| 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.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.helix.HelixDataAccessor; |
| import org.apache.helix.HelixManager; |
| import org.apache.helix.NotificationContext; |
| import org.apache.helix.PropertyKey; |
| import org.apache.helix.model.CurrentState; |
| import org.apache.helix.model.Message; |
| import org.apache.helix.monitoring.mbeans.MessageQueueMonitor; |
| import org.apache.helix.monitoring.mbeans.ParticipantStatusMonitor; |
| |
| public class MockHelixTaskExecutor extends HelixTaskExecutor { |
| public static int duplicatedMessages = 0; |
| public static int extraStateTransition = 0; |
| public static int duplicatedMessagesInProgress = 0; |
| HelixManager manager; |
| |
| public MockHelixTaskExecutor(ParticipantStatusMonitor participantStatusMonitor, |
| MessageQueueMonitor messageQueueMonitor) { |
| super(participantStatusMonitor, messageQueueMonitor); |
| } |
| |
| @Override |
| public void onMessage(String instanceName, List<Message> messages, |
| NotificationContext changeContext) { |
| manager = changeContext.getManager(); |
| checkDuplicatedMessages(messages); |
| super.onMessage(instanceName, messages, changeContext); |
| } |
| |
| void checkDuplicatedMessages(List<Message> messages) { |
| HelixDataAccessor accessor = manager.getHelixDataAccessor(); |
| PropertyKey.Builder keyBuilder = accessor.keyBuilder(); |
| PropertyKey path = keyBuilder.currentStates(manager.getInstanceName(), manager.getSessionId()); |
| Map<String, CurrentState> currentStateMap = accessor.getChildValuesMap(path, true); |
| // Also add the task path |
| PropertyKey taskPath = |
| keyBuilder.taskCurrentStates(manager.getInstanceName(), manager.getSessionId()); |
| Map<String, CurrentState> taskCurrentStateMap = accessor.getChildValuesMap(taskPath, true); |
| taskCurrentStateMap.forEach(currentStateMap::putIfAbsent); |
| |
| Set<String> seenPartitions = new HashSet<>(); |
| for (Message message : messages) { |
| if (message.getMsgType().equals(Message.MessageType.STATE_TRANSITION.name())) { |
| String resource = message.getResourceName(); |
| String partition = message.getPartitionName(); |
| |
| //System.err.println(message.getMsgId()); |
| String key = resource + "-" + partition; |
| if (seenPartitions.contains(key)) { |
| //System.err.println("Duplicated message received for " + resource + ":" + partition); |
| duplicatedMessages++; |
| } |
| seenPartitions.add(key); |
| |
| String toState = message.getToState(); |
| String state = null; |
| if (currentStateMap.containsKey(resource)) { |
| CurrentState currentState = currentStateMap.get(resource); |
| state = currentState.getState(partition); |
| } |
| |
| if (toState.equals(state) && message.getMsgState() == Message.MessageState.NEW) { |
| // logger.error( |
| // "Extra message: " + message.getMsgId() + ", Partition is already in target state " |
| // + toState + " for " + resource + ":" + partition); |
| extraStateTransition++; |
| } |
| |
| String messageTarget = |
| getMessageTarget(message.getResourceName(), message.getPartitionName()); |
| |
| if (message.getMsgState() == Message.MessageState.NEW && |
| _messageTaskMap.containsKey(messageTarget)) { |
| String taskId = _messageTaskMap.get(messageTarget); |
| MessageTaskInfo messageTaskInfo = _taskMap.get(taskId); |
| Message existingMsg = messageTaskInfo.getTask().getMessage(); |
| if (existingMsg.getMsgId() != message.getMsgId()) |
| // logger.error("Duplicated message In Progress: " + message.getMsgId() |
| // + ", state transition in progress with message " + existingMsg.getMsgId() |
| // + " to " + toState + " for " + resource + ":" + partition); |
| duplicatedMessagesInProgress ++; |
| } |
| } |
| } |
| } |
| |
| public static void resetStats() { |
| duplicatedMessages = 0; |
| extraStateTransition = 0; |
| duplicatedMessagesInProgress = 0; |
| } |
| } |