micro/codec/options.go

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package codec
import (
"context"
"go.unistack.org/micro/v3/logger"
"go.unistack.org/micro/v3/meter"
"go.unistack.org/micro/v3/tracer"
)
// Option func
type Option func(*Options)
// Options contains codec options
type Options struct {
// Meter used for metrics
Meter meter.Meter
// Logger used for logging
Logger logger.Logger
// Tracer used for tracing
Tracer tracer.Tracer
// Context stores additional codec options
Context context.Context
// TagName specifies tag name in struct to control codec
TagName string
// MaxMsgSize specifies max messages size that reads by codec
MaxMsgSize int
}
// MaxMsgSize sets the max message size
func MaxMsgSize(n int) Option {
return func(o *Options) {
o.MaxMsgSize = n
}
}
// TagName sets the codec tag name in struct
func TagName(n string) Option {
return func(o *Options) {
o.TagName = n
}
}
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// Meter sets the meter
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// NewOptions returns new options
func NewOptions(opts ...Option) Options {
options := Options{
Context: context.Background(),
Logger: logger.DefaultLogger,
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
MaxMsgSize: DefaultMaxMsgSize,
TagName: DefaultTagName,
}
for _, o := range opts {
o(&options)
}
return options
}