public void addPingStartPlugin() {
String msg = internal.createPingStartPluginEncodedMessage();
synchronized (lockOperations) {
operations.add(new Tuple<String, String>("addEncodedMessage", msg));
}
job.schedule(SCHEDULE_TIME);
}
/**
* Actually executes the commands.
*
* <p>If send is passed, send command are handled, otherwise they're ignored.
*/
private void consumeAllCommands(final boolean send) {
ArrayList<Object> local;
synchronized (lockOperations) {
local = new ArrayList<Object>(operations);
operations.clear();
}
synchronized (lockExecuteCommands) {
boolean containsSend = local.contains("send");
if (containsSend) {
for (Iterator<Object> it = local.iterator(); it.hasNext(); ) {
if ("send".equals(it.next())) {
it.remove(); // remove any send
}
}
}
// make all pings before a send.
for (Object cmd : local) {
if (cmd instanceof Tuple) {
Tuple tuple = (Tuple) cmd;
if ("addEncodedMessage".equals(tuple.o1)) {
internal.addEncodedMessage((String) tuple.o2);
continue;
}
}
// if it got here, the command wasn't handled.
Log.log("Invalid command: " + cmd);
}
if (send) {
// make the send.
if (containsSend) {
internal.send();
}
}
}
}
/**
* Yes, this is the exception that's not asynchronous! Note that sends won't execute at this time.
* So, commands will only be added at this time without any actual send.
*/
public void stop() {
consumeAllCommands(false);
internal.stop();
}