1 files changed, 138 insertions, 0 deletions
diff --git a/vendor/gopkg.in/olivere/elastic.v5/search_aggs_bucket_filters.go b/vendor/gopkg.in/olivere/elastic.v5/search_aggs_bucket_filters.go
new file mode 100644
index 000000000..80999eed9
--- /dev/null
+++ b/vendor/gopkg.in/olivere/elastic.v5/search_aggs_bucket_filters.go
@@ -0,0 +1,138 @@
+// 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"
+
+// FiltersAggregation defines a multi bucket aggregations where each bucket
+// is associated with a filter. Each bucket will collect all documents that
+// match its associated filter.
+//
+// Notice that the caller has to decide whether to add filters by name
+// (using FilterWithName) or unnamed filters (using Filter or Filters). One cannot
+// use both named and unnamed filters.
+//
+// For details, see
+// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-aggregations-bucket-filters-aggregation.html
+type FiltersAggregation struct {
+	unnamedFilters  []Query
+	namedFilters    map[string]Query
+	subAggregations map[string]Aggregation
+	meta            map[string]interface{}
+}
+
+// NewFiltersAggregation initializes a new FiltersAggregation.
+func NewFiltersAggregation() *FiltersAggregation {
+	return &FiltersAggregation{
+		unnamedFilters:  make([]Query, 0),
+		namedFilters:    make(map[string]Query),
+		subAggregations: make(map[string]Aggregation),
+	}
+}
+
+// Filter adds an unnamed filter. Notice that you can
+// either use named or unnamed filters, but not both.
+func (a *FiltersAggregation) Filter(filter Query) *FiltersAggregation {
+	a.unnamedFilters = append(a.unnamedFilters, filter)
+	return a
+}
+
+// Filters adds one or more unnamed filters. Notice that you can
+// either use named or unnamed filters, but not both.
+func (a *FiltersAggregation) Filters(filters ...Query) *FiltersAggregation {
+	if len(filters) > 0 {
+		a.unnamedFilters = append(a.unnamedFilters, filters...)
+	}
+	return a
+}
+
+// FilterWithName adds a filter with a specific name. Notice that you can
+// either use named or unnamed filters, but not both.
+func (a *FiltersAggregation) FilterWithName(name string, filter Query) *FiltersAggregation {
+	a.namedFilters[name] = filter
+	return a
+}
+
+// SubAggregation adds a sub-aggregation to this aggregation.
+func (a *FiltersAggregation) SubAggregation(name string, subAggregation Aggregation) *FiltersAggregation {
+	a.subAggregations[name] = subAggregation
+	return a
+}
+
+// Meta sets the meta data to be included in the aggregation response.
+func (a *FiltersAggregation) Meta(metaData map[string]interface{}) *FiltersAggregation {
+	a.meta = metaData
+	return a
+}
+
+// Source returns the a JSON-serializable interface.
+// If the aggregation is invalid, an error is returned. This may e.g. happen
+// if you mixed named and unnamed filters.
+func (a *FiltersAggregation) Source() (interface{}, error) {
+	// Example:
+	//	{
+	//  "aggs" : {
+	//    "messages" : {
+	//      "filters" : {
+	//        "filters" : {
+	//          "errors" :   { "term" : { "body" : "error"   }},
+	//          "warnings" : { "term" : { "body" : "warning" }}
+	//        }
+	//      }
+	//    }
+	//  }
+	//	}
+	// This method returns only the (outer) { "filters" : {} } part.
+
+	source := make(map[string]interface{})
+	filters := make(map[string]interface{})
+	source["filters"] = filters
+
+	if len(a.unnamedFilters) > 0 && len(a.namedFilters) > 0 {
+		return nil, errors.New("elastic: use either named or unnamed filters with FiltersAggregation but not both")
+	}
+
+	if len(a.unnamedFilters) > 0 {
+		arr := make([]interface{}, len(a.unnamedFilters))
+		for i, filter := range a.unnamedFilters {
+			src, err := filter.Source()
+			if err != nil {
+				return nil, err
+			}
+			arr[i] = src
+		}
+		filters["filters"] = arr
+	} else {
+		dict := make(map[string]interface{})
+		for key, filter := range a.namedFilters {
+			src, err := filter.Source()
+			if err != nil {
+				return nil, err
+			}
+			dict[key] = src
+		}
+		filters["filters"] = dict
+	}
+
+	// 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
+}