org.eclipse.jetty.server.BlockingHttpConnection Maven / Gradle / Ivy
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.AsyncEndPoint;
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;
public class BlockingHttpConnection extends HttpConnection
{
private static final Logger LOG = Log.getLogger(BlockingHttpConnection.class);
private volatile boolean _handling;
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);
}
public Connection handle() throws IOException
{
Connection connection = this;
// Loop while more in buffer
boolean more_in_buffer =true; // assume true until proven otherwise
try
{
setCurrentConnection(this);
while (more_in_buffer && _endp.isOpen())
{
try
{
// If we are not ended then parse available
if (!_parser.isComplete())
_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.
while (_generator.isCommitted() && !_generator.isComplete())
{
long written=_generator.flushBuffer();
if (written<=0)
break;
if (_endp.isBufferingOutput())
_endp.flush();
}
// Flush buffers
if (_endp.isBufferingOutput())
_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
{
more_in_buffer = _parser.isMoreInBuffer() || _endp.isBufferingInput();
// Is this request/response round complete?
if (_parser.isComplete() && _generator.isComplete() && !_endp.isBufferingOutput())
{
// look for a switched connection instance?
Connection switched=(_response.getStatus()==HttpStatus.SWITCHING_PROTOCOLS_101)
?(Connection)_request.getAttribute("org.eclipse.jetty.io.Connection"):null;
// have we switched?
if (switched!=null)
{
_parser.reset();
_generator.reset(true);
connection=switched;
}
else
{
// No switch, so cleanup and reset
if (!_generator.isPersistent() || _endp.isInputShutdown())
{
_parser.reset();
more_in_buffer=false;
_endp.close();
}
if (more_in_buffer)
{
reset(false);
more_in_buffer = _parser.isMoreInBuffer() || _endp.isBufferingInput();
}
else
reset(true);
}
}
else if (_parser.isIdle() && _endp.isInputShutdown())
{
more_in_buffer=false;
_endp.close();
}
if (_request.isAsyncStarted())
throw new IllegalStateException();
}
}
}
finally
{
_parser.returnBuffers();
setCurrentConnection(null);
_handling=false;
}
return connection;
}
}