/**
* Returns the next <code>Operation</code> given the <code>lastOperation</code> according to the
* current mix matrix.
*
* @param lastOperation The last <code>Operation</code> that was executed.
*/
public Operation nextRequest(int lastOperation) {
LoadProfile currentLoad = this.getTrack().getCurrentLoadProfile();
this._latestLoadProfile = currentLoad;
int nextOperation = -1;
if (lastOperation == -1) {
nextOperation = 0;
} else {
// Get the selection matrix
double[][] selectionMix =
this.getTrack().getMixMatrix(currentLoad.getMixName()).getSelectionMix();
double rand = this._randomNumberGenerator.nextDouble();
int j;
for (j = 0; j < selectionMix.length; j++) {
if (rand <= selectionMix[lastOperation][j]) {
break;
}
}
nextOperation = j;
}
Operation op = getOperation(nextOperation);
operations.add(op);
return op;
}
public static void main(String[] args) throws JSONException {
HotspotScheduleCreator creator = new HotspotScheduleCreator();
creator.setInitialWorkload(800);
// Would like to give a duration and have the workload stretched/compressed into that
LinkedList<LoadProfile> profiles = creator.createSchedule(new JSONObject());
for (LoadProfile p : profiles) {
if (p instanceof StorageLoadProfile) {
StorageLoadProfile slp = (StorageLoadProfile) p;
System.out.println(
slp.getNumberOfUsers()
+ " "
+ slp.getNumHotObjects()
+ " "
+ slp.getHotTrafficFraction());
} else System.out.println(p.getNumberOfUsers());
}
}
