/
commit_log.go
85 lines (76 loc) · 2.67 KB
/
commit_log.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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Package commitlog implements commit log bootstrapping.
package commitlog
import (
"github.com/m3db/m3/src/dbnode/persist/fs"
"github.com/m3db/m3/src/dbnode/storage/bootstrap"
"github.com/m3db/m3/src/dbnode/storage/bootstrap/bootstrapper"
)
const (
// CommitLogBootstrapperName is the name of the commit log bootstrapper.
CommitLogBootstrapperName = "commitlog"
)
type commitLogBootstrapperProvider struct {
opts Options
inspection fs.Inspection
next bootstrap.BootstrapperProvider
}
// NewCommitLogBootstrapperProvider creates a new bootstrapper provider
// to bootstrap from commit log files.
func NewCommitLogBootstrapperProvider(
opts Options,
inspection fs.Inspection,
next bootstrap.BootstrapperProvider,
) (bootstrap.BootstrapperProvider, error) {
if err := opts.Validate(); err != nil {
return nil, err
}
return commitLogBootstrapperProvider{
opts: opts,
inspection: inspection,
next: next,
}, nil
}
func (p commitLogBootstrapperProvider) Provide() (bootstrap.Bootstrapper, error) {
var (
src = newCommitLogSource(p.opts, p.inspection)
b = &commitLogBootstrapper{}
next bootstrap.Bootstrapper
err error
)
if p.next != nil {
next, err = p.next.Provide()
if err != nil {
return nil, err
}
}
return bootstrapper.NewBaseBootstrapper(b.String(),
src, p.opts.ResultOptions(), next)
}
func (p commitLogBootstrapperProvider) String() string {
return CommitLogBootstrapperName
}
type commitLogBootstrapper struct {
bootstrap.Bootstrapper
}
func (*commitLogBootstrapper) String() string {
return CommitLogBootstrapperName
}