tests/org.simantics.db.tests/src/org/simantics/db/tests/api/write/claimValue/DataBlobTest.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.write.claimValue;
  13
  14 import java.util.Collection;
  15 import java.util.UUID;
  16
  17 import org.junit.Test;
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.WriteGraph;
  21 import org.simantics.db.testing.base.ExistingDatabaseTest;
  22 import org.simantics.db.testing.common.WriteQuery;
  23 import org.simantics.layer0.Layer0;
  24
  25 /**
  26  * Creates large data array and stores it into the database.
  27  *
  28  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
  29  *
  30  */
  31 public class DataBlobTest extends ExistingDatabaseTest {
  32
  33         private static int ARRAY_SIZE = 1*1024*1024; // 60*1024*1024;
  34
  35         @Test
  36         public void testDataBlob() throws Exception{
  37                 final Resource rootLib = getSession().getRootLibrary();
  38         final String random = UUID.randomUUID().toString();
  39         final String newInstanceName = "New Instance" + random;
  40         if (DEBUG)
  41             System.out.println("Test start");
  42                         getSession().syncRequest(new WriteQuery(this) {
  43                                 @Override
  44                                 public void run(WriteGraph g) throws Throwable {
  45                                         Layer0 b = Layer0.getInstance(g);
  46                                         byte data[] = new byte[ARRAY_SIZE];
  47                                         for (int i = 0; i < data.length; i++) {
  48                                                 data[i] = (byte)(i % 2);
  49                                         }
  50                                         Resource instance = g.newResource();
  51                                         g.claim(instance, b.InstanceOf, null, b.Type);
  52                                         g.claimLiteral(instance, b.HasName, newInstanceName);
  53                                         g.claim(rootLib, b.ConsistsOf, instance);
  54
  55                                         Resource prop = g.newResource();
  56                                 g.claim(prop, b.InstanceOf, b.ByteArray);
  57                                 g.claimValue(prop, data);
  58
  59                                 // Link it to the thing
  60                                 g.claim(instance, b.HasProperty, prop);
  61                                 }
  62                         });
  63
  64
  65                 checkException();
  66
  67         if (DEBUG)
  68             System.out.println("Reading stage");
  69                 getSession().syncRequest(new TestReadRequest() {
  70                         @Override
  71                         public void run(ReadGraph g) throws Throwable {
  72                                 Layer0 b = Layer0.getInstance(g);
  73                                 Collection<Resource> resources = g.getObjects(rootLib, b.ConsistsOf);
  74                                 for (Resource r : resources) {
  75                     String value = g.getPossibleRelatedValue(r, b.HasName);
  76                     if (null != value && value.equals(newInstanceName)) {
  77                         for (Resource p : g.getObjects(r, b.HasProperty))
  78                                 if (g.isInstanceOf(p, b.ByteArray)) {
  79                                         byte[] data = g.getValue(p);
  80                                         if (data.length != ARRAY_SIZE)
  81                                                 fail("Data blob lenght does not match.");
  82                                                         for (int i = 0; i < data.length; i++) {
  83                                                                 if (data[i] != (byte)(i % 2))
  84                                                                         fail("Data blob content does not match.");
  85                                                         }
  86                                                         return;
  87                                 }
  88                     }
  89                                 }
  90                         fail("Data blob not found.");
  91                         }
  92                 });
  93         if (DEBUG)
  94             System.out.println("test done");
  95                 checkException();
  96         }
  97
  98 }