44 lines
		
	
	
		
			954 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
		
			954 B
		
	
	
	
		
			Go
		
	
	
	
	
	
| package random // import "go.unistack.org/micro/v3/selector/random"
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| 
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| import (
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| 	"go.unistack.org/micro/v3/selector"
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| 	"go.unistack.org/micro/v3/util/rand"
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| )
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| 
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| type random struct{}
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| 
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| func (r *random) Select(routes []string, opts ...selector.SelectOption) (selector.Next, error) {
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| 	// we can't select from an empty pool of routes
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| 	if len(routes) == 0 {
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| 		return nil, selector.ErrNoneAvailable
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| 	}
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| 
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| 	// return the next func
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| 	return func() string {
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| 		// if there is only one route provided we'll select it
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| 		if len(routes) == 1 {
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| 			return routes[0]
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| 		}
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| 		var rng rand.Rand
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| 		// select a random route from the slice
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| 		return routes[rng.Intn(len(routes))]
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| 	}, nil
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| }
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| 
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| func (r *random) Record(addr string, err error) error {
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| 	return nil
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| }
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| 
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| func (r *random) Reset() error {
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| 	return nil
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| }
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| 
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| func (r *random) String() string {
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| 	return "random"
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| }
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| 
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| // NewSelector returns a random selector
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| func NewSelector(opts ...selector.Option) selector.Selector {
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| 	return &random{}
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| }
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