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1   package org.apache.maven.scm.provider.perforce.command.checkin;
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 org.apache.regexp.RE;
23  import org.apache.regexp.RESyntaxException;
24  import org.codehaus.plexus.util.cli.StreamConsumer;
25  
26  import java.io.PrintWriter;
27  import java.io.StringWriter;
28  
29  /**
30   * @author Mike Perham
31   * @version $Id: PerforceChangeLogConsumer.java 331276 2005-11-07 15:04:54Z
32   *          evenisse $
33   */
34  public class PerforceCheckInConsumer
35      implements StreamConsumer
36  {
37      private static final String CREATED_PATTERN = "^Change \\d+ created .+$";
38  
39      private static final String SUBMITTING_PATTERN = "^Submitting change \\d+\\.$";
40  
41      private static final String LOCKING_PATTERN = "^Locking \\d+ files \\.\\.\\.$";
42  
43      private static final String OP_PATTERN = "^[a-z]+ //[^#]+#\\d+$";
44  
45      // SCM-181 Two possible messages:
46      // "Change 94821 renamed change 94823 and submitted."
47      // "Change 94821 submitted."
48      private static final String COMPLETE_PATTERN = "^Change \\d+ .*submitted.$";
49  
50      public static final int STATE_CREATED = 1;
51  
52      public static final int STATE_SUBMITTING = 2;
53  
54      public static final int STATE_LOCKING = 3;
55  
56      public static final int STATE_OP = 4;
57  
58      public static final int STATE_COMPLETE = 5;
59  
60      public static final int STATE_ERROR = 6;
61  
62      private StringWriter errors = new StringWriter();
63  
64      private PrintWriter errorOutput = new PrintWriter( errors );
65  
66      private int currentState = STATE_CREATED;
67  
68      private RE opRegexp;
69  
70      public PerforceCheckInConsumer()
71      {
72          try
73          {
74              opRegexp = new RE( OP_PATTERN );
75          }
76          catch ( RESyntaxException ignored )
77          {
78              ignored.printStackTrace();
79          }
80      }
81  
82      /*
83       * Change 80835 created with 1 open file(s). Submitting change 80835.
84       * Locking 1 files ... add //depot/modules/cordoba/runtime-ear/foo.xml#1
85       * Change 80835 submitted.
86       */
87      /*
88       * Submitting change 80837. Locking 1 files ... edit
89       * //depot/modules/cordoba/runtime-ear/Foo.java#2 Submit validation failed --
90       * fix problems then use 'p4 submit -c 80837'. 'checkstyle' validation
91       * failed:
92       *
93       * depot/modules/cordoba/runtime-ear/Foo.java:3:1: Got an exception -
94       * expecting EOF, found '}'
95       */
96      /** {@inheritDoc} */
97      public void consumeLine( String line )
98      {
99          if ( line.startsWith( "... " ) )
100         {
101             //TODO log this somehow?
102             //System.out.println("Perforce: " + line);
103             return;
104         }
105 
106         switch ( currentState )
107         {
108             case STATE_CREATED:
109                 boolean created = new RE( CREATED_PATTERN ).match( line );
110                 if ( created )
111                 {
112                     currentState++;
113                     break;
114                 }
115                 error( line );
116                 break;
117             case STATE_SUBMITTING:
118                 boolean submitting = new RE( SUBMITTING_PATTERN ).match( line );
119                 if ( submitting )
120                 {
121                     currentState++;
122                     break;
123                 }
124                 error( line );
125                 break;
126             case STATE_LOCKING:
127                 boolean locked = new RE( LOCKING_PATTERN ).match( line );
128                 if ( locked )
129                 {
130                     currentState++;
131                     break;
132                 }
133                 error( line );
134                 break;
135             case STATE_OP:
136                 boolean operation = opRegexp.match( line );
137                 if ( operation )
138                 {
139                     break;
140                 }
141                 else if ( new RE( COMPLETE_PATTERN ).match( line ) )
142                 {
143                     currentState++;
144                     break;
145                 }
146                 error( line );
147                 break;
148             case STATE_ERROR:
149                 error( line );
150                 break;
151             default:
152         }
153     }
154 
155     private void error( String line )
156     {
157         //        if (currentState != STATE_ERROR) {
158         //            System.out.println("Unable to match: " + line + " State: " +
159         // currentState);
160         //            new Exception().printStackTrace();
161         //        }
162         currentState = STATE_ERROR;
163         errorOutput.println( line );
164     }
165 
166     public boolean isSuccess()
167     {
168         return currentState == STATE_COMPLETE;
169     }
170 
171     public String getOutput()
172     {
173         errorOutput.flush();
174         errors.flush();
175         return errors.toString();
176     }
177 }