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1   package org.apache.maven.scm.provider.perforce.command.unedit;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   * http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.util.ArrayList;
23  import java.util.List;
24  
25  import org.apache.maven.scm.ScmFile;
26  import org.apache.maven.scm.ScmFileStatus;
27  import org.apache.maven.scm.provider.perforce.command.AbstractPerforceConsumer;
28  import org.apache.regexp.RE;
29  import org.apache.regexp.RESyntaxException;
30  import org.codehaus.plexus.util.cli.StreamConsumer;
31  
32  /**
33   * @author Mike Perham
34   * @author Olivier Lamy
35   * @version $Id: PerforceChangeLogConsumer.java 331276 2005-11-07 15:04:54Z
36   *          evenisse $
37   */
38  public class PerforceUnEditConsumer
39      extends AbstractPerforceConsumer
40      implements StreamConsumer
41  {
42  
43      private static final String PATTERN = "^([^#]+)#\\d+ - (.*)";
44  
45      private static final int STATE_NORMAL = 1;
46  
47      private static final int STATE_ERROR = 2;
48  
49      private int currentState = STATE_NORMAL;
50  
51      private List<ScmFile> edits = new ArrayList<ScmFile>();
52  
53      private RE revisionRegexp;
54  
55      public PerforceUnEditConsumer()
56      {
57          try
58          {
59              revisionRegexp = new RE( PATTERN );
60          }
61          catch ( RESyntaxException ignored )
62          {
63              ignored.printStackTrace();
64          }
65      }
66  
67      public List<ScmFile> getEdits()
68      {
69          return edits;
70      }
71  
72      /** {@inheritDoc} */
73      public void consumeLine( String line )
74      {
75          if ( currentState != STATE_ERROR && revisionRegexp.match( line ) )
76          {
77              edits.add( new ScmFile(revisionRegexp.getParen( 1 ), ScmFileStatus.UNKNOWN ) );
78              return;
79          }
80  
81          error( line );
82      }
83  
84      private void error( String line )
85      {
86          currentState = STATE_ERROR;
87          output.println( line );
88      }
89  
90      public boolean isSuccess()
91      {
92          return currentState == STATE_NORMAL;
93      }
94  }