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();
      }
  
  }