public async Task <AppRouter> Get()
{
if (string.IsNullOrEmpty(appId))
{
throw new ArgumentNullException(nameof(appId));
}
if (currentState != null && !currentState.IsExpired)
{
return(currentState);
}
await locker.WaitAsync();
try {
if (currentState == null)
{
try {
currentState = await QueryAsync();
} catch (Exception) {
currentState = AppRouter.GetFallbackServers(appId);
}
}
return(currentState);
} finally {
locker.Release();
}
}
async Task <AppRouter> QueryAsync()
{
HttpClient client = null;
HttpRequestMessage request = null;
HttpResponseMessage response = null;
try {
string url = string.Format("https://app-router.com/2/route?appId={0}", appId);
client = new HttpClient();
request = new HttpRequestMessage {
RequestUri = new Uri(url),
Method = HttpMethod.Get
};
HttpUtils.PrintRequest(client, request);
response = await client.SendAsync(request);
string content = await response.Content.ReadAsStringAsync();
HttpUtils.PrintResponse(response, content);
AppRouter state = JsonConvert.DeserializeObject <AppRouter>(content);
state.Source = "router";
return(state);
} finally {
if (client != null)
{
client.Dispose();
}
if (request != null)
{
request.Dispose();
}
if (response != null)
{
response.Dispose();
}
}
}
public AppRouterController(string appId, string server)
{
if (!IsInternationalApp(appId) && string.IsNullOrEmpty(server))
{
// 国内 App 必须设置域名
throw new ArgumentException("You must init with your domain.");
}
if (!string.IsNullOrEmpty(server))
{
currentState = new AppRouter {
ApiServer = server,
EngineServer = server,
PushServer = server,
RTMServer = server,
StatsServer = server,
PlayServer = server,
TTL = -1
};
}
this.appId = appId;
}
public void Clear()
{
currentState = null;
}
