api: Implement bucket notification. (#2271)

* 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

vendor/gopkg.in/olivere/elastic.v3/suggester_completion_fuzzy.go

@@ -0,0 +1,179 @@
+// Copyright 2012-2015 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
+
+// FuzzyFuzzyCompletionSuggester is a FuzzyCompletionSuggester that allows fuzzy
+// completion.
+// See http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html
+// for details, and
+// http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html#fuzzy
+// for details about the fuzzy completion suggester.
+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 http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/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:
+		ctxq := make([]interface{}, 0)
+		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
+}