package org.apache.maven.it.util.cli;

 /*

  * The MIT License

  *

  * Copyright (c) 2004, The Codehaus

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

  * the Software without restriction, including without limitation the rights to

  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies

  * of the Software, and to permit persons to whom the Software is furnished to do

  * so, subject to the following conditions:

  *

  * The above copyright notice and this permission notice shall be included in all

  * copies or substantial portions of the Software.

  *

  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

  * SOFTWARE.

  */

 /********************************************************************************

  * CruiseControl, a Continuous Integration Toolkit

  * Copyright (c) 2001-2003, ThoughtWorks, Inc.

  * 651 W Washington Ave. Suite 500

  * Chicago, IL 60661 USA

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  *

  *     + Redistributions of source code must retain the above copyright

  *       notice, this list of conditions and the following disclaimer.

  *

  *     + Redistributions in binary form must reproduce the above

  *       copyright notice, this list of conditions and the following

  *       disclaimer in the documentation and/or other materials provided

  *       with the distribution.

  *

  *     + Neither the name of ThoughtWorks, Inc., CruiseControl, nor the

  *       names of its contributors may be used to endorse or promote

  *       products derived from this software without specific prior

  *       written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR

  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  ********************************************************************************/

 /* ====================================================================

  * Copyright 2003-2004 The Apache Software Foundation.

  *

  * Licensed 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.apache.maven.it.util.IOUtil;

 import java.io.BufferedReader;

 import java.io.InputStream;

 import java.io.InputStreamReader;

 import java.io.PrintWriter;

 /**

  * Class to pump the error stream during Process's runtime. Copied from the Ant

  * built-in task.

  *

  * @author <a href="mailto:fvancea@maxiq.com">Florin Vancea </a>

  * @author <a href="mailto:pj@thoughtworks.com">Paul Julius </a>

  * @since June 11, 2001

  */

 public class StreamPumper

     extends Thread

 {

     private BufferedReader in;

     private StreamConsumer consumer = null;

     private PrintWriter out = null;

     private static final int SIZE = 1024;

     boolean done;

     public StreamPumper( InputStream in )

     {

         this.in = new BufferedReader( new InputStreamReader( in ), SIZE );

     }

     public StreamPumper( InputStream in, StreamConsumer consumer )

     {

         this( in );

         this.consumer = consumer;

     }

     public StreamPumper( InputStream in, PrintWriter writer )

     {

         this( in );

         out = writer;

     }

     public StreamPumper( InputStream in, PrintWriter writer, StreamConsumer consumer )

     {

         this( in );

         this.out = writer;

         this.consumer = consumer;

     }

     public void run()

     {

         try

         {

             String s = in.readLine();

             while ( s != null )

             {

                 consumeLine( s );

                 if ( out != null )

                 {

                     out.println( s );

                     out.flush();

                 }

                 s = in.readLine();

             }

         }

         catch ( Throwable e )

         {

             // Catched everything so the streams will be closed and flagged as done.

         }

         finally

         {

             IOUtil.close( in );

             synchronized ( this )

             {

                 done = true;

                 this.notifyAll();

             }

         }

     }

     public void flush()

     {

         if ( out != null )

         {

             out.flush();

         }

     }

     public void close()

     {

         IOUtil.close( out );

     }

     public boolean isDone()

     {

         return done;

     }

     private void consumeLine( String line )

     {

         if ( consumer != null )

         {

             consumer.consumeLine( line );

         }

     }

 }