PLT-6398: Add dependency on go elastic search library. (#6340)

1 files changed, 352 insertions, 0 deletions

diff --git a/vendor/gopkg.in/olivere/elastic.v5/search_aggs_bucket_terms.go b/vendor/gopkg.in/olivere/elastic.v5/search_aggs_bucket_terms.go
new file mode 100644
index 000000000..5497aa6e9
--- /dev/null
+++ b/vendor/gopkg.in/olivere/elastic.v5/search_aggs_bucket_terms.go
@@ -0,0 +1,352 @@
+// 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
+
+// TermsAggregation is a multi-bucket value source based aggregation
+// where buckets are dynamically built - one per unique value.
+// See: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-aggregations-bucket-terms-aggregation.html
+type TermsAggregation struct {
+	field           string
+	script          *Script
+	missing         interface{}
+	subAggregations map[string]Aggregation
+	meta            map[string]interface{}
+
+	size                  *int
+	shardSize             *int
+	requiredSize          *int
+	minDocCount           *int
+	shardMinDocCount      *int
+	valueType             string
+	includePattern        string
+	includeFlags          *int
+	excludePattern        string
+	excludeFlags          *int
+	executionHint         string
+	collectionMode        string
+	showTermDocCountError *bool
+	includeTerms          []string
+	excludeTerms          []string
+	order                 []TermsOrder
+}
+
+func NewTermsAggregation() *TermsAggregation {
+	return &TermsAggregation{
+		subAggregations: make(map[string]Aggregation, 0),
+	}
+}
+
+func (a *TermsAggregation) Field(field string) *TermsAggregation {
+	a.field = field
+	return a
+}
+
+func (a *TermsAggregation) Script(script *Script) *TermsAggregation {
+	a.script = script
+	return a
+}
+
+// Missing configures the value to use when documents miss a value.
+func (a *TermsAggregation) Missing(missing interface{}) *TermsAggregation {
+	a.missing = missing
+	return a
+}
+
+func (a *TermsAggregation) SubAggregation(name string, subAggregation Aggregation) *TermsAggregation {
+	a.subAggregations[name] = subAggregation
+	return a
+}
+
+// Meta sets the meta data to be included in the aggregation response.
+func (a *TermsAggregation) Meta(metaData map[string]interface{}) *TermsAggregation {
+	a.meta = metaData
+	return a
+}
+
+func (a *TermsAggregation) Size(size int) *TermsAggregation {
+	a.size = &size
+	return a
+}
+
+func (a *TermsAggregation) RequiredSize(requiredSize int) *TermsAggregation {
+	a.requiredSize = &requiredSize
+	return a
+}
+
+func (a *TermsAggregation) ShardSize(shardSize int) *TermsAggregation {
+	a.shardSize = &shardSize
+	return a
+}
+
+func (a *TermsAggregation) MinDocCount(minDocCount int) *TermsAggregation {
+	a.minDocCount = &minDocCount
+	return a
+}
+
+func (a *TermsAggregation) ShardMinDocCount(shardMinDocCount int) *TermsAggregation {
+	a.shardMinDocCount = &shardMinDocCount
+	return a
+}
+
+func (a *TermsAggregation) Include(regexp string) *TermsAggregation {
+	a.includePattern = regexp
+	return a
+}
+
+func (a *TermsAggregation) IncludeWithFlags(regexp string, flags int) *TermsAggregation {
+	a.includePattern = regexp
+	a.includeFlags = &flags
+	return a
+}
+
+func (a *TermsAggregation) Exclude(regexp string) *TermsAggregation {
+	a.excludePattern = regexp
+	return a
+}
+
+func (a *TermsAggregation) ExcludeWithFlags(regexp string, flags int) *TermsAggregation {
+	a.excludePattern = regexp
+	a.excludeFlags = &flags
+	return a
+}
+
+// ValueType can be string, long, or double.
+func (a *TermsAggregation) ValueType(valueType string) *TermsAggregation {
+	a.valueType = valueType
+	return a
+}
+
+func (a *TermsAggregation) Order(order string, asc bool) *TermsAggregation {
+	a.order = append(a.order, TermsOrder{Field: order, Ascending: asc})
+	return a
+}
+
+func (a *TermsAggregation) OrderByCount(asc bool) *TermsAggregation {
+	// "order" : { "_count" : "asc" }
+	a.order = append(a.order, TermsOrder{Field: "_count", Ascending: asc})
+	return a
+}
+
+func (a *TermsAggregation) OrderByCountAsc() *TermsAggregation {
+	return a.OrderByCount(true)
+}
+
+func (a *TermsAggregation) OrderByCountDesc() *TermsAggregation {
+	return a.OrderByCount(false)
+}
+
+func (a *TermsAggregation) OrderByTerm(asc bool) *TermsAggregation {
+	// "order" : { "_term" : "asc" }
+	a.order = append(a.order, TermsOrder{Field: "_term", Ascending: asc})
+	return a
+}
+
+func (a *TermsAggregation) OrderByTermAsc() *TermsAggregation {
+	return a.OrderByTerm(true)
+}
+
+func (a *TermsAggregation) OrderByTermDesc() *TermsAggregation {
+	return a.OrderByTerm(false)
+}
+
+// OrderByAggregation creates a bucket ordering strategy which sorts buckets
+// based on a single-valued calc get.
+func (a *TermsAggregation) OrderByAggregation(aggName string, asc bool) *TermsAggregation {
+	// {
+	//     "aggs" : {
+	//         "genders" : {
+	//             "terms" : {
+	//                 "field" : "gender",
+	//                 "order" : { "avg_height" : "desc" }
+	//             },
+	//             "aggs" : {
+	//                 "avg_height" : { "avg" : { "field" : "height" } }
+	//             }
+	//         }
+	//     }
+	// }
+	a.order = append(a.order, TermsOrder{Field: aggName, Ascending: asc})
+	return a
+}
+
+// OrderByAggregationAndMetric creates a bucket ordering strategy which
+// sorts buckets based on a multi-valued calc get.
+func (a *TermsAggregation) OrderByAggregationAndMetric(aggName, metric string, asc bool) *TermsAggregation {
+	// {
+	//     "aggs" : {
+	//         "genders" : {
+	//             "terms" : {
+	//                 "field" : "gender",
+	//                 "order" : { "height_stats.avg" : "desc" }
+	//             },
+	//             "aggs" : {
+	//                 "height_stats" : { "stats" : { "field" : "height" } }
+	//             }
+	//         }
+	//     }
+	// }
+	a.order = append(a.order, TermsOrder{Field: aggName + "." + metric, Ascending: asc})
+	return a
+}
+
+func (a *TermsAggregation) ExecutionHint(hint string) *TermsAggregation {
+	a.executionHint = hint
+	return a
+}
+
+// Collection mode can be depth_first or breadth_first as of 1.4.0.
+func (a *TermsAggregation) CollectionMode(collectionMode string) *TermsAggregation {
+	a.collectionMode = collectionMode
+	return a
+}
+
+func (a *TermsAggregation) ShowTermDocCountError(showTermDocCountError bool) *TermsAggregation {
+	a.showTermDocCountError = &showTermDocCountError
+	return a
+}
+
+func (a *TermsAggregation) IncludeTerms(terms ...string) *TermsAggregation {
+	a.includeTerms = append(a.includeTerms, terms...)
+	return a
+}
+
+func (a *TermsAggregation) ExcludeTerms(terms ...string) *TermsAggregation {
+	a.excludeTerms = append(a.excludeTerms, terms...)
+	return a
+}
+
+func (a *TermsAggregation) Source() (interface{}, error) {
+	// Example:
+	//	{
+	//    "aggs" : {
+	//      "genders" : {
+	//        "terms" : { "field" : "gender" }
+	//      }
+	//    }
+	//	}
+	// This method returns only the { "terms" : { "field" : "gender" } } part.
+
+	source := make(map[string]interface{})
+	opts := make(map[string]interface{})
+	source["terms"] = opts
+
+	// ValuesSourceAggregationBuilder
+	if a.field != "" {
+		opts["field"] = a.field
+	}
+	if a.script != nil {
+		src, err := a.script.Source()
+		if err != nil {
+			return nil, err
+		}
+		opts["script"] = src
+	}
+	if a.missing != nil {
+		opts["missing"] = a.missing
+	}
+
+	// TermsBuilder
+	if a.size != nil && *a.size >= 0 {
+		opts["size"] = *a.size
+	}
+	if a.shardSize != nil && *a.shardSize >= 0 {
+		opts["shard_size"] = *a.shardSize
+	}
+	if a.requiredSize != nil && *a.requiredSize >= 0 {
+		opts["required_size"] = *a.requiredSize
+	}
+	if a.minDocCount != nil && *a.minDocCount >= 0 {
+		opts["min_doc_count"] = *a.minDocCount
+	}
+	if a.shardMinDocCount != nil && *a.shardMinDocCount >= 0 {
+		opts["shard_min_doc_count"] = *a.shardMinDocCount
+	}
+	if a.showTermDocCountError != nil {
+		opts["show_term_doc_count_error"] = *a.showTermDocCountError
+	}
+	if a.collectionMode != "" {
+		opts["collect_mode"] = a.collectionMode
+	}
+	if a.valueType != "" {
+		opts["value_type"] = a.valueType
+	}
+	if len(a.order) > 0 {
+		var orderSlice []interface{}
+		for _, order := range a.order {
+			src, err := order.Source()
+			if err != nil {
+				return nil, err
+			}
+			orderSlice = append(orderSlice, src)
+		}
+		opts["order"] = orderSlice
+	}
+	if len(a.includeTerms) > 0 {
+		opts["include"] = a.includeTerms
+	}
+	if a.includePattern != "" {
+		if a.includeFlags == nil || *a.includeFlags == 0 {
+			opts["include"] = a.includePattern
+		} else {
+			p := make(map[string]interface{})
+			p["pattern"] = a.includePattern
+			p["flags"] = *a.includeFlags
+			opts["include"] = p
+		}
+	}
+	if len(a.excludeTerms) > 0 {
+		opts["exclude"] = a.excludeTerms
+	}
+	if a.excludePattern != "" {
+		if a.excludeFlags == nil || *a.excludeFlags == 0 {
+			opts["exclude"] = a.excludePattern
+		} else {
+			p := make(map[string]interface{})
+			p["pattern"] = a.excludePattern
+			p["flags"] = *a.excludeFlags
+			opts["exclude"] = p
+		}
+	}
+	if a.executionHint != "" {
+		opts["execution_hint"] = a.executionHint
+	}
+
+	// AggregationBuilder (SubAggregations)
+	if len(a.subAggregations) > 0 {
+		aggsMap := make(map[string]interface{})
+		source["aggregations"] = aggsMap
+		for name, aggregate := range a.subAggregations {
+			src, err := aggregate.Source()
+			if err != nil {
+				return nil, err
+			}
+			aggsMap[name] = src
+		}
+	}
+
+	// Add Meta data if available
+	if len(a.meta) > 0 {
+		source["meta"] = a.meta
+	}
+
+	return source, nil
+}
+
+// TermsOrder specifies a single order field for a terms aggregation.
+type TermsOrder struct {
+	Field     string
+	Ascending bool
+}
+
+// Source returns serializable JSON of the TermsOrder.
+func (order *TermsOrder) Source() (interface{}, error) {
+	source := make(map[string]string)
+	if order.Ascending {
+		source[order.Field] = "asc"
+	} else {
+		source[order.Field] = "desc"
+	}
+	return source, nil
+}