dawidwys commented on a change in pull request #13596: URL: https://github.com/apache/flink/pull/13596#discussion_r503849315
########## File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/sorted/state/BatchExecutionInternalTimeService.java ########## @@ -0,0 +1,133 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.streaming.api.operators.sorted.state; + +import org.apache.flink.runtime.state.KeyGroupedInternalPriorityQueue; +import org.apache.flink.runtime.state.PriorityComparator; +import org.apache.flink.streaming.api.operators.InternalTimer; +import org.apache.flink.streaming.api.operators.InternalTimerService; +import org.apache.flink.streaming.api.operators.TimerHeapInternalTimer; +import org.apache.flink.streaming.api.operators.Triggerable; +import org.apache.flink.streaming.runtime.tasks.ProcessingTimeService; +import org.apache.flink.util.function.BiConsumerWithException; + +import static org.apache.flink.util.Preconditions.checkNotNull; + +/** + * An implementation of a {@link InternalTimerService} that manages timers with a single active key at a time. + * Can be used in a BATCH execution mode. + */ +public class BatchExecutionInternalTimeService<K, N> implements InternalTimerService<N> { + + private final ProcessingTimeService processingTimeService; + + /** + * Processing time timers that are currently in-flight. + */ + private final KeyGroupedInternalPriorityQueue<TimerHeapInternalTimer<K, N>> processingTimeTimersQueue; + + /** + * Event time timers that are currently in-flight. + */ + private final KeyGroupedInternalPriorityQueue<TimerHeapInternalTimer<K, N>> eventTimeTimersQueue; + + /** + * The local event time, as denoted by the last received + * {@link org.apache.flink.streaming.api.watermark.Watermark Watermark}. + */ + private long currentWatermark = Long.MIN_VALUE; + + private final Triggerable<K, N> triggerTarget; + + private K currentKey; + + BatchExecutionInternalTimeService( + ProcessingTimeService processingTimeService, + Triggerable<K, N> triggerTarget) { + + this.processingTimeService = checkNotNull(processingTimeService); + this.triggerTarget = checkNotNull(triggerTarget); + + this.processingTimeTimersQueue = new BatchExecutionInternalPriorityQueueSet<>( + PriorityComparator.forPriorityComparableObjects(), + 128 + ); + this.eventTimeTimersQueue = new BatchExecutionInternalPriorityQueueSet<>( + PriorityComparator.forPriorityComparableObjects(), + 128 + ); + } + + @Override + public long currentProcessingTime() { + return processingTimeService.getCurrentProcessingTime(); + } + + @Override + public long currentWatermark() { + return currentWatermark; + } + + @Override + public void registerProcessingTimeTimer(N namespace, long time) { + processingTimeTimersQueue.add(new TimerHeapInternalTimer<>(time, currentKey, namespace)); + } + + @Override + public void registerEventTimeTimer(N namespace, long time) { + eventTimeTimersQueue.add(new TimerHeapInternalTimer<>(time, currentKey, namespace)); + } + + @Override + public void deleteProcessingTimeTimer(N namespace, long time) { + processingTimeTimersQueue.remove(new TimerHeapInternalTimer<>(time, currentKey, namespace)); + } + + @Override + public void deleteEventTimeTimer(N namespace, long time) { + eventTimeTimersQueue.remove(new TimerHeapInternalTimer<>(time, currentKey, namespace)); + } + + @Override + public void forEachEventTimeTimer(BiConsumerWithException<N, Long, Exception> consumer) { + throw new UnsupportedOperationException( + "The BatchExecutionInternalTimeService should not be used in State Processor API."); + } + + @Override + public void forEachProcessingTimeTimer(BiConsumerWithException<N, Long, Exception> consumer) { + throw new UnsupportedOperationException( + "The BatchExecutionInternalTimeService should not be used in State Processor API."); + } + + public void setCurrentKey(K currentKey) throws Exception { Review comment: I don't think `reinterpretAsKeyedStream` breaks anything. It just tells the stream is keyed. The sorting/grouping happens on the receiver side. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
