package config import ( "context" "time" "go.unistack.org/micro/v4/codec" "go.unistack.org/micro/v4/logger" "go.unistack.org/micro/v4/meter" "go.unistack.org/micro/v4/options" "go.unistack.org/micro/v4/tracer" ) // Options hold the config options type Options struct { // Struct holds the destination config struct Struct interface{} // Codec that used for load/save Codec codec.Codec // Tracer that will be used Tracer tracer.Tracer // Meter that will be used Meter meter.Meter // Logger that will be used Logger logger.Logger // Context used for external options Context context.Context // Name of the config Name string // StructTag name StructTag string // BeforeSave contains slice of funcs that runs before Save BeforeSave []func(context.Context, Config) error // AfterSave contains slice of funcs that runs after Save AfterSave []func(context.Context, Config) error // BeforeLoad contains slice of funcs that runs before Load BeforeLoad []func(context.Context, Config) error // AfterLoad contains slice of funcs that runs after Load AfterLoad []func(context.Context, Config) error // BeforeInit contains slice of funcs that runs before Init BeforeInit []func(context.Context, Config) error // AfterInit contains slice of funcs that runs after Init AfterInit []func(context.Context, Config) error // AllowFail flag to allow fail in config source AllowFail bool // SkipLoad runs only if condition returns true SkipLoad func(context.Context, Config) bool // SkipSave runs only if condition returns true SkipSave func(context.Context, Config) bool } // NewOptions new options struct with filed values func NewOptions(opts ...options.Option) Options { options := Options{ Logger: logger.DefaultLogger, Meter: meter.DefaultMeter, Tracer: tracer.DefaultTracer, Context: context.Background(), } for _, o := range opts { o(&options) } return options } // LoadOptions struct type LoadOptions struct { Struct interface{} Context context.Context Override bool Append bool } // NewLoadOptions create LoadOptions struct with provided opts func NewLoadOptions(opts ...options.Option) LoadOptions { options := LoadOptions{} for _, o := range opts { o(&options) } return options } // LoadOverride override values when load func LoadOverride(b bool) options.Option { return func(src interface{}) error { return options.Set(src, b, ".Override") } } // LoadAppend override values when load func LoadAppend(b bool) options.Option { return func(src interface{}) error { return options.Set(src, b, ".Append") } } // SaveOptions struct type SaveOptions struct { Struct interface{} Context context.Context } // NewSaveOptions fill SaveOptions struct func NewSaveOptions(opts ...options.Option) SaveOptions { options := SaveOptions{} for _, o := range opts { o(&options) } return options } // AllowFail allows config source to fail func AllowFail(b bool) options.Option { return func(src interface{}) error { return options.Set(src, b, ".AllowFail") } } // BeforeInit run funcs before config Init func BeforeInit(fn ...func(context.Context, Config) error) options.Option { return func(src interface{}) error { return options.Set(src, fn, ".BeforeInit") } } // AfterInit run funcs after config Init func AfterInit(fn ...func(context.Context, Config) error) options.Option { return func(src interface{}) error { return options.Set(src, fn, ".AfterInit") } } // BeforeLoad run funcs before config load func BeforeLoad(fn ...func(context.Context, Config) error) options.Option { return func(src interface{}) error { return options.Set(src, fn, ".BeforeLoad") } } // AfterLoad run funcs after config load func AfterLoad(fn ...func(context.Context, Config) error) options.Option { return func(src interface{}) error { return options.Set(src, fn, ".AfterLoad") } } // BeforeSave run funcs before save func BeforeSave(fn ...func(context.Context, Config) error) options.Option { return func(src interface{}) error { return options.Set(src, fn, ".BeforeSave") } } // AfterSave run fncs after save func AfterSave(fn ...func(context.Context, Config) error) options.Option { return func(src interface{}) error { return options.Set(src, fn, ".AfterSave") } } // Struct used as config func Struct(v interface{}) options.Option { return func(src interface{}) error { return options.Set(src, v, ".Struct") } } // StructTag sets the struct tag that used for filling func StructTag(name string) options.Option { return func(src interface{}) error { return options.Set(src, name, ".StructTag") } } // WatchOptions struuct type WatchOptions struct { // Context used by non default options Context context.Context // Struct for filling Struct interface{} // MinInterval specifies the min time.Duration interval for poll changes MinInterval time.Duration // MaxInterval specifies the max time.Duration interval for poll changes MaxInterval time.Duration // Coalesce multiple events to one Coalesce bool } // NewWatchOptions create WatchOptions struct with provided opts func NewWatchOptions(opts ...options.Option) WatchOptions { options := WatchOptions{ Context: context.Background(), MinInterval: DefaultWatcherMinInterval, MaxInterval: DefaultWatcherMaxInterval, } for _, o := range opts { o(&options) } return options } // Coalesce controls watch event combining func WatchCoalesce(b bool) options.Option { return func(src interface{}) error { return options.Set(src, b, ".Coalesce") } } // WatchInterval specifies min and max time.Duration for pulling changes func WatchInterval(min, max time.Duration) options.Option { return func(src interface{}) error { var err error if err = options.Set(src, min, ".MinInterval"); err == nil { err = options.Set(src, max, ".MaxInterval") } return err } }