1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 compress
import (
"io"
"github.com/golang/snappy"
)
type snappyCodec struct{}
func (snappyCodec) Encode(dst, src []byte) []byte {
return snappy.Encode(dst, src)
}
func (snappyCodec) EncodeLevel(dst, src []byte, _ int) []byte {
return snappy.Encode(dst, src)
}
func (snappyCodec) Decode(dst, src []byte) []byte {
dst, err := snappy.Decode(dst, src)
if err != nil {
panic(err)
}
return dst
}
func (snappyCodec) NewReader(r io.Reader) io.ReadCloser {
return io.NopCloser(snappy.NewReader(r))
}
func (snappyCodec) CompressBound(len int64) int64 {
return int64(snappy.MaxEncodedLen(int(len)))
}
func (snappyCodec) NewWriter(w io.Writer) io.WriteCloser {
return snappy.NewBufferedWriter(w)
}
func (s snappyCodec) NewWriterLevel(w io.Writer, _ int) (io.WriteCloser, error) {
return s.NewWriter(w), nil
}
func init() {
RegisterCodec(Codecs.Snappy, snappyCodec{})
}
|
