tasks/service/worker/fx.go

// The MIT License
//
// Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
//
// Copyright (c) 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 worker

import (
	"context"

	"go.uber.org/fx"

	"go.temporal.io/server/common"
	"go.temporal.io/server/common/config"
	"go.temporal.io/server/common/dynamicconfig"
	"go.temporal.io/server/common/log"
	"go.temporal.io/server/common/metrics"
	"go.temporal.io/server/common/persistence/visibility"
	"go.temporal.io/server/common/persistence/visibility/manager"
	esclient "go.temporal.io/server/common/persistence/visibility/store/elasticsearch/client"
	"go.temporal.io/server/common/resolver"
	"go.temporal.io/server/common/resource"
	"go.temporal.io/server/common/searchattribute"
	"go.temporal.io/server/service"
	"go.temporal.io/server/service/worker/addsearchattributes"
	"go.temporal.io/server/service/worker/batcher"
	"go.temporal.io/server/service/worker/deletenamespace"
	"go.temporal.io/server/service/worker/migration"
	"go.temporal.io/server/service/worker/scheduler"
)

var Module = fx.Options(
	migration.Module,
	addsearchattributes.Module,
	resource.Module,
	deletenamespace.Module,
	scheduler.Module,
	batcher.Module,
	fx.Provide(VisibilityManagerProvider),
	fx.Provide(dynamicconfig.NewCollection),
	fx.Provide(ThrottledLoggerRpsFnProvider),
	fx.Provide(ConfigProvider),
	fx.Provide(PersistenceRateLimitingParamsProvider),
	fx.Provide(NewService),
	fx.Provide(NewWorkerManager),
	fx.Provide(NewPerNamespaceWorkerManager),
	fx.Invoke(ServiceLifetimeHooks),
)

func ThrottledLoggerRpsFnProvider(serviceConfig *Config) resource.ThrottledLoggerRpsFn {
	return func() float64 { return float64(serviceConfig.ThrottledLogRPS()) }
}

func PersistenceRateLimitingParamsProvider(
	serviceConfig *Config,
) service.PersistenceRateLimitingParams {
	return service.NewPersistenceRateLimitingParams(
		serviceConfig.PersistenceMaxQPS,
		serviceConfig.PersistenceGlobalMaxQPS,
		serviceConfig.PersistenceNamespaceMaxQPS,
		serviceConfig.PersistencePerShardNamespaceMaxQPS,
		serviceConfig.EnablePersistencePriorityRateLimiting,
		serviceConfig.PersistenceDynamicRateLimitingParams,
	)
}

func ConfigProvider(
	dc *dynamicconfig.Collection,
	persistenceConfig *config.Persistence,
) *Config {
	return NewConfig(
		dc,
		persistenceConfig,
		persistenceConfig.StandardVisibilityConfigExist(),
		persistenceConfig.AdvancedVisibilityConfigExist(),
	)
}

func VisibilityManagerProvider(
	logger log.Logger,
	metricsHandler metrics.Handler,
	persistenceConfig *config.Persistence,
	serviceConfig *Config,
	esClient esclient.Client,
	persistenceServiceResolver resolver.ServiceResolver,
	searchAttributesMapperProvider searchattribute.MapperProvider,
	saProvider searchattribute.Provider,
) (manager.VisibilityManager, error) {
	return visibility.NewManager(
		*persistenceConfig,
		persistenceServiceResolver,
		esClient,
		nil, // worker visibility never write
		saProvider,
		searchAttributesMapperProvider,
		serviceConfig.VisibilityPersistenceMaxReadQPS,
		serviceConfig.VisibilityPersistenceMaxWriteQPS,
		serviceConfig.EnableReadFromSecondaryVisibility,
		dynamicconfig.GetStringPropertyFn(visibility.SecondaryVisibilityWritingModeOff), // worker visibility never write
		serviceConfig.VisibilityDisableOrderByClause,
		serviceConfig.VisibilityEnableManualPagination,
		metricsHandler,
		logger,
	)
}

func ServiceLifetimeHooks(
	lc fx.Lifecycle,
	svcStoppedCh chan struct{},
	svc *Service,
) {
	lc.Append(
		fx.Hook{
			OnStart: func(context.Context) error {
				go func(svc common.Daemon, svcStoppedCh chan<- struct{}) {
					// Start is blocked until Stop() is called.
					svc.Start()
					close(svcStoppedCh)
				}(svc, svcStoppedCh)

				return nil
			},
			OnStop: func(ctx context.Context) error {
				svc.Stop()
				return nil
			},
		},
	)
}