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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.client;
import java.nio.ByteBuffer;
import java.util.List;
import org.eclipse.jetty.client.api.Request;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class RequestNotifier
{
private static final Logger LOG = LoggerFactory.getLogger(ResponseNotifier.class);
private final HttpClient client;
public RequestNotifier(HttpClient client)
{
this.client = client;
}
public void notifyQueued(Request request)
{
// Optimized to avoid allocations of iterator instances
List requestListeners = request.getRequestListeners(null);
for (int i = 0; i < requestListeners.size(); ++i)
{
Request.RequestListener listener = requestListeners.get(i);
if (listener instanceof Request.QueuedListener)
notifyQueued((Request.QueuedListener)listener, request);
}
List listeners = client.getRequestListeners();
for (int i = 0; i < listeners.size(); ++i)
{
Request.Listener listener = listeners.get(i);
notifyQueued(listener, request);
}
}
private void notifyQueued(Request.QueuedListener listener, Request request)
{
try
{
listener.onQueued(request);
}
catch (Throwable x)
{
LOG.info("Exception while notifying listener {}", listener, x);
}
}
public void notifyBegin(Request request)
{
// Optimized to avoid allocations of iterator instances
List requestListeners = request.getRequestListeners(null);
for (int i = 0; i < requestListeners.size(); ++i)
{
Request.RequestListener listener = requestListeners.get(i);
if (listener instanceof Request.BeginListener)
notifyBegin((Request.BeginListener)listener, request);
}
List listeners = client.getRequestListeners();
for (int i = 0; i < listeners.size(); ++i)
{
Request.Listener listener = listeners.get(i);
notifyBegin(listener, request);
}
}
private void notifyBegin(Request.BeginListener listener, Request request)
{
try
{
listener.onBegin(request);
}
catch (Throwable x)
{
LOG.info("Exception while notifying listener {}", listener, x);
}
}
public void notifyHeaders(Request request)
{
// Optimized to avoid allocations of iterator instances
List requestListeners = request.getRequestListeners(null);
for (int i = 0; i < requestListeners.size(); ++i)
{
Request.RequestListener listener = requestListeners.get(i);
if (listener instanceof Request.HeadersListener)
notifyHeaders((Request.HeadersListener)listener, request);
}
List listeners = client.getRequestListeners();
for (int i = 0; i < listeners.size(); ++i)
{
Request.Listener listener = listeners.get(i);
notifyHeaders(listener, request);
}
}
private void notifyHeaders(Request.HeadersListener listener, Request request)
{
try
{
listener.onHeaders(request);
}
catch (Throwable x)
{
LOG.info("Exception while notifying listener {}", listener, x);
}
}
public void notifyCommit(Request request)
{
// Optimized to avoid allocations of iterator instances
List requestListeners = request.getRequestListeners(null);
for (int i = 0; i < requestListeners.size(); ++i)
{
Request.RequestListener listener = requestListeners.get(i);
if (listener instanceof Request.CommitListener)
notifyCommit((Request.CommitListener)listener, request);
}
List listeners = client.getRequestListeners();
for (int i = 0; i < listeners.size(); ++i)
{
Request.Listener listener = listeners.get(i);
notifyCommit(listener, request);
}
}
private void notifyCommit(Request.CommitListener listener, Request request)
{
try
{
listener.onCommit(request);
}
catch (Throwable x)
{
LOG.info("Exception while notifying listener {}", listener, x);
}
}
public void notifyContent(Request request, ByteBuffer content)
{
if (!content.hasRemaining())
return;
// Slice the buffer to avoid that listeners peek into data they should not look at.
content = content.slice();
// Optimized to avoid allocations of iterator instances.
List requestListeners = request.getRequestListeners(null);
for (int i = 0; i < requestListeners.size(); ++i)
{
Request.RequestListener listener = requestListeners.get(i);
if (listener instanceof Request.ContentListener)
{
// The buffer was sliced, so we always clear it (position=0, limit=capacity)
// before passing it to the listener that may consume it.
content.clear();
notifyContent((Request.ContentListener)listener, request, content);
}
}
List listeners = client.getRequestListeners();
for (int i = 0; i < listeners.size(); ++i)
{
Request.Listener listener = listeners.get(i);
// The buffer was sliced, so we always clear it (position=0, limit=capacity)
// before passing it to the listener that may consume it.
content.clear();
notifyContent(listener, request, content);
}
}
private void notifyContent(Request.ContentListener listener, Request request, ByteBuffer content)
{
try
{
listener.onContent(request, content);
}
catch (Throwable x)
{
LOG.info("Exception while notifying listener {}", listener, x);
}
}
public void notifySuccess(Request request)
{
// Optimized to avoid allocations of iterator instances
List requestListeners = request.getRequestListeners(null);
for (int i = 0; i < requestListeners.size(); ++i)
{
Request.RequestListener listener = requestListeners.get(i);
if (listener instanceof Request.SuccessListener)
notifySuccess((Request.SuccessListener)listener, request);
}
List listeners = client.getRequestListeners();
for (int i = 0; i < listeners.size(); ++i)
{
Request.Listener listener = listeners.get(i);
notifySuccess(listener, request);
}
}
private void notifySuccess(Request.SuccessListener listener, Request request)
{
try
{
listener.onSuccess(request);
}
catch (Throwable x)
{
LOG.info("Exception while notifying listener {}", listener, x);
}
}
public void notifyFailure(Request request, Throwable failure)
{
// Optimized to avoid allocations of iterator instances
List requestListeners = request.getRequestListeners(null);
for (int i = 0; i < requestListeners.size(); ++i)
{
Request.RequestListener listener = requestListeners.get(i);
if (listener instanceof Request.FailureListener)
notifyFailure((Request.FailureListener)listener, request, failure);
}
List listeners = client.getRequestListeners();
for (int i = 0; i < listeners.size(); ++i)
{
Request.Listener listener = listeners.get(i);
notifyFailure(listener, request, failure);
}
}
private void notifyFailure(Request.FailureListener listener, Request request, Throwable failure)
{
try
{
listener.onFailure(request, failure);
}
catch (Throwable x)
{
LOG.info("Exception while notifying listener {}", listener, x);
}
}
}
