| /* |
| * 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.servicecomb.pack.alpha.spec.saga.db; |
| |
| import java.lang.invoke.MethodHandles; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import javax.transaction.Transactional; |
| import org.apache.servicecomb.pack.alpha.core.Command; |
| import org.apache.servicecomb.pack.alpha.core.CommandRepository; |
| import org.apache.servicecomb.pack.alpha.core.TaskStatus; |
| import org.apache.servicecomb.pack.alpha.core.TxEvent; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| public class SpringCommandRepository implements CommandRepository { |
| private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| private final TxEventEnvelopeRepository eventRepository; |
| private final CommandEntityRepository commandRepository; |
| |
| SpringCommandRepository(TxEventEnvelopeRepository eventRepository, CommandEntityRepository commandRepository) { |
| this.eventRepository = eventRepository; |
| this.commandRepository = commandRepository; |
| } |
| |
| @Override |
| public void saveCompensationCommands(String globalTxId) { |
| List<TxEvent> events = eventRepository |
| .findStartedEventsWithMatchingEndedButNotCompensatedEvents(globalTxId); |
| |
| Map<String, Command> commands = new LinkedHashMap<>(); |
| |
| for (TxEvent event : events) { |
| commands.computeIfAbsent(event.localTxId(), k -> new Command(event)); |
| } |
| |
| for (Command command : commands.values()) { |
| LOG.info("Saving compensation command {}", command); |
| try { |
| commandRepository.save(command); |
| } catch (Exception e) { |
| LOG.warn("Failed to save some command {}", command); |
| } |
| LOG.info("Saved compensation command {}", command); |
| } |
| } |
| |
| @Override |
| public void markCommandAsDone(String globalTxId, String localTxId) { |
| commandRepository.updateStatusByGlobalTxIdAndLocalTxId(TaskStatus.DONE.name(), globalTxId, localTxId); |
| } |
| |
| @Override |
| public List<Command> findUncompletedCommands(String globalTxId) { |
| return commandRepository.findByGlobalTxIdAndStatus(globalTxId, TaskStatus.NEW.name()); |
| } |
| |
| @Transactional |
| @Override |
| public List<Command> findFirstCommandToCompensate() { |
| List<Command> commands = commandRepository |
| .findFirstGroupByGlobalTxIdWithoutPendingOrderByIdDesc(); |
| |
| commands.forEach(command -> |
| commandRepository.updateStatusByGlobalTxIdAndLocalTxId( |
| TaskStatus.NEW.name(), |
| TaskStatus.PENDING.name(), |
| command.globalTxId(), |
| command.localTxId())); |
| |
| return commands; |
| } |
| } |