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store.go
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store.go
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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 registry
import (
"fmt"
"github.com/blevesearch/bleve/index/store"
)
func RegisterKVStore(name string, constructor KVStoreConstructor) {
_, exists := stores[name]
if exists {
panic(fmt.Errorf("attempted to register duplicate store named '%s'", name))
}
stores[name] = constructor
}
type KVStoreConstructor func(config map[string]interface{}) (store.KVStore, error)
type KVStoreRegistry map[string]KVStoreConstructor
func KVStoreConstructorByName(name string) KVStoreConstructor {
return stores[name]
}
func KVStoreTypesAndInstances() ([]string, []string) {
emptyConfig := map[string]interface{}{}
types := make([]string, 0)
instances := make([]string, 0)
for name, cons := range stores {
_, err := cons(emptyConfig)
if err == nil {
instances = append(instances, name)
} else {
types = append(types, name)
}
}
return types, instances
}