func topicMatchFunc(msg amq.Message, binding *amq.Binding) bool {
patternCache.RLock()
defer patternCache.RUnlock()
if matcher, found := patternCache.cache[binding.Key]; found {
return matcher.MatchString(msg.RoutingKey())
} else {
pattern := strings.Replace(binding.Key, ".", `\.`, -1)
pattern = strings.Replace(pattern, "*", `[0-9A-z]+`, -1)
pattern = strings.Replace(pattern, `\.#\.`, `(\.|\.[0-9A-z\.]*\.)`, -1)
pattern = strings.Replace(pattern, `\.#`, `(\.[0-9A-z\.]*)?`, -1)
pattern = strings.Replace(pattern, `#\.`, `([0-9A-z\.]*\.)?`, -1)
pattern = strings.Replace(pattern, "#", `[0-9A-z\.]*`, -1)
matcher := regexp.MustCompile(fmt.Sprintf("^%s$", pattern))
go func() {
patternCache.Lock()
defer patternCache.Unlock()
patternCache.cache[binding.Key] = matcher
}()
return matcher.MatchString(msg.RoutingKey())
}
}
func directMatchFunc(msg amq.Message, binding *amq.Binding) bool {
return msg.RoutingKey() == binding.Key
}