Java tutorial
/* * Copyright 2011-2016 the original author or authors. * * Licensed 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 com.lambdaworks.redis; import java.util.concurrent.TimeUnit; import com.lambdaworks.redis.resource.DefaultEventLoopGroupProvider; import io.netty.util.concurrent.DefaultPromise; import io.netty.util.concurrent.EventExecutorGroup; import io.netty.util.concurrent.ImmediateEventExecutor; import io.netty.util.concurrent.Promise; /** * A {@link com.lambdaworks.redis.resource.EventLoopGroupProvider} suitable for testing. Preserves the event loop groups between * tests. Every time a new {@link TestEventLoopGroupProvider} instance is created, shutdown hook is added * {@link Runtime#addShutdownHook(Thread)}. * * @author Mark Paluch */ public class TestEventLoopGroupProvider extends DefaultEventLoopGroupProvider { public TestEventLoopGroupProvider() { super(10); Runtime.getRuntime().addShutdownHook(new Thread() { @Override public void run() { try { TestEventLoopGroupProvider.this.shutdown(100, 100, TimeUnit.MILLISECONDS).get(10, TimeUnit.SECONDS); } catch (Exception e) { e.printStackTrace(); } } }); } @Override public Promise<Boolean> release(EventExecutorGroup eventLoopGroup, long quietPeriod, long timeout, TimeUnit unit) { DefaultPromise<Boolean> result = new DefaultPromise<>(ImmediateEventExecutor.INSTANCE); result.setSuccess(true); return result; } }