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1   package org.apache.maven.scm.provider.perforce.command.remove;
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   *
36   */
37  public class PerforceRemoveConsumer
38      extends AbstractPerforceConsumer
39      implements StreamConsumer
40  {
41      private static final String FILE_BEGIN_TOKEN = "//";
42  
43      private static final String PATTERN = "^([^#]+)#\\d+ - (.*)";
44  
45      private List<ScmFile> removals = new ArrayList<ScmFile>();
46  
47      private RE revisionRegexp;
48  
49      private boolean error = false;
50  
51      public PerforceRemoveConsumer()
52      {
53          try
54          {
55              revisionRegexp = new RE( PATTERN );
56          }
57          catch ( RESyntaxException ignored )
58          {
59              ignored.printStackTrace();
60          }
61      }
62  
63      public List<ScmFile> getRemovals()
64      {
65          return removals;
66      }
67  
68      /** {@inheritDoc} */
69      public void consumeLine( String line )
70      {
71          if ( line.startsWith( "... " ) )
72          {
73              return;
74          }
75  
76          if ( !line.startsWith( FILE_BEGIN_TOKEN ) )
77          {
78              error( line );
79          }
80  
81          if ( !revisionRegexp.match( line ) )
82          {
83              error( line );
84          }
85  
86          removals.add( new ScmFile(revisionRegexp.getParen( 1 ), ScmFileStatus.DELETED ) );
87      }
88  
89      private void error( String line )
90      {
91          error = true;
92          output.println( line );
93      }
94  
95      public boolean isSuccess()
96      {
97          return !error;
98      }
99  }