| /** |
| * 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.util; |
| |
| public class AtlasGremlin3QueryProvider extends AtlasGremlin2QueryProvider { |
| @Override |
| public String getQuery(final AtlasGremlinQuery gremlinQuery) { |
| // In case any overrides are necessary, a specific switch case can be added here to |
| // return Gremlin 3 specific query otherwise delegate to super.getQuery |
| switch (gremlinQuery) { |
| case TYPE_UNUSED_COUNT_METRIC: |
| return "g.V().has('__type', 'typeSystem').filter({ !it.getProperty('__type.category').name().matches('TRAIT') && it.inE().count() == 0}).count()"; |
| case ENTITY_COUNT_METRIC: |
| return "g.V().has('__superTypeNames', within(['Referenceable'])).count()"; |
| case EXPORT_TYPE_STARTS_WITH: |
| return "g.V().has('__typeName',typeName).filter({it.get().value(attrName).startsWith(attrValue)}).has('__guid').values('__guid').toList()"; |
| case EXPORT_TYPE_ENDS_WITH: |
| return "g.V().has('__typeName',typeName).filter({it.get().value(attrName).endsWith(attrValue)}).has('__guid').values('__guid').toList()"; |
| case EXPORT_TYPE_CONTAINS: |
| return "g.V().has('__typeName',typeName).filter({it.get().value(attrName).contains(attrValue)}).has('__guid').values('__guid').toList()"; |
| case EXPORT_TYPE_MATCHES: |
| return "g.V().has('__typeName',typeName).filter({it.get().value(attrName).matches(attrValue)}).has('__guid').values('__guid').toList()"; |
| case EXPORT_TYPE_DEFAULT: |
| return "g.V().has('__typeName',typeName).has(attrName, attrValue).has('__guid').values('__guid').toList()"; |
| case EXPORT_BY_GUID_FULL: |
| return "g.V().has('__guid', startGuid).bothE().bothV().has('__guid').transform{[__guid:it.__guid,isProcess:(it.__superTypeNames != null) ? it.__superTypeNames.contains('Process') : false ]}.dedup().toList()"; |
| case EXPORT_BY_GUID_CONNECTED_IN_EDGE: |
| return "g.V().has('__guid', startGuid).inE().outV().has('__guid').project('__guid', 'isProcess').by('__guid').by(map {it.get().values('__superTypeNames').toSet().contains('Process')}).dedup().toList()"; |
| case EXPORT_BY_GUID_CONNECTED_OUT_EDGE: |
| return "g.V().has('__guid', startGuid).outE().inV().has('__guid').project('__guid', 'isProcess').by('__guid').by(map {it.get().values('__superTypeNames').toSet().contains('Process')}).dedup().toList()"; |
| case FULL_LINEAGE: |
| return "g.V().has('__guid', '%s').repeat(__.in('%s').out('%s'))." + |
| "emit(has('__superTypeNames').and().properties('__superTypeNames').hasValue('DataSet'))." + |
| "path().toList()"; |
| case PARTIAL_LINEAGE: |
| return "g.V().has('__guid', '%s').repeat(__.in('%s').out('%s')).times(%s)." + |
| "emit(has('__superTypeNames').and().properties('__superTypeNames').hasValue('DataSet'))." + |
| "path().toList()"; |
| case TO_RANGE_LIST: |
| return ".range(startIdx, endIdx).toList()"; |
| case RELATIONSHIP_SEARCH: |
| return "g.V().has('__guid', guid).both(relation).has('__state', within(states))"; |
| case RELATIONSHIP_SEARCH_ASCENDING_SORT: |
| return ".order().by(sortAttributeName, incr)"; |
| case RELATIONSHIP_SEARCH_DESCENDING_SORT: |
| return ".order().by(sortAttributeName, decr)"; |
| case GREMLIN_SEARCH_RETURNS_VERTEX_ID: |
| return "g.V().range(0,1).toList()"; |
| case GREMLIN_SEARCH_RETURNS_EDGE_ID: |
| return "g.E().range(0,1).toList()"; |
| } |
| return super.getQuery(gremlinQuery); |
| } |
| } |