| /* |
| * 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.executiongraph; |
| |
| import org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor; |
| import org.apache.flink.runtime.concurrent.ComponentMainThreadExecutorServiceAdapter; |
| import org.apache.flink.util.ExecutorUtils; |
| import org.apache.flink.util.function.FunctionUtils; |
| import org.apache.flink.util.function.SupplierWithException; |
| import org.apache.flink.util.function.ThrowingRunnable; |
| |
| import org.junit.jupiter.api.extension.AfterAllCallback; |
| import org.junit.jupiter.api.extension.BeforeAllCallback; |
| import org.junit.jupiter.api.extension.ExtensionContext; |
| |
| import javax.annotation.Nonnull; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.TimeUnit; |
| |
| /** Util to run test calls with a provided main thread executor. */ |
| public class TestingComponentMainThreadExecutor { |
| |
| /** The main thread executor to which execution is delegated. */ |
| @Nonnull private final ComponentMainThreadExecutor mainThreadExecutor; |
| |
| public TestingComponentMainThreadExecutor( |
| @Nonnull ComponentMainThreadExecutor mainThreadExecutor) { |
| this.mainThreadExecutor = mainThreadExecutor; |
| } |
| |
| /** |
| * Executes the given supplier with the main thread executor until completion, returns the |
| * result or a exception. This method blocks until the execution is complete. |
| */ |
| public <U> U execute(@Nonnull SupplierWithException<U, Throwable> supplierWithException) { |
| return CompletableFuture.supplyAsync( |
| FunctionUtils.uncheckedSupplier(supplierWithException), mainThreadExecutor) |
| .join(); |
| } |
| |
| /** Executes the given runnable with the main thread executor and blocks until completion. */ |
| public void execute(@Nonnull ThrowingRunnable<Throwable> throwingRunnable) { |
| execute( |
| () -> { |
| throwingRunnable.run(); |
| return null; |
| }); |
| } |
| |
| @Nonnull |
| public ComponentMainThreadExecutor getMainThreadExecutor() { |
| return mainThreadExecutor; |
| } |
| |
| /** Test extension for convenience. */ |
| public static class Extension implements BeforeAllCallback, AfterAllCallback { |
| private final long shutdownTimeoutMillis; |
| |
| private TestingComponentMainThreadExecutor componentMainThreadTestExecutor; |
| |
| private ScheduledExecutorService innerExecutorService; |
| |
| public Extension() { |
| this(500L); |
| } |
| |
| public Extension(long shutdownTimeoutMillis) { |
| this.shutdownTimeoutMillis = shutdownTimeoutMillis; |
| } |
| |
| @Override |
| public void beforeAll(ExtensionContext extensionContext) throws Exception { |
| this.innerExecutorService = Executors.newSingleThreadScheduledExecutor(); |
| this.componentMainThreadTestExecutor = |
| new TestingComponentMainThreadExecutor( |
| ComponentMainThreadExecutorServiceAdapter.forSingleThreadExecutor( |
| innerExecutorService)); |
| } |
| |
| @Override |
| public void afterAll(ExtensionContext extensionContext) throws Exception { |
| ExecutorUtils.gracefulShutdown( |
| shutdownTimeoutMillis, TimeUnit.MILLISECONDS, innerExecutorService); |
| } |
| |
| public TestingComponentMainThreadExecutor getComponentMainThreadTestExecutor() { |
| return componentMainThreadTestExecutor; |
| } |
| } |
| } |