103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
|
// Copyright (c) 2014 Couchbase, Inc.
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
package query
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/json"
|
||
|
|
|
||
|
|
"github.com/blevesearch/bleve/index"
|
||
|
|
"github.com/blevesearch/bleve/mapping"
|
||
|
|
"github.com/blevesearch/bleve/search"
|
||
|
|
"github.com/blevesearch/bleve/search/searcher"
|
||
|
|
)
|
||
|
|
|
||
|
|
type ConjunctionQuery struct {
|
||
|
|
Conjuncts []Query `json:"conjuncts"`
|
||
|
|
BoostVal *Boost `json:"boost,omitempty"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewConjunctionQuery creates a new compound Query.
|
||
|
|
// Result documents must satisfy all of the queries.
|
||
|
|
func NewConjunctionQuery(conjuncts []Query) *ConjunctionQuery {
|
||
|
|
return &ConjunctionQuery{
|
||
|
|
Conjuncts: conjuncts,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (q *ConjunctionQuery) SetBoost(b float64) {
|
||
|
|
boost := Boost(b)
|
||
|
|
q.BoostVal = &boost
|
||
|
|
}
|
||
|
|
|
||
|
|
func (q *ConjunctionQuery) Boost() float64{
|
||
|
|
return q.BoostVal.Value()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (q *ConjunctionQuery) AddQuery(aq ...Query) {
|
||
|
|
for _, aaq := range aq {
|
||
|
|
q.Conjuncts = append(q.Conjuncts, aaq)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (q *ConjunctionQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
|
||
|
|
ss := make([]search.Searcher, len(q.Conjuncts))
|
||
|
|
for in, conjunct := range q.Conjuncts {
|
||
|
|
var err error
|
||
|
|
ss[in], err = conjunct.Searcher(i, m, explain)
|
||
|
|
if err != nil {
|
||
|
|
for _, searcher := range ss {
|
||
|
|
if searcher != nil {
|
||
|
|
_ = searcher.Close()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return searcher.NewConjunctionSearcher(i, ss, explain)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (q *ConjunctionQuery) Validate() error {
|
||
|
|
for _, q := range q.Conjuncts {
|
||
|
|
if q, ok := q.(ValidatableQuery); ok {
|
||
|
|
err := q.Validate()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (q *ConjunctionQuery) UnmarshalJSON(data []byte) error {
|
||
|
|
tmp := struct {
|
||
|
|
Conjuncts []json.RawMessage `json:"conjuncts"`
|
||
|
|
Boost *Boost `json:"boost,omitempty"`
|
||
|
|
}{}
|
||
|
|
err := json.Unmarshal(data, &tmp)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
q.Conjuncts = make([]Query, len(tmp.Conjuncts))
|
||
|
|
for i, term := range tmp.Conjuncts {
|
||
|
|
query, err := ParseQuery(term)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
q.Conjuncts[i] = query
|
||
|
|
}
|
||
|
|
q.BoostVal = tmp.Boost
|
||
|
|
return nil
|
||
|
|
}
|