 public class VirtualGraphTest extends TestCleanDb {
  30
  31         private Error exception;
  32
  33         @Test
  34         public void test() throws DatabaseException {
  35
  36                 Session session = getSession();
  37
  38                 session.syncRequest(new WriteRequest() {
  39
  40                         @Override
  41                         public void perform(WriteGraph graph) throws DatabaseException {
  42
  43                                 Layer0 L0 = Layer0.getInstance(graph);
  44
  45                                 final Resource newResource = graph.syncRequest(new WriteResultRequest<Resource>() {
  46
  47                                         @Override
  48                                         public Resource perform(WriteGraph graph) throws DatabaseException {
  49
  50                                                 Layer0 L0 = Layer0.getInstance(graph);
  51                                                 Resource result = graph.newResource();
  52                                                 graph.addLiteral(result, L0.HasName, L0.NameOf, L0.String, "RootLibrary", Bindings.STRING);
  53                                                 return result;
  54
  55                                         }
  56
  57                                 });
  58
  59                                 String rootName = graph.getRelatedValue(newResource, L0.HasName);
  60                                 if(!rootName.equals("RootLibrary")) {
  61                                         exception = new AssertionError("rootName != 'RootLibrary'");
  62                                         throw exception;
  63                                 }
  64
  65                                 VirtualGraphSupport support = graph.getSession().getService(VirtualGraphSupport.class);
  66                                 final VirtualGraph virtual = support.getMemoryPersistent(UUID.randomUUID().toString());
  67
  68                                 graph.syncRequest(new WriteRequest(virtual) {
  69
  70                                         @Override
  71                                         public void perform(WriteGraph graph) throws DatabaseException {
  72
  73                                                 Layer0 L0 = Layer0.getInstance(graph);
  74                                                 graph.addLiteral(newResource, L0.HasName, L0.NameOf, L0.String, "RootLibrary2", Bindings.STRING);
  75
  76                                         }
  77
  78                                 });
  79
  80                                 rootName = graph.getRelatedValue(newResource, L0.HasName);
  81                                 if(!rootName.equals("RootLibrary2")) {
  82                                         exception = new AssertionError("rootName != 'RootLibrary2'");
  83                                         throw exception;
  84                                 }
  85
  86                                 support.discard(virtual);
  87
  88                                 rootName = graph.getRelatedValue(newResource, L0.HasName);
  89                                 if(!rootName.equals("RootLibrary")) {
  90                                         exception = new AssertionError("rootName != 'RootLibrary'");
  91                                         throw exception;
  92                                 }
  93
  94                         }
  95
  96                 });
  97
  98                 if(exception != null) {
  99                         fail("Write transaction threw and exception (" + exception.getMessage() + ") which was not passed through ");
 100                 }
 101
 102         }
 103
 104 }