AssertChecker


1   /*******************************************************************************
2    * Copyright (c) 2000, 2004 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.test.internal.performance.eval;
12  
13  import java.util.Arrays  ;
14  import java.util.HashSet  ;
15  import java.util.Set  ;
16  
17  import org.eclipse.test.internal.performance.data.Assert;
18  import org.eclipse.test.internal.performance.data.Dim;
19  
20  /**
21   * @since 3.1
22   */
23  public abstract class AssertChecker {
24      private Set   fDimensions;
25      
26      public AssertChecker(Dim dimension) {
27          this(new Dim[] {dimension});
28      }
29      
30      public AssertChecker(Dim[] dimensions) {
31          fDimensions= new HashSet  ();
32          fDimensions.addAll(Arrays.asList(dimensions));
33      }
34      
35      public Dim[] getDimensions() {
36          return (Dim[]) fDimensions.toArray(new Dim[fDimensions.size()]);
37      }
38  
39      protected Dim getDimension() {
40          Assert.isTrue(fDimensions.size() == 1);
41          return getDimensions()[0];
42      }
43  
44      /**
45       * Evaluates the predicate.
46       * 
47       * @param reference statistics of dimensions of the reference metering session
48       * @param measured statistics of dimensions of the metering session to be tested
49       * @param message a message presented to the user upon failure
50       * @return <code>true</code> if the predicate passes, <code>false</code> if it fails
51       */
52      public abstract boolean test(StatisticsSession reference, StatisticsSession measured, StringBuffer   message);
53  }
54
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