001package org.apache.maven.scm.provider.perforce.command.checkin;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.apache.regexp.RE;
023import org.apache.regexp.RESyntaxException;
024import org.codehaus.plexus.util.cli.StreamConsumer;
025
026import java.io.PrintWriter;
027import java.io.StringWriter;
028
029/**
030 * @author Mike Perham
031 * @version $Id: PerforceChangeLogConsumer.java 331276 2005-11-07 15:04:54Z
032 *          evenisse $
033 */
034public class PerforceCheckInConsumer
035    implements StreamConsumer
036{
037    private static final String CREATED_PATTERN = "^Change \\d+ created .+$";
038
039    private static final String SUBMITTING_PATTERN = "^Submitting change \\d+\\.$";
040
041    private static final String LOCKING_PATTERN = "^Locking \\d+ files \\.\\.\\.$";
042
043    private static final String OP_PATTERN = "^[a-z]+ //[^#]+#\\d+$";
044
045    // SCM-181 Two possible messages:
046    // "Change 94821 renamed change 94823 and submitted."
047    // "Change 94821 submitted."
048    private static final String COMPLETE_PATTERN = "^Change \\d+ .*submitted.$";
049
050    public static final int STATE_CREATED = 1;
051
052    public static final int STATE_SUBMITTING = 2;
053
054    public static final int STATE_LOCKING = 3;
055
056    public static final int STATE_OP = 4;
057
058    public static final int STATE_COMPLETE = 5;
059
060    public static final int STATE_ERROR = 6;
061
062    private StringWriter errors = new StringWriter();
063
064    private PrintWriter errorOutput = new PrintWriter( errors );
065
066    private int currentState = STATE_CREATED;
067
068    private RE opRegexp;
069
070    public PerforceCheckInConsumer()
071    {
072        try
073        {
074            opRegexp = new RE( OP_PATTERN );
075        }
076        catch ( RESyntaxException ignored )
077        {
078            ignored.printStackTrace();
079        }
080    }
081
082    /*
083     * Change 80835 created with 1 open file(s). Submitting change 80835.
084     * Locking 1 files ... add //depot/modules/cordoba/runtime-ear/foo.xml#1
085     * Change 80835 submitted.
086     */
087    /*
088     * Submitting change 80837. Locking 1 files ... edit
089     * //depot/modules/cordoba/runtime-ear/Foo.java#2 Submit validation failed --
090     * fix problems then use 'p4 submit -c 80837'. 'checkstyle' validation
091     * failed:
092     *
093     * depot/modules/cordoba/runtime-ear/Foo.java:3:1: Got an exception -
094     * expecting EOF, found '}'
095     */
096    /** {@inheritDoc} */
097    public void consumeLine( String line )
098    {
099        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}