Golang httpcache.NewMemoryCacheTransport函數代碼示例

func MakeClient(token string) *github.Client {
	var client *http.Client
	var transport http.RoundTripper
	if *useMemoryCache {
		transport = httpcache.NewMemoryCacheTransport()
	} else {
		transport = http.DefaultTransport
	}
	if len(token) > 0 {
		rateLimitTransport := &RateLimitRoundTripper{
			delegate: transport,
			// Global limit is 5000 Q/Hour, try to only use 1800 to make room for other apps
			throttle: util.NewTokenBucketRateLimiter(0.5, 10),
		}
		ts := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: token})
		client = &http.Client{
			Transport: &oauth2.Transport{
				Base:   rateLimitTransport,
				Source: oauth2.ReuseTokenSource(nil, ts),
			},
		}
	} else {
		rateLimitTransport := &RateLimitRoundTripper{
			delegate: transport,
			throttle: util.NewTokenBucketRateLimiter(0.01, 10),
		}
		client = &http.Client{
			Transport: rateLimitTransport,
		}
	}
	return github.NewClient(client)
}

// PreExecute will initialize the Config. It MUST be run before the config
// may be used to get information from Github
func (config *Config) PreExecute() error {
	if len(config.Org) == 0 {
		glog.Fatalf("--organization is required.")
	}
	if len(config.Project) == 0 {
		glog.Fatalf("--project is required.")
	}

	token := config.Token
	if len(token) == 0 && len(config.TokenFile) != 0 {
		data, err := ioutil.ReadFile(config.TokenFile)
		if err != nil {
			glog.Fatalf("error reading token file: %v", err)
		}
		token = strings.TrimSpace(string(data))
	}

	// We need to get our Transport/RoundTripper in order based on arguments
	//    oauth2 Transport // if we have an auth token
	//    zeroCacheRoundTripper // if we are using the cache want faster timeouts
	//    webCacheRoundTripper // if we are using the cache
	//    callLimitRoundTripper ** always
	//    [http.DefaultTransport] ** always implicit

	var transport http.RoundTripper

	callLimitTransport := &callLimitRoundTripper{
		remaining: tokenLimit + 500, // put in 500 so we at least have a couple to check our real limits
		resetTime: time.Now().Add(1 * time.Minute),
	}
	config.apiLimit = callLimitTransport
	transport = callLimitTransport

	if config.useMemoryCache {
		t := httpcache.NewMemoryCacheTransport()
		t.Transport = transport

		zeroCacheTransport := &zeroCacheRoundTripper{
			delegate: t,
		}

		transport = zeroCacheTransport
	}

	if len(token) > 0 {
		ts := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: token})
		transport = &oauth2.Transport{
			Base:   transport,
			Source: oauth2.ReuseTokenSource(nil, ts),
		}
	}

	client := &http.Client{
		Transport: transport,
	}
	config.client = github.NewClient(client)
	config.ResetAPICount()
	return nil
}

// PreExecute will initialize the GithubConfig. It MUST be run before the config
// may be used to get information from Github
func (config *GithubConfig) PreExecute() error {
	if len(config.Org) == 0 {
		glog.Fatalf("--organization is required.")
	}
	if len(config.Project) == 0 {
		glog.Fatalf("--project is required.")
	}

	token := config.Token
	if len(token) == 0 && len(config.TokenFile) != 0 {
		data, err := ioutil.ReadFile(config.TokenFile)
		if err != nil {
			glog.Fatalf("error reading token file: %v", err)
		}
		token = string(data)
	}

	transport := http.DefaultTransport
	if config.useMemoryCache {
		transport = httpcache.NewMemoryCacheTransport()
	}

	// convert from queries per hour to queries per second
	config.RateLimit = config.RateLimit / 3600
	// ignore the configured rate limit if you don't have a token.
	// only get 60 requests per hour!
	if len(token) == 0 {
		glog.Warningf("Ignoring --rate-limit because no token data available")
		config.RateLimit = 0.01
		config.RateLimitBurst = 10
	}
	rateLimitTransport := &rateLimitRoundTripper{
		delegate: transport,
		throttle: util.NewTokenBucketRateLimiter(config.RateLimit, config.RateLimitBurst),
	}

	client := &http.Client{
		Transport: rateLimitTransport,
	}
	if len(token) > 0 {
		ts := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: token})
		client = &http.Client{
			Transport: &oauth2.Transport{
				Base:   rateLimitTransport,
				Source: oauth2.ReuseTokenSource(nil, ts),
			},
		}
	}
	config.client = github.NewClient(client)
	config.analytics.lastAPIReset = time.Now()
	return nil
}

func (config *GithubConfig) PreExecute() error {
	if len(config.Org) == 0 {
		glog.Fatalf("--organization is required.")
	}
	if len(config.Project) == 0 {
		glog.Fatalf("--project is required.")
	}

	token := config.Token
	if len(token) == 0 && len(config.TokenFile) != 0 {
		data, err := ioutil.ReadFile(config.TokenFile)
		if err != nil {
			glog.Fatalf("error reading token file: %v", err)
		}
		token = string(data)
	}

	var client *http.Client
	var transport http.RoundTripper
	if config.useMemoryCache {
		transport = httpcache.NewMemoryCacheTransport()
	} else {
		transport = http.DefaultTransport
	}
	if len(token) > 0 {
		rateLimitTransport := &RateLimitRoundTripper{
			delegate: transport,
			// Global limit is 5000 Q/Hour, try to only use 1800 to make room for other apps
			throttle: util.NewTokenBucketRateLimiter(0.5, 10),
		}
		ts := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: token})
		client = &http.Client{
			Transport: &oauth2.Transport{
				Base:   rateLimitTransport,
				Source: oauth2.ReuseTokenSource(nil, ts),
			},
		}
	} else {
		rateLimitTransport := &RateLimitRoundTripper{
			delegate: transport,
			throttle: util.NewTokenBucketRateLimiter(0.01, 10),
		}
		client = &http.Client{
			Transport: rateLimitTransport,
		}
	}
	config.client = github.NewClient(client)
	return nil
}

func CacheInit() {
	t := httpcache.NewMemoryCacheTransport()
	client = http.Client{Transport: t}
}