2968d3538a
removed analyzers (these are now built as needed through config) removed html chacter filter (now built as needed through config) added missing license header changed constructor signature of filters that cannot return errors filter constructors that can have errors, now have Must variant which panics change cdl2 tokenizer into filter (should only see lower-case input) new top level index api, closes #5 refactored index tests to not rely directly on analyzers moved query objects to top-level new top level search api, closes #12 top score collector allows skipping results index mapping supports _all by default, closes #3 and closes #6 index mapping supports disabled sections, closes #7 new http sub package with reusable http.Handler's, closes #22
110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
// Copyright (c) 2014 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 gouchstore
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import (
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"fmt"
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"github.com/mschoch/gouchstore"
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)
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type GouchstoreIterator struct {
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store *GouchstoreStore
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valid bool
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curr *gouchstore.DocumentInfo
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diChan chan *gouchstore.DocumentInfo
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closeChan chan bool
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}
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func newGouchstoreIterator(store *GouchstoreStore) *GouchstoreIterator {
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rv := GouchstoreIterator{
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store: store,
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}
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return &rv
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}
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func (gi *GouchstoreIterator) cleanupExistingIterator() {
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if gi.closeChan != nil {
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close(gi.closeChan)
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alive := true
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for alive {
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_, alive = <-gi.diChan
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}
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gi.closeChan = nil
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}
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}
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func (gi *GouchstoreIterator) SeekFirst() {
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gi.Seek([]byte{})
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}
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func (gi *GouchstoreIterator) Seek(key []byte) {
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gi.cleanupExistingIterator()
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gi.curr = nil
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gi.diChan = make(chan *gouchstore.DocumentInfo)
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gi.closeChan = make(chan bool)
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wtCallback := func(gouchstore *gouchstore.Gouchstore, depth int, documentInfo *gouchstore.DocumentInfo, key []byte, subTreeSize uint64, reducedValue []byte, userContext interface{}) error {
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if documentInfo != nil && documentInfo.Deleted == false {
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select {
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case gi.diChan <- documentInfo:
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gi.valid = true
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case <-gi.closeChan:
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return fmt.Errorf("seek aborted")
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}
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}
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return nil
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}
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go func() {
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gi.store.db.WalkIdTree(string(key), "", wtCallback, nil)
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close(gi.diChan)
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}()
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gi.curr = <-gi.diChan
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}
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func (gi *GouchstoreIterator) Current() ([]byte, []byte, bool) {
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if gi.Valid() {
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return gi.Key(), gi.Value(), true
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}
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return nil, nil, false
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}
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func (gi *GouchstoreIterator) Next() {
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gi.curr = <-gi.diChan
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if gi.curr == nil {
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gi.valid = false
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}
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}
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func (gi *GouchstoreIterator) Key() []byte {
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if gi.curr != nil {
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return []byte(gi.curr.ID)
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}
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return nil
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}
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func (gi *GouchstoreIterator) Value() []byte {
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if gi.curr != nil {
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doc, err := gi.store.db.DocumentByDocumentInfo(gi.curr)
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if err == nil {
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return doc.Body
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}
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}
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return nil
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}
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func (gi *GouchstoreIterator) Valid() bool {
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return gi.valid
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}
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func (gi *GouchstoreIterator) Close() {
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gi.cleanupExistingIterator()
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}
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