mirror of
https://github.com/vanitasvitae/Smack.git
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1f325771ab
git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@1811 b35dd754-fafc-0310-a699-88a17e54d16e
177 lines
5.6 KiB
Java
177 lines
5.6 KiB
Java
/**
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* $RCSfile$
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* $Revision$
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* $Date$
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*
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* Copyright (C) 2002-2003 Jive Software. All rights reserved.
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* ====================================================================
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* The Jive Software License (based on Apache Software License, Version 1.1)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by
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* Jive Software (http://www.jivesoftware.com)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Smack" and "Jive Software" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please
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* contact webmaster@jivesoftware.com.
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*
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* 5. Products derived from this software may not be called "Smack",
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* nor may "Smack" appear in their name, without prior written
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* permission of Jive Software.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*/
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package org.jivesoftware.smack;
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import java.util.LinkedList;
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import java.io.*;
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import org.jivesoftware.smack.packet.Packet;
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/**
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* Writes packets to a XMPP server.
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*
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* @author Matt Tucker
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*/
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class PacketWriter {
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private Thread writerThread;
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private Writer writer;
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private XMPPConnection connection;
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private LinkedList queue;
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private boolean done = false;
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/**
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* Creates a new packet writer with the specified connection.
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*
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* @param connection the connection.
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*/
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protected PacketWriter(XMPPConnection connection) {
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this.connection = connection;
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this.writer = connection.writer;
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this.queue = new LinkedList();
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writerThread = new Thread() {
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public void run() {
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writePackets();
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}
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};
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writerThread.setName("Smack Packet Writer");
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writerThread.setDaemon(true);
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}
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/**
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* Sends the specified packet to the server.
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*
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* @param packet the packet to send.
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*/
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public void sendPacket(Packet packet) {
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if (!done) {
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synchronized(queue) {
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queue.addFirst(packet);
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queue.notify();
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}
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}
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}
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/**
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* Starts the packet writer thread and opens a connection to the server. The
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* packet writer will continue writing packets until {@link #shutdown} or an
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* error occurs.
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*/
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public void startup() {
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writerThread.start();
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}
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/**
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* Shuts down the packet writer. Once this method has been called, no further
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* packets will be written to the server.
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*/
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public void shutdown() {
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done = true;
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}
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/**
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* Returns the next available packet from the queue for writing.
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*
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* @return the next packet for writing.
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*/
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private Packet nextPacket() {
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synchronized(queue) {
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while (queue.size() == 0) {
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try {
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queue.wait();
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}
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catch (InterruptedException ie) { }
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}
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return (Packet)queue.removeLast();
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}
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}
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private void writePackets() {
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try {
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// Open the stream.
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StringBuffer stream = new StringBuffer();
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stream.append("<stream:stream");
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stream.append(" to=\"" + connection.getHost() + "\"");
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stream.append(" xmlns=\"jabber:client\"");
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stream.append(" xmlns:stream=\"http://etherx.jabber.org/streams\">");
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// stream.append("xmlns:sasl=\"http://www.iana.org/assignments/sasl-mechanisms\" ");
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writer.write(stream.toString());
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writer.flush();
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// Write out packets from the queue.
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while (!done) {
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Packet packet = nextPacket();
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writer.write(packet.toXML());
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writer.flush();
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}
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// Close the stream.
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try {
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writer.write("</stream>");
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writer.flush();
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}
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catch (Exception e) { }
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finally {
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try {
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writer.close();
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}
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catch (Exception e) { }
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}
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}
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catch (IOException ioe){
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ioe.printStackTrace();
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connection.close();
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}
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}
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}
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