33 lines
		
	
	
		
			730 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
		
			730 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package logger
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import "context"
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type loggerKey struct{}
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// FromContext returns logger from passed context
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func FromContext(ctx context.Context) (Logger, bool) {
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	if ctx == nil {
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		return nil, false
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	}
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	l, ok := ctx.Value(loggerKey{}).(Logger)
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	return l, ok
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}
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// NewContext stores logger into passed context
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func NewContext(ctx context.Context, l Logger) context.Context {
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	if ctx == nil {
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		ctx = context.Background()
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	}
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	return context.WithValue(ctx, loggerKey{}, l)
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}
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// SetOption returns a function to setup a context with given value
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func SetOption(k, v interface{}) Option {
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	return func(o *Options) {
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		if o.Context == nil {
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			o.Context = context.Background()
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		}
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		o.Context = context.WithValue(o.Context, k, v)
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	}
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}
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