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1   /*
2    * Copyright 2008 Eric Caspole
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
5    * file except in compliance with the License. You may obtain a copy of the License at
6    * 
7    * http://www.apache.org/licenses/LICENSE-2.0
8    * 
9    * Unless required by applicable law or agreed to in writing, software distributed under
10   * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11   * KIND, either express or implied. See the License for the specific language governing
12   * permissions and limitations under the License.
13   */
14  
15  package net.sf.madmap;
16  
17  import java.util.Comparator;
18  
19  public class RootComparator implements Comparator {
20  
21    String  _root_sort;
22  
23    public RootComparator( String sortKind ) {
24      _root_sort = sortKind;
25    }
26  
27    public int compare( Object aa, Object bb ) {
28      
29      HprofRoot a = (HprofRoot) aa;
30      HprofRoot b = (HprofRoot) bb;
31  
32      String ra = a.rootType();
33      String rb = b.rootType();
34  
35      if (ra.equals(_root_sort) && (!rb.equals(_root_sort))) {
36        return -1;
37      } else if (( ra == rb ) || (!ra.equals(_root_sort) && (!rb.equals(_root_sort)))){
38        return 0; 
39      } else {
40        return 1;
41      }
42    }
43  }