package org.litesoft.p2pchat;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;
import java.util.Vector;
// Copyright Status:
//
// All Software available from LiteSoft.org (including this file) is
// hereby released into the public domain.
//
// It is free! As in, you may use it freely in both commercial and
// non-commercial applications, bundle it with your software
// distribution, include it on a CD-ROM, list the source code in a book,
// mirror the documentation at your own web site, or use it in any other
// way you see fit.
//
// NO Warranty!
//
// All software is provided "as is".
//
// There is ABSOLUTELY NO WARRANTY OF ANY KIND: not for the design, fitness
// (for a particular purpose), level of errors (or lack thereof), or
// applicability of this software. The entire risk as to the quality
// and performance of this software is with you. Should this software
// prove defective, you assume the cost of all necessary servicing, repair
// or correction.
//
// In no event unless required by applicable law or agreed to in writing
// will any party who created or may modify and/or redistribute this
// software, be liable to you for damages, including any general,
// special, incidental or consequential damages arising out of the use or
// inability to use this software (including but not limited to loss of
// data or data being rendered inaccurate or losses sustained by you or
// third parties or a failure of this software to operate with any
// other programs), even if such holder or other party has been advised
// of the possibility of such damages.
//
// NOTE: Should you discover a bug, have a recogmendation for a change, wish
// to submit modifications, or wish to add new classes/functionality,
// please email them to:
//
// changes@litesoft.org
//
/**
* @author Devin Smith and George Smith
* @version 0.5 05/17/13 Specify UTF-8 charset
* @version 0.4 04/07/13 Added name for thread, general clean up
* @version 0.3 02/02/02 Added IllegalArgument.ifNull for all public params that may not be null
* @version 0.2 01/28/02 Refactored and Added Licence
* @version 0.1 12/27/01 Initial Version
*/
public class PeerWriter extends Thread {
private Vector<String> zLines = new Vector<String>();
private boolean isOpen = true;
private BufferedWriter zWriter;
private long pingInterval = 15L*60L*1000L;
public PeerWriter(OutputStream pOs) {
IllegalArgument.ifNull("Os", pOs);
zWriter = new BufferedWriter(new OutputStreamWriter(pOs,Charset.forName("UTF-8")));
setName("Peer Writer Thread");
start();
}
public synchronized void writeLine(String pMessage) {
IllegalArgument.ifNull("Message", pMessage);
if (isOpen) {
zLines.addElement(pMessage);
}
notifyAll();
}
public synchronized void close() {
isOpen = false;
notifyAll();
}
public synchronized boolean isOpen() {
return isOpen;
}
private synchronized String getLine() {
while (isOpen && zLines.isEmpty()) {
try {
wait(pingInterval);
}
catch (InterruptedException e) {
}
}
String message = isOpen ? "" : null;
if (isOpen && zLines.size() > 0) {
message = (String) zLines.elementAt(0);
zLines.removeElementAt(0);
}
return message;
}
public void run() {
String line;
try {
while (null != (line = getLine())) {
zWriter.write(line);
zWriter.newLine();
zWriter.flush();
}
zWriter.write("BYE");
zWriter.newLine();
zWriter.flush();
}
catch (IOException e) {
// Presume socket has been closed. Fail silently and stop thread
}
try {
isOpen = false;
zWriter.close();
}
catch (IOException ignore) {
}
}
}