org.eclipse.jetty.io.NetworkTrafficSocketChannelEndPoint Maven / Gradle / Ivy

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// 
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// 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.io;

import java.io.IOException;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.nio.channels.SelectableChannel;
import java.nio.channels.SelectionKey;
import java.util.List;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.thread.Scheduler;

/**
 *  A specialized version of {@link SocketChannelEndPoint} that supports {@link NetworkTrafficListener}s.
 *
 * @deprecated The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.
 */
@Deprecated(since = "2021-05-27")
public class NetworkTrafficSocketChannelEndPoint extends SocketChannelEndPoint {

    private static final Logger LOG = Log.getLogger(NetworkTrafficSocketChannelEndPoint.class);

    private final List listeners;

    public NetworkTrafficSocketChannelEndPoint(SelectableChannel channel, ManagedSelector selectSet, SelectionKey key, Scheduler scheduler, long idleTimeout, List listeners) {
        super(channel, selectSet, key, scheduler);
        setIdleTimeout(idleTimeout);
        this.listeners = listeners;
    }

    @Override
    public int fill(ByteBuffer buffer) throws IOException {
        int read = super.fill(buffer);
        notifyIncoming(buffer, read);
        return read;
    }

    @Override
    public boolean flush(ByteBuffer... buffers) throws IOException {
        boolean flushed = true;
        for (ByteBuffer b : buffers) {
            if (b.hasRemaining()) {
                int position = b.position();
                ByteBuffer view = b.slice();
                flushed = super.flush(b);
                int l = b.position() - position;
                view.limit(view.position() + l);
                notifyOutgoing(view);
                if (!flushed)
                    break;
            }
        }
        return flushed;
    }

    @Override
    public void onOpen() {
        super.onOpen();
        if (listeners != null && !listeners.isEmpty()) {
            for (NetworkTrafficListener listener : listeners) {
                try {
                    listener.opened(getSocket());
                } catch (Exception x) {
                    LOG.warn(x);
                }
            }
        }
    }

    @Override
    public void onClose() {
        super.onClose();
        if (listeners != null && !listeners.isEmpty()) {
            for (NetworkTrafficListener listener : listeners) {
                try {
                    listener.closed(getSocket());
                } catch (Exception x) {
                    LOG.warn(x);
                }
            }
        }
    }

    public void notifyIncoming(ByteBuffer buffer, int read) {
        if (listeners != null && !listeners.isEmpty() && read > 0) {
            for (NetworkTrafficListener listener : listeners) {
                try {
                    ByteBuffer view = buffer.asReadOnlyBuffer();
                    listener.incoming(getSocket(), view);
                } catch (Exception x) {
                    LOG.warn(x);
                }
            }
        }
    }

    public void notifyOutgoing(ByteBuffer view) {
        if (listeners != null && !listeners.isEmpty() && view.hasRemaining()) {
            Socket socket = getSocket();
            for (NetworkTrafficListener listener : listeners) {
                try {
                    listener.outgoing(socket, view);
                } catch (Exception x) {
                    LOG.warn(x);
                }
            }
        }
    }
}