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org.eclipse.jetty.client.SelectConnector Maven / Gradle / Ivy
// ========================================================================
// Copyright (c) 2006-2009 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.client;
import java.io.IOException;
import java.net.SocketTimeoutException;
import java.nio.channels.SelectionKey;
import java.nio.channels.SocketChannel;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLSession;
import org.eclipse.jetty.http.HttpMethods;
import org.eclipse.jetty.http.HttpVersions;
import org.eclipse.jetty.http.ssl.SslSelectChannelEndPoint;
import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.io.Buffers;
import org.eclipse.jetty.io.ConnectedEndPoint;
import org.eclipse.jetty.io.Connection;
import org.eclipse.jetty.io.ThreadLocalBuffers;
import org.eclipse.jetty.io.nio.DirectNIOBuffer;
import org.eclipse.jetty.io.nio.IndirectNIOBuffer;
import org.eclipse.jetty.io.nio.SelectChannelEndPoint;
import org.eclipse.jetty.io.nio.SelectorManager;
import org.eclipse.jetty.util.component.AbstractLifeCycle;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.thread.Timeout;
class SelectConnector extends AbstractLifeCycle implements HttpClient.Connector, Runnable
{
private final HttpClient _httpClient;
private final Manager _selectorManager=new Manager();
private final Timeout _connectTimer = new Timeout();
private final Map _connectingChannels = new ConcurrentHashMap();
private SSLContext _sslContext;
private Buffers _sslBuffers;
private boolean _blockingConnect;
/**
* @param httpClient
*/
SelectConnector(HttpClient httpClient)
{
_httpClient = httpClient;
}
/* ------------------------------------------------------------ */
/** Get the blockingConnect.
* @return the blockingConnect
*/
public boolean isBlockingConnect()
{
return _blockingConnect;
}
/* ------------------------------------------------------------ */
/** Set the blockingConnect.
* @param blockingConnect If true, connections are made in blocking mode.
*/
public void setBlockingConnect(boolean blockingConnect)
{
_blockingConnect = blockingConnect;
}
/* ------------------------------------------------------------ */
@Override
protected void doStart() throws Exception
{
super.doStart();
_connectTimer.setDuration(_httpClient.getConnectTimeout());
_connectTimer.setNow();
_httpClient._threadPool.dispatch(new Runnable()
{
public void run()
{
while (isRunning())
{
_connectTimer.tick(System.currentTimeMillis());
try
{
Thread.sleep(200);
}
catch (InterruptedException x)
{
Thread.currentThread().interrupt();
break;
}
}
}
});
_selectorManager.start();
final boolean direct=_httpClient.getUseDirectBuffers();
SSLEngine sslEngine=_selectorManager.newSslEngine();
final SSLSession ssl_session=sslEngine.getSession();
ThreadLocalBuffers ssl_buffers = new ThreadLocalBuffers()
{
{
super.setBufferSize(ssl_session.getApplicationBufferSize());
super.setHeaderSize(ssl_session.getApplicationBufferSize());
}
@Override
protected Buffer newBuffer(int size)
{
return direct?new DirectNIOBuffer(size):new IndirectNIOBuffer(size);
}
@Override
protected Buffer newHeader(int size)
{
return direct?new DirectNIOBuffer(size):new IndirectNIOBuffer(size);
}
@Override
protected boolean isHeader(Buffer buffer)
{
return true;
}
@Override
public void setBufferSize(int size)
{
}
@Override
public void setHeaderSize(int size)
{
}
};
_sslBuffers=ssl_buffers;
_httpClient._threadPool.dispatch(this);
}
/* ------------------------------------------------------------ */
@Override
protected void doStop() throws Exception
{
_connectTimer.cancelAll();
_selectorManager.stop();
}
/* ------------------------------------------------------------ */
public void startConnection( HttpDestination destination )
throws IOException
{
SocketChannel channel = SocketChannel.open();
Address address = destination.isProxied() ? destination.getProxy() : destination.getAddress();
channel.configureBlocking( false );
channel.connect(address.toSocketAddress());
_selectorManager.register( channel, destination );
ConnectTimeout connectTimeout = new ConnectTimeout(channel, destination);
_connectTimer.schedule(connectTimeout);
_connectingChannels.put(channel, connectTimeout);
}
/* ------------------------------------------------------------ */
public void run()
{
while (_httpClient.isRunning())
{
try
{
_selectorManager.doSelect(0);
}
catch (Exception e)
{
Log.warn(e.toString());
Log.debug(e);
Thread.yield();
}
}
}
/* ------------------------------------------------------------ */
class Manager extends SelectorManager
{
@Override
protected SocketChannel acceptChannel(SelectionKey key) throws IOException
{
throw new IllegalStateException();
}
@Override
public boolean dispatch(Runnable task)
{
return SelectConnector.this._httpClient._threadPool.dispatch(task);
}
@Override
protected void endPointOpened(SelectChannelEndPoint endpoint)
{
}
@Override
protected void endPointClosed(SelectChannelEndPoint endpoint)
{
}
@Override
protected void endPointUpgraded(ConnectedEndPoint endpoint, Connection oldConnection)
{
}
@Override
protected Connection newConnection(SocketChannel channel, SelectChannelEndPoint endpoint)
{
if (endpoint instanceof SslSelectChannelEndPoint)
return new HttpConnection(_sslBuffers,_sslBuffers,endpoint);
return new HttpConnection(_httpClient.getRequestBuffers(),_httpClient.getResponseBuffers(),endpoint);
}
@Override
protected SelectChannelEndPoint newEndPoint(SocketChannel channel, SelectSet selectSet, SelectionKey key) throws IOException
{
// We're connected, cancel the connect timeout
Timeout.Task connectTimeout = _connectingChannels.remove(channel);
if (connectTimeout != null)
connectTimeout.cancel();
Log.debug("Channels with connection pending: {}", _connectingChannels.size());
// key should have destination at this point (will be replaced by endpoint after this call)
HttpDestination dest=(HttpDestination)key.attachment();
SelectChannelEndPoint ep=null;
if (dest.isSecure())
{
if (dest.isProxied())
{
String connect = HttpMethods.CONNECT+" "+dest.getAddress()+HttpVersions.HTTP_1_0+"\r\n\r\n";
// TODO need to send this over channel unencrypted and setup endpoint to ignore the 200 OK response.
throw new IllegalStateException("Not Implemented");
}
SSLEngine engine=newSslEngine();
ep = new SslSelectChannelEndPoint(_sslBuffers,channel,selectSet,key,engine);
}
else
{
ep=new SelectChannelEndPoint(channel,selectSet,key);
}
HttpConnection connection=(HttpConnection)ep.getConnection();
connection.setDestination(dest);
dest.onNewConnection(connection);
return ep;
}
private synchronized SSLEngine newSslEngine() throws IOException
{
if (_sslContext==null)
{
_sslContext = SelectConnector.this._httpClient.getSSLContext();
}
SSLEngine sslEngine = _sslContext.createSSLEngine();
sslEngine.setUseClientMode(true);
sslEngine.beginHandshake();
return sslEngine;
}
/* ------------------------------------------------------------ */
/* (non-Javadoc)
* @see org.eclipse.io.nio.SelectorManager#connectionFailed(java.nio.channels.SocketChannel, java.lang.Throwable, java.lang.Object)
*/
@Override
protected void connectionFailed(SocketChannel channel, Throwable ex, Object attachment)
{
if (attachment instanceof HttpDestination)
((HttpDestination)attachment).onConnectionFailed(ex);
else
super.connectionFailed(channel,ex,attachment);
}
}
private class ConnectTimeout extends Timeout.Task
{
private final SocketChannel channel;
private final HttpDestination destination;
public ConnectTimeout(SocketChannel channel, HttpDestination destination)
{
this.channel = channel;
this.destination = destination;
}
@Override
protected void expired()
{
_connectingChannels.remove(channel);
if (channel.isConnectionPending())
{
Log.debug("Channel {} timed out while connecting, closing it", channel);
try
{
// This will unregister the channel from the selector
channel.close();
}
catch (IOException x)
{
Log.ignore(x);
}
destination.onConnectionFailed(new SocketTimeoutException());
}
}
}
}
