File: suggester_completion_fuzzy.go

package info (click to toggle)
golang-gopkg-olivere-elastic.v5 5.0.83-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 2,848 kB
  • sloc: makefile: 18; sh: 2
file content (181 lines) | stat: -rw-r--r-- 4,855 bytes parent folder | download | duplicates (2)
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
177
178
179
180
181
// 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

// FuzzyCompletionSuggester is a CompletionSuggester that allows fuzzy
// completion.
// See https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-suggesters-completion.html
// for details, and
// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-suggesters-completion.html#fuzzy
// for details about the fuzzy completion suggester.
//
// @Deprecated Use CompletionSuggester with FuzzyOptions instead.
type FuzzyCompletionSuggester struct {
	Suggester
	name           string
	text           string
	field          string
	analyzer       string
	size           *int
	shardSize      *int
	contextQueries []SuggesterContextQuery

	fuzziness           interface{}
	fuzzyTranspositions *bool
	fuzzyMinLength      *int
	fuzzyPrefixLength   *int
	unicodeAware        *bool
}

// Fuzziness defines the fuzziness which is used in FuzzyCompletionSuggester.
type Fuzziness struct {
}

// Creates a new completion suggester.
func NewFuzzyCompletionSuggester(name string) *FuzzyCompletionSuggester {
	return &FuzzyCompletionSuggester{
		name:           name,
		contextQueries: make([]SuggesterContextQuery, 0),
	}
}

func (q *FuzzyCompletionSuggester) Name() string {
	return q.name
}

func (q *FuzzyCompletionSuggester) Text(text string) *FuzzyCompletionSuggester {
	q.text = text
	return q
}

func (q *FuzzyCompletionSuggester) Field(field string) *FuzzyCompletionSuggester {
	q.field = field
	return q
}

func (q *FuzzyCompletionSuggester) Analyzer(analyzer string) *FuzzyCompletionSuggester {
	q.analyzer = analyzer
	return q
}

func (q *FuzzyCompletionSuggester) Size(size int) *FuzzyCompletionSuggester {
	q.size = &size
	return q
}

func (q *FuzzyCompletionSuggester) ShardSize(shardSize int) *FuzzyCompletionSuggester {
	q.shardSize = &shardSize
	return q
}

func (q *FuzzyCompletionSuggester) ContextQuery(query SuggesterContextQuery) *FuzzyCompletionSuggester {
	q.contextQueries = append(q.contextQueries, query)
	return q
}

func (q *FuzzyCompletionSuggester) ContextQueries(queries ...SuggesterContextQuery) *FuzzyCompletionSuggester {
	q.contextQueries = append(q.contextQueries, queries...)
	return q
}

// Fuzziness defines the strategy used to describe what "fuzzy" actually
// means for the suggester, e.g. 1, 2, "0", "1..2", ">4", or "AUTO".
// See https://www.elastic.co/guide/en/elasticsearch/reference/5.2/common-options.html#fuzziness
// for a detailed description.
func (q *FuzzyCompletionSuggester) Fuzziness(fuzziness interface{}) *FuzzyCompletionSuggester {
	q.fuzziness = fuzziness
	return q
}

func (q *FuzzyCompletionSuggester) FuzzyTranspositions(fuzzyTranspositions bool) *FuzzyCompletionSuggester {
	q.fuzzyTranspositions = &fuzzyTranspositions
	return q
}

func (q *FuzzyCompletionSuggester) FuzzyMinLength(minLength int) *FuzzyCompletionSuggester {
	q.fuzzyMinLength = &minLength
	return q
}

func (q *FuzzyCompletionSuggester) FuzzyPrefixLength(prefixLength int) *FuzzyCompletionSuggester {
	q.fuzzyPrefixLength = &prefixLength
	return q
}

func (q *FuzzyCompletionSuggester) UnicodeAware(unicodeAware bool) *FuzzyCompletionSuggester {
	q.unicodeAware = &unicodeAware
	return q
}

// Creates the source for the completion suggester.
func (q *FuzzyCompletionSuggester) Source(includeName bool) (interface{}, error) {
	cs := &completionSuggesterRequest{}

	if q.text != "" {
		cs.Text = q.text
	}

	suggester := make(map[string]interface{})
	cs.Completion = suggester

	if q.analyzer != "" {
		suggester["analyzer"] = q.analyzer
	}
	if q.field != "" {
		suggester["field"] = q.field
	}
	if q.size != nil {
		suggester["size"] = *q.size
	}
	if q.shardSize != nil {
		suggester["shard_size"] = *q.shardSize
	}
	switch len(q.contextQueries) {
	case 0:
	case 1:
		src, err := q.contextQueries[0].Source()
		if err != nil {
			return nil, err
		}
		suggester["context"] = src
	default:
		var ctxq []interface{}
		for _, query := range q.contextQueries {
			src, err := query.Source()
			if err != nil {
				return nil, err
			}
			ctxq = append(ctxq, src)
		}
		suggester["context"] = ctxq
	}

	// Fuzzy Completion Suggester fields
	fuzzy := make(map[string]interface{})
	suggester["fuzzy"] = fuzzy
	if q.fuzziness != nil {
		fuzzy["fuzziness"] = q.fuzziness
	}
	if q.fuzzyTranspositions != nil {
		fuzzy["transpositions"] = *q.fuzzyTranspositions
	}
	if q.fuzzyMinLength != nil {
		fuzzy["min_length"] = *q.fuzzyMinLength
	}
	if q.fuzzyPrefixLength != nil {
		fuzzy["prefix_length"] = *q.fuzzyPrefixLength
	}
	if q.unicodeAware != nil {
		fuzzy["unicode_aware"] = *q.unicodeAware
	}

	if !includeName {
		return cs, nil
	}

	source := make(map[string]interface{})
	source[q.name] = cs
	return source, nil
}