Show StabilityQueue.java syntax highlighted
/** (C) Copyright 1998-2005 Hewlett-Packard Development Company, LP
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
For more information: www.smartfrog.org
*/
package org.smartfrog.services.anubis.locator.registers;
import org.smartfrog.services.anubis.partition.views.View;
import org.smartfrog.services.anubis.locator.util.BlockingQueue;
abstract public class StabilityQueue {
private class Notification {
View view; int leader;
public Notification(View view, int leader) {
this.view = view; this.leader = leader;
}
}
private class RequestServer extends Thread {
private boolean running = false;
public RequestServer() { super("Anubis: Locator StabilityQueue Server"); }
public void run() {
running = true;
while( running ) {
Notification notification = (Notification)requests.get();
if( notification != null )
doit(notification.view, notification.leader);
}
}
public void terminate() { running = false; }
}
private BlockingQueue requests = new BlockingQueue();
private RequestServer server = new RequestServer();
public StabilityQueue() { }
public void start() { server.start(); }
public void terminate() { server.terminate(); requests.deactivate(); }
public void put(View view, int leader) { requests.put(new Notification(view, leader)); }
abstract public void doit(View view, int leader);
}
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