2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 package org.onap.aai.query.builder;
22 import java.io.UnsupportedEncodingException;
24 import java.util.ArrayList;
25 import java.util.List;
27 import javax.ws.rs.core.MultivaluedMap;
29 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
30 import org.apache.tinkerpop.gremlin.structure.Vertex;
31 import org.onap.aai.exceptions.AAIException;
32 import org.onap.aai.introspection.Introspector;
33 import org.onap.aai.introspection.Loader;
34 import org.onap.aai.parsers.query.QueryParser;
35 import org.onap.aai.parsers.query.TraversalStrategy;
36 import org.onap.aai.serialization.db.EdgeRules;
39 * The Class GremlinTraversal.
41 public class GremlinTraversal<E> extends GremlinQueryBuilder<E> {
44 * Instantiates a new gremlin traversal.
46 * @param loader the loader
48 public GremlinTraversal(Loader loader, GraphTraversalSource source, EdgeRules ers) {
49 super(loader, source, ers);
50 this.factory = new TraversalStrategy(this.loader, this);
54 * Instantiates a new gremlin traversal.
56 * @param loader the loader
58 public GremlinTraversal(Loader loader, GraphTraversalSource source) {
59 super(loader, source);
60 this.factory = new TraversalStrategy(this.loader, this);
64 * Instantiates a new gremlin traversal.
66 * @param loader the loader
67 * @param start the start
69 public GremlinTraversal(Loader loader, GraphTraversalSource source, Vertex start) {
70 super(loader, source, start);
71 this.factory = new TraversalStrategy(this.loader, this);
75 * Instantiates a new gremlin traversal.
77 * @param loader the loader
78 * @param start the start
80 public GremlinTraversal(Loader loader, GraphTraversalSource source, Vertex start, EdgeRules ers) {
81 super(loader, source, start, ers);
82 this.factory = new TraversalStrategy(this.loader, this);
85 protected GremlinTraversal(List<String> traversal, Loader loader, GraphTraversalSource source, GremlinQueryBuilder<E> gtb) {
86 super(loader, source);
87 this.list = traversal;
88 this.stepIndex = gtb.getStepIndex();
89 this.parentStepIndex = gtb.getParentStepIndex();
90 this.containerStepIndex = gtb.getContainerStepIndex();
91 this.factory = new TraversalStrategy(this.loader, this);
92 this.start = gtb.getStart();
99 public QueryParser createQueryFromURI(URI uri) throws UnsupportedEncodingException, AAIException {
100 return factory.buildURIParser(uri);
107 public QueryParser createQueryFromRelationship(Introspector relationship) throws UnsupportedEncodingException, AAIException {
108 return factory.buildRelationshipParser(relationship);
116 public QueryParser createQueryFromURI(URI uri, MultivaluedMap<String, String> queryParams)
117 throws UnsupportedEncodingException, AAIException {
118 return factory.buildURIParser(uri, queryParams);
125 public QueryParser createQueryFromObjectName(String objName) {
126 return factory.buildObjectNameParser(objName);
133 public QueryBuilder<E> newInstance(Vertex start) {
134 return new GremlinTraversal<>(loader, source, start);
141 public QueryBuilder<E> newInstance() {
142 return new GremlinTraversal<>(loader, source);
146 protected QueryBuilder<E> cloneQueryAtStep(int index) {
154 List<String> newList = new ArrayList<>();
155 for (int i = 0; i < idx; i++) {
156 newList.add(this.list.get(i));
159 return new GremlinTraversal<>(newList, loader, source, this);