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
62
|
package imagestore
import (
"io/ioutil"
"log"
"golang.org/x/net/context"
"google.golang.org/cloud/storage"
)
type GCSImageStore struct {
ctx context.Context
bucketName string
storeRoot string
namePathMapper *NamePathMapper
}
func NewGCSImageStore(ctx context.Context, bucket string, root string, mapper *NamePathMapper) *GCSImageStore {
return &GCSImageStore{
ctx: ctx,
bucketName: bucket,
storeRoot: root,
namePathMapper: mapper,
}
}
func (this *GCSImageStore) Exists(obj *StoreObject) (bool, error) {
_, err := storage.StatObject(this.ctx, this.bucketName, this.toPath(obj))
if err != nil {
return false, err
}
return true, nil
}
func (this *GCSImageStore) Save(src string, obj *StoreObject, url string) (*StoreObject, error) {
data, err := ioutil.ReadFile(src)
if err != nil {
log.Printf("error on read file: %s", err)
return nil, err
}
wc := storage.NewWriter(this.ctx, this.bucketName, this.toPath(obj))
wc.ContentType = obj.MimeType
if _, err := wc.Write(data); err != nil {
log.Printf("error on write data: %s", err)
return nil, err
}
if err := wc.Close(); err != nil {
log.Printf("error on close writer: %s", err)
return nil, err
}
obj.Url = "https://storage.googleapis.com/" + this.bucketName + "/" + this.toPath(obj)
return obj, nil
}
func (this *GCSImageStore) toPath(obj *StoreObject) string {
if this.storeRoot != "" {
return this.storeRoot + "/" + this.namePathMapper.mapToPath(obj)
}
return this.namePathMapper.mapToPath(obj)
}
|
