| /** |
| * 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.entitytransform; |
| |
| import org.apache.atlas.model.instance.AtlasEntity; |
| import org.apache.commons.lang.StringUtils; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import static org.apache.atlas.entitytransform.TransformationConstants.*; |
| |
| public class HiveDatabaseEntityHandler extends BaseEntityHandler { |
| static final List<String> CUSTOM_TRANSFORM_ATTRIBUTES = Arrays.asList(HIVE_DB_NAME_ATTRIBUTE, HIVE_DB_CLUSTER_NAME_ATTRIBUTE); |
| |
| public HiveDatabaseEntityHandler(List<AtlasEntityTransformer> transformers) { |
| super(transformers); |
| } |
| |
| @Override |
| public AtlasTransformableEntity getTransformableEntity(AtlasEntity entity) { |
| return isHiveDatabaseEntity(entity) ? new HiveDatabaseEntity(entity) : null; |
| } |
| |
| |
| private boolean isHiveDatabaseEntity(AtlasEntity entity) { |
| return StringUtils.equals(entity.getTypeName(), HIVE_DATABASE); |
| } |
| |
| private static class HiveDatabaseEntity extends AtlasTransformableEntity { |
| private String databaseName; |
| private String clusterName; |
| private boolean isCustomAttributeUpdated = false; |
| |
| public HiveDatabaseEntity(AtlasEntity entity) { |
| super(entity); |
| |
| this.databaseName = (String) entity.getAttribute(NAME_ATTRIBUTE); |
| |
| String qualifiedName = (String) entity.getAttribute(QUALIFIED_NAME_ATTRIBUTE); |
| |
| if (qualifiedName != null) { |
| int clusterSeparatorIdx = qualifiedName.lastIndexOf(CLUSTER_DELIMITER); |
| |
| this.clusterName = clusterSeparatorIdx != -1 ? qualifiedName.substring(clusterSeparatorIdx + 1) : ""; |
| } else { |
| this.clusterName = ""; |
| } |
| } |
| |
| @Override |
| public Object getAttribute(EntityAttribute attribute) { |
| switch (attribute.getAttributeKey()) { |
| case HIVE_DB_NAME_ATTRIBUTE: |
| return databaseName; |
| |
| case HIVE_DB_CLUSTER_NAME_ATTRIBUTE: |
| return clusterName; |
| } |
| |
| return super.getAttribute(attribute); |
| } |
| |
| @Override |
| public void setAttribute(EntityAttribute attribute, String attributeValue) { |
| switch (attribute.getAttributeKey()) { |
| case HIVE_DB_NAME_ATTRIBUTE: |
| databaseName = attributeValue; |
| |
| isCustomAttributeUpdated = true; |
| break; |
| |
| case HIVE_DB_CLUSTER_NAME_ATTRIBUTE: |
| clusterName = attributeValue; |
| |
| isCustomAttributeUpdated = true; |
| break; |
| |
| default: |
| super.setAttribute(attribute, attributeValue); |
| break; |
| } |
| } |
| |
| @Override |
| public void transformComplete() { |
| if (isCustomAttributeUpdated) { |
| entity.setAttribute(NAME_ATTRIBUTE, databaseName); |
| entity.setAttribute(CLUSTER_NAME_ATTRIBUTE, clusterName); |
| entity.setAttribute(QUALIFIED_NAME_ATTRIBUTE, toQualifiedName()); |
| } |
| } |
| |
| private String toQualifiedName() { |
| return String.format("%s@%s", databaseName, clusterName); |
| } |
| } |
| } |