1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.query.builder;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.util.List;
import javax.ws.rs.core.MultivaluedMap;
import org.apache.tinkerpop.gremlin.process.traversal.Step;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.introspection.Introspector;
import org.onap.aai.introspection.Loader;
import org.onap.aai.parsers.query.QueryParser;
import org.onap.aai.parsers.query.TraversalStrategy;
import org.onap.aai.serialization.db.EdgeRules;
/**
* The Class TraversalQuery.
*/
public class TraversalQuery<E> extends GraphTraversalBuilder<E> {
/**
* Instantiates a new traversal query.
*
* @param loader the loader
*/
public TraversalQuery(Loader loader, GraphTraversalSource source) {
super(loader, source);
this.factory = new TraversalStrategy(this.loader, this);
}
/**
* Instantiates a new traversal query.
*
* @param loader the loader
* @param source graph traversal source
* @param edgeRules the edgeRules to use
*/
public TraversalQuery(Loader loader, GraphTraversalSource source, EdgeRules edgeRules) {
super(loader, source, edgeRules);
this.factory = new TraversalStrategy(this.loader, this);
}
/**
* Instantiates a new traversal query.
*
* @param loader the loader
* @param start the start
*/
public TraversalQuery(Loader loader, GraphTraversalSource source, Vertex start) {
super(loader, source, start);
this.factory = new TraversalStrategy(this.loader, this);
}
/**
* Instantiates a new traversal query.
*
* @param loader the loader
* @param start the start
*/
public TraversalQuery(Loader loader, GraphTraversalSource source, Vertex start, EdgeRules edgeRules) {
super(loader, source, start, edgeRules);
this.factory = new TraversalStrategy(this.loader, this);
}
protected TraversalQuery(GraphTraversal<Vertex, E> traversal, Loader loader, GraphTraversalSource source, GraphTraversalBuilder<E> gtb) {
super(loader, source);
this.traversal = traversal;
this.stepIndex = gtb.getStepIndex();
this.parentStepIndex = gtb.getParentStepIndex();
this.containerStepIndex = gtb.getContainerStepIndex();
this.factory = new TraversalStrategy(this.loader, this);
this.start = gtb.getStart();
}
/**
* @{inheritDoc}
*/
@Override
public QueryParser createQueryFromURI(URI uri) throws UnsupportedEncodingException, AAIException {
return factory.buildURIParser(uri);
}
/**
* @{inheritDoc}
*/
@Override
public QueryParser createQueryFromRelationship(Introspector relationship) throws UnsupportedEncodingException, AAIException {
return factory.buildRelationshipParser(relationship);
}
/**
* @{inheritDoc}
*/
@Override
public QueryParser createQueryFromURI(URI uri, MultivaluedMap<String, String> queryParams)
throws UnsupportedEncodingException, AAIException {
return factory.buildURIParser(uri, queryParams);
}
/**
* @{inheritDoc}
*/
@Override
public QueryParser createQueryFromObjectName(String objName) {
return factory.buildObjectNameParser(objName);
}
/**
* @{inheritDoc}
*/
@Override
public QueryBuilder<E> newInstance(Vertex start) {
return new TraversalQuery<>(loader, source, start);
}
/**
* @{inheritDoc}
*/
@Override
public QueryBuilder<E> newInstance() {
return new TraversalQuery<>(loader, source);
}
@Override
protected QueryBuilder<E> cloneQueryAtStep(int index) {
int idx = index;
if (idx == 0) {
idx = stepIndex;
}
GraphTraversal<Vertex, E> clone = this.traversal.asAdmin().clone();
GraphTraversal.Admin<Vertex, E> cloneAdmin = clone.asAdmin();
List<Step> steps = cloneAdmin.getSteps();
for (int i = steps.size()-1; i >= idx; i--) {
cloneAdmin.removeStep(i);
}
return new TraversalQuery<>(cloneAdmin, loader, source, this);
}
@Override
protected QueryBuilder<E> removeQueryStepsBetween(int start, int end) {
GraphTraversal<Vertex, E> clone = this.traversal.asAdmin().clone();
GraphTraversal.Admin<Vertex, E> cloneAdmin = clone.asAdmin();
for (int i = end-2; i >= start; i--) {
cloneAdmin.removeStep(i);
}
return new TraversalQuery<>(cloneAdmin, loader, source, this);
}
}
|
