// TODO: wanna implement trie. but regexp works well.
// retain should persist their data. though, how do we fetch it efficiently...
func (self *Momonga) RetainMatch(topic string) []*codec.PublishMessage {
var result []*codec.PublishMessage
orig := topic
// TODO: should validate illegal wildcards like /debug/#/hello
topic = strings.Replace(topic, "+", "[^/]+", -1)
topic = strings.Replace(topic, "#", ".*", -1)
reg, err := regexp.Compile(topic)
if err != nil {
fmt.Printf("Regexp Error: %s", err)
}
all := false
if string(orig[0:1]) == "#" || string(orig[0:1]) == "+" {
all = true
}
// TODO:これどうにかしたいなー・・・。とは思いつつDBからめて素敵にやるってなるとあんまりいいアイデアない
itr := self.DataStore.Iterator()
for ; itr.Valid(); itr.Next() {
k := string(itr.Key())
if all && (len(k) > 0 && k[0:1] == "$") {
// [MQTT-4.7.2-1] The Server MUST NOT match Topic Filters starting with a wildcard character (# or +)
// with Topic Names beginning with a $ character
// NOTE: Qlobber doesn't support this feature yet
continue
}
if reg.MatchString(k) {
data := itr.Value()
p, _ := codec.ParseMessage(bytes.NewReader(data), 0)
if v, ok := p.(*codec.PublishMessage); ok {
result = append(result, v)
}
}
}
return result
}
func (self *MyConnection) ParseMessage() (codec.Message, error) {
// self.Mutex.RLock()
// defer self.Mutex.RUnlock()
if self.Keepalive > 0 {
if cn, ok := self.MyConnection.(net.Conn); ok {
cn.SetReadDeadline(self.Last.Add(time.Duration(int(float64(self.Keepalive)*1.5)) * time.Second))
}
}
if self.Reader == nil {
panic("reader is null")
}
message, err := codec.ParseMessage(self.Reader, self.MaxMessageSize)
if err != nil {
self.logger.Debug(">>> Message: %s\n", err)
if v, ok := self.Events["error"].(func(error)); ok {
v(err)
}
return nil, err
}
self.logger.Debug("Read Message: [%s] %+v", message.GetTypeAsString(), message)
if v, ok := self.Events["parsed"]; ok {
if cb, ok := v.(func()); ok {
cb()
}
}
// 以下callbackを呼ぶだけのコード
switch message.GetType() {
case codec.PACKET_TYPE_PUBLISH:
p := message.(*codec.PublishMessage)
if v, ok := self.Events["publish"]; ok {
if cb, ok := v.(func(*codec.PublishMessage)); ok {
cb(p)
}
}
break
case codec.PACKET_TYPE_CONNACK:
p := message.(*codec.ConnackMessage)
if v, ok := self.Events["connack"]; ok {
if cb, ok := v.(func(uint8)); ok {
cb(p.ReturnCode)
}
}
break
case codec.PACKET_TYPE_PUBACK:
p := message.(*codec.PubackMessage)
if v, ok := self.Events["puback"]; ok {
if cb, ok := v.(func(uint16)); ok {
cb(p.PacketIdentifier)
}
}
break
case codec.PACKET_TYPE_PUBREC:
p := message.(*codec.PubrecMessage)
if v, ok := self.Events["pubrec"]; ok {
if cb, ok := v.(func(uint16)); ok {
cb(p.PacketIdentifier)
}
}
break
case codec.PACKET_TYPE_PUBREL:
// PUBRELを受けるということはReceiverとして受けるということ
p := message.(*codec.PubrelMessage)
if v, ok := self.Events["pubrel"]; ok {
if cb, ok := v.(func(uint16)); ok {
cb(p.PacketIdentifier)
}
}
break
case codec.PACKET_TYPE_PUBCOMP:
// PUBCOMPを受けるということはSenderとして受けるということ。
p := message.(*codec.PubcompMessage)
if v, ok := self.Events["pubcomp"]; ok {
if cb, ok := v.(func(uint16)); ok {
cb(p.PacketIdentifier)
}
}
break
case codec.PACKET_TYPE_PINGREQ:
if v, ok := self.Events["pingreq"]; ok {
if cb, ok := v.(func()); ok {
cb()
}
}
break
case codec.PACKET_TYPE_PINGRESP:
if v, ok := self.Events["pingresp"]; ok {
if cb, ok := v.(func()); ok {
cb()
}
}
break
case codec.PACKET_TYPE_SUBACK:
p := message.(*codec.SubackMessage)
if v, ok := self.Events["suback"]; ok {
if cb, ok := v.(func(uint16, int)); ok {
cb(p.PacketIdentifier, 0)
}
}
break
case codec.PACKET_TYPE_UNSUBACK:
p := message.(*codec.UnsubackMessage)
if v, ok := self.Events["unsuback"]; ok {
if cb, ok := v.(func(uint16)); ok {
cb(p.PacketIdentifier)
}
}
break
case codec.PACKET_TYPE_CONNECT:
p := message.(*codec.ConnectMessage)
if v, ok := self.Events["connect"]; ok {
if cb, ok := v.(func(*codec.ConnectMessage)); ok {
cb(p)
}
}
break
case codec.PACKET_TYPE_SUBSCRIBE:
p := message.(*codec.SubscribeMessage)
if v, ok := self.Events["subscribe"]; ok {
if cb, ok := v.(func(*codec.SubscribeMessage)); ok {
cb(p)
}
}
break
case codec.PACKET_TYPE_DISCONNECT:
if v, ok := self.Events["disconnect"]; ok {
if cb, ok := v.(func()); ok {
cb()
}
}
break
case codec.PACKET_TYPE_UNSUBSCRIBE:
p := message.(*codec.UnsubscribeMessage)
if v, ok := self.Events["unsubscribe"]; ok {
if cb, ok := v.(func(uint16, int, []codec.SubscribePayload)); ok {
cb(p.PacketIdentifier, 0, p.Payload)
}
}
break
default:
self.logger.Error("Unhandled message: %+v\n", message)
}
self.invalidateTimer()
self.Last = time.Now()
return message, err
}