micro/store/context.go

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package store
import (
"context"
)
type storeKey struct{}
// FromContext get store from context
func FromContext(ctx context.Context) (Store, bool) {
if ctx == nil {
return nil, false
}
c, ok := ctx.Value(storeKey{}).(Store)
return c, ok
}
// NewContext put store in context
func NewContext(ctx context.Context, c Store) context.Context {
if ctx == nil {
ctx = context.Background()
}
return context.WithValue(ctx, storeKey{}, c)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetReadOption returns a function to setup a context with given value
func SetReadOption(k, v interface{}) ReadOption {
return func(o *ReadOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetWriteOption returns a function to setup a context with given value
func SetWriteOption(k, v interface{}) WriteOption {
return func(o *WriteOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetListOption returns a function to setup a context with given value
func SetListOption(k, v interface{}) ListOption {
return func(o *ListOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetDeleteOption returns a function to setup a context with given value
func SetDeleteOption(k, v interface{}) DeleteOption {
return func(o *DeleteOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetExistsOption returns a function to setup a context with given value
func SetExistsOption(k, v interface{}) ExistsOption {
return func(o *ExistsOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}