tests/org.simantics.db.tests/src/org/simantics/db/tests/api/request/misc/SyncAsyncSyncTest4.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.concurrent.ConcurrentSkipListSet;
  16
  17 import org.junit.Test;
  18 import org.simantics.db.AsyncReadGraph;
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.Session;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.db.procedure.AsyncProcedure;
  24 import org.simantics.db.procedure.Procedure;
  25 import org.simantics.db.request.AsyncRead;
  26 import org.simantics.db.request.Read;
  27 import org.simantics.db.testing.base.ExistingDatabaseTest;
  28 import org.simantics.layer0.Layer0;
  29
  30 public class SyncAsyncSyncTest4 extends ExistingDatabaseTest {
  31
  32         @Test
  33         public void test() throws Exception {
  34
  35                 Session session = getSession();
  36
  37                 final ConcurrentSkipListSet<String> names = new ConcurrentSkipListSet<String>();
  38                 final ArrayList<Resource> resources = new ArrayList<Resource>();
  39                 final Resource root = SyncAsyncSyncUtils.createNames(session, names, resources);
  40         final Layer0 b = Layer0.getInstance(getSession());
  41
  42                 session.syncRequest(new AsyncRead<Resource>() {
  43
  44             @Override
  45                     public int threadHash() {
  46                         return hashCode();
  47                     }
  48
  49             @Override
  50             public void perform(AsyncReadGraph graph, final AsyncProcedure<Resource> procedure) {
  51
  52                 graph.forPossibleObject(root, b.InstanceOf, new AsyncProcedure<Resource>() {
  53
  54                     @Override
  55                     public void exception(AsyncReadGraph graph, Throwable throwable) {
  56                     }
  57
  58                     @Override
  59                     public void execute(AsyncReadGraph graph, Resource result) {
  60
  61                         procedure.execute(graph, result);
  62
  63                         for(final Resource r : resources) {
  64
  65                             graph.asyncRequest(new Read<String>() {
  66
  67                                 @Override
  68                                 public String perform(ReadGraph graph) throws DatabaseException {
  69                                     return graph.getRelatedValue(r, b.HasName);
  70                                 }
  71
  72                                 @Override
  73                                 public String toString() {
  74                                     return "Read " + r.getResourceId();
  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
  98             @Override
  99             public int getFlags() {
 100                 return 0;
 101             }
 102
 103                 });
 104
 105                 assert(names.isEmpty());
 106
 107         }
 108
 109 }