mirror of
https://bitbucket.org/s_l_teichmann/mtsatellite
synced 2024-09-20 11:40:34 +02:00
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
// Copyright 2014 by Sascha L. Teichmann
|
|
// Use of this source code is governed by the MIT license
|
|
// that can be found in the LICENSE file.
|
|
|
|
package main
|
|
|
|
import (
|
|
"bitbucket.org/s_l_teichmann/mtredisalize/common"
|
|
|
|
leveldb "github.com/jmhodges/levigo"
|
|
)
|
|
|
|
type LevelDBBlockConsumer struct {
|
|
db *leveldb.DB
|
|
wo *leveldb.WriteOptions
|
|
joiner common.KeyJoiner
|
|
encoder common.KeyEncoder
|
|
}
|
|
|
|
func NewLevelDBBlockConsumer(
|
|
path string,
|
|
joiner common.KeyJoiner,
|
|
encoder common.KeyEncoder) (ldbc *LevelDBBlockConsumer, err error) {
|
|
|
|
opts := leveldb.NewOptions()
|
|
opts.SetCreateIfMissing(true)
|
|
|
|
var db *leveldb.DB
|
|
if db, err = leveldb.Open(path, opts); err != nil {
|
|
return
|
|
}
|
|
|
|
ldbc = &LevelDBBlockConsumer{
|
|
db: db,
|
|
wo: leveldb.NewWriteOptions(),
|
|
joiner: joiner,
|
|
encoder: encoder}
|
|
return
|
|
}
|
|
|
|
func (ldbc *LevelDBBlockConsumer) Close() error {
|
|
ldbc.wo.Close()
|
|
ldbc.db.Close()
|
|
return nil
|
|
}
|
|
|
|
func (ldbc *LevelDBBlockConsumer) Consume(block Block) (err error) {
|
|
var encodedKey []byte
|
|
if encodedKey, err = ldbc.encoder(ldbc.joiner(block.Coord)); err != nil {
|
|
return
|
|
}
|
|
err = ldbc.db.Put(ldbc.wo, encodedKey, block.Data)
|
|
return
|
|
}
|