/** calculates the object request list to request to each member */
public final synchronized void calculateAccesses() {
if (hasAccessesCalculated) {
return;
}
hasAccessesCalculated = true;
if (log.isTraceEnabled()) {
log.trace("Calculating accessed keys for data placement optimization");
}
RemoteTopKeyRequest request = new RemoteTopKeyRequest(streamLibContainer.getCapacity() * 2);
request.merge(streamLibContainer.getTopKFrom(REMOTE_PUT, maxNumberOfKeysToRequest), 2);
request.merge(streamLibContainer.getTopKFrom(REMOTE_GET, maxNumberOfKeysToRequest), 1);
sortObjectsByPrimaryOwner(request.toRequestMap(maxNumberOfKeysToRequest), true);
request.clear();
LocalTopKeyRequest localTopKeyRequest = new LocalTopKeyRequest();
localTopKeyRequest.merge(streamLibContainer.getTopKFrom(LOCAL_PUT), 2);
localTopKeyRequest.merge(streamLibContainer.getTopKFrom(LOCAL_GET), 1);
sortObjectsByPrimaryOwner(localTopKeyRequest.toRequestMap(), false);
request.clear();
if (log.isTraceEnabled()) {
StringBuilder stringBuilder = new StringBuilder("Accesses:\n");
for (int i = 0; i < accessesByPrimaryOwner.length; ++i) {
stringBuilder
.append(clusterSnapshot.get(i))
.append(" ==> ")
.append(accessesByPrimaryOwner[i])
.append("\n");
}
log.debug(stringBuilder);
}
streamLibContainer.resetStat(REMOTE_GET);
streamLibContainer.resetStat(LOCAL_GET);
streamLibContainer.resetStat(REMOTE_PUT);
streamLibContainer.resetStat(LOCAL_PUT);
}
public AccessesManager(DistributionManager distributionManager, int maxNumberOfKeysToRequest) {
this.distributionManager = distributionManager;
this.maxNumberOfKeysToRequest = maxNumberOfKeysToRequest;
streamLibContainer = StreamLibContainer.getInstance();
}