fredia commented on code in PR #26682: URL: https://github.com/apache/flink/pull/26682#discussion_r2152138968
########## flink-runtime/src/main/java/org/apache/flink/runtime/asyncprocessing/operators/AbstractAsyncRunnableStreamOperator.java: ########## @@ -0,0 +1,123 @@ +/* + * 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.runtime.asyncprocessing.operators; + +import org.apache.flink.annotation.Internal; +import org.apache.flink.api.common.operators.MailboxExecutor; +import org.apache.flink.api.java.functions.KeySelector; +import org.apache.flink.core.asyncprocessing.AsyncFuture; +import org.apache.flink.runtime.asyncprocessing.AsyncExecutionController; +import org.apache.flink.runtime.asyncprocessing.EpochManager; +import org.apache.flink.runtime.asyncprocessing.SimpleAsyncExecutionController; +import org.apache.flink.streaming.api.operators.AbstractStreamOperator; +import org.apache.flink.streaming.runtime.operators.asyncprocessing.AsyncKeyOrderedProcessing; +import org.apache.flink.streaming.runtime.operators.asyncprocessing.AsyncKeyOrderedProcessingOperator; +import org.apache.flink.streaming.runtime.tasks.StreamTask; +import org.apache.flink.util.function.CheckedSupplier; + +import java.util.concurrent.ExecutorService; + +import static org.apache.flink.util.Preconditions.checkNotNull; + +/** + * This operator is an abstract class that give the {@link AbstractStreamOperator} the ability to + * perform {@link AsyncKeyOrderedProcessing}. Note that this operator is not under keyed context, + * but providing key selectors for the async processing. + */ +@Internal +@SuppressWarnings("rawtypes") +public abstract class AbstractAsyncRunnableStreamOperator<OUT> + extends AbstractAsyncKeyOrderedStreamOperator<OUT> + implements AsyncKeyOrderedProcessingOperator { + + final KeySelector<?, ?> keySelector1; + final KeySelector<?, ?> keySelector2; + final ExecutorService asyncThreadPool; + final int asyncBufferSize; + final long asyncBufferTimeout; + final int inFlightRecordsLimit; + + public AbstractAsyncRunnableStreamOperator( + KeySelector<?, ?> keySelector1, + KeySelector<?, ?> keySelector2, + ExecutorService asyncThreadPool, + int asyncBufferSize, + long asyncBufferTimeout, + int inFlightRecordsLimit) { + this.keySelector1 = keySelector1; + this.keySelector2 = keySelector2; + this.asyncThreadPool = asyncThreadPool; + this.asyncBufferSize = asyncBufferSize; + this.asyncBufferTimeout = asyncBufferTimeout; + this.inFlightRecordsLimit = inFlightRecordsLimit; + } + + @Override + protected KeySelector getKeySelectorForAsyncKeyedContext(int index) { + switch (index) { + case 1: + return keySelector1; + case 2: + return keySelector2; + default: + throw new ArrayIndexOutOfBoundsException( + "Try to get key selector for index " + index); + } + } + + @Override + protected AsyncExecutionController createAsyncExecutionController() { + if (isAsyncKeyOrderedProcessingEnabled()) { + final StreamTask<?, ?> containingTask = checkNotNull(getContainingTask()); + final MailboxExecutor mailboxExecutor = + containingTask + .getMailboxExecutorFactory() + .createExecutor(getOperatorConfig().getChainIndex()); + final int maxParallelism = environment.getTaskInfo().getMaxNumberOfParallelSubtasks(); + return new SimpleAsyncExecutionController( + mailboxExecutor, + this::handleAsyncException, + asyncThreadPool, + getDeclarationManager(), + getEpochParallelMode(), + maxParallelism, + asyncBufferSize, + asyncBufferTimeout, + inFlightRecordsLimit, + null, + getMetricGroup().addGroup("asyncProcessing")); + } + return null; + } + + /** + * Define the parallel mode of the epoch manager. The default is {@link + * EpochManager.ParallelMode#SERIAL_BETWEEN_EPOCH}. Subclasses can override this method to + * change the parallel mode. + */ + protected EpochManager.ParallelMode getEpochParallelMode() { + return EpochManager.ParallelMode.SERIAL_BETWEEN_EPOCH; + } + + @SuppressWarnings("unchecked") + protected <RET> AsyncFuture<RET> asyncProcess(CheckedSupplier<RET> runnable) { + return ((SimpleAsyncExecutionController) asyncExecutionController) Review Comment: Ok, thanks for the clarification. -- 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. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
