service/frontend/wrappers/ratelimited/ratelimit.go

// The MIT License (MIT)

// Copyright (c) 2017-2020 Uber Technologies Inc.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package ratelimited

import (
	"github.com/uber/cadence/common/quotas"
)

// ratelimitType differentiates between the three categories of ratelimiters
type ratelimitType int

const (
	ratelimitTypeUser ratelimitType = iota + 1
	ratelimitTypeWorker
	ratelimitTypeVisibility
	ratelimitTypeAsync
)

func (h *apiHandler) allowDomain(requestType ratelimitType, domain string) bool {
	switch requestType {
	case ratelimitTypeUser:
		return h.userRateLimiter.Allow(quotas.Info{Domain: domain})
	case ratelimitTypeWorker:
		return h.workerRateLimiter.Allow(quotas.Info{Domain: domain})
	case ratelimitTypeVisibility:
		return h.visibilityRateLimiter.Allow(quotas.Info{Domain: domain})
	case ratelimitTypeAsync:
		return h.asyncRateLimiter.Allow(quotas.Info{Domain: domain})
	default:
		panic("coding error, unrecognized request ratelimit type value")
	}
}