| /* |
| * 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.knox.gateway.topology.discovery.cm; |
| |
| import org.apache.knox.gateway.i18n.messages.MessagesFactory; |
| import org.apache.knox.gateway.topology.discovery.ServiceDiscovery; |
| import org.apache.knox.gateway.topology.discovery.cm.collector.ServiceURLCollectors; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * ClouderaManager-based service discovery cluster model implementation. |
| */ |
| public class ClouderaManagerCluster implements ServiceDiscovery.Cluster { |
| |
| private static final ClouderaManagerServiceDiscoveryMessages log = |
| MessagesFactory.get(ClouderaManagerServiceDiscoveryMessages.class); |
| |
| private String name; |
| |
| private Map<String, List<ServiceModel>> serviceModels = new HashMap<>(); |
| |
| ClouderaManagerCluster(String clusterName) { |
| this.name = clusterName; |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public List<String> getServiceURLs(String serviceName) { |
| return getServiceURLs(serviceName, null); |
| } |
| |
| @Override |
| public List<String> getServiceURLs(String serviceName, Map<String, String> serviceParams) { |
| List<String> urls = new ArrayList<>(); |
| |
| if (serviceModels.containsKey(serviceName)) { |
| Map<String, List<ServiceModel>> roleModels = new HashMap<>(); |
| for (ServiceModel model : serviceModels.get(serviceName)) { |
| |
| // Check for discovery qualifier attributes of the service model |
| boolean isMatchingModel = true; |
| if (serviceParams != null) { |
| for (Map.Entry<String, String> serviceParam : serviceParams.entrySet()) { |
| String serviceParamKey = serviceParam.getKey(); |
| // If it's a qualifying service param, then perform the qualification check |
| if (serviceParamKey.startsWith(ServiceModel.QUALIFYING_SERVICE_PARAM_PREFIX)) { |
| if (!serviceParam.getValue().equals(model.getQualifyingServiceParam(serviceParamKey))) { |
| isMatchingModel = false; |
| log.qualifyingServiceParamMismatch(serviceName, |
| serviceParamKey, |
| serviceParam.getValue(), |
| model.getQualifyingServiceParam(serviceParamKey)); |
| break; |
| } |
| } |
| } |
| } |
| |
| if (isMatchingModel) { |
| roleModels.computeIfAbsent(model.getRoleType(), l -> new ArrayList<>()).add(model); |
| } |
| } |
| |
| urls.addAll((ServiceURLCollectors.getCollector(serviceName)).collect(roleModels)); |
| } |
| return urls; |
| } |
| |
| @Override |
| public ZooKeeperConfig getZooKeeperConfiguration(String serviceName) { |
| return null; |
| } |
| |
| void addServiceModels(Set<ServiceModel> serviceModels) { |
| for (ServiceModel model : serviceModels) { |
| this.serviceModels.computeIfAbsent(model.getService(), l -> new ArrayList<>()).add(model); |
| } |
| } |
| |
| public Map<String, List<ServiceModel>> getServiceModels() { |
| return serviceModels; |
| } |
| |
| } |