93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
// Copyright (c) 2015 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package firestorm
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import (
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"bytes"
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"fmt"
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"github.com/blevesearch/bleve/index"
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"github.com/blevesearch/bleve/index/store"
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)
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// the functions in this file are only intended to be used by
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// the bleve_dump utility and the debug http handlers
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// if your application relies on them, you're doing something wrong
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// they may change or be removed at any time
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func (f *Firestorm) dumpPrefix(kvreader store.KVReader, rv chan interface{}, prefix []byte) error {
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return visitPrefix(kvreader, prefix, func(key, val []byte) (bool, error) {
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row, err := parseFromKeyValue(key, val)
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if err != nil {
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rv <- err
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return false, err
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}
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rv <- row
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return true, nil
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})
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}
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func (f *Firestorm) dumpDoc(kvreader store.KVReader, rv chan interface{}, docID []byte) error {
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// without a back index we have no choice but to walk the term freq and stored rows
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// walk the term freqs
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err := visitPrefix(kvreader, TermFreqKeyPrefix, func(key, val []byte) (bool, error) {
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tfr, err := NewTermFreqRowKV(key, val)
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if err != nil {
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rv <- err
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return false, err
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}
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if bytes.Compare(tfr.DocID(), docID) == 0 {
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rv <- tfr
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}
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return true, nil
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})
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if err != nil {
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return err
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}
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// now walk the stored
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err = visitPrefix(kvreader, StoredKeyPrefix, func(key, val []byte) (bool, error) {
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sr, err := NewStoredRowKV(key, val)
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if err != nil {
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rv <- err
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return false, err
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}
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if bytes.Compare(sr.DocID(), docID) == 0 {
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rv <- sr
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}
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return true, nil
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})
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return err
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}
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func parseFromKeyValue(key, value []byte) (index.IndexRow, error) {
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if len(key) > 0 {
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switch key[0] {
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case VersionKey[0]:
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return NewVersionRowV(value)
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case FieldKeyPrefix[0]:
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return NewFieldRowKV(key, value)
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case DictionaryKeyPrefix[0]:
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return NewDictionaryRowKV(key, value)
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case TermFreqKeyPrefix[0]:
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return NewTermFreqRowKV(key, value)
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case StoredKeyPrefix[0]:
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return NewStoredRowKV(key, value)
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case InternalKeyPrefix[0]:
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return NewInternalRowKV(key, value)
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}
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return nil, fmt.Errorf("Unknown field type '%s'", string(key[0]))
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}
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return nil, fmt.Errorf("Invalid empty key")
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}
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