| package org.apache.helix.messaging.handling; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.List; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| public interface TaskExecutor { |
| int DEFAULT_PARALLEL_TASKS = 40; |
| int DEFAULT_MSG_HANDLER_RESET_TIMEOUT_MS = 200; |
| |
| /** |
| * Register MultiType message handler factory that the executor can handle. |
| * @param factory MultiType message handler factory |
| * @param threadPoolSize Threadpool size of the corresponding execute service. |
| * @param resetTimeoutMs Timeout when wait for the execute service to be shutdown. |
| */ |
| default void registerMessageHandlerFactory(MultiTypeMessageHandlerFactory factory, |
| int threadPoolSize, int resetTimeoutMs) { |
| throw new UnsupportedOperationException("This method has not been implemented."); |
| } |
| |
| /** |
| * Register message handler factory this executor can handle |
| * @param type |
| * @param factory |
| */ |
| @Deprecated |
| void registerMessageHandlerFactory(String type, MessageHandlerFactory factory); |
| |
| /** |
| * Register message handler factory this executor can handle with specified |
| * thread-pool size |
| * @param type |
| * @param factory |
| * @param threadPoolSize |
| */ |
| @Deprecated |
| void registerMessageHandlerFactory(String type, MessageHandlerFactory factory, |
| int threadPoolSize); |
| |
| /** |
| * schedule a message execution |
| * @param task |
| */ |
| boolean scheduleTask(MessageTask task); |
| |
| /** |
| * blocking on scheduling all tasks |
| * @param tasks |
| */ |
| List<Future<HelixTaskResult>> invokeAllTasks(List<MessageTask> tasks, long timeout, |
| TimeUnit unit) throws InterruptedException; |
| |
| /** |
| * cancel a message execution |
| * @param task |
| */ |
| boolean cancelTask(MessageTask task); |
| |
| /** |
| * cancel the timeout for the given task |
| * @param task |
| * @return |
| */ |
| boolean cancelTimeoutTask(MessageTask task); |
| |
| /** |
| * finish a message execution |
| * @param task |
| */ |
| void finishTask(MessageTask task); |
| |
| /** |
| * shutdown executor |
| */ |
| void shutdown(); |
| } |