org.eclipse.jetty.client.SelectConnector Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2013 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.nio.channels.UnresolvedAddressException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.net.ssl.SSLEngine;
import org.eclipse.jetty.io.AsyncEndPoint;
import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.io.ConnectedEndPoint;
import org.eclipse.jetty.io.Connection;
import org.eclipse.jetty.io.nio.AsyncConnection;
import org.eclipse.jetty.io.nio.SelectChannelEndPoint;
import org.eclipse.jetty.io.nio.SelectorManager;
import org.eclipse.jetty.io.nio.SslConnection;
import org.eclipse.jetty.util.component.AggregateLifeCycle;
import org.eclipse.jetty.util.component.Dumpable;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.ssl.SslContextFactory;
import org.eclipse.jetty.util.thread.Timeout;
import org.eclipse.jetty.util.thread.Timeout.Task;
class SelectConnector extends AggregateLifeCycle implements HttpClient.Connector, Dumpable
{
private static final Logger LOG = Log.getLogger(SelectConnector.class);
private final HttpClient _httpClient;
private final Manager _selectorManager=new Manager();
private final Map _connectingChannels = new ConcurrentHashMap();
/* ------------------------------------------------------------ */
/**
* @param httpClient the HttpClient this connector is associated to. It is
* added via the {@link #addBean(Object, boolean)} as an unmanaged bean.
*/
SelectConnector(HttpClient httpClient)
{
_httpClient = httpClient;
addBean(_httpClient,false);
addBean(_selectorManager,true);
}
/* ------------------------------------------------------------ */
public void startConnection( HttpDestination destination )
throws IOException
{
SocketChannel channel = null;
try
{
channel = SocketChannel.open();
Address address = destination.isProxied() ? destination.getProxy() : destination.getAddress();
channel.socket().setTcpNoDelay(true);
if (_httpClient.isConnectBlocking())
{
channel.socket().connect(address.toSocketAddress(), _httpClient.getConnectTimeout());
channel.configureBlocking(false);
_selectorManager.register( channel, destination );
}
else
{
channel.configureBlocking(false);
channel.connect(address.toSocketAddress());
_selectorManager.register(channel,destination);
ConnectTimeout connectTimeout = new ConnectTimeout(channel,destination);
_httpClient.schedule(connectTimeout,_httpClient.getConnectTimeout());
_connectingChannels.put(channel,connectTimeout);
}
}
catch (UnresolvedAddressException ex)
{
if (channel != null)
channel.close();
destination.onConnectionFailed(ex);
}
catch(IOException ex)
{
if (channel != null)
channel.close();
destination.onConnectionFailed(ex);
}
}
/* ------------------------------------------------------------ */
class Manager extends SelectorManager
{
Logger LOG = SelectConnector.LOG;
@Override
public boolean dispatch(Runnable task)
{
return _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
public AsyncConnection newConnection(SocketChannel channel, AsyncEndPoint endpoint, Object attachment)
{
return new AsyncHttpConnection(_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();
if (LOG.isDebugEnabled())
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 scep = new SelectChannelEndPoint(channel, selectSet, key, (int)_httpClient.getIdleTimeout());
AsyncEndPoint ep = scep;
if (dest.isSecure())
{
LOG.debug("secure to {}, proxied={}",channel,dest.isProxied());
ep = new UpgradableEndPoint(ep,newSslEngine(dest.getSslContextFactory(), channel));
}
AsyncConnection connection = selectSet.getManager().newConnection(channel,ep, key.attachment());
ep.setConnection(connection);
AbstractHttpConnection httpConnection=(AbstractHttpConnection)connection;
httpConnection.setDestination(dest);
if (dest.isSecure() && !dest.isProxied())
((UpgradableEndPoint)ep).upgrade();
dest.onNewConnection(httpConnection);
return scep;
}
private synchronized SSLEngine newSslEngine(SslContextFactory sslContextFactory, SocketChannel channel) throws IOException
{
SSLEngine sslEngine;
if (channel != null)
{
String peerHost = channel.socket().getInetAddress().getHostAddress();
int peerPort = channel.socket().getPort();
sslEngine = sslContextFactory.newSslEngine(peerHost, peerPort);
}
else
{
sslEngine = sslContextFactory.newSslEngine();
}
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)
{
Timeout.Task connectTimeout = _connectingChannels.remove(channel);
if (connectTimeout != null)
connectTimeout.cancel();
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
public void expired()
{
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());
}
}
}
public static class UpgradableEndPoint implements AsyncEndPoint
{
AsyncEndPoint _endp;
SSLEngine _engine;
public UpgradableEndPoint(AsyncEndPoint endp, SSLEngine engine) throws IOException
{
_engine=engine;
_endp=endp;
}
public void upgrade()
{
AsyncHttpConnection connection = (AsyncHttpConnection)_endp.getConnection();
SslConnection sslConnection = new SslConnection(_engine,_endp);
_endp.setConnection(sslConnection);
_endp=sslConnection.getSslEndPoint();
sslConnection.getSslEndPoint().setConnection(connection);
LOG.debug("upgrade {} to {} for {}",this,sslConnection,connection);
}
public Connection getConnection()
{
return _endp.getConnection();
}
public void setConnection(Connection connection)
{
_endp.setConnection(connection);
}
public void shutdownOutput() throws IOException
{
_endp.shutdownOutput();
}
public void dispatch()
{
_endp.asyncDispatch();
}
public void asyncDispatch()
{
_endp.asyncDispatch();
}
public boolean isOutputShutdown()
{
return _endp.isOutputShutdown();
}
public void shutdownInput() throws IOException
{
_endp.shutdownInput();
}
public void scheduleWrite()
{
_endp.scheduleWrite();
}
public boolean isInputShutdown()
{
return _endp.isInputShutdown();
}
public void close() throws IOException
{
_endp.close();
}
public int fill(Buffer buffer) throws IOException
{
return _endp.fill(buffer);
}
public boolean isWritable()
{
return _endp.isWritable();
}
public boolean hasProgressed()
{
return _endp.hasProgressed();
}
public int flush(Buffer buffer) throws IOException
{
return _endp.flush(buffer);
}
public void scheduleTimeout(Task task, long timeoutMs)
{
_endp.scheduleTimeout(task,timeoutMs);
}
public void cancelTimeout(Task task)
{
_endp.cancelTimeout(task);
}
public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException
{
return _endp.flush(header,buffer,trailer);
}
public String getLocalAddr()
{
return _endp.getLocalAddr();
}
public String getLocalHost()
{
return _endp.getLocalHost();
}
public int getLocalPort()
{
return _endp.getLocalPort();
}
public String getRemoteAddr()
{
return _endp.getRemoteAddr();
}
public String getRemoteHost()
{
return _endp.getRemoteHost();
}
public int getRemotePort()
{
return _endp.getRemotePort();
}
public boolean isBlocking()
{
return _endp.isBlocking();
}
public boolean blockReadable(long millisecs) throws IOException
{
return _endp.blockReadable(millisecs);
}
public boolean blockWritable(long millisecs) throws IOException
{
return _endp.blockWritable(millisecs);
}
public boolean isOpen()
{
return _endp.isOpen();
}
public Object getTransport()
{
return _endp.getTransport();
}
public void flush() throws IOException
{
_endp.flush();
}
public int getMaxIdleTime()
{
return _endp.getMaxIdleTime();
}
public void setMaxIdleTime(int timeMs) throws IOException
{
_endp.setMaxIdleTime(timeMs);
}
public void onIdleExpired(long idleForMs)
{
_endp.onIdleExpired(idleForMs);
}
public void setCheckForIdle(boolean check)
{
_endp.setCheckForIdle(check);
}
public boolean isCheckForIdle()
{
return _endp.isCheckForIdle();
}
public String toString()
{
return "Upgradable:"+_endp.toString();
}
}
}
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