@Test
@ClientCompatibleTest
public void isNull() {
HazelcastInstance hazelcastInstance = createHazelcastInstance();
IAtomicReference<String> ref = hazelcastInstance.getAtomicReference("isNull");
assertTrue(ref.isNull());
ref.set("foo");
assertFalse(ref.isNull());
}
@Override
public boolean addJobToCurrent(Job j) throws Exception {
IAtomicReference<Job> r = h.getAtomicReference("job-" + j.getWorkerId());
if (r.get() != null || !r.isNull()) {
boolean sent = false;
while (!sent) {
// always update
for (String s : workers()) {
if (jobFor(s) == null) {
log.info(
"Redirecting worker "
+ j.getWorkerId()
+ " to "
+ s
+ " due to work already being allocated");
r = h.getAtomicReference("job-" + s);
j.setWorkerId(s);
sent = true;
}
}
}
}
r.set(j);
// iterate over jobs without the work/data
j.setWork(null);
jobs.add(j);
return true;
}
@Override
public void clearJob(String id) throws Exception {
if (id == null) {
log.warn("No job to clear; was null, returning");
return;
}
IAtomicReference<Job> jRef = h.getAtomicReference("job-" + id);
if (jRef.isNull()) return;
jRef.clear();
log.info("Destroyed job ref " + id);
Job remove = null;
for (Job j : jobs) {
if (j.getWorkerId().equals(id)) {
remove = j;
break;
}
}
jobs.remove(remove);
}
@Override
public Job jobFor(String id) {
IAtomicReference<Job> j = h.getAtomicReference("job-" + id);
if (j.isNull() || isCurrentlyJob(id)) return null;
return j.get();
}
