| /** |
| * 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; |
| |
| import org.apache.atlas.exception.AtlasBaseException; |
| import org.apache.atlas.model.instance.AtlasObjectId; |
| import org.apache.atlas.repository.graphdb.AtlasVertex; |
| import org.apache.atlas.repository.store.graph.v1.EntityStream; |
| import org.apache.atlas.type.AtlasEntityType; |
| import org.apache.atlas.type.AtlasTypeRegistry; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| public final class EntityGraphDiscoveryContext { |
| private static final Logger LOG = LoggerFactory.getLogger(EntityGraphDiscoveryContext.class); |
| |
| private final AtlasTypeRegistry typeRegistry; |
| private final EntityStream entityStream; |
| private final List<String> referencedGuids = new ArrayList<>(); |
| private final Set<AtlasObjectId> referencedByUniqAttribs = new HashSet<>(); |
| private final Map<String, AtlasVertex> resolvedGuids = new HashMap<>(); |
| private final Map<AtlasObjectId, AtlasVertex> resolvedIdsByUniqAttribs = new HashMap<>(); |
| private final Set<String> localGuids = new HashSet<>(); |
| |
| public EntityGraphDiscoveryContext(AtlasTypeRegistry typeRegistry, EntityStream entityStream) { |
| this.typeRegistry = typeRegistry; |
| this.entityStream = entityStream; |
| } |
| |
| public EntityStream getEntityStream() { |
| return entityStream; |
| } |
| |
| public List<String> getReferencedGuids() { return referencedGuids; } |
| |
| public Set<AtlasObjectId> getReferencedByUniqAttribs() { return referencedByUniqAttribs; } |
| |
| public Map<String, AtlasVertex> getResolvedGuids() { |
| return resolvedGuids; |
| } |
| |
| public Map<AtlasObjectId, AtlasVertex> getResolvedIdsByUniqAttribs() { |
| return resolvedIdsByUniqAttribs; |
| } |
| |
| public Set<String> getLocalGuids() { return localGuids; } |
| |
| |
| public void addReferencedGuid(String guid) { |
| if (! referencedGuids.contains(guid)) { |
| referencedGuids.add(guid); |
| } |
| } |
| |
| public void addReferencedByUniqAttribs(AtlasObjectId objId) { referencedByUniqAttribs.add(objId); } |
| |
| |
| public void addResolvedGuid(String guid, AtlasVertex vertex) { resolvedGuids.put(guid, vertex); } |
| |
| public void addResolvedIdByUniqAttribs(AtlasObjectId objId, AtlasVertex vertex) { resolvedIdsByUniqAttribs.put(objId, vertex); } |
| |
| public void addLocalGuidReference(String guid) { localGuids.add(guid); } |
| |
| public boolean isResolvedGuid(String guid) { return resolvedGuids.containsKey(guid); } |
| |
| public boolean isResolvedIdByUniqAttrib(AtlasObjectId objId) { return resolvedIdsByUniqAttribs.containsKey(objId); } |
| |
| |
| public AtlasVertex getResolvedEntityVertex(String guid) throws AtlasBaseException { |
| AtlasVertex ret = resolvedGuids.get(guid); |
| |
| return ret; |
| } |
| |
| public AtlasVertex getResolvedEntityVertex(AtlasObjectId objId) { |
| AtlasVertex vertex = resolvedIdsByUniqAttribs.get(objId); |
| |
| // check also for sub-types; ref={typeName=Asset; guid=abcd} should match {typeName=hive_table; guid=abcd} |
| if (vertex == null) { |
| final AtlasEntityType entityType = typeRegistry.getEntityTypeByName(objId.getTypeName()); |
| final Set<String> allSubTypes = entityType.getAllSubTypes(); |
| |
| for (String subType : allSubTypes) { |
| AtlasObjectId subTypeObjId = new AtlasObjectId(objId.getGuid(), subType, objId.getUniqueAttributes()); |
| |
| vertex = resolvedIdsByUniqAttribs.get(subTypeObjId); |
| |
| if (vertex != null) { |
| resolvedIdsByUniqAttribs.put(objId, vertex); |
| break; |
| } |
| } |
| } |
| |
| return vertex; |
| } |
| |
| public StringBuilder toString(StringBuilder sb) { |
| if (sb == null) { |
| sb = new StringBuilder(); |
| } |
| |
| sb.append("EntityGraphDiscoveryCtx{"); |
| sb.append("referencedGuids=").append(referencedGuids); |
| sb.append(", referencedByUniqAttribs=").append(referencedByUniqAttribs); |
| sb.append(", resolvedGuids='").append(resolvedGuids); |
| sb.append(", resolvedIdsByUniqAttribs='").append(resolvedIdsByUniqAttribs); |
| sb.append(", localGuids='").append(localGuids); |
| sb.append('}'); |
| |
| return sb; |
| } |
| |
| @Override |
| public String toString() { |
| return toString(new StringBuilder()).toString(); |
| } |
| |
| public void cleanUp() { |
| referencedGuids.clear(); |
| referencedByUniqAttribs.clear(); |
| resolvedGuids.clear(); |
| resolvedIdsByUniqAttribs.clear(); |
| localGuids.clear(); |
| } |
| } |