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 *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)
}
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 *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 newIndexUsing(path string, mapping mapping.IndexMapping, indexType string, kvstore string, kvconfig map[string]interface{}) (*indexImpl, error) {
// first validate the mapping
err := mapping.Validate()
if err != nil {
return nil, err
}
if kvconfig == nil {
kvconfig = map[string]interface{}{}
}
if kvstore == "" {
return nil, fmt.Errorf("bleve not configured for file based indexing")
}
rv := indexImpl{
path: path,
name: path,
m: mapping,
meta: newIndexMeta(indexType, kvstore, kvconfig),
}
rv.stats = &IndexStat{i: &rv}
// at this point there is hope that we can be successful, so save index meta
if path != "" {
err = rv.meta.Save(path)
if err != nil {
return nil, err
}
kvconfig["create_if_missing"] = true
kvconfig["error_if_exists"] = true
kvconfig["path"] = indexStorePath(path)
} else {
kvconfig["path"] = ""
}
// open the index
indexTypeConstructor := registry.IndexTypeConstructorByName(rv.meta.IndexType)
if indexTypeConstructor == nil {
return nil, ErrorUnknownIndexType
}
rv.i, err = indexTypeConstructor(rv.meta.Storage, kvconfig, Config.analysisQueue)
if err != nil {
return nil, err
}
err = rv.i.Open()
if err != nil {
if err == index.ErrorUnknownStorageType {
return nil, ErrorUnknownStorageType
}
return nil, err
}
// now persist the mapping
mappingBytes, err := json.Marshal(mapping)
if err != nil {
return nil, err
}
err = rv.i.SetInternal(mappingInternalKey, mappingBytes)
if err != nil {
return nil, err
}
// mark the index as open
rv.mutex.Lock()
defer rv.mutex.Unlock()
rv.open = true
indexStats.Register(&rv)
return &rv, nil
}