func (p *proxy) lookup(request *http.Request) *route.Pool {
uri := route.Uri(hostWithoutPort(request))
// Choose backend using host alone
return p.registry.Lookup(uri)
}
func (r *RouteRegistry) GenerateUriMap() (map[route.Uri]*route.Pool, bool) {
byUriTmp = make(map[route.Uri]*route.Pool)
rc := RedisConnPool.Get()
defer rc.Close()
uriList, err := redis.Strings(rc.Do("KEYS", "*"))
if err != nil {
r.logger.Error(err.Error())
return nil, false
}
for _, uriString := range uriList {
uriType := route.Uri(strings.Split(uriString, "/")[1])
if uriType == "rs" {
uri := route.Uri(strings.Split(uriString, "/")[2])
uri = uri.ToLower()
pool, found := byUriTmp[uri]
if !found {
pool = route.NewPool(r.reloadUriInterval / 5)
byUriTmp[uri] = pool
}
addresslist, err := redis.Strings(rc.Do("LRANGE", uriString, "0", "-1"))
if err != nil {
r.logger.Error(err.Error())
return nil, false
}
for _, address := range addresslist {
host := strings.Split(address, ":")[0]
p, _ := strconv.Atoi(strings.Split(address, ":")[1])
port := uint16(p)
endpoint := route.NewEndpoint(host, port, nil)
pool.Put(endpoint)
}
}
}
for _, uriString := range uriList {
uriType := route.Uri(strings.Split(uriString, "/")[1])
if uriType == "cname" {
cname := route.Uri(strings.Split(uriString, "/")[2])
cname = cname.ToLower()
_, found := byUriTmp[cname]
if !found {
u, err := redis.String(rc.Do("GET", uriString))
if err != nil {
r.logger.Error(err.Error())
return nil, false
}
uri := route.Uri(strings.Split(u, "/")[2])
uri = uri.ToLower()
pool, found := byUriTmp[uri]
if !found {
r.logger.Warnf("cname %s points to uri %s, but uri %s do not have rs", cname, uri, uri)
} else {
byUriTmp[cname] = pool
}
} else {
r.logger.Warnf("cname %s has rs", cname)
}
}
}
return byUriTmp, true
}