| /** |
| * 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.pc.WorkItemManager; |
| import org.apache.atlas.repository.Constants; |
| import org.apache.atlas.repository.graphdb.AtlasEdge; |
| import org.apache.atlas.repository.graphdb.AtlasEdgeDirection; |
| import org.apache.atlas.repository.graphdb.AtlasGraph; |
| import org.apache.atlas.repository.graphdb.AtlasVertex; |
| import org.apache.atlas.type.AtlasClassificationType; |
| import org.apache.atlas.type.AtlasEntityType; |
| import org.apache.atlas.type.AtlasTypeRegistry; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import static org.apache.atlas.model.patches.AtlasPatch.PatchStatus.APPLIED; |
| |
| public class ClassificationTextPatch extends AtlasPatchHandler { |
| private static final Logger LOG = LoggerFactory.getLogger(ClassificationTextPatch.class); |
| |
| private static final String PATCH_ID = "JAVA_PATCH_0000_002"; |
| private static final String PATCH_DESCRIPTION = "Populates Classification Text attribute for entities from classifications applied on them."; |
| |
| private final PatchContext context; |
| |
| public ClassificationTextPatch(PatchContext context) { |
| super(context.getPatchRegistry(), PATCH_ID, PATCH_DESCRIPTION); |
| |
| this.context = context; |
| } |
| |
| @Override |
| public void apply() throws AtlasBaseException { |
| ConcurrentPatchProcessor patchProcessor = new ClassificationTextPatchProcessor(context); |
| |
| patchProcessor.apply(); |
| |
| setStatus(APPLIED); |
| |
| LOG.info("ClassificationTextPatch.apply(): patchId={}, status={}", getPatchId(), getStatus()); |
| } |
| |
| public static class ClassificationTextPatchProcessor extends ConcurrentPatchProcessor { |
| |
| public ClassificationTextPatchProcessor(PatchContext context) { |
| super(context); |
| } |
| |
| @Override |
| protected void prepareForExecution() { |
| //do nothing |
| } |
| |
| @Override |
| public void submitVerticesToUpdate(WorkItemManager manager) { |
| AtlasTypeRegistry typeRegistry = getTypeRegistry(); |
| AtlasGraph graph = getGraph(); |
| Set<Long> vertexIds = new HashSet<>(); |
| |
| for (AtlasClassificationType classificationType : typeRegistry.getAllClassificationTypes()) { |
| LOG.info("finding classification of type {}", classificationType.getTypeName()); |
| |
| Iterable<AtlasVertex> iterable = graph.query().has(Constants.ENTITY_TYPE_PROPERTY_KEY, classificationType.getTypeName()).vertices(); |
| int count = 0; |
| |
| for (Iterator<AtlasVertex> iter = iterable.iterator(); iter.hasNext(); ) { |
| AtlasVertex classificationVertex = iter.next(); |
| Iterable<AtlasEdge> edges = classificationVertex.getEdges(AtlasEdgeDirection.IN); |
| |
| for (AtlasEdge edge : edges) { |
| AtlasVertex entityVertex = edge.getOutVertex(); |
| Long vertexId = (Long) entityVertex.getId(); |
| |
| if (vertexIds.contains(vertexId)) { |
| continue; |
| } |
| |
| vertexIds.add(vertexId); |
| |
| manager.checkProduce(vertexId); |
| } |
| |
| count++; |
| } |
| |
| LOG.info("found {} classification of type {}", count, classificationType.getTypeName()); |
| } |
| |
| LOG.info("found {} entities with classifications", vertexIds.size()); |
| } |
| |
| @Override |
| protected void processVertexItem(Long vertexId, AtlasVertex vertex, String typeName, AtlasEntityType entityType) throws AtlasBaseException { |
| processItem(vertexId, vertex, typeName, entityType); |
| } |
| |
| private void processItem(Long vertexId, AtlasVertex vertex, String typeName, AtlasEntityType entityType) throws AtlasBaseException { |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("processItem(typeName={}, vertexId={})", typeName, vertexId); |
| } |
| |
| getEntityGraphMapper().updateClassificationTextAndNames(vertex); |
| |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("processItem(typeName={}, vertexId={}): Done!", typeName, vertexId); |
| } |
| } |
| } |
| } |