// findHandlerByID returns the Handler for the searchID. If not found
// or slices have an indifferent length or something is nil it will
// return the DefaultErrorHandler.
func findHandlerByID(so scope.Scope, id int64, idsIdx util.Int64Slice, handlers []ctxhttp.HandlerFunc) ctxhttp.HandlerFunc {
if len(idsIdx) != len(handlers) {
return DefaultAlternativeHandler
}
index := idsIdx.Index(id)
if index < 0 {
return DefaultAlternativeHandler
}
prospect := handlers[index]
if nil == prospect {
return DefaultAlternativeHandler
}
if PkgLog.IsInfo() {
PkgLog.Info("geoip.findHandlerByID.found", "scope", so.String(), "id", id, "idsIdx", idsIdx)
}
return prospect
}
func TestInt64SliceIndex(t *testing.T) {
is := util.Int64Slice{-29, 30, -1}
assert.EqualValues(t, 2, is.Index(-1))
assert.EqualValues(t, -1, is.Index(123))
}