5aa9e95468
index id's are now opaque (until finally returned to top-level user)
- the TermFieldDoc's returned by TermFieldReader no longer contain doc id
- instead they return an opaque IndexInternalID
- items returned are still in the "natural index order"
- but that is no longer guaranteed to be "doc id order"
- correct behavior requires that they all follow the same order
- but not any particular order
- new API FinalizeDocID which converts index internal ID's to public string ID
- APIs used internally which previously took doc id now take IndexInternalID
- that is DocumentFieldTerms() and DocumentFieldTermsForFields()
- however, APIs that are used externally do not reflect this change
- that is Document()
- DocumentIDReader follows the same changes, but this is less obvious
- behavior clarified, used to iterate doc ids, BUT NOT in doc id order
- method STILL available to iterate doc ids in range
- but again, you won't get them in any meaningful order
- new method to iterate actual doc ids from list of possible ids
- this was introduced to make the DocIDSearcher continue working
searchers now work with the new opaque index internal doc ids
- they return new DocumentMatchInternal (which does not have string ID)
scorerers also work with these opaque index internal doc ids
- they return DocumentMatchInternal (which does not have string ID)
collectors now also perform a final step of converting the final result
- they STILL return traditional DocumentMatch (with string ID)
- but they now also require an IndexReader (so that they can do the conversion)
133 lines
3.4 KiB
Go
133 lines
3.4 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 collectors
|
|
|
|
import (
|
|
"bytes"
|
|
|
|
"github.com/blevesearch/bleve/document"
|
|
"github.com/blevesearch/bleve/index"
|
|
"github.com/blevesearch/bleve/search"
|
|
)
|
|
|
|
type stubSearcher struct {
|
|
index int
|
|
matches []*search.DocumentMatchInternal
|
|
}
|
|
|
|
func (ss *stubSearcher) Next(preAllocated *search.DocumentMatchInternal) (*search.DocumentMatchInternal, error) {
|
|
if ss.index < len(ss.matches) {
|
|
rv := ss.matches[ss.index]
|
|
ss.index++
|
|
return rv, nil
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
func (ss *stubSearcher) Advance(ID index.IndexInternalID, preAllocated *search.DocumentMatchInternal) (*search.DocumentMatchInternal, error) {
|
|
|
|
for ss.index < len(ss.matches) && ss.matches[ss.index].ID.Compare(ID) < 0 {
|
|
ss.index++
|
|
}
|
|
if ss.index < len(ss.matches) {
|
|
rv := ss.matches[ss.index]
|
|
ss.index++
|
|
return rv, nil
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
func (ss *stubSearcher) Close() error {
|
|
return nil
|
|
}
|
|
|
|
func (ss *stubSearcher) Weight() float64 {
|
|
return 0.0
|
|
}
|
|
|
|
func (ss *stubSearcher) SetQueryNorm(float64) {
|
|
}
|
|
|
|
func (ss *stubSearcher) Count() uint64 {
|
|
return uint64(len(ss.matches))
|
|
}
|
|
|
|
func (ss *stubSearcher) Min() int {
|
|
return 0
|
|
}
|
|
|
|
type testInternalId []byte
|
|
|
|
func (t testInternalId) Compare(other index.IndexInternalID) int {
|
|
return bytes.Compare(t, other.(testInternalId))
|
|
}
|
|
|
|
func (t testInternalId) Equals(other index.IndexInternalID) bool {
|
|
return t.Compare(other.(testInternalId)) == 0
|
|
}
|
|
|
|
type stubReader struct{}
|
|
|
|
func (sr *stubReader) TermFieldReader(term []byte, field string, includeFreq, includeNorm, includeTermVectors bool) (index.TermFieldReader, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) DocIDReader(start, end string) (index.DocIDReader, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) DocIDReaderOnly(ids []string) (index.DocIDReader, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) FieldDict(field string) (index.FieldDict, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) FieldDictRange(field string, startTerm []byte, endTerm []byte) (index.FieldDict, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) FieldDictPrefix(field string, termPrefix []byte) (index.FieldDict, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) Document(id string) (*document.Document, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) DocumentFieldTerms(id index.IndexInternalID) (index.FieldTerms, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) DocumentFieldTermsForFields(id index.IndexInternalID, fields []string) (index.FieldTerms, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) Fields() ([]string, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) GetInternal(key []byte) ([]byte, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (sr *stubReader) DocCount() uint64 {
|
|
return 0
|
|
}
|
|
|
|
func (sr *stubReader) FinalizeDocID(id index.IndexInternalID) (string, error) {
|
|
return string(id.(testInternalId)), nil
|
|
}
|
|
|
|
func (sr *stubReader) Close() error {
|
|
return nil
|
|
}
|