-
-
Notifications
You must be signed in to change notification settings - Fork 3.9k
/
pipe.go
100 lines (79 loc) · 1.84 KB
/
pipe.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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
package mongo
import (
"time"
"github.com/globalsign/mgo"
"github.com/zeromicro/go-zero/core/breaker"
)
type (
// Pipe interface represents a mongo pipe.
Pipe interface {
All(result interface{}) error
AllowDiskUse() Pipe
Batch(n int) Pipe
Collation(collation *mgo.Collation) Pipe
Explain(result interface{}) error
Iter() Iter
One(result interface{}) error
SetMaxTime(d time.Duration) Pipe
}
promisedPipe struct {
*mgo.Pipe
promise keepablePromise
}
rejectedPipe struct{}
)
func (p promisedPipe) All(result interface{}) error {
return p.promise.keep(p.Pipe.All(result))
}
func (p promisedPipe) AllowDiskUse() Pipe {
p.Pipe.AllowDiskUse()
return p
}
func (p promisedPipe) Batch(n int) Pipe {
p.Pipe.Batch(n)
return p
}
func (p promisedPipe) Collation(collation *mgo.Collation) Pipe {
p.Pipe.Collation(collation)
return p
}
func (p promisedPipe) Explain(result interface{}) error {
return p.promise.keep(p.Pipe.Explain(result))
}
func (p promisedPipe) Iter() Iter {
return promisedIter{
Iter: p.Pipe.Iter(),
promise: p.promise,
}
}
func (p promisedPipe) One(result interface{}) error {
return p.promise.keep(p.Pipe.One(result))
}
func (p promisedPipe) SetMaxTime(d time.Duration) Pipe {
p.Pipe.SetMaxTime(d)
return p
}
func (p rejectedPipe) All(result interface{}) error {
return breaker.ErrServiceUnavailable
}
func (p rejectedPipe) AllowDiskUse() Pipe {
return p
}
func (p rejectedPipe) Batch(n int) Pipe {
return p
}
func (p rejectedPipe) Collation(collation *mgo.Collation) Pipe {
return p
}
func (p rejectedPipe) Explain(result interface{}) error {
return breaker.ErrServiceUnavailable
}
func (p rejectedPipe) Iter() Iter {
return rejectedIter{}
}
func (p rejectedPipe) One(result interface{}) error {
return breaker.ErrServiceUnavailable
}
func (p rejectedPipe) SetMaxTime(d time.Duration) Pipe {
return p
}