| /* |
| * 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 java.util.List; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| import org.apache.ambari.server.orm.dao.PrivilegeDAO; |
| import org.apache.ambari.server.orm.dao.ViewDAO; |
| import org.apache.ambari.server.orm.dao.ViewInstanceDAO; |
| import org.apache.ambari.server.orm.entities.PrincipalEntity; |
| import org.apache.ambari.server.orm.entities.PrivilegeEntity; |
| import org.apache.ambari.server.orm.entities.ViewEntity; |
| import org.apache.ambari.server.orm.entities.ViewInstanceEntity; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Singleton |
| public class ViewInstanceOperationHandler { |
| private final static Logger LOG = LoggerFactory.getLogger(ViewInstanceOperationHandler.class); |
| |
| @Inject |
| ViewDAO viewDAO; |
| |
| /** |
| * View instance data access object. |
| */ |
| @Inject |
| ViewInstanceDAO instanceDAO; |
| |
| /** |
| * Privilege data access object. |
| */ |
| @Inject |
| PrivilegeDAO privilegeDAO; |
| |
| // remove a privilege entity. |
| private void removePrivilegeEntity(PrivilegeEntity privilegeEntity) { |
| |
| PrincipalEntity principalEntity = privilegeEntity.getPrincipal(); |
| if (principalEntity != null) { |
| principalEntity.removePrivilege(privilegeEntity); |
| } |
| |
| privilegeDAO.remove(privilegeEntity); |
| } |
| |
| public void uninstallViewInstance(ViewInstanceEntity instanceEntity) { |
| LOG.info("uninstalling ViewInstance : {} ", instanceEntity); |
| ViewEntity viewEntity = viewDAO.findByName(instanceEntity.getViewName()); |
| LOG.info("viewEntity received corresponding to the view entity : {} ", viewEntity); |
| |
| if (viewEntity != null) { |
| String instanceName = instanceEntity.getName(); |
| String viewName = viewEntity.getCommonName(); |
| String version = viewEntity.getVersion(); |
| |
| ViewInstanceEntity instanceDefinition = instanceDAO.findByName(instanceEntity.getViewName(), instanceEntity.getName()); //getInstanceDefinition(viewName, version, instanceName); |
| LOG.debug("view instance entity received from database : {}", instanceDefinition); |
| if (instanceDefinition != null) { |
| if (instanceDefinition.isXmlDriven()) { |
| throw new IllegalStateException("View instances defined via xml can't be deleted through api requests"); |
| } |
| List<PrivilegeEntity> instancePrivileges = privilegeDAO.findByResourceId(instanceEntity.getResource().getId()); |
| LOG.info("Removing privilege entities : {}", instancePrivileges); |
| for (PrivilegeEntity privilegeEntity : instancePrivileges) { |
| removePrivilegeEntity(privilegeEntity); |
| } |
| LOG.info("Deleting view instance : view name : {}, version : {}, instanceName : {}", viewName, version, instanceName); |
| instanceDAO.remove(instanceDefinition); |
| }else{ |
| throw new IllegalStateException("View instance '" + instanceEntity.getName() + "' not found."); |
| } |
| }else{ |
| throw new IllegalStateException("View '" + instanceEntity.getViewName() + "' not found corresponding to view instance '" + instanceEntity.getName() + "'"); |
| } |
| } |
| } |