/*
 * 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 "Burlap", "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.client;

import java.net.URL;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;

Internal connection to a server.  The default connection is based on
java.net
/**
 * Internal connection to a server.  The default connection is based on
 * java.net
 */
abstract public class AbstractHessianConnection implements HessianConnection {
  
Adds HTTP headers.
/**
   * Adds HTTP headers.
   */
  public void addHeader(String key, String value)
  {
  }
  
  
Returns the output stream for the request.
/**
   * Returns the output stream for the request.
   */
  abstract public OutputStream getOutputStream()
    throws IOException;

  
Sends the query
/**
   * Sends the query
   */
  abstract public void sendRequest()
    throws IOException;

  
Returns the status code.
/**
   * Returns the status code.
   */
  abstract public int getStatusCode();

  
Returns the status string.
/**
   * Returns the status string.
   */
  abstract public String getStatusMessage();

  
Returns the InputStream to the result
/**
   * Returns the InputStream to the result
   */
  abstract public InputStream getInputStream()
    throws IOException;

  @Override
  public String getContentEncoding()
  {
    return null;
  }
  
  
Close/free the connection, using keepalive if appropriate.
/**
   * Close/free the connection, using keepalive if appropriate.
   */
  public void close()
    throws IOException
  {
    destroy();
  }

  
Destroy/disconnect the connection
/**
   * Destroy/disconnect the connection
   */
  abstract public void destroy()
    throws IOException;
}