org.eclipse.jetty.client.http.HttpSenderOverHTTP Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.client.http;
import java.nio.ByteBuffer;
import org.eclipse.jetty.client.HttpClient;
import org.eclipse.jetty.client.HttpExchange;
import org.eclipse.jetty.client.HttpRequest;
import org.eclipse.jetty.client.HttpRequestException;
import org.eclipse.jetty.client.HttpSender;
import org.eclipse.jetty.client.api.Request;
import org.eclipse.jetty.http.HttpGenerator;
import org.eclipse.jetty.http.HttpURI;
import org.eclipse.jetty.http.MetaData;
import org.eclipse.jetty.io.ByteBufferPool;
import org.eclipse.jetty.io.EndPoint;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.IteratingCallback;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HttpSenderOverHTTP extends HttpSender
{
private static final Logger LOG = LoggerFactory.getLogger(HttpSenderOverHTTP.class);
private final IteratingCallback headersCallback = new HeadersCallback();
private final IteratingCallback contentCallback = new ContentCallback();
private final HttpGenerator generator = new HttpGenerator();
private MetaData.Request metaData;
private ByteBuffer contentBuffer;
private boolean lastContent;
private Callback callback;
private boolean shutdown;
public HttpSenderOverHTTP(HttpChannelOverHTTP channel)
{
super(channel);
}
@Override
public HttpChannelOverHTTP getHttpChannel()
{
return (HttpChannelOverHTTP)super.getHttpChannel();
}
@Override
protected void sendHeaders(HttpExchange exchange, ByteBuffer contentBuffer, boolean lastContent, Callback callback)
{
try
{
this.contentBuffer = contentBuffer;
this.lastContent = lastContent;
this.callback = callback;
HttpRequest request = exchange.getRequest();
Request.Content requestContent = request.getBody();
long contentLength = requestContent == null ? -1 : requestContent.getLength();
String path = request.getPath();
String query = request.getQuery();
if (query != null)
path += "?" + query;
metaData = new MetaData.Request(request.getMethod(), HttpURI.from(path), request.getVersion(), request.getHeaders(), contentLength, request.getTrailers());
if (LOG.isDebugEnabled())
LOG.debug("Sending headers with content {} last={} for {}", BufferUtil.toDetailString(contentBuffer), lastContent, exchange.getRequest());
headersCallback.iterate();
}
catch (Throwable x)
{
if (LOG.isDebugEnabled())
LOG.debug("Unable to send headers on exchange {}", exchange, x);
callback.failed(x);
}
}
@Override
protected void sendContent(HttpExchange exchange, ByteBuffer contentBuffer, boolean lastContent, Callback callback)
{
try
{
this.contentBuffer = contentBuffer;
this.lastContent = lastContent;
this.callback = callback;
if (LOG.isDebugEnabled())
LOG.debug("Sending content {} last={} for {}", BufferUtil.toDetailString(contentBuffer), lastContent, exchange.getRequest());
contentCallback.iterate();
}
catch (Throwable x)
{
if (LOG.isDebugEnabled())
LOG.debug("Unable to send content on {}", exchange, x);
callback.failed(x);
}
}
@Override
protected void reset()
{
headersCallback.reset();
contentCallback.reset();
generator.reset();
super.reset();
}
@Override
protected void dispose()
{
generator.abort();
super.dispose();
shutdownOutput();
}
private void shutdownOutput()
{
if (LOG.isDebugEnabled())
LOG.debug("Request shutdown output {}", getHttpExchange().getRequest());
shutdown = true;
}
protected boolean isShutdown()
{
return shutdown;
}
@Override
public String toString()
{
return String.format("%s[%s]", super.toString(), generator);
}
private class HeadersCallback extends IteratingCallback
{
private ByteBuffer headerBuffer;
private ByteBuffer chunkBuffer;
private boolean generated;
private HeadersCallback()
{
super(false);
}
@Override
protected Action process() throws Exception
{
HttpClient httpClient = getHttpChannel().getHttpDestination().getHttpClient();
HttpExchange exchange = getHttpExchange();
ByteBufferPool byteBufferPool = httpClient.getByteBufferPool();
boolean useDirectByteBuffers = httpClient.isUseOutputDirectByteBuffers();
while (true)
{
HttpGenerator.Result result = generator.generateRequest(metaData, headerBuffer, chunkBuffer, contentBuffer, lastContent);
if (LOG.isDebugEnabled())
LOG.debug("Generated headers ({} bytes), chunk ({} bytes), content ({} bytes) - {}/{} for {}",
headerBuffer == null ? -1 : headerBuffer.remaining(),
chunkBuffer == null ? -1 : chunkBuffer.remaining(),
contentBuffer == null ? -1 : contentBuffer.remaining(),
result, generator, exchange.getRequest());
switch (result)
{
case NEED_HEADER:
{
headerBuffer = byteBufferPool.acquire(httpClient.getRequestBufferSize(), useDirectByteBuffers);
break;
}
case HEADER_OVERFLOW:
{
httpClient.getByteBufferPool().release(headerBuffer);
headerBuffer = null;
throw new IllegalArgumentException("Request header too large");
}
case NEED_CHUNK:
{
chunkBuffer = byteBufferPool.acquire(HttpGenerator.CHUNK_SIZE, useDirectByteBuffers);
break;
}
case NEED_CHUNK_TRAILER:
{
chunkBuffer = byteBufferPool.acquire(httpClient.getRequestBufferSize(), useDirectByteBuffers);
break;
}
case FLUSH:
{
EndPoint endPoint = getHttpChannel().getHttpConnection().getEndPoint();
if (headerBuffer == null)
headerBuffer = BufferUtil.EMPTY_BUFFER;
if (chunkBuffer == null)
chunkBuffer = BufferUtil.EMPTY_BUFFER;
if (contentBuffer == null)
contentBuffer = BufferUtil.EMPTY_BUFFER;
long bytes = headerBuffer.remaining() + chunkBuffer.remaining() + contentBuffer.remaining();
getHttpChannel().getHttpConnection().addBytesOut(bytes);
endPoint.write(this, headerBuffer, chunkBuffer, contentBuffer);
generated = true;
return Action.SCHEDULED;
}
case SHUTDOWN_OUT:
{
shutdownOutput();
return Action.SUCCEEDED;
}
case CONTINUE:
{
if (generated)
return Action.SUCCEEDED;
break;
}
case DONE:
{
if (generated)
return Action.SUCCEEDED;
// The headers have already been generated by some
// other thread, perhaps by a concurrent abort().
throw new HttpRequestException("Could not generate headers", exchange.getRequest());
}
default:
{
throw new IllegalStateException(result.toString());
}
}
}
}
@Override
public void succeeded()
{
release();
super.succeeded();
}
@Override
public void failed(Throwable x)
{
release();
super.failed(x);
}
@Override
protected void onCompleteSuccess()
{
super.onCompleteSuccess();
callback.succeeded();
}
@Override
protected void onCompleteFailure(Throwable cause)
{
super.onCompleteFailure(cause);
callback.failed(cause);
}
private void release()
{
HttpClient httpClient = getHttpChannel().getHttpDestination().getHttpClient();
ByteBufferPool bufferPool = httpClient.getByteBufferPool();
if (!BufferUtil.isTheEmptyBuffer(headerBuffer))
bufferPool.release(headerBuffer);
headerBuffer = null;
if (!BufferUtil.isTheEmptyBuffer(chunkBuffer))
bufferPool.release(chunkBuffer);
chunkBuffer = null;
contentBuffer = null;
}
}
private class ContentCallback extends IteratingCallback
{
private ByteBuffer chunkBuffer;
public ContentCallback()
{
super(false);
}
@Override
protected Action process() throws Exception
{
HttpClient httpClient = getHttpChannel().getHttpDestination().getHttpClient();
ByteBufferPool bufferPool = httpClient.getByteBufferPool();
boolean useDirectByteBuffers = httpClient.isUseOutputDirectByteBuffers();
while (true)
{
HttpGenerator.Result result = generator.generateRequest(null, null, chunkBuffer, contentBuffer, lastContent);
if (LOG.isDebugEnabled())
LOG.debug("Generated content ({} bytes, last={}) - {}/{}",
contentBuffer == null ? -1 : contentBuffer.remaining(),
lastContent, result, generator);
switch (result)
{
case NEED_CHUNK:
{
chunkBuffer = bufferPool.acquire(HttpGenerator.CHUNK_SIZE, useDirectByteBuffers);
break;
}
case NEED_CHUNK_TRAILER:
{
chunkBuffer = bufferPool.acquire(httpClient.getRequestBufferSize(), useDirectByteBuffers);
break;
}
case FLUSH:
{
EndPoint endPoint = getHttpChannel().getHttpConnection().getEndPoint();
if (chunkBuffer != null)
endPoint.write(this, chunkBuffer, contentBuffer);
else
endPoint.write(this, contentBuffer);
return Action.SCHEDULED;
}
case SHUTDOWN_OUT:
{
shutdownOutput();
break;
}
case CONTINUE:
{
break;
}
case DONE:
{
release();
callback.succeeded();
return Action.IDLE;
}
default:
{
throw new IllegalStateException(result.toString());
}
}
}
}
@Override
protected void onCompleteFailure(Throwable cause)
{
release();
callback.failed(cause);
}
private void release()
{
HttpClient httpClient = getHttpChannel().getHttpDestination().getHttpClient();
ByteBufferPool bufferPool = httpClient.getByteBufferPool();
bufferPool.release(chunkBuffer);
chunkBuffer = null;
contentBuffer = null;
}
}
}
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