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

 /*

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

 import java.io.PrintWriter;

 import java.io.StringWriter;

 /**

  * @author Mike Perham

  * @version $Id: PerforceChangeLogConsumer.java 331276 2005-11-07 15:04:54Z

  *          evenisse $

  */

 public class PerforceDiffConsumer

     implements StreamConsumer

 {

     private StringWriter out = new StringWriter();

     private PrintWriter output = new PrintWriter( out );

     /*

      * I don't see any easy way to distinguish between an error and

      * normal diff output.  I see two possibilities:

      *

      * 1) Use the p4 global "-s" parameter

      * 2) Check for a non-zero code returned by the p4 process

      *

      * We'll do the latter as it's simpler to implement.

      */

     /** {@inheritDoc} */

     public void consumeLine( String line )

     {

         output.println( line );

     }

     public String getOutput()

     {

         output.flush();

         out.flush();

         return out.toString();

     }

 }