You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.1 KiB
88 lines
2.1 KiB
// 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 collector
|
|
|
|
import (
|
|
"container/list"
|
|
|
|
"github.com/blevesearch/bleve/search"
|
|
)
|
|
|
|
type collectStoreList struct {
|
|
results *list.List
|
|
compare collectorCompare
|
|
}
|
|
|
|
func newStoreList(cap int, compare collectorCompare) *collectStoreList {
|
|
rv := &collectStoreList{
|
|
results: list.New(),
|
|
compare: compare,
|
|
}
|
|
|
|
return rv
|
|
}
|
|
|
|
func (c *collectStoreList) AddNotExceedingSize(doc *search.DocumentMatch,
|
|
size int) *search.DocumentMatch {
|
|
c.add(doc)
|
|
if c.len() > size {
|
|
return c.removeLast()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *collectStoreList) add(doc *search.DocumentMatch) {
|
|
for e := c.results.Front(); e != nil; e = e.Next() {
|
|
curr := e.Value.(*search.DocumentMatch)
|
|
if c.compare(doc, curr) >= 0 {
|
|
c.results.InsertBefore(doc, e)
|
|
return
|
|
}
|
|
}
|
|
// if we got to the end, we still have to add it
|
|
c.results.PushBack(doc)
|
|
}
|
|
|
|
func (c *collectStoreList) removeLast() *search.DocumentMatch {
|
|
return c.results.Remove(c.results.Front()).(*search.DocumentMatch)
|
|
}
|
|
|
|
func (c *collectStoreList) Final(skip int, fixup collectorFixup) (search.DocumentMatchCollection, error) {
|
|
if c.results.Len()-skip > 0 {
|
|
rv := make(search.DocumentMatchCollection, c.results.Len()-skip)
|
|
i := 0
|
|
skipped := 0
|
|
for e := c.results.Back(); e != nil; e = e.Prev() {
|
|
if skipped < skip {
|
|
skipped++
|
|
continue
|
|
}
|
|
|
|
rv[i] = e.Value.(*search.DocumentMatch)
|
|
err := fixup(rv[i])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
i++
|
|
}
|
|
return rv, nil
|
|
}
|
|
return search.DocumentMatchCollection{}, nil
|
|
}
|
|
|
|
func (c *collectStoreList) len() int {
|
|
return c.results.Len()
|
|
}
|