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package server
import "github.com/miekg/coredns/middleware"
// zone represents a DNS zone. While a Server
// is what actually binds to the address, a user may want to serve
// multiple zones on a single address, and this is what a
// zone allows us to do.
type zone struct {
config Config
stack middleware.Handler
}
// buildStack builds the server's middleware stack based
// on its config. This method should be called last before
// ListenAndServe begins.
func (z *zone) buildStack() error {
z.compile(z.config.Middleware)
return nil
}
// compile is an elegant alternative to nesting middleware function
// calls like handler1(handler2(handler3(finalHandler))).
func (z *zone) compile(layers []middleware.Middleware) {
for i := len(layers) - 1; i >= 0; i-- {
z.stack = layers[i](z.stack)
}
}
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