package org.apache.maven.shared.release.exec;

 /*

  * 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.io.ByteArrayOutputStream;

 import java.io.FilterOutputStream;

 import java.io.IOException;

 import java.io.OutputStream;

 public class TeeOutputStream 

     extends FilterOutputStream 

 {

     private ByteArrayOutputStream bout = new ByteArrayOutputStream( 1024 * 8 );

     private byte indent[];

     private int last = '\n';

     public TeeOutputStream( OutputStream out )

     {

         this( out, "    " );

     }

     public TeeOutputStream( OutputStream out, String i )

     {

         super( out );

         indent = i.getBytes();

     }

     public void write( byte[] b, int off, int len )

         throws IOException

     {

         for ( int x = 0; x < len; x++ )

         {

             int c = b[off + x];

             if ( last == '\n' || ( last == '\r' && c != '\n' ) )

             {

                 out.write( b, off, x );

                 bout.write( b, off, x );

                 out.write( indent );

                 off += x;

                 len -= x;

                 x = 0;

             }

             last = c;

         }

         out.write( b, off, len );

         bout.write( b, off, len );

     }

     public void write( int b )

         throws IOException

     {

         if ( last == '\n' || ( last == '\r' && b != '\n' ) )

         {

             out.write( indent );

         }

         out.write( b );

         bout.write( b );

         last = b;

     }

     public String toString() 

     {

         return bout.toString();

     }

     public String getContent()

     {

         return bout.toString();

     }

 }