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
|
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.query;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.ParseFieldMatcher;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.script.ScriptService;
import org.elasticsearch.script.Template;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* In the simplest case, parse template string and variables from the request,
* compile the template and execute the template against the given variables.
* */
public class TemplateQueryParser implements QueryParser<TemplateQueryBuilder> {
private final static Map<String, ScriptService.ScriptType> parametersToTypes = new HashMap<>();
static {
parametersToTypes.put("query", ScriptService.ScriptType.INLINE);
parametersToTypes.put("file", ScriptService.ScriptType.FILE);
parametersToTypes.put("id", ScriptService.ScriptType.INDEXED);
}
@Override
public String[] names() {
return new String[] {TemplateQueryBuilder.NAME};
}
/**
* Parses the template query replacing template parameters with provided
* values. Handles both submitting the template as part of the request as
* well as referencing only the template name.
*
* @param parseContext parse context containing the templated query.
*/
@Override
@Nullable
public TemplateQueryBuilder fromXContent(QueryParseContext parseContext) throws IOException {
XContentParser parser = parseContext.parser();
Template template = parse(parser, parseContext.parseFieldMatcher());
return new TemplateQueryBuilder(template);
}
public static Template parse(XContentParser parser, ParseFieldMatcher parseFieldMatcher, String... parameters) throws IOException {
Map<String, ScriptService.ScriptType> parameterMap = new HashMap<>(parametersToTypes);
for (String parameter : parameters) {
parameterMap.put(parameter, ScriptService.ScriptType.INLINE);
}
return parse(parser, parameterMap, parseFieldMatcher);
}
public static Template parse(String defaultLang, XContentParser parser, ParseFieldMatcher parseFieldMatcher, String... parameters) throws IOException {
Map<String, ScriptService.ScriptType> parameterMap = new HashMap<>(parametersToTypes);
for (String parameter : parameters) {
parameterMap.put(parameter, ScriptService.ScriptType.INLINE);
}
return Template.parse(parser, parameterMap, defaultLang, parseFieldMatcher);
}
public static Template parse(XContentParser parser, ParseFieldMatcher parseFieldMatcher) throws IOException {
return parse(parser, parametersToTypes, parseFieldMatcher);
}
public static Template parse(XContentParser parser, Map<String, ScriptService.ScriptType> parameterMap, ParseFieldMatcher parseFieldMatcher) throws IOException {
return Template.parse(parser, parameterMap, parseFieldMatcher);
}
@Override
public TemplateQueryBuilder getBuilderPrototype() {
return TemplateQueryBuilder.PROTOTYPE;
}
}
|