| /** |
| * 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.atlas.repository.store.graph.v1; |
| |
| |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import org.apache.atlas.AtlasErrorCode; |
| import org.apache.atlas.AtlasException; |
| import org.apache.atlas.exception.AtlasBaseException; |
| import org.apache.atlas.listener.EntityChangeListener; |
| import org.apache.atlas.model.instance.AtlasClassification; |
| import org.apache.atlas.model.instance.AtlasEntityHeader; |
| import org.apache.atlas.model.instance.EntityMutationResponse; |
| import org.apache.atlas.model.instance.EntityMutations.EntityOperation; |
| import org.apache.atlas.repository.Constants; |
| import org.apache.atlas.repository.converters.AtlasInstanceConverter; |
| import org.apache.atlas.repository.graph.*; |
| import org.apache.atlas.repository.graphdb.AtlasVertex; |
| import org.apache.atlas.typesystem.ITypedReferenceableInstance; |
| import org.apache.atlas.typesystem.ITypedStruct; |
| import org.apache.atlas.util.AtlasRepositoryConfiguration; |
| import org.apache.commons.collections.CollectionUtils; |
| import org.apache.commons.lang3.StringUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| |
| @Singleton |
| public class AtlasEntityChangeNotifier { |
| private static final Logger LOG = LoggerFactory.getLogger(AtlasEntityChangeNotifier.class); |
| |
| private final Set<EntityChangeListener> entityChangeListeners; |
| private final AtlasInstanceConverter instanceConverter; |
| |
| @Inject |
| private FullTextMapperV2 fullTextMapperV2; |
| |
| @Inject |
| public AtlasEntityChangeNotifier(Set<EntityChangeListener> entityChangeListeners, |
| AtlasInstanceConverter instanceConverter) { |
| this.entityChangeListeners = entityChangeListeners; |
| this.instanceConverter = instanceConverter; |
| } |
| |
| public void onEntitiesMutated(EntityMutationResponse entityMutationResponse) throws AtlasBaseException { |
| if (CollectionUtils.isEmpty(entityChangeListeners) || instanceConverter == null) { |
| return; |
| } |
| |
| List<AtlasEntityHeader> createdEntities = entityMutationResponse.getCreatedEntities(); |
| List<AtlasEntityHeader> updatedEntities = entityMutationResponse.getUpdatedEntities(); |
| List<AtlasEntityHeader> partiallyUpdatedEntities = entityMutationResponse.getPartialUpdatedEntities(); |
| List<AtlasEntityHeader> deletedEntities = entityMutationResponse.getDeletedEntities(); |
| |
| // complete full text mapping before calling toITypedReferenceable(), from notifyListners(), to |
| // include all vertex updates in the current graph-transaction |
| doFullTextMapping(createdEntities); |
| doFullTextMapping(updatedEntities); |
| doFullTextMapping(partiallyUpdatedEntities); |
| |
| notifyListeners(createdEntities, EntityOperation.CREATE); |
| notifyListeners(updatedEntities, EntityOperation.UPDATE); |
| notifyListeners(partiallyUpdatedEntities, EntityOperation.PARTIAL_UPDATE); |
| notifyListeners(deletedEntities, EntityOperation.DELETE); |
| } |
| |
| public void onClassificationAddedToEntity(String entityId, List<AtlasClassification> classifications) throws AtlasBaseException { |
| // Only new classifications need to be used for a partial full text string which can be |
| // appended to the existing fullText |
| updateFullTextMapping(entityId, classifications); |
| |
| ITypedReferenceableInstance entity = toITypedReferenceable(entityId); |
| List<ITypedStruct> traits = toITypedStructs(classifications); |
| |
| if (entity == null || CollectionUtils.isEmpty(traits)) { |
| return; |
| } |
| |
| for (EntityChangeListener listener : entityChangeListeners) { |
| try { |
| listener.onTraitsAdded(entity, traits); |
| } catch (AtlasException e) { |
| throw new AtlasBaseException(AtlasErrorCode.NOTIFICATION_FAILED, e); |
| } |
| } |
| } |
| |
| public void onClassificationDeletedFromEntity(String entityId, List<String> traitNames) throws AtlasBaseException { |
| // Since the entity has already been modified in the graph, we need to recursively remap the entity |
| doFullTextMapping(entityId); |
| |
| ITypedReferenceableInstance entity = toITypedReferenceable(entityId); |
| |
| if (entity == null || CollectionUtils.isEmpty(traitNames)) { |
| return; |
| } |
| |
| for (EntityChangeListener listener : entityChangeListeners) { |
| try { |
| listener.onTraitsDeleted(entity, traitNames); |
| } catch (AtlasException e) { |
| throw new AtlasBaseException(AtlasErrorCode.NOTIFICATION_FAILED, e); |
| } |
| } |
| } |
| |
| private void notifyListeners(List<AtlasEntityHeader> entityHeaders, EntityOperation operation) throws AtlasBaseException { |
| if (CollectionUtils.isEmpty(entityHeaders)) { |
| return; |
| } |
| |
| List<ITypedReferenceableInstance> typedRefInsts = toITypedReferenceable(entityHeaders); |
| |
| for (EntityChangeListener listener : entityChangeListeners) { |
| try { |
| switch (operation) { |
| case CREATE: |
| listener.onEntitiesAdded(typedRefInsts); |
| break; |
| case UPDATE: |
| case PARTIAL_UPDATE: |
| listener.onEntitiesUpdated(typedRefInsts); |
| break; |
| case DELETE: |
| listener.onEntitiesDeleted(typedRefInsts); |
| break; |
| } |
| } catch (AtlasException e) { |
| throw new AtlasBaseException(AtlasErrorCode.NOTIFICATION_FAILED, e, operation.toString()); |
| } |
| } |
| } |
| |
| private List<ITypedReferenceableInstance> toITypedReferenceable(List<AtlasEntityHeader> entityHeaders) throws AtlasBaseException { |
| List<ITypedReferenceableInstance> ret = new ArrayList<>(entityHeaders.size()); |
| |
| for (AtlasEntityHeader entityHeader : entityHeaders) { |
| ret.add(instanceConverter.getITypedReferenceable(entityHeader.getGuid())); |
| } |
| |
| return ret; |
| } |
| |
| private ITypedReferenceableInstance toITypedReferenceable(String entityId) throws AtlasBaseException { |
| ITypedReferenceableInstance ret = null; |
| |
| if (StringUtils.isNotEmpty(entityId)) { |
| ret = instanceConverter.getITypedReferenceable(entityId); |
| } |
| |
| return ret; |
| } |
| |
| private List<ITypedStruct> toITypedStructs(List<AtlasClassification> classifications) throws AtlasBaseException { |
| List<ITypedStruct> ret = null; |
| |
| if (classifications != null) { |
| ret = new ArrayList<>(classifications.size()); |
| |
| for (AtlasClassification classification : classifications) { |
| if (classification != null) { |
| ret.add(instanceConverter.getTrait(classification)); |
| } |
| } |
| } |
| |
| return ret; |
| } |
| |
| private void doFullTextMapping(List<AtlasEntityHeader> atlasEntityHeaders) { |
| if (CollectionUtils.isEmpty(atlasEntityHeaders)) { |
| return; |
| } |
| |
| try { |
| if(!AtlasRepositoryConfiguration.isFullTextSearchEnabled()) { |
| return; |
| } |
| } catch (AtlasException e) { |
| LOG.warn("Unable to determine if FullText is disabled. Proceeding with FullText mapping"); |
| } |
| |
| for (AtlasEntityHeader atlasEntityHeader : atlasEntityHeaders) { |
| String guid = atlasEntityHeader.getGuid(); |
| AtlasVertex atlasVertex = AtlasGraphUtilsV1.findByGuid(guid); |
| |
| if(atlasVertex == null) { |
| continue; |
| } |
| |
| try { |
| String fullText = fullTextMapperV2.getIndexTextForEntity(guid); |
| |
| GraphHelper.setProperty(atlasVertex, Constants.ENTITY_TEXT_PROPERTY_KEY, fullText); |
| } catch (AtlasBaseException e) { |
| LOG.error("FullText mapping failed for Vertex[ guid = {} ]", guid, e); |
| } |
| } |
| } |
| |
| private void updateFullTextMapping(String entityId, List<AtlasClassification> classifications) { |
| try { |
| if(!AtlasRepositoryConfiguration.isFullTextSearchEnabled()) { |
| return; |
| } |
| } catch (AtlasException e) { |
| LOG.warn("Unable to determine if FullText is disabled. Proceeding with FullText mapping"); |
| } |
| |
| if (StringUtils.isEmpty(entityId) || CollectionUtils.isEmpty(classifications)) { |
| return; |
| } |
| |
| AtlasVertex atlasVertex = AtlasGraphUtilsV1.findByGuid(entityId); |
| if(atlasVertex == null) { |
| return; |
| } |
| |
| if (atlasVertex == null) { |
| LOG.warn("updateFullTextMapping(): no entity exists with guid {}", entityId); |
| return; |
| } |
| |
| try { |
| String classificationFullText = fullTextMapperV2.getIndexTextForClassifications(entityId, classifications); |
| String existingFullText = (String) GraphHelper.getProperty(atlasVertex, Constants.ENTITY_TEXT_PROPERTY_KEY); |
| |
| String newFullText = existingFullText + " " + classificationFullText; |
| GraphHelper.setProperty(atlasVertex, Constants.ENTITY_TEXT_PROPERTY_KEY, newFullText); |
| } catch (AtlasBaseException e) { |
| LOG.error("FullText mapping failed for Vertex[ guid = {} ]", entityId, e); |
| } |
| } |
| |
| private void doFullTextMapping(String guid) { |
| AtlasEntityHeader entityHeader = new AtlasEntityHeader(); |
| entityHeader.setGuid(guid); |
| |
| doFullTextMapping(Collections.singletonList(entityHeader)); |
| } |
| } |