| /** |
| * 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.atlas.hive.hook.events; |
| |
| import org.apache.atlas.hive.hook.AtlasHiveHookContext; |
| import org.apache.atlas.model.instance.AtlasEntity; |
| import org.apache.atlas.model.instance.AtlasEntity.AtlasEntitiesWithExtInfo; |
| import org.apache.atlas.model.notification.HookNotification; |
| import org.apache.atlas.model.notification.HookNotification.EntityCreateRequestV2; |
| import org.apache.commons.collections.CollectionUtils; |
| import org.apache.hadoop.hive.metastore.api.Database; |
| import org.apache.hadoop.hive.metastore.events.CreateDatabaseEvent; |
| import org.apache.hadoop.hive.ql.hooks.Entity; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static org.apache.atlas.hive.bridge.HiveMetaStoreBridge.getDatabaseName; |
| import static org.apache.hadoop.hive.ql.hooks.Entity.Type.DATABASE; |
| |
| public class CreateDatabase extends BaseHiveEvent { |
| private static final Logger LOG = LoggerFactory.getLogger(CreateDatabase.class); |
| |
| public CreateDatabase(AtlasHiveHookContext context) { |
| super(context); |
| } |
| |
| @Override |
| public List<HookNotification> getNotificationMessages() throws Exception { |
| List<HookNotification> ret = null; |
| AtlasEntitiesWithExtInfo entities = context.isMetastoreHook() ? getHiveMetastoreEntities() : getHiveEntities(); |
| |
| if (entities != null && CollectionUtils.isNotEmpty(entities.getEntities())) { |
| ret = Collections.singletonList(new EntityCreateRequestV2(getUserName(), entities)); |
| } |
| |
| return ret; |
| } |
| |
| public AtlasEntitiesWithExtInfo getHiveMetastoreEntities() throws Exception { |
| AtlasEntitiesWithExtInfo ret = new AtlasEntitiesWithExtInfo(); |
| CreateDatabaseEvent dbEvent = (CreateDatabaseEvent) context.getMetastoreEvent(); |
| Database db = dbEvent.getDatabase(); |
| |
| if (db != null) { |
| db = context.getMetastoreHandler().get_database(db.getName()); |
| } |
| |
| if (db != null) { |
| AtlasEntity dbEntity = toDbEntity(db); |
| |
| ret.addEntity(dbEntity); |
| } else { |
| LOG.error("CreateDatabase.getEntities(): failed to retrieve db"); |
| } |
| |
| addProcessedEntities(ret); |
| |
| return ret; |
| } |
| |
| public AtlasEntitiesWithExtInfo getHiveEntities() throws Exception { |
| AtlasEntitiesWithExtInfo ret = new AtlasEntitiesWithExtInfo(); |
| |
| for (Entity entity : getOutputs()) { |
| if (entity.getType() == DATABASE) { |
| Database db = entity.getDatabase(); |
| |
| if (db != null) { |
| db = getHive().getDatabase(getDatabaseName(db)); |
| } |
| |
| if (db != null) { |
| AtlasEntity dbEntity = toDbEntity(db); |
| AtlasEntity dbDDLEntity = createHiveDDLEntity(dbEntity); |
| |
| ret.addEntity(dbEntity); |
| |
| if (dbDDLEntity != null) { |
| ret.addEntity(dbDDLEntity); |
| } |
| |
| AtlasEntity dbLocationEntity = createHiveLocationEntity(dbEntity, ret); |
| if (dbLocationEntity != null) { |
| ret.addEntity(dbLocationEntity); |
| } |
| } else { |
| LOG.error("CreateDatabase.getEntities(): failed to retrieve db"); |
| } |
| } |
| } |
| |
| addProcessedEntities(ret); |
| |
| return ret; |
| } |
| } |