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// 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
// Statistical facet allows to compute statistical data on a numeric fields.
// The statistical data include count, total, sum of squares, mean (average),
// minimum, maximum, variance, and standard deviation.
// See: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-facets-statistical-facet.html
type StatisticalScriptFacet struct {
facetFilter Filter
global *bool
nested string
mode string
lang string
script string
params map[string]interface{}
}
func NewStatisticalScriptFacet() StatisticalScriptFacet {
return StatisticalScriptFacet{
params: make(map[string]interface{}),
}
}
func (f StatisticalScriptFacet) FacetFilter(filter Facet) StatisticalScriptFacet {
f.facetFilter = filter
return f
}
func (f StatisticalScriptFacet) Global(global bool) StatisticalScriptFacet {
f.global = &global
return f
}
func (f StatisticalScriptFacet) Nested(nested string) StatisticalScriptFacet {
f.nested = nested
return f
}
func (f StatisticalScriptFacet) Mode(mode string) StatisticalScriptFacet {
f.mode = mode
return f
}
func (f StatisticalScriptFacet) Lang(lang string) StatisticalScriptFacet {
f.lang = lang
return f
}
func (f StatisticalScriptFacet) Script(script string) StatisticalScriptFacet {
f.script = script
return f
}
func (f StatisticalScriptFacet) Param(name string, value interface{}) StatisticalScriptFacet {
f.params[name] = value
return f
}
func (f StatisticalScriptFacet) addFilterFacetAndGlobal(source map[string]interface{}) {
if f.facetFilter != nil {
source["facet_filter"] = f.facetFilter.Source()
}
if f.nested != "" {
source["nested"] = f.nested
}
if f.global != nil {
source["global"] = *f.global
}
if f.mode != "" {
source["mode"] = f.mode
}
}
func (f StatisticalScriptFacet) Source() interface{} {
source := make(map[string]interface{})
f.addFilterFacetAndGlobal(source)
opts := make(map[string]interface{})
source["statistical"] = opts
opts["script"] = f.script
if f.lang != "" {
opts["lang"] = f.lang
}
if len(f.params) > 0 {
opts["params"] = f.params
}
return source
}
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