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f248089523
* Implement basic S3 notifications through queues Supports multiple queues and three basic queue types: 1. NilQueue -- messages don't get sent anywhere 2. LogQueue -- messages get logged 3. AmqpQueue -- messages are sent to an AMQP queue * api: Implement bucket notification. Supports two different queue types - AMQP - ElasticSearch. * Add support for redis
130 lines
3.2 KiB
Go
130 lines
3.2 KiB
Go
// Copyright 2012-2015 Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package elastic
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// CompletionSuggester is a fast suggester for e.g. type-ahead completion.
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// See http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html
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// for more details.
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type CompletionSuggester struct {
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Suggester
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name string
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text string
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field string
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analyzer string
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size *int
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shardSize *int
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contextQueries []SuggesterContextQuery
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}
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// Creates a new completion suggester.
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func NewCompletionSuggester(name string) *CompletionSuggester {
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return &CompletionSuggester{
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name: name,
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contextQueries: make([]SuggesterContextQuery, 0),
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}
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}
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func (q *CompletionSuggester) Name() string {
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return q.name
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}
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func (q *CompletionSuggester) Text(text string) *CompletionSuggester {
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q.text = text
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return q
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}
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func (q *CompletionSuggester) Field(field string) *CompletionSuggester {
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q.field = field
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return q
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}
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func (q *CompletionSuggester) Analyzer(analyzer string) *CompletionSuggester {
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q.analyzer = analyzer
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return q
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}
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func (q *CompletionSuggester) Size(size int) *CompletionSuggester {
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q.size = &size
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return q
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}
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func (q *CompletionSuggester) ShardSize(shardSize int) *CompletionSuggester {
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q.shardSize = &shardSize
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return q
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}
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func (q *CompletionSuggester) ContextQuery(query SuggesterContextQuery) *CompletionSuggester {
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q.contextQueries = append(q.contextQueries, query)
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return q
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}
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func (q *CompletionSuggester) ContextQueries(queries ...SuggesterContextQuery) *CompletionSuggester {
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q.contextQueries = append(q.contextQueries, queries...)
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return q
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}
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// completionSuggesterRequest is necessary because the order in which
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// the JSON elements are routed to Elasticsearch is relevant.
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// We got into trouble when using plain maps because the text element
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// needs to go before the completion element.
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type completionSuggesterRequest struct {
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Text string `json:"text"`
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Completion interface{} `json:"completion"`
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}
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// Creates the source for the completion suggester.
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func (q *CompletionSuggester) Source(includeName bool) (interface{}, error) {
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cs := &completionSuggesterRequest{}
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if q.text != "" {
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cs.Text = q.text
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}
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suggester := make(map[string]interface{})
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cs.Completion = suggester
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if q.analyzer != "" {
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suggester["analyzer"] = q.analyzer
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}
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if q.field != "" {
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suggester["field"] = q.field
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}
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if q.size != nil {
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suggester["size"] = *q.size
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}
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if q.shardSize != nil {
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suggester["shard_size"] = *q.shardSize
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}
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switch len(q.contextQueries) {
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case 0:
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case 1:
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src, err := q.contextQueries[0].Source()
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if err != nil {
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return nil, err
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}
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suggester["context"] = src
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default:
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ctxq := make([]interface{}, 0)
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for _, query := range q.contextQueries {
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src, err := query.Source()
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if err != nil {
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return nil, err
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}
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ctxq = append(ctxq, src)
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}
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suggester["context"] = ctxq
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}
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// TODO(oe) Add completion-suggester specific parameters here
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if !includeName {
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return cs, nil
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}
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source := make(map[string]interface{})
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source[q.name] = cs
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return source, nil
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}
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