/
doc.go
46 lines (40 loc) · 1.24 KB
/
doc.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
/**
* Copyright 2014 Paul Querna
*
* 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 notify
import (
"github.com/pquerna/distsync/common"
"errors"
"strings"
)
// A notifier provides a channel for when
// the Backend storage area has changed.
// Callers should then call their Storage engine with List().
type Notifier interface {
Start() error
Stop() error
// Channel gets a single item when something changes.
Changed() chan int
}
func NewFromConf(c *common.Conf) (Notifier, error) {
switch strings.ToUpper(c.Notify) {
case "S3POLL":
return NewS3Poll(c.Aws, c.StorageBucket)
case "CLOUDFILESPOLL":
return NewCloudFilesPoll(c.Rackspace, c.StorageBucket)
}
return nil, errors.New("Unknown Notify backend: " + c.Notify)
}