public Task ViewerDisconnect(IChirperViewer viewer)
{
if (viewers.IsSubscribed(viewer))
{
viewers.Unsubscribe(viewer);
}
return(TaskDone.Done);
}
public async Task <bool> Run()
{
if (UserId == 0)
{
throw new ArgumentNullException("UserId", "No user UserId provided");
}
Console.WriteLine("ChirperClient UserId={0}", UserId);
bool ok = true;
try
{
var config = ClientConfiguration.LocalhostSilo();
GrainClient.Initialize(config);
IChirperAccount account = GrainClient.GrainFactory.GetGrain <IChirperAccount>(UserId);
publisher = account;
List <ChirperMessage> chirps = await account.GetReceivedMessages(10);
// Process the most recent chirps received
foreach (ChirperMessage c in chirps)
{
this.NewChirpArrived(c);
}
if (Snapshot)
{
Console.WriteLine("--- Press any key to exit ---");
Console.ReadKey();
}
else
{
// ... and then subscribe to receive any new chirps
viewer = await GrainClient.GrainFactory.CreateObjectReference <IChirperViewer>(this);
if (!this.IsPublisher)
{
Console.WriteLine("Listening for new chirps...");
}
await account.ViewerConnect(viewer);
// Sleeps forwever, so Ctrl-C to exit
Thread.Sleep(-1);
}
}
catch (Exception exc)
{
Console.WriteLine("Error connecting Chirper client for user={0}. Exception:{1}", UserId, exc);
ok = false;
}
return(ok);
}
private async Task Unobserve()
{
if (this.viewer != null)
{
await this.account.UnsubscribeAsync(this.viewer);
this.viewer = null;
Console.WriteLine($"No longer observing [{this.account.GetPrimaryKeyString()}]");
}
}
public async Task<bool> Run()
{
if (UserId == 0) throw new ArgumentNullException("UserId", "No user UserId provided");
Console.WriteLine("ChirperClient UserId={0}", UserId);
bool ok = true;
try
{
var config = ClientConfiguration.LocalhostSilo();
GrainClient.Initialize(config);
IChirperAccount account = GrainClient.GrainFactory.GetGrain<IChirperAccount>(UserId);
publisher = account;
List<ChirperMessage> chirps = await account.GetReceivedMessages(10);
// Process the most recent chirps received
foreach (ChirperMessage c in chirps)
{
this.NewChirpArrived(c);
}
if (Snapshot)
{
Console.WriteLine("--- Press any key to exit ---");
Console.ReadKey();
}
else
{
// ... and then subscribe to receive any new chirps
viewer = await GrainClient.GrainFactory.CreateObjectReference<IChirperViewer>(this);
if (!this.IsPublisher) Console.WriteLine("Listening for new chirps...");
await account.ViewerConnect(viewer);
// Sleeps forwever, so Ctrl-C to exit
Thread.Sleep(-1);
}
}
catch (Exception exc)
{
Console.WriteLine("Error connecting Chirper client for user={0}. Exception:{1}", UserId, exc);
ok = false;
}
return ok;
}
public Task UnsubscribeAsync(IChirperViewer viewer)
{
this.viewers.Remove(viewer);
return(Task.CompletedTask);
}
public Task SubscribeAsync(IChirperViewer viewer)
{
this.viewers.Add(viewer);
return(Task.CompletedTask);
}
public static System.Threading.Tasks.Task DeleteObjectReference(IChirperViewer reference)
{
return global::Orleans.Runtime.GrainReference.DeleteObjectReference(reference);
}
public async static System.Threading.Tasks.Task<IChirperViewer> CreateObjectReference(IChirperViewer obj)
{
if (methodInvoker == null) methodInvoker = new ChirperViewerMethodInvoker();
return ChirperViewerFactory.Cast(await global::Orleans.Runtime.GrainReference.CreateObjectReference(obj, methodInvoker));
}
public Task ViewerConnect(IChirperViewer viewer)
{
viewers.Subscribe(viewer);
return(TaskDone.Done);
}
public async Task RunAsync(IClusterClient client)
{
this.ShowHelp(true);
while (true)
{
var command = Console.ReadLine();
if (command == "/help")
{
this.ShowHelp();
}
else if (command == "/quit")
{
return;
}
else if (command.StartsWith("/user "))
{
var match = Regex.Match(command, @"/user (?<username>\w{1,100})");
if (match.Success)
{
await this.Unobserve();
var username = match.Groups["username"].Value;
this.account = client.GetGrain <IChirperAccount>(username);
Console.WriteLine($"The current user is now [{username}]");
}
else
{
Console.WriteLine("Invalid username. Try again or type /help for a list of commands.");
}
}
else if (command.StartsWith("/follow "))
{
if (this.EnsureActiveAccount())
{
var match = Regex.Match(command, @"/follow (?<username>\w{1,100})");
if (match.Success)
{
var targetName = match.Groups["username"].Value;
await this.account.FollowUserIdAsync(targetName);
Console.WriteLine($"[{this.account.GetPrimaryKeyString()}] is now following [{targetName}]");
}
else
{
Console.WriteLine("Invalid target username. Try again or type /help for a list of commands.");
}
}
}
else if (command == "/following")
{
if (this.EnsureActiveAccount())
{
(await this.account.GetFollowingListAsync())
.ForEach(_ => Console.WriteLine(_));
}
}
else if (command == "/followers")
{
if (this.EnsureActiveAccount())
{
(await this.account.GetFollowersListAsync())
.ForEach(_ => Console.WriteLine(_));
}
}
else if (command == "/observe")
{
if (this.EnsureActiveAccount())
{
if (this.viewer == null)
{
this.viewer = await client.CreateObjectReference <IChirperViewer>(new ChirperConsoleViewer(this.account.GetPrimaryKeyString()));
}
await this.account.SubscribeAsync(this.viewer);
Console.WriteLine($"Now observing [{this.account.GetPrimaryKeyString()}]");
}
}
else if (command == "/unobserve")
{
if (this.EnsureActiveAccount())
{
await this.Unobserve();
}
}
else if (command.StartsWith("/unfollow "))
{
if (this.EnsureActiveAccount())
{
var match = Regex.Match(command, @"/unfollow (?<username>\w{1,100})");
if (match.Success)
{
var targetName = match.Groups["username"].Value;
await this.account.UnfollowUserIdAsync(targetName);
Console.WriteLine($"[{this.account.GetPrimaryKeyString()}] is no longer following [{targetName}]");
}
else
{
Console.WriteLine("Invalid target username. Try again or type /help for a list of commands.");
}
}
}
else if (command.StartsWith("/chirp "))
{
if (this.EnsureActiveAccount())
{
var match = Regex.Match(command, @"/chirp (?<message>.+)");
if (match.Success)
{
var message = match.Groups["message"].Value;
await this.account.PublishMessageAsync(message);
Console.WriteLine("Published the new message!");
}
else
{
Console.WriteLine("Invalid chirp. Try again or type /help for a list of commands.");
}
}
}
else
{
Console.WriteLine("Unknown command. Type /help for list of commands.");
}
}
}