Examples with Window org.apache.heron.streamlet.Window used on opensource projects

Example 1 with Window

use of org.apache.heron.streamlet.Window in project heron by twitter.

the class ReduceByKeyAndWindowOperator method execute.

@SuppressWarnings("unchecked")
@Override
public void execute(TupleWindow inputWindow) {
    Map<K, T> reduceMap = new HashMap<>();
    Map<K, Integer> windowCountMap = new HashMap<>();
    for (Tuple tuple : inputWindow.get()) {
        R tup = (R) tuple.getValue(0);
        addMap(reduceMap, windowCountMap, tup);
    }
    long startWindow;
    long endWindow;
    if (inputWindow.getStartTimestamp() == null) {
        startWindow = 0;
    } else {
        startWindow = inputWindow.getStartTimestamp();
    }
    if (inputWindow.getEndTimestamp() == null) {
        endWindow = 0;
    } else {
        endWindow = inputWindow.getEndTimestamp();
    }
    for (K key : reduceMap.keySet()) {
        Window window = new Window(startWindow, endWindow, windowCountMap.get(key));
        KeyedWindow<K> keyedWindow = new KeyedWindow<>(key, window);
        collector.emit(new Values(new KeyValue<>(keyedWindow, reduceMap.get(key))));
    }
}

Example 2 with Window

use of org.apache.heron.streamlet.Window in project heron by twitter.

the class GeneralReduceByKeyAndWindowOperator method execute.

@SuppressWarnings("unchecked")
@Override
public void execute(TupleWindow inputWindow) {
    Map<K, T> reduceMap = new HashMap<>();
    Map<K, Integer> windowCountMap = new HashMap<>();
    for (Tuple tuple : inputWindow.get()) {
        R tup = (R) tuple.getValue(0);
        addMap(reduceMap, windowCountMap, tup);
    }
    long startWindow;
    long endWindow;
    if (inputWindow.getStartTimestamp() == null) {
        startWindow = 0;
    } else {
        startWindow = inputWindow.getStartTimestamp();
    }
    if (inputWindow.getEndTimestamp() == null) {
        endWindow = 0;
    } else {
        endWindow = inputWindow.getEndTimestamp();
    }
    for (K key : reduceMap.keySet()) {
        Window window = new Window(startWindow, endWindow, windowCountMap.get(key));
        KeyedWindow<K> keyedWindow = new KeyedWindow<>(key, window);
        collector.emit(new Values(new KeyValue<>(keyedWindow, reduceMap.get(key))));
    }
}

Example 3 with Window

use of org.apache.heron.streamlet.Window in project heron by twitter.

the class JoinOperator method getKeyedWindow.

private KeyedWindow<K> getKeyedWindow(K key, TupleWindow tupleWindow) {
    long startWindow;
    long endWindow;
    if (tupleWindow.getStartTimestamp() == null) {
        startWindow = 0;
    } else {
        startWindow = tupleWindow.getStartTimestamp();
    }
    if (tupleWindow.getEndTimestamp() == null) {
        endWindow = 0;
    } else {
        endWindow = tupleWindow.getEndTimestamp();
    }
    Window window = new Window(startWindow, endWindow, tupleWindow.get().size());
    return new KeyedWindow<>(key, window);
}