micro/client/selector/options.go
ben-toogood a8fc5590a8
client/selector: query across multiple domains (#1725)
* client/selector: query across multiple domains

* client/selector: check for nil services

* config/cmd: fix merge bug
2020-06-25 15:40:23 +01:00

71 lines
1.4 KiB
Go

package selector
import (
"context"
"github.com/micro/go-micro/v2/registry"
)
type Options struct {
Registry registry.Registry
Strategy Strategy
// Domain to lookup services from within the registry
Domain string
// Other options for implementations of the interface
// can be stored in a context
Context context.Context
}
type SelectOptions struct {
Filters []Filter
Strategy Strategy
// Other options for implementations of the interface
// can be stored in a context
Context context.Context
}
// Option used to initialise the selector
type Option func(*Options)
// SelectOption used when making a select call
type SelectOption func(*SelectOptions)
// Registry sets the registry used by the selector
func Registry(r registry.Registry) Option {
return func(o *Options) {
o.Registry = r
}
}
// Domain sets the domain used by the selector
func Domain(d string) Option {
return func(o *Options) {
o.Domain = d
}
}
// SetStrategy sets the default strategy for the selector
func SetStrategy(fn Strategy) Option {
return func(o *Options) {
o.Strategy = fn
}
}
// WithFilter adds a filter function to the list of filters
// used during the Select call.
func WithFilter(fn ...Filter) SelectOption {
return func(o *SelectOptions) {
o.Filters = append(o.Filters, fn...)
}
}
// Strategy sets the selector strategy
func WithStrategy(fn Strategy) SelectOption {
return func(o *SelectOptions) {
o.Strategy = fn
}
}