/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.midp.jsr82emul;
/**
* Runs emulation request processing in a separate thread.
*/
abstract public class RunnableProcessor implements Runnable {
/** Shows if processing can be started. */
protected boolean ready = false;
/** Shows if processing has been interrupted. */
protected boolean interrupted = false;
/** Shows if processing should be performed repeatedly. */
private boolean loop = false;
/** Thread that performs processing. */
private Thread thread = new Thread(this);
/**
* Constructs an instance.
* @param loop flag to define if repeated processing required.
*/
RunnableProcessor(boolean loop) {
this.loop = loop;
thread = new Thread(this);
thread.start();
}
/** Constructs an instance for one time processing. */
RunnableProcessor() {
this(false);
}
/**
* Implements <code>Runnable</code>.
* Accepts and opens connection to client
*/
public void run() {
do {
synchronized (this) {
if (!ready) {
try {
wait();
} catch (InterruptedException e) {
return;
}
}
ready = false;
}
process();
} while (loop);
}
/** Interrupts processing thread. */
public void interrupt() {
interrupted = true;
loop = false;
thread.interrupt();
}
/**
* Allows one processing procedure. No processing is performed prior
* to this method call. For a repeatedly working processor each
* iteration waits for <code>start()</code>.
*/
public synchronized void start() {
ready = true;
notify();
}
/** Processing procedure. */
abstract protected void process();
}
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