| /* |
| * 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.geode.internal.cache; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.ServiceConfigurationError; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.cache.Cache; |
| import org.apache.geode.cache.wan.GatewaySender; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| |
| public class TXLastEventInTransactionUtils { |
| private static final Logger logger = LogService.getLogger(); |
| |
| /** |
| * @param callbacks list of events belonging to a transaction |
| * |
| * @return the last event of the transaction. |
| * If the regions to which the events belong do not have senders |
| * that group transactions it returns null. |
| * If the regions to which the |
| * events belong have different sets of senders that group transactions |
| * then it throws a ServiceConfigurationError exception. |
| */ |
| public static EntryEventImpl getLastTransactionEvent(List<EntryEventImpl> callbacks, |
| Cache cache) |
| throws ServiceConfigurationError { |
| if (checkNoSendersGroupTransactionEvents(callbacks, cache)) { |
| return null; |
| } |
| |
| List<Set> senderIdsPerEvent = getGroupingSendersPerEvent(callbacks, cache); |
| if (senderIdsPerEvent.stream().distinct().count() > 1) { |
| String info = eventsAndSendersPerEventToString(callbacks, senderIdsPerEvent); |
| throw new ServiceConfigurationError( |
| "Not all events go to the same senders that group transactions. " + info); |
| } |
| |
| return callbacks.get(callbacks.size() - 1); |
| } |
| |
| private static String eventsAndSendersPerEventToString(List<EntryEventImpl> callbacks, |
| List<Set> senderIdsPerEvent) { |
| StringBuilder buf = new StringBuilder(); |
| for (int i = 0; i < callbacks.size(); i++) { |
| buf.append("Event["); |
| buf.append(i); |
| buf.append("]: "); |
| buf.append(callbacks.get(i)); |
| buf.append(", senders for Event["); |
| buf.append(i); |
| buf.append("]: "); |
| buf.append(senderIdsPerEvent.get(i)); |
| buf.append("; "); |
| } |
| return buf.toString(); |
| } |
| |
| private static boolean checkNoSendersGroupTransactionEvents(List<EntryEventImpl> callbacks, |
| Cache cache) throws ServiceConfigurationError { |
| for (String senderId : getSenderIdsForEvents(callbacks)) { |
| GatewaySender sender = cache.getGatewaySender(senderId); |
| if (sender == null) { |
| logger.error("No sender found for {}", senderId); |
| throw new ServiceConfigurationError("No information for senderId: " + senderId); |
| } |
| if (sender.mustGroupTransactionEvents()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| private static Set<String> getSenderIdsForEvents(List<EntryEventImpl> callbacks) { |
| return callbacks |
| .stream() |
| .map(event -> event.getRegion().getAllGatewaySenderIds()) |
| .flatMap(Collection::stream) |
| .collect(Collectors.toSet()); |
| } |
| |
| private static List<Set> getGroupingSendersPerEvent(List<EntryEventImpl> callbacks, |
| Cache cache) throws ServiceConfigurationError { |
| List<Set> senderIdsPerEvent = callbacks |
| .stream() |
| .map((event) -> event.getRegion().getAllGatewaySenderIds().stream() |
| .filter(senderId -> doesSenderGroupTransactionEvents(cache, senderId)) |
| .collect( |
| Collectors.toSet())) |
| .collect(Collectors.toList()); |
| |
| return senderIdsPerEvent; |
| } |
| |
| private static boolean doesSenderGroupTransactionEvents(Cache cache, String senderId) |
| throws ServiceConfigurationError { |
| GatewaySender sender = cache.getGatewaySender(senderId); |
| if (sender == null) { |
| throw new ServiceConfigurationError("No information for senderId: " + senderId); |
| } |
| return sender.mustGroupTransactionEvents(); |
| } |
| } |