| /* |
| * 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.eventbridge.adapter.runtime.service; |
| |
| import com.google.common.collect.Maps; |
| import com.google.common.collect.Sets; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import org.apache.rocketmq.eventbridge.adapter.runtime.boot.common.TargetRunnerListener; |
| import org.apache.rocketmq.eventbridge.adapter.runtime.common.entity.TargetRunnerConfig; |
| import org.apache.rocketmq.eventbridge.adapter.runtime.common.entity.SubscribeRunnerKeys; |
| import org.springframework.stereotype.Service; |
| import org.springframework.util.CollectionUtils; |
| |
| @Service |
| public abstract class AbstractTargetRunnerConfigObserver implements TargetRunnerConfigObserver { |
| |
| private Set<TargetRunnerConfig> targetRunnerConfigs = Sets.newHashSet(); |
| |
| /** |
| * All listeners to trigger while config change. |
| */ |
| private Set<TargetRunnerListener> targetRunnerConfigListeners = new HashSet<>(); |
| |
| public Set<TargetRunnerConfig> getTargetRunnerConfig() { |
| return targetRunnerConfigs; |
| } |
| |
| @Override |
| public Set<SubscribeRunnerKeys> getSubscribeRunnerKeys() { |
| if (CollectionUtils.isEmpty(targetRunnerConfigs)) { |
| return null; |
| } |
| return targetRunnerConfigs.stream().map(item -> { |
| SubscribeRunnerKeys subscribeRunnerKeys = new SubscribeRunnerKeys(); |
| subscribeRunnerKeys.setRunnerName(item.getName()); |
| subscribeRunnerKeys.setAccountId(item.getAccountId()); |
| subscribeRunnerKeys.setEventBusName(item.getEventBusName()); |
| return subscribeRunnerKeys; |
| }).collect(Collectors.toSet()); |
| } |
| |
| public abstract Set<TargetRunnerConfig> getLatestTargetRunnerConfig(); |
| |
| @Override |
| public void registerListener(TargetRunnerListener listener) { |
| this.targetRunnerConfigListeners.add(listener); |
| } |
| |
| void onAddTargetRunner(TargetRunnerConfig targetRunnerConfig) { |
| this.targetRunnerConfigs.add(targetRunnerConfig); |
| if (CollectionUtils.isEmpty(this.targetRunnerConfigListeners)) { |
| return; |
| } |
| for (TargetRunnerListener listener : this.targetRunnerConfigListeners) { |
| listener.onAddTargetRunner(targetRunnerConfig); |
| } |
| } |
| |
| /** |
| * Call when the old target runner updated. |
| * |
| * @param targetRunnerConfig |
| */ |
| void onUpdateTargetRunner(TargetRunnerConfig targetRunnerConfig) { |
| this.targetRunnerConfigs.add(targetRunnerConfig); |
| if (CollectionUtils.isEmpty(this.targetRunnerConfigListeners)) { |
| return; |
| } |
| for (TargetRunnerListener listener : this.targetRunnerConfigListeners) { |
| listener.onUpdateTargetRunner(targetRunnerConfig); |
| } |
| } |
| |
| /** |
| * Call when the old target runner deleted from runtimer. |
| * |
| * @param targetRunnerConfig |
| */ |
| void onDeleteTargetRunner(TargetRunnerConfig targetRunnerConfig) { |
| this.targetRunnerConfigs.remove(targetRunnerConfig); |
| if (CollectionUtils.isEmpty(this.targetRunnerConfigListeners)) { |
| return; |
| } |
| for (TargetRunnerListener listener : this.targetRunnerConfigListeners) { |
| listener.onDeleteTargetRunner(targetRunnerConfig); |
| } |
| } |
| |
| protected void diff() { |
| Map<String, TargetRunnerConfig> lastMap = toMap(this.getTargetRunnerConfig()); |
| Map<String, TargetRunnerConfig> latestMap = toMap(this.getLatestTargetRunnerConfig()); |
| lastMap.entrySet().forEach(entry -> { |
| TargetRunnerConfig latest = latestMap.get(entry.getKey()); |
| if (latest == null) { |
| this.onDeleteTargetRunner(entry.getValue()); |
| } else if (!latest.equals(entry.getValue())) { |
| this.onUpdateTargetRunner(entry.getValue()); |
| } |
| }); |
| |
| latestMap.entrySet().forEach(entry -> { |
| TargetRunnerConfig latest = lastMap.get(entry.getKey()); |
| if (latest == null) { |
| this.onAddTargetRunner(entry.getValue()); |
| } |
| }); |
| } |
| |
| protected Map<String, TargetRunnerConfig> toMap(Set<TargetRunnerConfig> targetRunnerConfigs) { |
| if (targetRunnerConfigs == null || targetRunnerConfigs.isEmpty()) { |
| return Maps.newHashMapWithExpectedSize(0); |
| } |
| Map<String, TargetRunnerConfig> map = Maps.newHashMap(); |
| targetRunnerConfigs.forEach(entry -> map.put(entry.getName(), entry)); |
| return map; |
| } |
| } |