| /* |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ambari; |
| |
| import org.apache.knox.gateway.i18n.messages.MessagesFactory; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| public abstract class ResourceManagerURLCreatorBase implements ServiceURLCreator { |
| |
| static final String CONFIG_SERVICE = "YARN"; |
| static final String CONFIG_TYPE = "yarn-site"; |
| |
| static final String WEBAPP_ADDRESS_HTTP = "yarn.resourcemanager.webapp.address"; |
| static final String WEBAPP_ADDRESS_HTTPS = "yarn.resourcemanager.webapp.https.address"; |
| |
| static final String SCHEME_HTTP = "http"; |
| static final String SCHEME_HTTPS = "https"; |
| |
| protected AmbariServiceDiscoveryMessages log = MessagesFactory.get(AmbariServiceDiscoveryMessages.class); |
| |
| private AmbariCluster cluster; |
| |
| |
| @Override |
| public void init(AmbariCluster cluster) { |
| this.cluster = cluster; |
| } |
| |
| @Override |
| public List<String> create(String service, Map<String, String> serviceParams) { |
| List<String> urls = new ArrayList<>(); |
| |
| if (getTargetService().equals(service)) { |
| AmbariCluster.ServiceConfiguration sc = cluster.getServiceConfiguration(CONFIG_SERVICE, CONFIG_TYPE); |
| if (sc != null) { |
| Map<String, String> configProps = sc.getProperties(); |
| |
| String httpPolicy = getHttpPolicy(configProps); |
| |
| // First, check if it's HA config |
| boolean isHAEnabled = Boolean.parseBoolean(configProps.get("yarn.resourcemanager.ha.enabled")); |
| if (isHAEnabled) { |
| String rmSet = configProps.get("yarn.resourcemanager.ha.rm-ids"); |
| if (rmSet != null) { |
| String[] rmIds = rmSet.split(","); |
| for (String rmId : rmIds) { |
| String address = configProps.get(getWebAppAddressPropertyName(httpPolicy) + "." + rmId.trim()); |
| if (address != null && !address.isEmpty()) { |
| urls.add(createURL(address)); |
| } |
| } |
| } |
| } |
| |
| // If no HA URLs were identified, then add the default webapp address URL |
| if (urls.isEmpty()) { |
| urls.add(createURL(configProps.get(getWebAppAddressPropertyName(httpPolicy)))); |
| } |
| |
| } |
| } |
| |
| return urls; |
| } |
| |
| |
| protected abstract String createURL(String address); |
| |
| |
| String getURLScheme() { |
| return isHttps(getHttpPolicy()) ? SCHEME_HTTPS : SCHEME_HTTP; |
| } |
| |
| |
| private String getHttpPolicy() { |
| String httpPolicy = null; |
| AmbariCluster.ServiceConfiguration sc = cluster.getServiceConfiguration(CONFIG_SERVICE, CONFIG_TYPE); |
| if (sc != null) { |
| httpPolicy = getHttpPolicy(sc.getProperties()); |
| } |
| return httpPolicy; |
| } |
| |
| private String getHttpPolicy(Map<String, String> configProps) { |
| return configProps.get("yarn.http.policy"); |
| } |
| |
| private boolean isHttps(String httpPolicy) { |
| return "HTTPS_ONLY".equalsIgnoreCase(httpPolicy); |
| } |
| |
| private String getWebAppAddressPropertyName(String httpPolicy) { |
| return isHttps(httpPolicy) ? WEBAPP_ADDRESS_HTTPS : WEBAPP_ADDRESS_HTTP; |
| } |
| |
| } |