//
// ========================================================================
// Copyright (c) 1995-2014 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.util.Callback;
import org.eclipse.jetty.util.SharedBlockingCallback;
import org.eclipse.jetty.util.SharedBlockingCallback.Blocker;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
public class HttpInputOverHTTP extends HttpInput implements Callback
{
private static final Logger LOG = Log.getLogger(HttpInputOverHTTP.class);
private final HttpConnection _httpConnection;
private Content _content;
private final SharedBlockingCallback _readBlocker;
public HttpInputOverHTTP(HttpConnection httpConnection)
{
_httpConnection = httpConnection;
_readBlocker = new SharedBlockingCallback();
}
@Override
public void recycle()
{
synchronized (lock())
{
super.recycle();
_content=null;
}
}
@Override
protected void blockForContent() throws IOException
{
while(true)
{
try (Blocker blocker=_readBlocker.acquire())
{
_httpConnection.fillInterested(blocker);
if (LOG.isDebugEnabled())
LOG.debug("{} block readable on {}",this,blocker);
blocker.block();
}
Object content=getNextContent();
if (content!=null || isFinished())
break;
}
}
@Override
public String toString()
{
return String.format("%s@%x",getClass().getSimpleName(),hashCode());
}
@Override
protected Content nextContent() throws IOException
{
// If we have some content available, return it
if (_content!=null && _content.hasContent())
return _content;
// No - then we are going to need to parse some more content
_content=null;
_httpConnection.parseContent();
// If we have some content available, return it
if (_content!=null && _content.hasContent())
return _content;
return null;
}
@Override
public void content(Content item)
{
if (_content!=null && _content.hasContent())
throw new IllegalStateException();
_content=item;
}
@Override
protected void unready()
{
_httpConnection.fillInterested(this);
}
@Override
public void succeeded()
{
_httpConnection.getHttpChannel().getState().onReadPossible();
}
@Override
public void failed(Throwable x)
{
super.failed(x);
_httpConnection.getHttpChannel().getState().onReadPossible();
}
}