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//
// ========================================================================
// 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.client;
import java.util.concurrent.atomic.AtomicReference;
import org.eclipse.jetty.client.api.Result;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
public abstract class HttpChannel
{
protected static final Logger LOG = Log.getLogger(HttpChannel.class);
private final AtomicReference<HttpExchange> exchange = new AtomicReference<>();
private final HttpDestination destination;
protected HttpChannel(HttpDestination destination)
{
this.destination = destination;
}
public HttpDestination getHttpDestination()
{
return destination;
}
public void associate(HttpExchange exchange)
{
if (this.exchange.compareAndSet(null, exchange))
{
exchange.associate(this);
if (LOG.isDebugEnabled())
LOG.debug("{} associated to {}", exchange, this);
}
else
{
exchange.getRequest().abort(new UnsupportedOperationException("Pipelined requests not supported"));
}
}
public HttpExchange disassociate()
{
HttpExchange exchange = this.exchange.getAndSet(null);
if (exchange != null)
exchange.disassociate(this);
if (LOG.isDebugEnabled())
LOG.debug("{} disassociated from {}", exchange, this);
return exchange;
}
public HttpExchange getHttpExchange()
{
return exchange.get();
}
public abstract void send();
public abstract void proceed(HttpExchange exchange, Throwable failure);
public abstract boolean abort(Throwable cause);
public void exchangeTerminated(Result result)
{
disassociate();
}
@Override
public String toString()
{
return String.format("%s@%h", getClass().getSimpleName(), this);
}
}
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