64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package server
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import (
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"context"
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)
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type serverKey struct{}
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// FromContext returns Server from context
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func FromContext(ctx context.Context) (Server, bool) {
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if ctx == nil {
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return nil, false
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}
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c, ok := ctx.Value(serverKey{}).(Server)
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return c, ok
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}
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// MustContext returns Server from context
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func MustContext(ctx context.Context) Server {
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s, ok := FromContext(ctx)
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if !ok {
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panic("missing server")
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}
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return s
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}
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// NewContext stores Server to context
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func NewContext(ctx context.Context, s Server) context.Context {
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if ctx == nil {
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ctx = context.Background()
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}
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return context.WithValue(ctx, serverKey{}, s)
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}
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// SetOption returns a function to setup a context with given value
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func SetOption(k, v interface{}) Option {
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return func(o *Options) {
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if o.Context == nil {
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o.Context = context.Background()
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}
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o.Context = context.WithValue(o.Context, k, v)
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}
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}
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// SetSubscriberOption returns a function to setup a context with given value
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func SetSubscriberOption(k, v interface{}) SubscriberOption {
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return func(o *SubscriberOptions) {
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if o.Context == nil {
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o.Context = context.Background()
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}
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o.Context = context.WithValue(o.Context, k, v)
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}
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}
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// SetHandlerOption returns a function to setup a context with given value
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func SetHandlerOption(k, v interface{}) HandlerOption {
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return func(o *HandlerOptions) {
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if o.Context == nil {
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o.Context = context.Background()
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}
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o.Context = context.WithValue(o.Context, k, v)
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}
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}
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