Examples with MergingWindowAssigner org.apache.flink.streaming.api.windowing.assigners.MergingWindowAssigner used on opensource projects

Example 11 with MergingWindowAssigner

use of org.apache.flink.streaming.api.windowing.assigners.MergingWindowAssigner in project flink by apache.

the class WindowOperator method onEventTime.

@Override
public void onEventTime(InternalTimer<K, W> timer) throws Exception {
    context.key = timer.getKey();
    context.window = timer.getNamespace();
    MergingWindowSet<W> mergingWindows;
    if (windowAssigner instanceof MergingWindowAssigner) {
        mergingWindows = getMergingWindowSet();
        W stateWindow = mergingWindows.getStateWindow(context.window);
        if (stateWindow == null) {
            // window and therefore the Trigger state, however, so nothing to do.
            return;
        } else {
            windowState.setCurrentNamespace(stateWindow);
        }
    } else {
        windowState.setCurrentNamespace(context.window);
        mergingWindows = null;
    }
    ACC contents = null;
    if (windowState != null) {
        contents = windowState.get();
    }
    if (contents != null) {
        TriggerResult triggerResult = context.onEventTime(timer.getTimestamp());
        if (triggerResult.isFire()) {
            emitWindowContents(context.window, contents);
        }
        if (triggerResult.isPurge()) {
            windowState.clear();
        }
    }
    if (windowAssigner.isEventTime() && isCleanupTime(context.window, timer.getTimestamp())) {
        clearAllState(context.window, windowState, mergingWindows);
    }
    if (mergingWindows != null) {
        // need to make sure to update the merging state in state
        mergingWindows.persist();
    }
}

Example 12 with MergingWindowAssigner

use of org.apache.flink.streaming.api.windowing.assigners.MergingWindowAssigner in project flink by apache.

the class EvictingWindowOperator method onEventTime.

@Override
public void onEventTime(InternalTimer<K, W> timer) throws Exception {
    context.key = timer.getKey();
    context.window = timer.getNamespace();
    evictorContext.key = timer.getKey();
    evictorContext.window = timer.getNamespace();
    MergingWindowSet<W> mergingWindows = null;
    if (windowAssigner instanceof MergingWindowAssigner) {
        mergingWindows = getMergingWindowSet();
        W stateWindow = mergingWindows.getStateWindow(context.window);
        if (stateWindow == null) {
            // window and therefore the Trigger state, however, so nothing to do.
            return;
        } else {
            evictingWindowState.setCurrentNamespace(stateWindow);
        }
    } else {
        evictingWindowState.setCurrentNamespace(context.window);
    }
    Iterable<StreamRecord<IN>> contents = evictingWindowState.get();
    if (contents != null) {
        TriggerResult triggerResult = context.onEventTime(timer.getTimestamp());
        if (triggerResult.isFire()) {
            emitWindowContents(context.window, contents, evictingWindowState);
        }
        if (triggerResult.isPurge()) {
            evictingWindowState.clear();
        }
    }
    if (windowAssigner.isEventTime() && isCleanupTime(context.window, timer.getTimestamp())) {
        clearAllState(context.window, evictingWindowState, mergingWindows);
    }
    if (mergingWindows != null) {
        // need to make sure to update the merging state in state
        mergingWindows.persist();
    }
}