| /* |
| * 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.management.internal.configuration.functions; |
| |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.cache.execute.FunctionContext; |
| import org.apache.geode.distributed.internal.InternalConfigurationPersistenceService; |
| import org.apache.geode.distributed.internal.InternalLocator; |
| import org.apache.geode.internal.cache.execute.InternalFunction; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| import org.apache.geode.management.internal.configuration.messages.ConfigurationResponse; |
| |
| public class GetClusterConfigurationFunction implements InternalFunction { |
| private static final Logger logger = LogService.getLogger(); |
| |
| @Override |
| public void execute(FunctionContext context) { |
| Set<String> groups = (Set<String>) context.getArguments(); |
| InternalLocator internalLocator = InternalLocator.getLocator(); |
| logger.info("Received request for configuration: {}", groups); |
| |
| // Return exception to the caller so startup fails fast. |
| if (!internalLocator.isSharedConfigurationEnabled()) { |
| String errorMessage = "The cluster configuration service is not enabled on this member."; |
| logger.warn(errorMessage); |
| context.getResultSender().lastResult(new IllegalStateException(errorMessage)); |
| return; |
| } |
| |
| // Shared configuration enabled. |
| if (internalLocator.isSharedConfigurationRunning()) { |
| // Cluster configuration is up and running already. |
| InternalConfigurationPersistenceService clusterConfigurationService = |
| internalLocator.getConfigurationPersistenceService(); |
| |
| try { |
| ConfigurationResponse response = |
| clusterConfigurationService.createConfigurationResponse(groups); |
| context.getResultSender().lastResult(response); |
| } catch (Exception exception) { |
| logger.warn("Unable to retrieve the cluster configuration", exception); |
| context.getResultSender().lastResult(exception); |
| } |
| } else { |
| // Cluster configuration service is starting up. Return null so callers can decide whether |
| // to fail fast, or wait and retry later. |
| context.getResultSender().lastResult(null); |
| } |
| } |
| } |