/
HttpReceiverOverHTTP3.java
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/
HttpReceiverOverHTTP3.java
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//
// ========================================================================
// Copyright (c) 1995-2022 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.http3.client.http.internal;
import java.io.UncheckedIOException;
import java.nio.ByteBuffer;
import org.eclipse.jetty.client.HttpExchange;
import org.eclipse.jetty.client.HttpReceiver;
import org.eclipse.jetty.client.HttpResponse;
import org.eclipse.jetty.http.HttpField;
import org.eclipse.jetty.http.HttpFields;
import org.eclipse.jetty.http.HttpStatus;
import org.eclipse.jetty.http.MetaData;
import org.eclipse.jetty.http3.api.Stream;
import org.eclipse.jetty.http3.frames.HeadersFrame;
import org.eclipse.jetty.http3.internal.HTTP3ErrorCode;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.thread.Invocable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HttpReceiverOverHTTP3 extends HttpReceiver implements Stream.Client.Listener
{
private static final Logger LOG = LoggerFactory.getLogger(HttpReceiverOverHTTP3.class);
private boolean notifySuccess;
protected HttpReceiverOverHTTP3(HttpChannelOverHTTP3 channel)
{
super(channel);
}
@Override
protected HttpChannelOverHTTP3 getHttpChannel()
{
return (HttpChannelOverHTTP3)super.getHttpChannel();
}
@Override
protected void receive()
{
// Called when the application resumes demand of content.
if (LOG.isDebugEnabled())
LOG.debug("resuming response processing on {}", this);
HttpExchange exchange = getHttpExchange();
if (exchange == null)
return;
if (notifySuccess)
responseSuccess(exchange);
else
getHttpChannel().getStream().demand();
}
@Override
public void onResponse(Stream.Client stream, HeadersFrame frame)
{
HttpExchange exchange = getHttpExchange();
if (exchange == null)
return;
HttpResponse httpResponse = exchange.getResponse();
MetaData.Response response = (MetaData.Response)frame.getMetaData();
httpResponse.version(response.getHttpVersion()).status(response.getStatus()).reason(response.getReason());
if (responseBegin(exchange))
{
HttpFields headers = response.getFields();
for (HttpField header : headers)
{
if (!responseHeader(exchange, header))
return;
}
// TODO: add support for HttpMethod.CONNECT.
if (responseHeaders(exchange))
{
int status = response.getStatus();
if (frame.isLast() || HttpStatus.isInterim(status))
responseSuccess(exchange);
else
stream.demand();
}
else
{
if (LOG.isDebugEnabled())
LOG.debug("stalling response processing, no demand after headers on {}", this);
notifySuccess = frame.isLast();
}
}
}
@Override
public void onDataAvailable(Stream.Client stream)
{
HttpExchange exchange = getHttpExchange();
if (exchange == null)
return;
try
{
Stream.Data data = stream.readData();
if (data != null)
{
ByteBuffer byteBuffer = data.getByteBuffer();
if (byteBuffer.hasRemaining())
{
Callback callback = Callback.from(Invocable.InvocationType.NON_BLOCKING, data::complete, x ->
{
data.complete();
if (responseFailure(x))
stream.reset(HTTP3ErrorCode.REQUEST_CANCELLED_ERROR.code(), x);
});
boolean proceed = responseContent(exchange, byteBuffer, callback);
if (proceed)
{
if (data.isLast())
responseSuccess(exchange);
else
stream.demand();
}
else
{
if (LOG.isDebugEnabled())
LOG.debug("stalling response processing, no demand after {} on {}", data, this);
notifySuccess = data.isLast();
}
}
else
{
data.complete();
if (data.isLast())
responseSuccess(exchange);
else
stream.demand();
}
}
else
{
stream.demand();
}
}
catch (Throwable x)
{
Throwable failure = x;
if (x instanceof UncheckedIOException)
failure = x.getCause();
exchange.getRequest().abort(failure);
}
}
@Override
public void onTrailer(Stream.Client stream, HeadersFrame frame)
{
HttpExchange exchange = getHttpExchange();
if (exchange == null)
return;
HttpFields trailers = frame.getMetaData().getFields();
trailers.forEach(exchange.getResponse()::trailer);
responseSuccess(exchange);
}
@Override
public boolean onIdleTimeout(Stream.Client stream, Throwable failure)
{
HttpExchange exchange = getHttpExchange();
if (exchange == null)
return false;
return !exchange.abort(failure);
}
@Override
public void onFailure(Stream.Client stream, long error, Throwable failure)
{
responseFailure(failure);
}
}