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1   package org.apache.maven.scm.provider.perforce.command.tag;
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 PerforceTagConsumer
38      extends AbstractPerforceConsumer
39      implements StreamConsumer
40  {
41  
42      private static final String LABEL_PATTERN = "^Label ([^ ]+) saved.$";
43  
44      private static final String SYNC_PATTERN = "^([^#]+)#\\d+ - (.*)";
45  
46      public static final int STATE_CREATE = 1;
47  
48      public static final int STATE_SYNC = 2;
49  
50      public static final int STATE_ERROR = 3;
51  
52      private int currentState = STATE_CREATE;
53  
54      private List<ScmFile> tagged = new ArrayList<ScmFile>();
55  
56      private RE syncRegexp;
57  
58      public PerforceTagConsumer()
59      {
60          try
61          {
62              syncRegexp = new RE( SYNC_PATTERN );
63          }
64          catch ( RESyntaxException ignored )
65          {
66              ignored.printStackTrace();
67          }
68      }
69  
70      /**
71       * Return a list of Strings formatted like:
72       * <p/>
73       * <pre>
74       * //depot/modules/cordoba/runtime-ear/pom.xml
75       * //depot/modules/cordoba/runtime-ear/.runtime
76       * </pre>
77       */
78      public List<ScmFile> getTagged()
79      {
80          return tagged;
81      }
82  
83      /*
84       * We consume the output from 'p4 label -i' and 'p4 labelsync -l <tag>
85       * <files...>'
86       */
87      /*
88       * Label maven-scm-test saved.
89       */
90      /*
91       * //depot/modules/cordoba/runtime-ear/pom.xml#4 - added
92       * //depot/modules/cordoba/runtime-ear/.runtime#1 - added
93       */
94      /** {@inheritDoc} */
95      public void consumeLine( String line )
96      {
97          switch ( currentState )
98          {
99              case STATE_CREATE:
100                 if ( !new RE( LABEL_PATTERN ).match( line ) )
101                 {
102                     error( line );
103                     break;
104                 }
105                 currentState = STATE_SYNC;
106                 break;
107             case STATE_SYNC:
108                 if ( !syncRegexp.match( line ) )
109                 {
110                     error( line );
111                     break;
112                 }
113                 tagged.add( new ScmFile( syncRegexp.getParen( 1 ), ScmFileStatus.TAGGED ) );
114                 break;
115             default:
116                 error( line );
117                 break;
118         }
119     }
120 
121     private void error( String line )
122     {
123         currentState = STATE_ERROR;
124         output.println( line );
125     }
126 
127     public boolean isSuccess()
128     {
129         return currentState == STATE_SYNC;
130     }
131 
132 }