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1   package org.apache.maven.scm.provider.cvslib.command.blame;
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.Date;
24  import java.util.List;
25  import java.util.Locale;
26  
27  import org.apache.maven.scm.command.blame.BlameLine;
28  import org.apache.maven.scm.log.ScmLogger;
29  import org.apache.maven.scm.util.AbstractConsumer;
30  import org.apache.regexp.RE;
31  
32  /**
33   * @author Evgeny Mandrikov
34   * @author Olivier Lamy
35   * @since 1.4
36   */
37  public class CvsBlameConsumer
38      extends AbstractConsumer
39  {
40      private static final String CVS_TIMESTAMP_PATTERN = "dd-MMM-yy";
41  
42      /* 1.1          (tor      24-Mar-03): */
43  
44      private static final String LINE_PATTERN = "(.*)\\((.*)\\s+(.*)\\)";
45  
46      /**
47       * @see #LINE_PATTERN
48       */
49      private RE lineRegexp;
50  
51      private List<BlameLine> lines = new ArrayList<BlameLine>();
52  
53      public CvsBlameConsumer( ScmLogger logger )
54      {
55          super( logger );
56  
57          lineRegexp = new RE( LINE_PATTERN );
58      }
59  
60      public void consumeLine( String line )
61      {
62          if (line != null && line.indexOf( ':' ) > 0 )
63          {
64              String annotation = line.substring( 0, line.indexOf( ':' ) );
65              if ( lineRegexp.match( annotation ) )
66              {
67                  String revision = lineRegexp.getParen( 1 ).trim();
68                  String author = lineRegexp.getParen( 2 ).trim();
69                  String dateTimeStr = lineRegexp.getParen( 3 ).trim();
70  
71                  Date dateTime = parseDate( dateTimeStr, null, CVS_TIMESTAMP_PATTERN, Locale.US );
72                  lines.add( new BlameLine( dateTime, revision, author ) );
73  
74                  if ( getLogger().isDebugEnabled() )
75                  {
76                      getLogger().debug( author + " " + dateTimeStr );
77                  }
78              }
79          }
80      }
81  
82      public List<BlameLine> getLines()
83      {
84          return lines;
85      }
86  
87  }