org.apache.atlas.util.AtlasGremlin2QueryProvider Maven / Gradle / Ivy
/**
* 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.util;
public class AtlasGremlin2QueryProvider extends AtlasGremlinQueryProvider {
@Override
public String getQuery(final AtlasGremlinQuery gremlinQuery) {
switch (gremlinQuery) {
case ENTITY_ACTIVE_METRIC:
return "g.V().has('__typeName', T.in, [%s]).has('__state', 'ACTIVE').groupCount{it.getProperty('__typeName')}.cap.toList()";
case ENTITY_DELETED_METRIC:
return "g.V().has('__typeName', T.in, [%s]).has('__state', 'DELETED').groupCount{it.getProperty('__typeName')}.cap.toList()";
case EXPORT_BY_GUID_FULL:
return "g.V('__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('__guid', startGuid).inE().outV().has('__guid').transform{[__guid:it.__guid,isProcess:(it.__superTypeNames != null) ? it.__superTypeNames.contains('Process') : false ]}.dedup().toList()";
case EXPORT_BY_GUID_CONNECTED_OUT_EDGE:
return "g.V('__guid', startGuid).outE().inV().has('__guid').transform{[__guid:it.__guid,isProcess:(it.__superTypeNames != null) ? it.__superTypeNames.contains('Process') : false ]}.dedup().toList()";
case EXPORT_TYPE_ALL_FOR_TYPE:
return "g.V().has('__typeName',T.in,typeName).has('__guid').__guid.toList()";
case EXPORT_TYPE_STARTS_WITH:
return "g.V().has('__typeName',typeName).filter({it.getProperty(attrName).startsWith(attrValue)}).has('__guid').__guid.toList()";
case EXPORT_TYPE_ENDS_WITH:
return "g.V().has('__typeName',typeName).filter({it.getProperty(attrName).endsWith(attrValue)}).has('__guid').__guid.toList()";
case EXPORT_TYPE_CONTAINS:
return "g.V().has('__typeName',typeName).filter({it.getProperty(attrName).contains(attrValue)}).has('__guid').__guid.toList()";
case EXPORT_TYPE_MATCHES:
return "g.V().has('__typeName',typeName).filter({it.getProperty(attrName).matches(attrValue)}).has('__guid').__guid.toList()";
case EXPORT_TYPE_DEFAULT:
return "g.V().has('__typeName',typeName).has(attrName, attrValue).has('__guid').__guid.toList()";
case FULL_LINEAGE_DATASET:
return "g.V('__guid', '%s').as('src').in('%s').out('%s')." +
"loop('src', {((it.path.contains(it.object)) ? false : true)}, " +
"{((it.object.'__superTypeNames') ? " +
"(it.object.'__superTypeNames'.contains('DataSet')) : false)})." +
"path().toList()";
case PARTIAL_LINEAGE_DATASET:
return "g.V('__guid', '%s').as('src').in('%s').out('%s')." +
"loop('src', {it.loops <= %s}, {((it.object.'__superTypeNames') ? " +
"(it.object.'__superTypeNames'.contains('DataSet')) : false)})." +
"path().toList()";
case BASIC_SEARCH_TYPE_FILTER:
return ".has('__typeName', within(typeNames))";
case BASIC_SEARCH_CLASSIFICATION_FILTER:
return ".or(has('__traitNames', within(traitNames)), has('__propagatedTraitNames', within(traitNames)))";
case BASIC_SEARCH_STATE_FILTER:
return ".has('__state', state)";
case TO_RANGE_LIST:
return " [startIdx.. it.b.getProperty(sortAttributeName)}";
case RELATIONSHIP_SEARCH_DESCENDING_SORT:
return ".order{it.b.getProperty(sortAttributeName) <=> it.a.getProperty(sortAttributeName)}";
case GREMLIN_SEARCH_RETURNS_VERTEX_ID:
return "g.V.range(0,0).collect()";
case GREMLIN_SEARCH_RETURNS_EDGE_ID:
return "g.E.range(0,0).collect()";
}
// Should never reach this point
return null;
}
}