34 lines
898 B
Go
34 lines
898 B
Go
package flog
|
|
|
|
|
|
// NewFilteredRouter returns an initialized FilteredRouter.
|
|
//
|
|
// 'subrouter' is the sub-router that a FilteredRouter will
|
|
// re-Route a 'message' (and 'context') to, but only on the
|
|
// condition that 'filterFn' returns 'true' for the 'message'
|
|
// and 'context' passed to it.
|
|
func NewFilteredRouter(subrouter Router, filterFn func(string, map[string]interface{})bool) *FilteredRouter {
|
|
router := FilteredRouter{
|
|
subrouter:subrouter,
|
|
filterFn:filterFn,
|
|
}
|
|
|
|
return &router
|
|
}
|
|
|
|
|
|
// FilteredRouter is a Router that conditionally re-routes or discards a message (and its context).
|
|
type FilteredRouter struct {
|
|
subrouter Router
|
|
filterFn func(string, map[string]interface{})bool
|
|
}
|
|
|
|
|
|
func (router *FilteredRouter) Route(message string, context map[string]interface{}) error {
|
|
if router.filterFn(message, context) {
|
|
return router.subrouter.Route(message, context)
|
|
}
|
|
|
|
return nil
|
|
}
|