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
|
// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
import "errors"
// Script holds all the paramaters necessary to compile or find in cache
// and then execute a script.
//
// See https://www.elastic.co/guide/en/elasticsearch/reference/6.0/modules-scripting.html
// for details of scripting.
type Script struct {
script string
typ string
lang string
params map[string]interface{}
}
// NewScript creates and initializes a new Script.
func NewScript(script string) *Script {
return &Script{
script: script,
typ: "inline",
params: make(map[string]interface{}),
}
}
// NewScriptInline creates and initializes a new inline script, i.e. code.
func NewScriptInline(script string) *Script {
return NewScript(script).Type("inline")
}
// NewScriptStored creates and initializes a new stored script.
func NewScriptStored(script string) *Script {
return NewScript(script).Type("id")
}
// Script is either the cache key of the script to be compiled/executed
// or the actual script source code for inline scripts. For indexed
// scripts this is the id used in the request. For file scripts this is
// the file name.
func (s *Script) Script(script string) *Script {
s.script = script
return s
}
// Type sets the type of script: "inline" or "id".
func (s *Script) Type(typ string) *Script {
s.typ = typ
return s
}
// Lang sets the language of the script. Permitted values are "groovy",
// "expression", "mustache", "mvel" (default), "javascript", "python".
// To use certain languages, you need to configure your server and/or
// add plugins. See https://www.elastic.co/guide/en/elasticsearch/reference/6.0/modules-scripting.html
// for details.
func (s *Script) Lang(lang string) *Script {
s.lang = lang
return s
}
// Param adds a key/value pair to the parameters that this script will be executed with.
func (s *Script) Param(name string, value interface{}) *Script {
if s.params == nil {
s.params = make(map[string]interface{})
}
s.params[name] = value
return s
}
// Params sets the map of parameters this script will be executed with.
func (s *Script) Params(params map[string]interface{}) *Script {
s.params = params
return s
}
// Source returns the JSON serializable data for this Script.
func (s *Script) Source() (interface{}, error) {
if s.typ == "" && s.lang == "" && len(s.params) == 0 {
return s.script, nil
}
source := make(map[string]interface{})
// Beginning with 6.0, the type can only be "source" or "id"
if s.typ == "" || s.typ == "inline" {
source["source"] = s.script
} else {
source["id"] = s.script
}
if s.lang != "" {
source["lang"] = s.lang
}
if len(s.params) > 0 {
source["params"] = s.params
}
return source, nil
}
// -- Script Field --
// ScriptField is a single script field.
type ScriptField struct {
FieldName string // name of the field
script *Script
}
// NewScriptField creates and initializes a new ScriptField.
func NewScriptField(fieldName string, script *Script) *ScriptField {
return &ScriptField{FieldName: fieldName, script: script}
}
// Source returns the serializable JSON for the ScriptField.
func (f *ScriptField) Source() (interface{}, error) {
if f.script == nil {
return nil, errors.New("ScriptField expects script")
}
source := make(map[string]interface{})
src, err := f.script.Source()
if err != nil {
return nil, err
}
source["script"] = src
return source, nil
}
|
