@Test
public void whenInsertDuplicatesInMultiSet_thenInserted() {
final Multiset<String> names = HashMultiset.create();
names.add("John");
names.add("Adam", 3);
names.add("John");
assertEquals(2, names.count("John"));
names.remove("John");
assertEquals(1, names.count("John"));
assertEquals(3, names.count("Adam"));
names.remove("Adam", 2);
assertEquals(1, names.count("Adam"));
}
public static void main(String args[]) {
// create a multiset collection
Multiset<String> multiset = HashMultiset.create();
multiset.add("a");
multiset.add("b");
multiset.add("c");
multiset.add("d");
multiset.add("a");
multiset.add("b");
multiset.add("c");
multiset.add("b");
multiset.add("b");
multiset.add("b");
// print the occurrence of an element
System.out.println("Occurrence of 'b' : " + multiset.count("b"));
// print the total size of the multiset
System.out.println("Total Size : " + multiset.size());
// get the distinct elements of the multiset as set
Set<String> set = multiset.elementSet();
// display the elements of the set
System.out.println("Set [");
for (String s : set) {
System.out.println(s);
}
System.out.println("]");
// display all the elements of the multiset using iterator
Iterator<String> iterator = multiset.iterator();
System.out.println("MultiSet [");
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
System.out.println("]");
// display the distinct elements of the multiset with their occurrence count
System.out.println("MultiSet [");
for (Multiset.Entry<String> entry : multiset.entrySet()) {
System.out.println("Element: " + entry.getElement() + ", Occurrence(s): " + entry.getCount());
}
System.out.println("]");
// remove extra occurrences
multiset.remove("b", 2);
// print the occurrence of an element
System.out.println("Occurence of 'b' : " + multiset.count("b"));
}
// Removes a single edge
public void removeConnection(int from, int to) {
Multiset<Integer> outSet;
if (nodeOutEdges.containsKey(from)) {
outSet = nodeOutEdges.get(from);
outSet.remove(to);
nodeInEdges.get(to).remove(from);
}
}
@Override
public void trigger(long time) throws Exception {
boolean fire;
// Remove information about the triggering task
processingTimeTimerFutures.remove(time);
processingTimeTimerTimestamps.remove(time, processingTimeTimerTimestamps.count(time));
do {
Timer<K, W> timer = processingTimeTimersQueue.peek();
if (timer != null && timer.timestamp <= time) {
fire = true;
processingTimeTimers.remove(timer);
processingTimeTimersQueue.remove();
context.key = timer.key;
context.window = timer.window;
setKeyContext(timer.key);
AppendingState<IN, ACC> windowState;
MergingWindowSet<W> mergingWindows = null;
if (windowAssigner instanceof MergingWindowAssigner) {
mergingWindows = getMergingWindowSet();
W stateWindow = mergingWindows.getStateWindow(context.window);
windowState = getPartitionedState(stateWindow, windowSerializer, windowStateDescriptor);
} else {
windowState =
getPartitionedState(context.window, windowSerializer, windowStateDescriptor);
}
TriggerResult triggerResult = context.onProcessingTime(timer.timestamp);
fireOrContinue(triggerResult, context.window, windowState);
if (triggerResult.isPurge()
|| (!windowAssigner.isEventTime() && isCleanupTime(timer.window, timer.timestamp))) {
cleanup(timer.window, windowState, mergingWindows);
}
} else {
fire = false;
}
} while (fire);
}
