func (q *allMatchQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
field := q.FieldVal
if q.FieldVal == "" {
field = m.DefaultSearchField()
}
analyzerName := m.AnalyzerNameForPath(field)
analyzer := m.AnalyzerNamed(analyzerName)
tokens := analyzer.Analyze([]byte(q.Match))
if len(tokens) == 0 {
noneQuery := bleve.NewMatchNoneQuery()
return noneQuery.Searcher(i, m, explain)
}
tqs := make([]query.Query, len(tokens))
for i, token := range tokens {
tq := bleve.NewTermQuery(string(token.Term))
tq.SetField(field)
tq.SetBoost(q.BoostVal)
tqs[i] = tq
}
allQuery := bleve.NewConjunctionQuery(tqs...)
allQuery.SetBoost(q.BoostVal)
return allQuery.Searcher(i, m, explain)
}
func (q *TermQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
field := q.Field
if q.Field == "" {
field = m.DefaultSearchField()
}
return searcher.NewTermSearcher(i, q.Term, field, q.Boost.Value(), explain)
}
func (q *MatchPhraseQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
field := q.Field
if q.Field == "" {
field = m.DefaultSearchField()
}
analyzerName := ""
if q.Analyzer != "" {
analyzerName = q.Analyzer
} else {
analyzerName = m.AnalyzerNameForPath(field)
}
analyzer := m.AnalyzerNamed(analyzerName)
if analyzer == nil {
return nil, fmt.Errorf("no analyzer named '%s' registered", q.Analyzer)
}
tokens := analyzer.Analyze([]byte(q.MatchPhrase))
if len(tokens) > 0 {
phrase := tokenStreamToPhrase(tokens)
phraseQuery := NewPhraseQuery(phrase, field)
phraseQuery.SetBoost(q.Boost.Value())
return phraseQuery.Searcher(i, m, explain)
}
noneQuery := NewMatchNoneQuery()
return noneQuery.Searcher(i, m, explain)
}
func (q *MatchQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
field := q.Field
if q.Field == "" {
field = m.DefaultSearchField()
}
analyzerName := ""
if q.Analyzer != "" {
analyzerName = q.Analyzer
} else {
analyzerName = m.AnalyzerNameForPath(field)
}
analyzer := m.AnalyzerNamed(analyzerName)
if analyzer == nil {
return nil, fmt.Errorf("no analyzer named '%s' registered", q.Analyzer)
}
tokens := analyzer.Analyze([]byte(q.Match))
if len(tokens) > 0 {
tqs := make([]Query, len(tokens))
if q.Fuzziness != 0 {
for i, token := range tokens {
query := NewFuzzyQuery(string(token.Term))
query.SetFuzziness(q.Fuzziness)
query.SetPrefix(q.Prefix)
query.SetField(field)
query.SetBoost(q.Boost.Value())
tqs[i] = query
}
} else {
for i, token := range tokens {
tq := NewTermQuery(string(token.Term))
tq.SetField(field)
tq.SetBoost(q.Boost.Value())
tqs[i] = tq
}
}
switch q.Operator {
case MatchQueryOperatorOr:
shouldQuery := NewDisjunctionQuery(tqs)
shouldQuery.SetMin(1)
shouldQuery.SetBoost(q.Boost.Value())
return shouldQuery.Searcher(i, m, explain)
case MatchQueryOperatorAnd:
mustQuery := NewConjunctionQuery(tqs)
mustQuery.SetBoost(q.Boost.Value())
return mustQuery.Searcher(i, m, explain)
default:
return nil, fmt.Errorf("unhandled operator %d", q.Operator)
}
}
noneQuery := NewMatchNoneQuery()
return noneQuery.Searcher(i, m, explain)
}
func (q *NumericRangeQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
field := q.Field
if q.Field == "" {
field = m.DefaultSearchField()
}
return searcher.NewNumericRangeSearcher(i, q.Min, q.Max, q.InclusiveMin, q.InclusiveMax, field, q.Boost.Value(), explain)
}
func (q *RegexpQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
field := q.Field
if q.Field == "" {
field = m.DefaultSearchField()
}
err := q.compile()
if err != nil {
return nil, err
}
return searcher.NewRegexpSearcher(i, q.compiled, field, q.Boost.Value(), explain)
}
func (q *DateRangeQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
min, max, err := q.parseEndpoints()
if err != nil {
return nil, err
}
field := q.Field
if q.Field == "" {
field = m.DefaultSearchField()
}
return searcher.NewNumericRangeSearcher(i, min, max, q.InclusiveStart, q.InclusiveEnd, field, q.Boost.Value(), explain)
}
func (q *WildcardQuery) Searcher(i index.IndexReader, m mapping.IndexMapping, explain bool) (search.Searcher, error) {
field := q.Field
if q.Field == "" {
field = m.DefaultSearchField()
}
if q.compiled == nil {
var err error
q.compiled, err = q.convertToRegexp()
if err != nil {
return nil, err
}
}
return searcher.NewRegexpSearcher(i, q.compiled, field, q.Boost.Value(), explain)
}