/**
* This method is the main function of the thread of the collective. It does housekeeping and
* regularly talks to peers to exchange information. It can be stopped by calling <code>close()
* </code>.
*
* @see #close()
*/
public final void run() {
while (shouldLive) {
// try{
System.gc();
removeOldStuff();
if (!refresh()) {
Address[] a = observer.getPeerAddresses();
if (a != null)
synchronized (cache) {
for (int i = 0; i < a.length; ++i)
cache.put(a[i].name, new ContributionBox(a[i], null));
}
}
for (int i = 0; i < REFRESHRATE; i += 1000) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
shouldLive = false;
}
if (shouldLive == false) break;
Thread.yield();
}
/*}
catch( RuntimeException e )
{
Logger.error( "Collective#run()",
"Runtime exception caught, something is going wrong",e);
}*/
}
cache = null;
observer = null;
}
/**
* This one checks that the stats message was received. If not, the message is sent again up to
* five times. Run time an best individual of run are logged.
*/
public void finalStatistics(final EvolutionState state, final int result) {
super.finalStatistics(state, result);
EvolutionAgent agent = (EvolutionAgent) state;
StatisticsData data =
new StatisticsData(
new Address(agent.getName()),
state.generation,
System.currentTimeMillis() - creationtime,
getBestIndividual(state),
getBestIndividual(state));
if (agent.iamroot) // Local logging
printStatistics(state, data); // Every statistic will go there
else { // DRM logging
for (int i = 0; i < 5; i++) { // Try to send final data 5 times
IRequest request = agent.fireMessage(agent.getRootAddress(), EvolutionAgent.M_STATS, data);
while (request.getStatus() == IRequest.WAITING) {
Thread.yield();
// try{Thread.sleep(1000);}
// catch(Exception e){state.output.error("Exception: " + e);}
}
if (request.getStatus() == IRequest.DONE) {
break;
} else {
state.output.error("There was an error sending final statistics.");
try {
Thread.sleep(1000 * i ^ 2);
} catch (Exception e) {
state.output.error("Exception: " + e);
}
}
}
}
}
