surrealpatch/kvs/ds.go
2017-02-09 11:16:59 +00:00

81 lines
1.8 KiB
Go

// Copyright © 2016 Abcum Ltd
//
// 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 kvs
import (
"strings"
"github.com/abcum/surreal/cnf"
)
var stores = make(map[string]func(*cnf.Options) (DB, error))
// DB represents a backing datastore.
type DS struct {
db DB
}
// New sets up the underlying key-value store
func New(opts *cnf.Options) (ds *DS, err error) {
var db DB
switch {
case opts.DB.Path == "memory":
db, err = stores["rixxdb"](opts)
case strings.HasPrefix(opts.DB.Path, "s3://"):
db, err = stores["rixxdb"](opts)
case strings.HasPrefix(opts.DB.Path, "gcs://"):
db, err = stores["rixxdb"](opts)
case strings.HasPrefix(opts.DB.Path, "logr://"):
db, err = stores["rixxdb"](opts)
case strings.HasPrefix(opts.DB.Path, "file://"):
db, err = stores["rixxdb"](opts)
case strings.HasPrefix(opts.DB.Path, "rixxdb://"):
db, err = stores["rixxdb"](opts)
case strings.HasPrefix(opts.DB.Path, "dendrodb://"):
db, err = stores["dendro"](opts)
}
if err != nil {
return
}
ds = &DS{db: db}
return
}
// Begin ...
func (ds *DS) Begin(writable bool) (txn TX, err error) {
return ds.db.Begin(writable)
}
// Close ...
func (ds *DS) Close() (err error) {
return ds.db.Close()
}
func Register(name string, constructor func(*cnf.Options) (DB, error)) {
stores[name] = constructor
}