service

Documentation

Overview

Package service contains logics around working with service config.

Index

• func Update(ctx context.Context) error
• type Finder
  • func NewFinder(ctx context.Context) (*Finder, error)
  • func (m *Finder) FindInterestedServices(ctx context.Context, cs config.Set, filePath string) []*model.Service
  • func (m *Finder) RefreshPeriodically(ctx context.Context)

Functions

func Update

func Update(ctx context.Context) error

Update updates the `Service` entities for all registered services.

Also deletes the entities for un-registered services.

Types

type Finder

type Finder struct {
	// contains filtered or unexported fields
}

Finder provides fast look up for services interested in the provided config.

It loads `Service` entity for all registered services and pre-compute the ConfigPattern to in-memory data structures that promotes faster matching performance.

See ConfigPattern syntax at https://pkg.go.dev/go.chromium.org/luci/common/proto/config#ConfigPattern

It can be used as an one-off look up. However, to unlock its full ability, the caller should use a singleton and call `RefreshPeriodically` in the background to keep the singleton's pre-computed patterns up-to-date with.

func NewFinder

func NewFinder(ctx context.Context) (*Finder, error)

NewFinder instantiate a new Finder that are ready for look up.

func (*Finder) FindInterestedServices

func (m *Finder) FindInterestedServices(ctx context.Context, cs config.Set, filePath string) []*model.Service

FindInterestedServices look up for services interested in the given config.

Look-up is performed in memory.

func (*Finder) RefreshPeriodically

func (m *Finder) RefreshPeriodically(ctx context.Context)

RefreshPeriodically refreshes the finder with the latest registered services information every 1 minute until context is cancelled.

Log the error if refresh has failed.