/** {@inheritDoc} */
@SuppressWarnings("BusyWait")
@Override
public Boolean reduce(List<GridComputeJobResult> results) throws GridException {
assert taskSes != null;
assert results != null;
assert params != null;
assert !params.isEmpty();
assert results.size() == params.size();
Map<String, Integer> receivedParams = new HashMap<>();
boolean allAttrReceived = false;
int cnt = 0;
while (!allAttrReceived && cnt++ < 3) {
allAttrReceived = true;
for (Map.Entry<String, Integer> entry : params.entrySet()) {
assert taskSes.getAttribute(entry.getKey()) != null;
Integer newVal = (Integer) taskSes.getAttribute(entry.getKey());
assert newVal != null;
receivedParams.put(entry.getKey(), newVal);
if (newVal != entry.getValue() + 1) allAttrReceived = false;
}
if (!allAttrReceived) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
throw new GridException("Thread interrupted.", e);
}
}
}
if (log.isDebugEnabled()) {
for (Map.Entry<String, Integer> entry : receivedParams.entrySet()) {
log.debug(
"Received session attr value [name="
+ entry.getKey()
+ ", val="
+ entry.getValue()
+ ", expected="
+ (params.get(entry.getKey()) + 1)
+ ']');
}
}
return allAttrReceived;
}
/** {@inheritDoc} */
@Override
public Map<? extends GridComputeJob, GridNode> map(List<GridNode> subgrid, Integer arg)
throws GridException {
assert taskSes != null;
assert arg != null;
assert arg > 0;
Map<GridSessionLoadTestJob, GridNode> map = new HashMap<>(subgrid.size());
Iterator<GridNode> iter = subgrid.iterator();
Random rnd = new Random();
params = new HashMap<>(arg);
Collection<UUID> assigned = new ArrayList<>(subgrid.size());
for (int i = 0; i < arg; i++) {
// Recycle iterator.
if (!iter.hasNext()) iter = subgrid.iterator();
String paramName = UUID.randomUUID().toString();
int paramVal = rnd.nextInt();
taskSes.setAttribute(paramName, paramVal);
GridNode node = iter.next();
assigned.add(node.id());
map.put(new GridSessionLoadTestJob(paramName), node);
params.put(paramName, paramVal);
if (log.isDebugEnabled())
log.debug("Set session attribute [name=" + paramName + ", value=" + paramVal + ']');
}
taskSes.setAttribute("nodes", assigned);
return map;
}