-
Notifications
You must be signed in to change notification settings - Fork 133
/
options.go
141 lines (126 loc) · 4.63 KB
/
options.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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
package statsd
import (
"math"
"time"
)
var (
// DefaultNamespace is the default value for the Namespace option
DefaultNamespace = ""
// DefaultTags is the default value for the Tags option
DefaultTags = []string{}
// DefaultMaxBytesPerPayload is the default value for the MaxBytesPerPayload option
DefaultMaxBytesPerPayload = 0
// DefaultMaxMessagesPerPayload is the default value for the MaxMessagesPerPayload option
DefaultMaxMessagesPerPayload = math.MaxInt32
// DefaultBufferPoolSize is the default value for the DefaultBufferPoolSize option
DefaultBufferPoolSize = 0
// DefaultBufferFlushInterval is the default value for the BufferFlushInterval option
DefaultBufferFlushInterval = 100 * time.Millisecond
// DefaultSenderQueueSize is the default value for the DefaultSenderQueueSize option
DefaultSenderQueueSize = 0
// DefaultWriteTimeoutUDS is the default value for the WriteTimeoutUDS option
DefaultWriteTimeoutUDS = 1 * time.Millisecond
)
// Options contains the configuration options for a client.
type Options struct {
// Namespace to prepend to all metrics, events and service checks name.
Namespace string
// Tags are global tags to be applied to every metrics, events and service checks.
Tags []string
// MaxBytesPerPayload is the maximum number of bytes a single payload will contain.
// The magic value 0 will set the option to the optimal size for the transport
// protocol used when creating the client: 1432 for UDP and 8192 for UDS.
MaxBytesPerPayload int
// MaxMessagesPerPayload is the maximum number of metrics, events and/or service checks a single payload will contain.
// This option can be set to `1` to create an unbuffered client.
MaxMessagesPerPayload int
// BufferPoolSize is the size of the pool of buffers in number of buffers.
// The magic value 0 will set the option to the optimal size for the transport
// protocol used when creating the client: 2048 for UDP and 512 for UDS.
BufferPoolSize int
// BufferFlushInterval is the interval after which the current buffer will get flushed.
BufferFlushInterval time.Duration
// SenderQueueSize is the size of the sender queue in number of buffers.
// The magic value 0 will set the option to the optimal size for the transport
// protocol used when creating the client: 2048 for UDP and 512 for UDS.
SenderQueueSize int
// WriteTimeoutUDS is the timeout after which a UDS packet is dropped.
WriteTimeoutUDS time.Duration
}
func resolveOptions(options []Option) (*Options, error) {
o := &Options{
Namespace: DefaultNamespace,
Tags: DefaultTags,
MaxBytesPerPayload: DefaultMaxBytesPerPayload,
MaxMessagesPerPayload: DefaultMaxMessagesPerPayload,
BufferPoolSize: DefaultBufferPoolSize,
BufferFlushInterval: DefaultBufferFlushInterval,
SenderQueueSize: DefaultSenderQueueSize,
WriteTimeoutUDS: DefaultWriteTimeoutUDS,
}
for _, option := range options {
err := option(o)
if err != nil {
return nil, err
}
}
return o, nil
}
// Option is a client option. Can return an error if validation fails.
type Option func(*Options) error
// WithNamespace sets the Namespace option.
func WithNamespace(namespace string) Option {
return func(o *Options) error {
o.Namespace = namespace
return nil
}
}
// WithTags sets the Tags option.
func WithTags(tags []string) Option {
return func(o *Options) error {
o.Tags = tags
return nil
}
}
// WithMaxMessagesPerPayload sets the MaxMessagesPerPayload option.
func WithMaxMessagesPerPayload(maxMessagesPerPayload int) Option {
return func(o *Options) error {
o.MaxMessagesPerPayload = maxMessagesPerPayload
return nil
}
}
// WithMaxBytesPerPayload sets the MaxBytesPerPayload option.
func WithMaxBytesPerPayload(MaxBytesPerPayload int) Option {
return func(o *Options) error {
o.MaxBytesPerPayload = MaxBytesPerPayload
return nil
}
}
// WithBufferPoolSize sets the BufferPoolSize option.
func WithBufferPoolSize(bufferPoolSize int) Option {
return func(o *Options) error {
o.BufferPoolSize = bufferPoolSize
return nil
}
}
// WithBufferFlushInterval sets the BufferFlushInterval option.
func WithBufferFlushInterval(bufferFlushInterval time.Duration) Option {
return func(o *Options) error {
o.BufferFlushInterval = bufferFlushInterval
return nil
}
}
// WithSenderQueueSize sets the SenderQueueSize option.
func WithSenderQueueSize(senderQueueSize int) Option {
return func(o *Options) error {
o.SenderQueueSize = senderQueueSize
return nil
}
}
// WithWriteTimeoutUDS sets the WriteTimeoutUDS option.
func WithWriteTimeoutUDS(writeTimeoutUDS time.Duration) Option {
return func(o *Options) error {
o.WriteTimeoutUDS = writeTimeoutUDS
return nil
}
}