tests/org.simantics.db.tests/src/org/simantics/db/tests/api/readGraph/forEachObject/ForEachObjectTest1.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.forEachObject;
  13
  14 import java.util.concurrent.atomic.AtomicInteger;
  15
  16 import org.junit.Test;
  17 import org.simantics.databoard.Bindings;
  18 import org.simantics.db.AsyncReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.Session;
  21 import org.simantics.db.WriteGraph;
  22 import org.simantics.db.common.request.AsyncReadRequest;
  23 import org.simantics.db.common.request.WriteResultRequest;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.db.procedure.AsyncMultiProcedure;
  26 import org.simantics.db.testing.base.ExistingDatabaseTest;
  27 import org.simantics.layer0.Layer0;
  28 import org.simantics.utils.DataContainer;
  29
  30 public class ForEachObjectTest1 extends ExistingDatabaseTest {
  31
  32         @Test
  33         public void test() throws Exception {
  34
  35                 Session session = getSession();
  36
  37                 try {
  38
  39                         final Layer0 L0 = Layer0.getInstance(session);
  40
  41                 final Resource res = session.syncRequest(new WriteResultRequest<Resource>() {
  42
  43                         @Override
  44                         public Resource perform(WriteGraph graph) throws DatabaseException {
  45
  46                                 Resource part = graph.newResource();
  47                                 graph.addLiteral(part, L0.HasName, L0.NameOf, L0.String, "A", Bindings.STRING);
  48                                 graph.addLiteral(part, L0.HasName, L0.NameOf, L0.String, "B", Bindings.STRING);
  49                                 return part;
  50
  51                         }
  52
  53                 });
  54
  55                 final AtomicInteger finished = new AtomicInteger(0);
  56                 final AtomicInteger execute = new AtomicInteger(0);
  57                 final AtomicInteger exception = new AtomicInteger(0);
  58                 final DataContainer<Throwable> throwable = new DataContainer<Throwable>();
  59
  60                 session.syncRequest(new AsyncReadRequest() {
  61
  62                         @Override
  63                         public void run(AsyncReadGraph graph) {
  64
  65                                 graph.forEachObject(res, L0.HasName, new AsyncMultiProcedure<Resource>() {
  66
  67                                         @Override
  68                                         public void finished(AsyncReadGraph graph) {
  69                                                 finished.incrementAndGet();
  70                                         }
  71
  72                                         @Override
  73                                         public void execute(AsyncReadGraph graph, Resource result) {
  74                                                 execute.incrementAndGet();
  75                                         }
  76
  77                                         @Override
  78                                         public void exception(AsyncReadGraph graph, Throwable t) {
  79                                                 exception.incrementAndGet();
  80                                                 throwable.set(t);
  81                                         }
  82
  83                                 });
  84
  85                         }
  86
  87                 });
  88
  89                 if(finished.get() != 1) fail("finished was not 1");
  90                 if(execute.get() != 2) fail("execute was not 2 (was " + execute.get() + ")");
  91                 if(exception.get() != 0) fail("exception was not 0 (was " + exception.get() + ")");
  92                 if(throwable.get() != null) fail("there was a throwable");
  93
  94                 } catch(Throwable t) {
  95
  96                         fail("syncRequest threw unexpected throwable " + t);
  97
  98                 }
  99
 100         }
 101
 102 }