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// 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 bleve
import (
"encoding/json"
"sync"
"sync/atomic"
)
type IndexStat struct {
searches uint64
searchTime uint64
i *indexImpl
}
func (is *IndexStat) statsMap() map[string]interface{} {
m := map[string]interface{}{}
m["index"] = is.i.i.StatsMap()
m["searches"] = atomic.LoadUint64(&is.searches)
m["search_time"] = atomic.LoadUint64(&is.searchTime)
return m
}
func (is *IndexStat) MarshalJSON() ([]byte, error) {
m := is.statsMap()
return json.Marshal(m)
}
type IndexStats struct {
indexes map[string]*IndexStat
mutex sync.RWMutex
}
func NewIndexStats() *IndexStats {
return &IndexStats{
indexes: make(map[string]*IndexStat),
}
}
func (i *IndexStats) Register(index Index) {
i.mutex.Lock()
defer i.mutex.Unlock()
i.indexes[index.Name()] = index.Stats()
}
func (i *IndexStats) UnRegister(index Index) {
i.mutex.Lock()
defer i.mutex.Unlock()
delete(i.indexes, index.Name())
}
func (i *IndexStats) String() string {
i.mutex.RLock()
defer i.mutex.RUnlock()
bytes, err := json.Marshal(i.indexes)
if err != nil {
return "error marshaling stats"
}
return string(bytes)
}
var indexStats *IndexStats