2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 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=========================================================
21 package org.openecomp.aai.query.builder;
23 import java.io.UnsupportedEncodingException;
25 import java.util.ArrayList;
26 import java.util.List;
28 import javax.ws.rs.core.MultivaluedMap;
30 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
31 import org.apache.tinkerpop.gremlin.structure.Vertex;
33 import org.openecomp.aai.exceptions.AAIException;
34 import org.openecomp.aai.introspection.Introspector;
35 import org.openecomp.aai.introspection.Loader;
36 import org.openecomp.aai.parsers.query.QueryParser;
37 import org.openecomp.aai.parsers.query.TraversalStrategy;
40 * The Class GremlinTraversal.
42 public class GremlinTraversal extends GremlinQueryBuilder {
45 * Instantiates a new gremlin traversal.
47 * @param loader the loader
49 public GremlinTraversal(Loader loader, GraphTraversalSource source) {
50 super(loader, source);
51 this.factory = new TraversalStrategy(this.loader, this);
55 * Instantiates a new gremlin traversal.
57 * @param loader the loader
58 * @param start the start
60 public GremlinTraversal(Loader loader, GraphTraversalSource source, Vertex start) {
61 super(loader, source, start);
62 this.factory = new TraversalStrategy(this.loader, this);
65 protected GremlinTraversal(List<String> traversal, Loader loader, GraphTraversalSource source, GremlinQueryBuilder gtb) {
66 super(loader, source);
67 this.list = traversal;
68 this.stepIndex = gtb.getStepIndex();
69 this.parentStepIndex = gtb.getParentStepIndex();
70 this.containerStepIndex = gtb.getContainerStepIndex();
71 this.factory = new TraversalStrategy(this.loader, this);
72 this.start = gtb.getStart();
79 public QueryParser createQueryFromURI(URI uri) throws UnsupportedEncodingException, AAIException {
80 return factory.buildURIParser(uri);
87 public QueryParser createQueryFromRelationship(Introspector relationship) throws UnsupportedEncodingException, AAIException {
88 return factory.buildRelationshipParser(relationship);
96 public QueryParser createQueryFromURI(URI uri, MultivaluedMap<String, String> queryParams)
97 throws UnsupportedEncodingException, AAIException {
98 return factory.buildURIParser(uri, queryParams);
105 public QueryParser createQueryFromObjectName(String objName) {
106 return factory.buildObjectNameParser(objName);
113 public QueryBuilder newInstance(Vertex start) {
114 return new GremlinTraversal(loader, source, start);
121 public QueryBuilder newInstance() {
122 return new GremlinTraversal(loader, source);
126 protected QueryBuilder cloneQueryAtStep(int index) {
130 List<String> newList = new ArrayList<>();
131 for (int i = 0; i < index; i++) {
132 newList.add(this.list.get(i));
135 return new GremlinTraversal(newList, loader, source, this);