/
zip_compress.go
59 lines (52 loc) · 1.52 KB
/
zip_compress.go
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
/*
* 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 compressor
import (
"bytes"
"io"
"github.com/klauspost/compress/zlib"
)
type Zip struct{}
func (z Zip) Compress(data []byte) ([]byte, error) {
var buf bytes.Buffer
var zp = zlib.NewWriter(&buf)
if _, err := zp.Write(data); err != nil {
return nil, err
}
if err := zp.Close(); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
func (z Zip) Decompress(data []byte) ([]byte, error) {
var buf bytes.Buffer
buf.Write(data)
r, err := zlib.NewReader(&buf)
if err != nil {
return nil, err
}
if err := r.Close(); err != nil {
return nil, err
}
if _, err := io.Copy(&buf, r); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
func (z Zip) GetCompressorType() CompressorType {
return CompressorZstd
}