| /* |
| * 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.cassandra.utils.concurrent; |
| |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.function.Supplier; |
| import java.util.stream.Collectors; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.util.concurrent.MoreExecutors; |
| |
| import io.netty.util.concurrent.Future; |
| import io.netty.util.concurrent.GenericFutureListener; |
| import org.apache.cassandra.concurrent.ExecutorPlus; |
| import org.apache.cassandra.utils.WithResources; |
| |
| public class AsyncPromiseTest extends AbstractTestAsyncPromise |
| { |
| @After |
| public void shutdown() |
| { |
| exec.shutdownNow(); |
| } |
| |
| private static <V> List<Supplier<Promise<V>>> suppliers(AtomicInteger listeners, boolean includeUncancellable) |
| { |
| List<Supplier<Promise<V>>> cancellable = ImmutableList.of( |
| () -> new AsyncPromise<>(), |
| () -> new AsyncPromise<>(f -> listeners.incrementAndGet()), |
| () -> AsyncPromise.withExecutor(TestInExecutor.INSTANCE)); |
| List<Supplier<Promise<V>>> uncancellable = ImmutableList.of( |
| () -> AsyncPromise.uncancellable(), |
| () -> AsyncPromise.uncancellable((GenericFutureListener<? extends Future<? super V>>) f -> listeners.incrementAndGet()), |
| () -> AsyncPromise.uncancellable(MoreExecutors.directExecutor()), |
| () -> AsyncPromise.uncancellable(TestInExecutor.INSTANCE) |
| ); |
| |
| if (!includeUncancellable) |
| return cancellable; |
| |
| ImmutableList.Builder<Supplier<Promise<V>>> builder = ImmutableList.builder(); |
| builder.addAll(cancellable) |
| .addAll(cancellable.stream().map(s -> (Supplier<Promise<V>>) () -> cancelSuccess(s.get())).collect(Collectors.toList())) |
| .addAll(cancellable.stream().map(s -> (Supplier<Promise<V>>) () -> cancelExclusiveSuccess(s.get())).collect(Collectors.toList())) |
| .addAll(uncancellable) |
| .addAll(uncancellable.stream().map(s -> (Supplier<Promise<V>>) () -> cancelFailure(s.get())).collect(Collectors.toList())); |
| return builder.build(); |
| } |
| |
| @Test |
| public void testSuccess() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Integer>>> suppliers = suppliers(initialListeners, true); |
| for (boolean tryOrSet : new boolean[]{ false, true }) |
| for (Integer v : new Integer[]{ null, 1 }) |
| for (Supplier<Promise<Integer>> supplier : suppliers) |
| testOneSuccess(supplier.get(), tryOrSet, v, 2); |
| Assert.assertEquals(5 * 2 * 2, initialListeners.get()); |
| } |
| |
| @Test |
| public void testFailure() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Integer>>> suppliers = suppliers(initialListeners, true); |
| for (boolean tryOrSet : new boolean[] { false, true }) |
| for (Throwable v : new Throwable[] { null, new NullPointerException() }) |
| for (Supplier<Promise<Integer>> supplier : suppliers) |
| testOneFailure(supplier.get(), tryOrSet, v, 2); |
| Assert.assertEquals(5 * 2 * 2, initialListeners.get()); |
| } |
| |
| |
| @Test |
| public void testCancellation() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Integer>>> suppliers = suppliers(initialListeners, false); |
| for (boolean interruptIfRunning : new boolean[] { true, false }) |
| for (Supplier<Promise<Integer>> supplier : suppliers) |
| testOneCancellation(supplier.get(), interruptIfRunning, 2); |
| Assert.assertEquals(2, initialListeners.get()); |
| } |
| |
| |
| @Test |
| public void testTimeout() |
| { |
| final AtomicInteger initialListeners = new AtomicInteger(); |
| List<Supplier<Promise<Integer>>> suppliers = suppliers(initialListeners, true); |
| for (Supplier<Promise<Integer>> supplier : suppliers) |
| testOneTimeout(supplier.get()); |
| Assert.assertEquals(0, initialListeners.get()); |
| } |
| |
| private static final class TestInExecutor implements ExecutorPlus |
| { |
| static final TestInExecutor INSTANCE = new TestInExecutor(); |
| @Override |
| public void shutdown() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public List<Runnable> shutdownNow() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean isShutdown() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean isTerminated() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> org.apache.cassandra.utils.concurrent.Future<T> submit(Callable<T> task) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> org.apache.cassandra.utils.concurrent.Future<T> submit(Runnable task, T result) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public org.apache.cassandra.utils.concurrent.Future<?> submit(Runnable task) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void execute(WithResources withResources, Runnable task) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> org.apache.cassandra.utils.concurrent.Future<T> submit(WithResources withResources, Callable<T> task) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public org.apache.cassandra.utils.concurrent.Future<?> submit(WithResources withResources, Runnable task) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> org.apache.cassandra.utils.concurrent.Future<T> submit(WithResources withResources, Runnable task, T result) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean inExecutor() |
| { |
| return true; |
| } |
| |
| @Override |
| public void execute(Runnable command) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int getCorePoolSize() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void setCorePoolSize(int newCorePoolSize) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int getMaximumPoolSize() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void setMaximumPoolSize(int newMaximumPoolSize) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int getActiveTaskCount() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public long getCompletedTaskCount() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int getPendingTaskCount() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| } |
| |