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1   //////////////////////////////////////////////////////////////////////////////
2   // Clirr: compares two versions of a java library for binary compatibility
3   // Copyright (C) 2003 - 2005  Lars Kühne
4   //
5   // This library is free software; you can redistribute it and/or
6   // modify it under the terms of the GNU Lesser General Public
7   // License as published by the Free Software Foundation; either
8   // version 2.1 of the License, or (at your option) any later version.
9   //
10  // This library is distributed in the hope that it will be useful,
11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  // Lesser General Public License for more details.
14  //
15  // You should have received a copy of the GNU Lesser General Public
16  // License along with this library; if not, write to the Free Software
17  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  //////////////////////////////////////////////////////////////////////////////
19  
20  package net.sf.clirr.core.internal.checks;
21  
22  import net.sf.clirr.core.Severity;
23  import net.sf.clirr.core.Message;
24  import net.sf.clirr.core.internal.AbstractDiffReporter;
25  import net.sf.clirr.core.internal.ApiDiffDispatcher;
26  import net.sf.clirr.core.internal.ClassChangeCheck;
27  import net.sf.clirr.core.spi.JavaType;
28  
29  /***
30   * Detects gender changes (a class became an interface or vice versa).
31   *
32   * @author lkuehne
33   */
34  public final class GenderChangeCheck
35      extends AbstractDiffReporter
36      implements ClassChangeCheck
37  {
38      private static final Message MSG_GENDER_CLASS_TO_INTERFACE = new Message(2000);
39      private static final Message MSG_GENDER_INTERFACE_TO_CLASS = new Message(2001);
40  
41      /***
42       * Create a new instance of this check.
43       * @param dispatcher the diff dispatcher that distributes the detected changes to the listeners.
44       */
45      public GenderChangeCheck(ApiDiffDispatcher dispatcher)
46      {
47          super(dispatcher);
48      }
49  
50  
51      /*** {@inheritDoc} */
52      public boolean check(JavaType baseLine, JavaType current)
53      {
54          if (!baseLine.isInterface() && current.isInterface())
55          {
56              log(MSG_GENDER_CLASS_TO_INTERFACE,
57                  getSeverity(baseLine, Severity.ERROR),
58                  baseLine.getName(), null, null, null);
59          }
60          else if (baseLine.isInterface() && !current.isInterface())
61          {
62              log(MSG_GENDER_INTERFACE_TO_CLASS,
63                  getSeverity(baseLine, Severity.ERROR),
64                  baseLine.getName(), null, null, null);
65          }
66  
67          return true;
68      }
69  }