Examples with AsyncMap io.pravega.common.util.AsyncMap used on opensource projects

Example 1 with AsyncMap

use of io.pravega.common.util.AsyncMap in project pravega by pravega.

the class SegmentStateStore method get.

// endregion
// region AsyncMap implementation
@Override
public CompletableFuture<SegmentState> get(String segmentName, Duration timeout) {
    String stateSegment = StreamSegmentNameUtils.getStateSegmentName(segmentName);
    TimeoutTimer timer = new TimeoutTimer(timeout);
    return this.storage.getStreamSegmentInfo(stateSegment, timer.getRemaining()).thenComposeAsync(sp -> {
        if (sp.getLength() == 0) {
            // Empty state files are treated the same as if they didn't exist.
            return CompletableFuture.completedFuture(null);
        } else {
            return readSegmentState(sp, timer.getRemaining());
        }
    }, this.executor).exceptionally(this::handleSegmentNotExistsException);
}