tests/org.simantics.db.tests/src/org/simantics/db/tests/api/request/misc/SyncAsyncSyncTest.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.misc;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.concurrent.ConcurrentSkipListSet;
  17
  18 import org.junit.Test;
  19 import org.simantics.db.AsyncReadGraph;
  20 import org.simantics.db.ReadGraph;
  21 import org.simantics.db.Resource;
  22 import org.simantics.db.Session;
  23 import org.simantics.db.exception.DatabaseException;
  24 import org.simantics.db.procedure.AsyncProcedure;
  25 import org.simantics.db.procedure.Procedure;
  26 import org.simantics.db.request.AsyncRead;
  27 import org.simantics.db.request.Read;
  28 import org.simantics.db.testing.base.ExistingDatabaseTest;
  29 import org.simantics.layer0.Layer0;
  30
  31 public class SyncAsyncSyncTest extends ExistingDatabaseTest {
  32
  33         @Test
  34     public void test() throws Exception {
  35
  36                 Session session = getSession();
  37
  38                 final ConcurrentSkipListSet<String> names = new ConcurrentSkipListSet<String>();
  39                 final ArrayList<Resource> resources = new ArrayList<Resource>();
  40                 final Resource root = SyncAsyncSyncUtils.createNames(session, names, resources);
  41
  42                 session.syncRequest(new TestAsyncReadRequest() {
  43
  44             @Override
  45             public void run(AsyncReadGraph graph) throws Throwable {
  46
  47                 final Layer0 b = Layer0.getInstance(graph);
  48                 Collection<Resource> rs = graph.getObjects(root, b.ConsistsOf);
  49                 for(final Resource r : rs) {
  50
  51                     graph.asyncRequest(new AsyncRead<String>() {
  52
  53                         @Override
  54                         public void perform(AsyncReadGraph graph, AsyncProcedure<String> procedure) {
  55
  56                             graph.asyncRequest(new Read<String>() {
  57
  58                                 @Override
  59                                 public String perform(ReadGraph graph) throws DatabaseException {
  60                                     return graph.getRelatedValue(r, b.HasName);
  61                                 }
  62
  63                             }, procedure);
  64
  65                         }
  66
  67                         @Override
  68                             public int threadHash() {
  69                                 return hashCode();
  70                             }
  71
  72                         @Override
  73                         public int getFlags() {
  74                             return 0;
  75                         }
  76
  77                     }, new Procedure<String>() {
  78
  79                         @Override
  80                         public void exception(Throwable t) {
  81                             t.printStackTrace();
  82                         }
  83
  84                         @Override
  85                         public void execute(String result) {
  86                             names.remove(result);
  87                         }
  88
  89                     });
  90
  91                 }
  92
  93             }
  94
  95                 });
  96
  97                 assert(names.isEmpty());
  98
  99         }
 100
 101 }