[ISSUE#9097] Add new command to check async task status in broker. #9162
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| /* | ||
| * 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.rocketmq.broker; | ||
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| import com.alibaba.fastjson.JSON; | ||
| import com.github.benmanes.caffeine.cache.RemovalCause; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import org.apache.rocketmq.common.AsyncTask; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.UUID; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
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| import com.github.benmanes.caffeine.cache.Cache; | ||
| import com.github.benmanes.caffeine.cache.Caffeine; | ||
| import java.util.concurrent.TimeUnit; | ||
| import org.apache.rocketmq.common.BrokerConfig; | ||
| import org.apache.rocketmq.common.TaskStatus; | ||
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| public class AdminAsyncTaskManager { | ||
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| // taskId -> AsyncTask | ||
| private final Cache<String, AsyncTask> asyncTaskCache; | ||
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| // taskName -> taskId | ||
| private final ConcurrentHashMap<String, List<String>> taskNameToIdsMap; | ||
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| private final BrokerConfig brokerConfig; | ||
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| private final int taskCacheExpireTimeMinutes; | ||
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| private final int maxTaskCacheSize; | ||
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| public AdminAsyncTaskManager(BrokerConfig brokerConfig) { | ||
| this.brokerConfig = brokerConfig; | ||
| this.taskCacheExpireTimeMinutes = brokerConfig.getTaskCacheExpireTimeMinutes(); | ||
| this.maxTaskCacheSize = brokerConfig.getMaxTaskCacheSize(); | ||
| this.taskNameToIdsMap = new ConcurrentHashMap<>(); | ||
| this.asyncTaskCache = Caffeine.newBuilder() | ||
| .expireAfterWrite(taskCacheExpireTimeMinutes, TimeUnit.MINUTES) | ||
| .maximumSize(maxTaskCacheSize) | ||
| .removalListener((String taskId, AsyncTask task, RemovalCause cause) -> { | ||
| if (task != null) { | ||
| taskNameToIdsMap.computeIfPresent(task.getTaskName(), (k, list) -> { | ||
| list.remove(taskId); | ||
| return list.isEmpty() ? null : list; | ||
| }); | ||
| } | ||
| }) | ||
| .build(); | ||
| } | ||
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| /** | ||
| * Creates a new asynchronous task with a unique taskId. | ||
| * | ||
| * @param taskName The name of the task. | ||
| * @param future The CompletableFuture representing the asynchronous task. | ||
| * @return The generated taskId. | ||
| */ | ||
| public String createTask(String taskName, CompletableFuture<?> future) { | ||
| String taskId = UUID.randomUUID().toString(); | ||
| AsyncTask task = new AsyncTask(taskName, taskId, future); | ||
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| asyncTaskCache.put(taskId, task); | ||
| taskNameToIdsMap.computeIfAbsent(taskName, k -> Collections.synchronizedList(new ArrayList<>())).add(taskId); | ||
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| future.whenComplete((result, throwable) -> { | ||
| if (throwable != null) { | ||
| task.setStatus(TaskStatus.ERROR.getValue()); | ||
| task.setResult(throwable.getMessage()); | ||
| } else { | ||
| task.setStatus(TaskStatus.SUCCESS.getValue()); | ||
| task.setResult(JSON.toJSONString(result)); | ||
| } | ||
| }); | ||
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| return taskId; | ||
| } | ||
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| /** | ||
| * Get all taskIds associated with a given task name. | ||
| * | ||
| * @param taskName The name of the task. | ||
| * @return List of taskIds for the given task name. | ||
| */ | ||
| public List<String> getTaskIdsByName(String taskName) { | ||
| return taskNameToIdsMap.getOrDefault(taskName, Collections.emptyList()); | ||
| } | ||
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| /** | ||
| * Get the status of a specific task. | ||
| * | ||
| * @param taskId The unique identifier of the task. | ||
| * @return The AsyncTask object, or null if not found. | ||
| */ | ||
| public AsyncTask getTaskStatus(String taskId) { | ||
| return asyncTaskCache.getIfPresent(taskId); | ||
| } | ||
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| /** | ||
| * Update the status and result of a specific task. | ||
| * | ||
| * @param taskId The unique identifier of the task. | ||
| * @param status The new status of the task. | ||
| * @param result The result of the task. | ||
| */ | ||
| public void updateTaskStatus(String taskId, int status, String result) { | ||
| AsyncTask task = asyncTaskCache.getIfPresent(taskId); | ||
| if (task != null) { | ||
| task.setStatus(status); | ||
| task.setResult(result); | ||
| asyncTaskCache.put(taskId, task); | ||
| } | ||
| } | ||
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| /** | ||
| * Remove a specific task from the cache and mappings. | ||
| * | ||
| * @param taskId The unique identifier of the task. | ||
| */ | ||
| public void removeTask(String taskId) { | ||
| AsyncTask task = asyncTaskCache.getIfPresent(taskId); | ||
| if (task != null) { | ||
| asyncTaskCache.invalidate(taskId); | ||
| taskNameToIdsMap.computeIfPresent(task.getTaskName(), (k, v) -> { | ||
| v.remove(taskId); | ||
| return v.isEmpty() ? null : v; | ||
| }); | ||
| } | ||
| } | ||
| } | ||
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if using map to manage task, maybe need a thread to clean up the expired task regularly. Using Caffeine LoadingCache may be better
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done