/*

  * 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.

  */

 package org.apache.myfaces.shared.view;

 import java.io.IOException;

 import java.io.OutputStream;

 import javax.servlet.ServletOutputStream;

 /**

  * Delegates the standard OutputStream-methods (close, flush, write)

  * to the given ServletOutputStream, if the ResponseSwitch is enabled

  */

 class SwitchableOutputStream extends ServletOutputStream

 {

     OutputStream _delegate = null;

     ResponseSwitch _responseSwitch = null;

     public SwitchableOutputStream(ServletOutputStream delegate, ResponseSwitch responseSwitch)

     {

         _delegate = delegate;

         _responseSwitch = responseSwitch;

     }

     @Override

     public void close() throws IOException

     {

         if (_responseSwitch.isEnabled())

         {

             _delegate.close();

         }

     }

     @Override

     public void flush() throws IOException

     {

         if (_responseSwitch.isEnabled())

         {

             _delegate.flush();

         }

     }

     @Override

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

     {

         if (_responseSwitch.isEnabled())

         {

             _delegate.write(b, off, len);

         }

     }

     @Override

     public void write(byte[] b) throws IOException

     {

         if (_responseSwitch.isEnabled())

         {

             _delegate.write(b);

         }

     }

     @Override

     public void write(int b) throws IOException

     {

         if (_responseSwitch.isEnabled())

         {

             _delegate.write(b);

         }

     }

 }