Albirew/nyaa-pantsu
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nyaa-pantsu/vendor/gopkg.in/olivere/elastic.v5/suggester_completion.go
akuma06 a41f938cec Add Godep support (#758)
As we have seen, dependencies version can prevent the build. We should
user lock versions on dependencies that we know work:
* Packages are vendored
* Add Godep support
* Added addtional install step in readme
* Fix travis build error
2017-05-26 13:07:22 +02:00

138 lignes
3,4 Kio
Go

// 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"
// CompletionSuggester is a fast suggester for e.g. type-ahead completion.
// See https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-suggesters-completion.html
// for more details.
type CompletionSuggester struct {
Suggester
name string
text string
field string
analyzer string
size *int
shardSize *int
contextQueries []SuggesterContextQuery
}
// Creates a new completion suggester.
func NewCompletionSuggester(name string) *CompletionSuggester {
return &CompletionSuggester{
name: name,
contextQueries: make([]SuggesterContextQuery, 0),
}
}
func (q *CompletionSuggester) Name() string {
return q.name
}
func (q *CompletionSuggester) Text(text string) *CompletionSuggester {
q.text = text
return q
}
func (q *CompletionSuggester) Field(field string) *CompletionSuggester {
q.field = field
return q
}
func (q *CompletionSuggester) Analyzer(analyzer string) *CompletionSuggester {
q.analyzer = analyzer
return q
}
func (q *CompletionSuggester) Size(size int) *CompletionSuggester {
q.size = &size
return q
}
func (q *CompletionSuggester) ShardSize(shardSize int) *CompletionSuggester {
q.shardSize = &shardSize
return q
}
func (q *CompletionSuggester) ContextQuery(query SuggesterContextQuery) *CompletionSuggester {
q.contextQueries = append(q.contextQueries, query)
return q
}
func (q *CompletionSuggester) ContextQueries(queries ...SuggesterContextQuery) *CompletionSuggester {
q.contextQueries = append(q.contextQueries, queries...)
return q
}
// completionSuggesterRequest is necessary because the order in which
// the JSON elements are routed to Elasticsearch is relevant.
// We got into trouble when using plain maps because the text element
// needs to go before the completion element.
type completionSuggesterRequest struct {
Text string `json:"text"`
Completion interface{} `json:"completion"`
}
// Creates the source for the completion suggester.
func (q *CompletionSuggester) 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:
ctxq := make(map[string]interface{})
for _, query := range q.contextQueries {
src, err := query.Source()
if err != nil {
return nil, err
}
// Merge the dictionary into ctxq
m, ok := src.(map[string]interface{})
if !ok {
return nil, errors.New("elastic: context query is not a map")
}
for k, v := range m {
ctxq[k] = v
}
}
suggester["context"] = ctxq
}
// TODO(oe) Add completion-suggester specific parameters here
if !includeName {
return cs, nil
}
source := make(map[string]interface{})
source[q.name] = cs
return source, nil
}