99 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			99 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Package proxy is a transparent proxy built on the micro/server
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package proxy
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import (
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	"go.unistack.org/micro/v3/client"
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	"go.unistack.org/micro/v3/logger"
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	"go.unistack.org/micro/v3/meter"
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	"go.unistack.org/micro/v3/router"
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	"go.unistack.org/micro/v3/tracer"
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)
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// Options for proxy
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type Options struct {
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	// Tracer used for tracing
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	Tracer tracer.Tracer
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	// Client for communication
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	Client client.Client
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	// Router for routing
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	Router router.Router
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	// Logger used for logging
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	Logger logger.Logger
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	// Meter used for metrics
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	Meter meter.Meter
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	// Links holds the communication links
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	Links map[string]client.Client
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	// Endpoint holds the destination address
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	Endpoint string
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}
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// Option func signature
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type Option func(o *Options)
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// NewOptions returns new options struct that filled by opts
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func NewOptions(opts ...Option) Options {
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	options := Options{
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		Logger: logger.DefaultLogger,
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		Meter:  meter.DefaultMeter,
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		Tracer: tracer.DefaultTracer,
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	}
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	for _, o := range opts {
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		o(&options)
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	}
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	return options
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}
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// WithEndpoint sets a proxy endpoint
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func WithEndpoint(e string) Option {
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	return func(o *Options) {
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		o.Endpoint = e
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	}
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}
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// WithClient sets the client
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func WithClient(c client.Client) Option {
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	return func(o *Options) {
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		o.Client = c
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	}
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}
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// WithRouter specifies the router to use
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func WithRouter(r router.Router) Option {
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	return func(o *Options) {
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		o.Router = r
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	}
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}
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// WithLogger specifies the logger to use
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func WithLogger(l logger.Logger) Option {
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	return func(o *Options) {
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		o.Logger = l
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	}
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}
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// WithMeter specifies the meter to use
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func WithMeter(m meter.Meter) Option {
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	return func(o *Options) {
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		o.Meter = m
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	}
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}
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// WithLink sets a link for outbound requests
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func WithLink(name string, c client.Client) Option {
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	return func(o *Options) {
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		if o.Links == nil {
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			o.Links = make(map[string]client.Client)
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		}
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		o.Links[name] = c
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	}
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}
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// Tracer to be used for tracing
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func Tracer(t tracer.Tracer) Option {
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	return func(o *Options) {
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		o.Tracer = t
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	}
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}
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