| /** |
| * 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.repository.patches; |
| |
| import org.apache.atlas.exception.AtlasBaseException; |
| import org.apache.atlas.model.typedef.AtlasStructDef.AtlasAttributeDef; |
| import org.apache.atlas.pc.WorkItemManager; |
| import org.apache.atlas.repository.graphdb.AtlasGraph; |
| import org.apache.atlas.repository.graphdb.AtlasVertex; |
| import org.apache.atlas.type.AtlasEntityType; |
| import org.apache.atlas.type.AtlasStructType.AtlasAttribute; |
| import org.apache.commons.collections.CollectionUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import static org.apache.atlas.model.patches.AtlasPatch.PatchStatus.APPLIED; |
| import static org.apache.atlas.repository.Constants.ENTITY_TYPE_PROPERTY_KEY; |
| |
| public class AddMandatoryAttributesPatch extends AtlasPatchHandler { |
| private static final Logger LOG = LoggerFactory.getLogger(AddMandatoryAttributesPatch.class); |
| |
| private static final String PATCH_ID = "JAVA_PATCH_0000_008"; |
| private static final String PATCH_DESCRIPTION = "Add mandatory attributes for all existing entities for given typeName"; |
| |
| private final PatchContext context; |
| private final String typeName; |
| private final List<AtlasAttributeDef> attributesToAdd; |
| |
| public AddMandatoryAttributesPatch(PatchContext context, String typedefPatchId, String typeName, List<AtlasAttributeDef> attributesToAdd) { |
| super(context.getPatchRegistry(), PATCH_ID + "_" + typedefPatchId, PATCH_DESCRIPTION); |
| |
| this.context = context; |
| this.typeName = typeName; |
| this.attributesToAdd = attributesToAdd; |
| } |
| |
| @Override |
| public void apply() throws AtlasBaseException { |
| LOG.info("==> MandatoryAttributePatch.apply(): patchId={}", getPatchId()); |
| |
| ConcurrentPatchProcessor patchProcessor = new AddMandatoryAttributesPatchProcessor(context, typeName, attributesToAdd); |
| |
| patchProcessor.apply(); |
| |
| setStatus(APPLIED); |
| |
| LOG.info("<== MandatoryAttributePatch.apply(): patchId={}, status={}", getPatchId(), getStatus()); |
| } |
| |
| public static class AddMandatoryAttributesPatchProcessor extends ConcurrentPatchProcessor { |
| private final String typeName; |
| private final Set<String> typeAndAllSubTypes; |
| private final List<AtlasAttributeDef> attributesToAdd; |
| |
| public AddMandatoryAttributesPatchProcessor(PatchContext context, String typeName, List<AtlasAttributeDef> attributesToAdd) { |
| super(context); |
| |
| AtlasEntityType entityType = getTypeRegistry().getEntityTypeByName(typeName); |
| |
| this.typeName = typeName; |
| this.attributesToAdd = attributesToAdd; |
| |
| if (entityType != null) { |
| this.typeAndAllSubTypes = entityType.getTypeAndAllSubTypes(); |
| } else { |
| LOG.warn("AddMandatoryAttributesPatchProcessor(): failed to find entity-type {}", typeName); |
| |
| this.typeAndAllSubTypes = Collections.emptySet(); |
| } |
| } |
| |
| @Override |
| public void submitVerticesToUpdate(WorkItemManager manager) { |
| if (CollectionUtils.isNotEmpty(typeAndAllSubTypes)) { |
| LOG.info("Entity types to be updated with mandatory attributes: {}", typeAndAllSubTypes.size()); |
| |
| for (String typeName : typeAndAllSubTypes) { |
| LOG.info("finding entities of type {}", typeName); |
| |
| AtlasGraph graph = getGraph(); |
| Iterable<Object> vertexIds = graph.query().has(ENTITY_TYPE_PROPERTY_KEY, typeName).vertexIds(); |
| int count = 0; |
| |
| for (Iterator<Object> iterator = vertexIds.iterator(); iterator.hasNext(); ) { |
| Object vertexId = iterator.next(); |
| |
| manager.checkProduce(vertexId); |
| |
| count++; |
| } |
| |
| LOG.info("found {} entities of type {}", count, typeName); |
| } |
| } |
| } |
| |
| @Override |
| protected void processVertexItem(Long vertexId, AtlasVertex vertex, String typeName, AtlasEntityType entityType) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("==> AddMandatoryAttributesPatchProcessor.processVertexItem(typeName={}, vertexId={})", typeName, vertexId); |
| } |
| |
| for (AtlasAttributeDef attributeDef : attributesToAdd) { |
| AtlasAttribute attribute = entityType.getAttribute(attributeDef.getName()); |
| |
| if (attribute != null) { |
| Object existingValue = vertex.getProperty(attribute.getVertexPropertyName(), Object.class); |
| |
| if (existingValue == null) { |
| vertex.setProperty(attribute.getVertexPropertyName(), attributeDef.getDefaultValue()); |
| } |
| } |
| } |
| |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("<== AddMandatoryAttributesPatchProcessor.processVertexItem(typeName={}, vertexId={})", typeName, vertexId); |
| } |
| } |
| |
| @Override |
| protected void prepareForExecution() { |
| //do nothing |
| } |
| } |
| } |