content: /*
   * Copyright (c) 2001-2004 Caucho Technology, Inc.  All rights reserved.
   *
   * The Apache Software License, Version 1.1
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. 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.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Caucho Technology (http://www.caucho.com/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "Hessian", "Resin", and "Caucho" must not be used to
   *    endorse or promote products derived from this software without prior
   *    written permission. For written permission, please contact
   *    info@caucho.com.
   *
   * 5. Products derived from this software may not be called "Resin"
   *    nor may "Resin" appear in their names without prior written
   *    permission of Caucho Technology.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 CAUCHO TECHNOLOGY OR ITS 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.
   *
   * @author Scott Ferguson
   */
  
  package com.caucho.hessian.io;
  
  import java.io.IOException;
  import java.io.OutputStream;
  import java.io.PrintWriter;
  import java.io.Writer;
  import java.util.logging.Level;
  import java.util.logging.Logger;
  
  /**
   * Debugging output stream for Hessian requests.
   */
  public class HessianDebugOutputStream extends OutputStream
  {
    private static final Logger log
      = Logger.getLogger(HessianDebugOutputStream.class.getName());
    
    private OutputStream _os;
    
    private HessianDebugState _state;
    
    /**
     * Creates an uninitialized Hessian input stream.
     */
    public HessianDebugOutputStream(OutputStream os, PrintWriter dbg)
    {
      _os = os;
  
      _state = new HessianDebugState(dbg);
    }
    
    /**
     * Creates an uninitialized Hessian input stream.
     */
    public HessianDebugOutputStream(OutputStream os, Logger log, Level level)
    {
      this(os, new PrintWriter(new LogWriter(log, level)));
    }
    
    /**
     * Creates an uninitialized Hessian input stream.
     */
    public HessianDebugOutputStream(Logger log, Level level)
    {
      this(null, new PrintWriter(new LogWriter(log, level)));
    }
    
    public void initPacket(OutputStream os)
    {
      _os = os;
    }
  
    public void startTop2()
    {
      _state.startTop2();
    }
  
    public void startStreaming()
    {
      _state.startStreaming();
    }
  
    /**
     * Writes a character.
     */
    @Override
    public void write(int ch)
      throws IOException
    {
      ch = ch & 0xff;
      
      _os.write(ch);
  
      try {
        _state.next(ch);
      } catch (Exception e) {
        log.log(Level.WARNING, e.toString(), e);
      }
    }
  
    @Override
    public void flush()
      throws IOException
    {
      _os.flush();
    }
  
    /**
     * closes the stream.
     */
    @Override
    public void close()
      throws IOException
    {
      OutputStream os = _os;
      _os = null;
  
      if (os != null) {
        _state.next(-1);
        os.close();
      }
  
      _state.println();
    }
  
    static class LogWriter extends Writer {
      private Logger _log;
      private Level _level;
      private StringBuilder _sb = new StringBuilder();
  
      LogWriter(Logger log, Level level)
      {
        _log = log;
        _level = level;
      }
  
      public void write(char ch)
      {
        if (ch == '\n' && _sb.length() > 0) {
          _log.log(_level, _sb.toString());
          _sb.setLength(0);
        }
        else
          _sb.append((char) ch);
      }
  
      public void write(char []buffer, int offset, int length)
      {
        for (int i = 0; i < length; i++) {
          char ch = buffer[offset + i];
  
          if (ch == '\n' && _sb.length() > 0) {
            _log.log(_level, _sb.toString());
            _sb.setLength(0);
          }
          else
            _sb.append((char) ch);
        }
      }
  
      public void flush()
      {
      }
  
      public void close()
      {
      }
    }
  }
  