// ========================================================================
// Copyright (c) 2006-2011 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
package org.eclipse.jetty.server;
import java.io.IOException;
import org.eclipse.jetty.http.Generator;
import org.eclipse.jetty.http.HttpException;
import org.eclipse.jetty.http.HttpStatus;
import org.eclipse.jetty.http.Parser;
import org.eclipse.jetty.io.Connection;
import org.eclipse.jetty.io.EndPoint;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
/* ------------------------------------------------------------ */
/** Blocking Server HTTP Connection
*/
public class BlockingHttpConnection extends AbstractHttpConnection
{
private static final Logger LOG = Log.getLogger(BlockingHttpConnection.class);
public BlockingHttpConnection(Connector connector, EndPoint endpoint, Server server)
{
super(connector,endpoint,server);
}
public BlockingHttpConnection(Connector connector, EndPoint endpoint, Server server, Parser parser, Generator generator, Request request)
{
super(connector,endpoint,server,parser,generator,request);
}
@Override
protected void handleRequest() throws IOException
{
super.handleRequest();
}
public Connection handle() throws IOException
{
Connection connection = this;
try
{
setCurrentConnection(this);
// do while the endpoint is open
// AND the connection has not changed
while (_endp.isOpen() && connection==this)
{
try
{
// If we are not ended then parse available
if (!_parser.isComplete() && !_endp.isInputShutdown())
_parser.parseAvailable();
// Do we have more generating to do?
// Loop here because some writes may take multiple steps and
// we need to flush them all before potentially blocking in the
// next loop.
if (_generator.isCommitted() && !_generator.isComplete() && !_endp.isOutputShutdown())
_generator.flushBuffer();
// Flush buffers
_endp.flush();
}
catch (HttpException e)
{
if (LOG.isDebugEnabled())
{
LOG.debug("uri="+_uri);
LOG.debug("fields="+_requestFields);
LOG.debug(e);
}
_generator.sendError(e.getStatus(), e.getReason(), null, true);
_parser.reset();
_endp.shutdownOutput();
}
finally
{
// Is this request/response round complete and are fully flushed?
if (_parser.isComplete() && _generator.isComplete())
{
// Reset the parser/generator
reset();
// look for a switched connection instance?
if (_response.getStatus()==HttpStatus.SWITCHING_PROTOCOLS_101)
{
Connection switched=(Connection)_request.getAttribute("org.eclipse.jetty.io.Connection");
if (switched!=null)
connection=switched;
}
// TODO Is this required?
if (!_generator.isPersistent() && !_endp.isOutputShutdown())
{
LOG.warn("Safety net oshut!!! Please open a bugzilla");
_endp.shutdownOutput();
}
}
// If we don't have a committed response and we are not suspended
if (_endp.isInputShutdown() && _generator.isIdle() && !_request.getAsyncContinuation().isSuspended())
{
// then no more can happen, so close.
_endp.close();
}
}
}
return connection;
}
finally
{
setCurrentConnection(null);
_parser.returnBuffers();
_generator.returnBuffers();
}
}
}