package org.apache.maven.scm.provider.perforce.command.edit;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import java.util.ArrayList;

 import java.util.List;

 import org.apache.maven.scm.ScmFile;

 import org.apache.maven.scm.ScmFileStatus;

 import org.apache.maven.scm.provider.perforce.command.AbstractPerforceConsumer;

 import org.apache.regexp.RE;

 import org.apache.regexp.RESyntaxException;

 import org.codehaus.plexus.util.cli.StreamConsumer;

 /**

  * @author Mike Perham

  * @version $Id: PerforceEditConsumer.java 1306867 2012-03-29 13:45:10Z olamy $

  */

 public class PerforceEditConsumer

     extends AbstractPerforceConsumer

     implements StreamConsumer

 {

     private static final String PATTERN = "^([^#]+)#\\d+ - (.*)";

     private static final String FILE_BEGIN_TOKEN = "//";

     private List<ScmFile> edits = new ArrayList<ScmFile>();

     private RE revisionRegexp;

     private boolean errors = false;

     private StringBuilder errorMessage = new StringBuilder();

     public PerforceEditConsumer()

     {

         try

         {

             revisionRegexp = new RE( PATTERN );

         }

         catch ( RESyntaxException ignored )

         {

             ignored.printStackTrace();

         }

     }

     public List<ScmFile> getEdits()

     {

         return edits;

     }

     /** {@inheritDoc} */

     public void consumeLine( String line )

     {

         if ( line.startsWith( "... " ) )

         {

             //Should we log this somehow?

             //System.out.println("Perforce: " + line);

             return;

         }

         if ( !line.startsWith( FILE_BEGIN_TOKEN ) )

         {

             error( line );

         }

         if ( !revisionRegexp.match( line ) )

         {

             error( line );

         }

         edits.add( new ScmFile( revisionRegexp.getParen( 1 ), ScmFileStatus.EDITED ) );

     }

     private void error( String line )

     {

         errors = true;

         output.println( line );

         if ( errorMessage.length() > 0 )

         {

             errorMessage.append( System.getProperty( "line.separator" ) );

         }

         errorMessage.append( line );

     }

     public boolean isSuccess()

     {

         return !errors;

     }

     public String getErrorMessage()

     {

         return errorMessage.toString();

     }

 }