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// 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
type Rescorer interface {
Name() string
Source() (interface{}, error)
}
// -- Query Rescorer --
type QueryRescorer struct {
query Query
rescoreQueryWeight *float64
queryWeight *float64
scoreMode string
}
func NewQueryRescorer(query Query) *QueryRescorer {
return &QueryRescorer{
query: query,
}
}
func (r *QueryRescorer) Name() string {
return "query"
}
func (r *QueryRescorer) RescoreQueryWeight(rescoreQueryWeight float64) *QueryRescorer {
r.rescoreQueryWeight = &rescoreQueryWeight
return r
}
func (r *QueryRescorer) QueryWeight(queryWeight float64) *QueryRescorer {
r.queryWeight = &queryWeight
return r
}
func (r *QueryRescorer) ScoreMode(scoreMode string) *QueryRescorer {
r.scoreMode = scoreMode
return r
}
func (r *QueryRescorer) Source() (interface{}, error) {
rescoreQuery, err := r.query.Source()
if err != nil {
return nil, err
}
source := make(map[string]interface{})
source["rescore_query"] = rescoreQuery
if r.queryWeight != nil {
source["query_weight"] = *r.queryWeight
}
if r.rescoreQueryWeight != nil {
source["rescore_query_weight"] = *r.rescoreQueryWeight
}
if r.scoreMode != "" {
source["score_mode"] = r.scoreMode
}
return source, nil
}
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