Exemple #1
0
func initHandlers(s *Session) {
	// Add the Validate parameter handler if it is not disabled.
	s.Handlers.Validate.Remove(corehandlers.ValidateParametersHandler)
	if !aws.BoolValue(s.Config.DisableParamValidation) {
		s.Handlers.Validate.PushBackNamed(corehandlers.ValidateParametersHandler)
	}
}
Exemple #2
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// Initialize initializes the service.
func (s *Service) Initialize() {
	if s.Config == nil {
		s.Config = &aws.Config{}
	}
	if s.Config.HTTPClient == nil {
		s.Config.HTTPClient = http.DefaultClient
	}
	if s.Config.SleepDelay == nil {
		s.Config.SleepDelay = time.Sleep
	}

	s.Retryer = DefaultRetryer{s}
	s.DefaultMaxRetries = 3
	s.Handlers.Validate.PushBackNamed(corehandlers.ValidateEndpointHandler)
	s.Handlers.Build.PushBackNamed(corehandlers.UserAgentHandler)
	s.Handlers.Sign.PushBackNamed(corehandlers.BuildContentLengthHandler)
	s.Handlers.Send.PushBackNamed(corehandlers.SendHandler)
	s.Handlers.AfterRetry.PushBackNamed(corehandlers.AfterRetryHandler)
	s.Handlers.ValidateResponse.PushBackNamed(corehandlers.ValidateResponseHandler)
	if !aws.BoolValue(s.Config.DisableParamValidation) {
		s.Handlers.Validate.PushBackNamed(corehandlers.ValidateParametersHandler)
	}
	s.AddDebugHandlers()
	s.buildEndpoint()
}
Exemple #3
0
// ClientConfig satisfies the client.ConfigProvider interface and is used to
// configure the service client instances. Passing the Session to the service
// client's constructor (New) will use this method to configure the client.
//
// Example:
//     sess := session.New()
//     s3.New(sess)
func (s *Session) ClientConfig(serviceName string, cfgs ...*aws.Config) client.Config {
	s = s.Copy(cfgs...)
	endpoint, signingRegion := endpoints.NormalizeEndpoint(
		aws.StringValue(s.Config.Endpoint), serviceName,
		aws.StringValue(s.Config.Region), aws.BoolValue(s.Config.DisableSSL))

	return client.Config{
		Config:        s.Config,
		Handlers:      s.Handlers,
		Endpoint:      endpoint,
		SigningRegion: signingRegion,
	}
}
Exemple #4
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// buildEndpoint builds the endpoint values the service will use to make requests with.
func (s *Service) buildEndpoint() {
	if aws.StringValue(s.Config.Endpoint) != "" {
		s.Endpoint = *s.Config.Endpoint
	} else if s.Endpoint == "" {
		s.Endpoint, s.SigningRegion =
			endpoints.EndpointForRegion(s.ServiceName, aws.StringValue(s.Config.Region))
	}

	if s.Endpoint != "" && !schemeRE.MatchString(s.Endpoint) {
		scheme := "https"
		if aws.BoolValue(s.Config.DisableSSL) {
			scheme = "http"
		}
		s.Endpoint = scheme + "://" + s.Endpoint
	}
}
// nextPageTokens returns the tokens to use when asking for the next page of
// data.
func (r *Request) nextPageTokens() []interface{} {
	if r.Operation.Paginator == nil {
		return nil
	}

	if r.Operation.TruncationToken != "" {
		tr, _ := awsutil.ValuesAtPath(r.Data, r.Operation.TruncationToken)
		if len(tr) == 0 {
			return nil
		}

		switch v := tr[0].(type) {
		case *bool:
			if !aws.BoolValue(v) {
				return nil
			}
		case bool:
			if v == false {
				return nil
			}
		}
	}

	tokens := []interface{}{}
	tokenAdded := false
	for _, outToken := range r.Operation.OutputTokens {
		v, _ := awsutil.ValuesAtPath(r.Data, outToken)
		if len(v) > 0 {
			tokens = append(tokens, v[0])
			tokenAdded = true
		} else {
			tokens = append(tokens, nil)
		}
	}
	if !tokenAdded {
		return nil
	}

	return tokens
}
Exemple #6
0
// WillRetry returns if the request's can be retried.
func (r *Request) WillRetry() bool {
	return r.Error != nil && aws.BoolValue(r.Retryable) && r.RetryCount < r.MaxRetries()
}
Exemple #7
0
// Send will send the request returning error if errors are encountered.
//
// Send will sign the request prior to sending. All Send Handlers will
// be executed in the order they were set.
func (r *Request) Send() error {
	for {
		r.Sign()
		if r.Error != nil {
			return r.Error
		}

		if aws.BoolValue(r.Retryable) {
			if r.Service.Config.LogLevel.Matches(aws.LogDebugWithRequestRetries) {
				r.Service.Config.Logger.Log(fmt.Sprintf("DEBUG: Retrying Request %s/%s, attempt %d",
					r.Service.ServiceName, r.Operation.Name, r.RetryCount))
			}

			// Re-seek the body back to the original point in for a retry so that
			// send will send the body's contents again in the upcoming request.
			r.Body.Seek(r.BodyStart, 0)
			r.HTTPRequest.Body = ioutil.NopCloser(r.Body)
		}
		r.Retryable = nil

		r.Handlers.Send.Run(r)
		if r.Error != nil {
			err := r.Error
			r.Handlers.Retry.Run(r)
			r.Handlers.AfterRetry.Run(r)
			if r.Error != nil {
				debugLogReqError(r, "Send Request", false, r.Error)
				return r.Error
			}
			debugLogReqError(r, "Send Request", true, err)
			continue
		}

		r.Handlers.UnmarshalMeta.Run(r)
		r.Handlers.ValidateResponse.Run(r)
		if r.Error != nil {
			err := r.Error
			r.Handlers.UnmarshalError.Run(r)
			r.Handlers.Retry.Run(r)
			r.Handlers.AfterRetry.Run(r)
			if r.Error != nil {
				debugLogReqError(r, "Validate Response", false, r.Error)
				return r.Error
			}
			debugLogReqError(r, "Validate Response", true, err)
			continue
		}

		r.Handlers.Unmarshal.Run(r)
		if r.Error != nil {
			err := r.Error
			r.Handlers.Retry.Run(r)
			r.Handlers.AfterRetry.Run(r)
			if r.Error != nil {
				debugLogReqError(r, "Unmarshal Response", false, r.Error)
				return r.Error
			}
			debugLogReqError(r, "Unmarshal Response", true, err)
			continue
		}

		break
	}

	return nil
}