/
TranslationFacade.java
58 lines (53 loc) · 1.89 KB
/
TranslationFacade.java
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
/*
* Copyright (c) 2018-2019 "Neo4j, Inc." [https://neo4j.com]
*
* 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.
*/
package org.opencypher.gremlin.translation;
import static java.util.Collections.emptyMap;
import java.util.Map;
import org.opencypher.gremlin.translation.groovy.GroovyPredicate;
import org.opencypher.gremlin.translation.translator.Translator;
/**
* Cypher to Gremlin translation facade.
* <p>
* Basic usage example:
* <pre>{@code
* String cypher = "MATCH (p:Person) WHERE p.age > 25 RETURN p.name";
* TranslationFacade cfog = new TranslationFacade();
* String gremlin = cfog.toGremlinGroovy(cypher);
* }</pre>
*/
public class TranslationFacade {
/**
* Translates a Cypher query to Gremlin Groovy.
*
* @param cypher Cypher query
* @return Gremlin Groovy query
*/
public String toGremlinGroovy(String cypher) {
return toGremlinGroovy(cypher, emptyMap());
}
/**
* Translates a Cypher query to Gremlin Groovy.
*
* @param cypher Cypher query
* @param parameters query parameters
* @return Gremlin Groovy query
*/
public String toGremlinGroovy(String cypher, Map<String, Object> parameters) {
CypherAst ast = CypherAst.parse(cypher, parameters);
Translator<String, GroovyPredicate> translator = Translator.builder().gremlinGroovy().build();
return ast.buildTranslation(translator);
}
}