WorkingSetComparator


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 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.ui.externaltools.internal.launchConfigurations;
12  
13  import java.util.Comparator  ;
14  
15  import org.eclipse.debug.ui.RefreshTab;
16  import org.eclipse.ui.IWorkingSet;
17  
18  /**
19   * Comparator for refresh scope launch configuration attribute
20   * <code>ATTR_REFRESH_SCOPE</code>.
21   */
22  public class WorkingSetComparator implements Comparator   {
23  
24      /* (non-Javadoc)
25       * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
26       */
27      public int compare(Object   o1, Object   o2) {
28          String   one= (String  )o1;
29          String   two= (String  )o2;
30          if (one == null || two == null) {
31              if (one == two) {
32                  return 0;
33              } 
34              return -1;
35          }
36          if (one.startsWith("${working_set:") && two.startsWith("${working_set:")) {       //$NON-NLS-1$//$NON-NLS-2$
37              IWorkingSet workingSet1 = RefreshTab.getWorkingSet(one);
38              IWorkingSet workingSet2 = RefreshTab.getWorkingSet(two);
39              if (workingSet1 == null || workingSet2 == null) {
40                  if (workingSet1 == workingSet2) {
41                      return 0;
42                  } 
43                  return -1;
44              }
45              if (workingSet1.equals(workingSet2)) {
46                  return 0;
47              }
48              return -1;
49          }
50          return one.compareTo(two);
51      }
52  }
53
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