| /** |
| * 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.ambari.server.view; |
| |
| import org.apache.ambari.server.AmbariException; |
| import org.apache.ambari.server.ClusterNotFoundException; |
| import org.apache.ambari.server.configuration.Configuration; |
| import org.apache.ambari.server.orm.dao.RemoteAmbariClusterDAO; |
| import org.apache.ambari.server.orm.entities.RemoteAmbariClusterEntity; |
| import org.apache.ambari.server.orm.entities.RemoteAmbariClusterServiceEntity; |
| import org.apache.ambari.view.AmbariHttpException; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * Registry for Remote Ambari Cluster |
| */ |
| @Singleton |
| public class RemoteAmbariClusterRegistry { |
| |
| private ConcurrentHashMap<Long,RemoteAmbariCluster> clusterMap = new ConcurrentHashMap<Long,RemoteAmbariCluster>(); |
| |
| @Inject |
| private RemoteAmbariClusterDAO remoteAmbariClusterDAO; |
| |
| @Inject |
| private Configuration configuration; |
| |
| public RemoteAmbariCluster get(Long clusterId) throws MalformedURLException, ClusterNotFoundException { |
| RemoteAmbariCluster remoteAmbariCluster = clusterMap.get(clusterId); |
| if (remoteAmbariCluster == null) { |
| RemoteAmbariCluster cluster = getCluster(clusterId); |
| RemoteAmbariCluster oldCluster = clusterMap.putIfAbsent(clusterId, cluster); |
| if (oldCluster == null) remoteAmbariCluster = cluster; |
| else remoteAmbariCluster = oldCluster; |
| } |
| return remoteAmbariCluster; |
| } |
| |
| |
| private RemoteAmbariCluster getCluster(Long clusterId) throws MalformedURLException, ClusterNotFoundException { |
| RemoteAmbariClusterEntity remoteAmbariClusterEntity = remoteAmbariClusterDAO.findById(clusterId); |
| if (remoteAmbariClusterEntity == null) { |
| throw new ClusterNotFoundException(clusterId); |
| } |
| RemoteAmbariCluster remoteAmbariCluster = new RemoteAmbariCluster(remoteAmbariClusterEntity, configuration); |
| return remoteAmbariCluster; |
| } |
| |
| /** |
| * Update the remote cluster properties |
| * |
| * @param entity |
| */ |
| public void update(RemoteAmbariClusterEntity entity) { |
| remoteAmbariClusterDAO.update(entity); |
| clusterMap.remove(entity.getId()); |
| } |
| |
| /** |
| * Remove the cluster entity from registry and database |
| * |
| * @param entity |
| */ |
| public void delete(RemoteAmbariClusterEntity entity) { |
| remoteAmbariClusterDAO.delete(entity); |
| clusterMap.remove(entity.getId()); |
| } |
| |
| /** |
| * Save Remote Cluster Entity after setting services. |
| * |
| * @param entity |
| * @param update |
| * @throws IOException |
| * @throws AmbariHttpException |
| */ |
| public void saveOrUpdate(RemoteAmbariClusterEntity entity, boolean update) throws IOException, AmbariHttpException { |
| |
| RemoteAmbariCluster cluster = new RemoteAmbariCluster(entity, configuration); |
| Set<String> services = cluster.getServices(); |
| |
| if (!cluster.isAmbariOrClusterAdmin()) { |
| throw new AmbariException("User must be Ambari or Cluster Adminstrator."); |
| } |
| |
| Collection<RemoteAmbariClusterServiceEntity> serviceEntities = new ArrayList<RemoteAmbariClusterServiceEntity>(); |
| |
| for (String service : services) { |
| RemoteAmbariClusterServiceEntity serviceEntity = new RemoteAmbariClusterServiceEntity(); |
| serviceEntity.setServiceName(service); |
| serviceEntity.setCluster(entity); |
| serviceEntities.add(serviceEntity); |
| } |
| |
| entity.setServices(serviceEntities); |
| |
| if (update) { |
| update(entity); |
| } else { |
| remoteAmbariClusterDAO.save(entity); |
| } |
| } |
| |
| } |