private static void PrintHints()
{
var menuColor = ConsoleColor.Magenta;
PrettyConsole.Line("Type '/start to start with default topology", menuColor);
PrettyConsole.Line("Type '<any text>' to send a message", menuColor);
}
private static async Task LeaveChannel(IClusterClient client)
{
if (!EnsureChannelMembership())
{
return;
}
PrettyConsole.Line($"Leaving channel {_joinedChannel}");
var room = client.GetGrain <IChannel>(_joinedChannel);
var roomId = await room.GetId();
var stream = client.GetStreamProvider(Constants.ChatRoomStreamProvider).GetStream <ChatMsg>(roomId, Constants.CharRoomStreamNameSpace);
//unsubscribe from the channel/stream since client left, so that client won't
//receive future messages from this channel/stream
var subscriptionHandles = await stream.GetAllSubscriptionHandles();
foreach (var handle in subscriptionHandles)
{
await handle.UnsubscribeAsync();
}
await room.Leave(_userName);
_joinedChannel = null;
}
private static async Task JoinChannel(IClusterClient client, string channelName)
{
if (_joinedChannel == channelName)
{
PrettyConsole.Line($"You already joined channel {channelName}. Double joining a channel, which is implemented as a stream, would result in double subscription to the same stream, " +
$"which would result in receiving duplicated messages. For more information, please refer to Orleans streaming documentation.");
return;
}
PrettyConsole.Line($"Joining to channel {channelName}");
var room = client.GetGrain <IChannel>(channelName);
var roomId = await room.GetId();
var stream = client.GetStreamProvider(Constants.ChatRoomStreamProvider).GetStream <ChatMsg>(roomId, Constants.CharRoomStreamNameSpace);
var logger = client.ServiceProvider.GetService <ILoggerFactory>().CreateLogger($"{channelName} channel");
//subscribe to the stream to receiver farther messages sent to the chatroom
await stream.SubscribeAsync(new StreamObserver(logger));
await room.Join(_userName);
_joinedChannel = channelName;
}
private static bool EnsureChannelMembership()
{
if (string.IsNullOrEmpty(_joinedChannel))
{
PrettyConsole.Line($"You're not a member of a channel");
return(false);
}
return(true);
}
private static async Task JoinChannel(IClusterClient client, string channelName)
{
PrettyConsole.Line($"Joining to channel {channelName}");
_joinedChannel = channelName;
var room = client.GetGrain <IChatRoom>(_joinedChannel);
await room.Join("Alexey");
await ShowCurrentChannelHistory(client);
}
private static async Task ShowCurrentChannelHistory(IClusterClient client)
{
var room = client.GetGrain <IChannel>(_joinedChannel);
var history = await room.ReadHistory(1000);
PrettyConsole.Line($"====== History for '{_joinedChannel}' Channel ======", ConsoleColor.DarkGreen);
foreach (var msg in history)
{
PrettyConsole.Line($" ({msg.Created:g}) {msg.Author}> {msg.Text}", ConsoleColor.DarkGreen);
}
}
public static void Main()
{
var clientInstance = InitializeClient().GetAwaiter().GetResult();
PrettyConsole.Line("==== CLIENT: Initialized ====", ConsoleColor.Cyan);
PrettyConsole.Line("CLIENT: Write commands:", ConsoleColor.Cyan);
Menu(clientInstance).GetAwaiter().GetResult();
PrettyConsole.Line("==== CLIENT: Shutting down ====", ConsoleColor.DarkRed);
}
private static void PrintHints()
{
var menuColor = ConsoleColor.Magenta;
PrettyConsole.Line("Type '/r' to run task", menuColor);
PrettyConsole.Line("Type '/j <channel>' to join specific channel", menuColor);
PrettyConsole.Line("Type '/l <channel>' to leave specific channel", menuColor);
PrettyConsole.Line("Type '<any text>' to send a message", menuColor);
PrettyConsole.Line("Type '/h' to re-read channel history", menuColor);
PrettyConsole.Line("Type '/exit' to exit client.", menuColor);
}
private static void PrintHints()
{
var menuColor = ConsoleColor.Magenta;
PrettyConsole.Line("Type '/j <channel>' to join specific channel", menuColor);
PrettyConsole.Line("Type '/n <username>' to set your user name", menuColor);
PrettyConsole.Line("Type '/l' to leave specific channel", menuColor);
PrettyConsole.Line("Type '<any text>' to send a message", menuColor);
PrettyConsole.Line("Type '/h' to re-read channel history", menuColor);
PrettyConsole.Line("Type '/m' to query members in the channel", menuColor);
PrettyConsole.Line("Type '/exit' to exit client.", menuColor);
}
private static async Task ShowChannelMembers(IClusterClient client)
{
var room = client.GetGrain <IChannel>(_joinedChannel);
var members = await room.GetMembers();
PrettyConsole.Line($"====== Members for '{_joinedChannel}' Channel ======", ConsoleColor.DarkGreen);
foreach (var member in members)
{
PrettyConsole.Line(member, ConsoleColor.DarkGreen);
}
PrettyConsole.Line("============", ConsoleColor.DarkGreen);
}
private static async Task <IClusterClient> InitializeClient(string[] args)
{
int initializeCounter = 0;
var initSucceed = false;
while (!initSucceed)
{
try
{
var client = new ClientBuilder().Configure <ClusterOptions>(options =>
{
options.ClusterId = Constants.ClusterId;
options.ServiceId = Constants.ServiceId;
})
//.UseLocalhostClustering()
.UseConsulClustering(options =>
{
options.Address = new Uri("http://127.0.0.1:8500");
options.KvRootFolder = "test";
})
.ConfigureApplicationParts(parts => parts.AddApplicationPart(typeof(IChannel).Assembly).WithReferences())
.ConfigureLogging(logging => logging.AddConsole())
//Depends on your application requirements, you can configure your client with other stream providers, which can provide other features,
//such as persistence or recoverability. For more information, please see http://dotnet.github.io/orleans/Documentation/Orleans-Streams/Stream-Providers.html
.AddSimpleMessageStreamProvider(Constants.ChatRoomStreamProvider)
.Build();
await client.Connect();
initSucceed = client.IsInitialized;
if (initSucceed)
{
return(client);
}
}
catch (Exception exc)
{
PrettyConsole.Line(exc.Message, ConsoleColor.Cyan);
initSucceed = false;
}
if (initializeCounter++ > 10)
{
return(null);
}
PrettyConsole.Line("Client Init Failed. Sleeping 5s...", ConsoleColor.Red);
Thread.Sleep(TimeSpan.FromSeconds(5));
}
return(null);
}
private static async Task Main(string[] args)
{
var clientInstance = await InitializeClient(args);
PrettyConsole.Line("==== CLIENT: Initialized ====", ConsoleColor.Cyan);
PrettyConsole.Line("CLIENT: Write commands:", ConsoleColor.Cyan);
PrintHints();
await JoinChannel(clientInstance, DefaultChannel);
await Interact(clientInstance);
await LeaveChannel(clientInstance);
PrettyConsole.Line("==== CLIENT: Shutting down ====", ConsoleColor.DarkRed);
}
private static async Task LeaveChannel(IClusterClient client)
{
PrettyConsole.Line($"Leaving channel {_joinedChannel}");
var room = client.GetGrain <IChannel>(_joinedChannel);
var streamId = await room.Leave(_userName);
var stream = client.GetStreamProvider(Constants.ChatRoomStreamNameProvider)
.GetStream <Message>(streamId, Constants.ChatRoomStreamNamespace);
var subscriptionsHandles = await stream.GetAllSubscriptionHandles();
foreach (var streamSubscriptionHandle in subscriptionsHandles)
{
await streamSubscriptionHandle.UnsubscribeAsync();
}
}
private static async Task RunTask(IClusterClient client)
{
var tick = client.GetGrain <ITicker>(Guid.Empty);
foreach (var item in Enumerable.Range(1, 100))
{
try
{
var res = await tick.Tick(10);
}
catch (Exception e)
{
PrettyConsole.Line($"Exception {e.Message}");
}
}
}
private static async Task ShowChannelMembers(IGrainFactory client)
{
if (!EnsureChannelMembership())
{
return;
}
var room = client.GetGrain <IChannel>(_joinedChannel);
var members = await room.GetMembers();
PrettyConsole.Line($"====== Members for '{_joinedChannel}' Channel ======", ConsoleColor.DarkGreen);
foreach (var member in members)
{
PrettyConsole.Line(member, ConsoleColor.DarkGreen);
}
PrettyConsole.Line("============", ConsoleColor.DarkGreen);
}
private static async Task ShowCurrentChannelHistory(IGrainFactory client)
{
if (!EnsureChannelMembership())
{
return;
}
var room = client.GetGrain <IChannel>(_joinedChannel);
var history = await room.ReadHistory(1000);
PrettyConsole.Line($"====== History for '{_joinedChannel}' Channel ======", ConsoleColor.DarkGreen);
foreach (var chatMsg in history)
{
PrettyConsole.Line($" ({chatMsg.Created:g}) {chatMsg.Author}> {chatMsg.Text}", ConsoleColor.DarkGreen);
}
PrettyConsole.Line("============", ConsoleColor.DarkGreen);
}
private static async Task RenameMember(IGrainFactory client, string nickname)
{
if (!EnsureChannelMembership())
{
return;
}
var room = client.GetGrain <IChannel>(_joinedChannel);
if (await room.RenameMember(_userName, nickname))
{
_userName = nickname;
PrettyConsole.Line($"Your user name is set to be {_userName}", ConsoleColor.DarkGreen);
}
else
{
PrettyConsole.Line($"Something went wrong during the renaming", ConsoleColor.DarkRed);
}
}
private static async Task Menu(IClusterClient client)
{
string input;
PrintHints();
do
{
input = Console.ReadLine();
if (string.IsNullOrWhiteSpace(input))
{
continue;
}
if (input.StartsWith("/j"))
{
await JoinChannel(client, input.Replace("/j", "").Trim());
}
else if (input.StartsWith("/n"))
{
userName = input.Replace("/n", "").Trim();
PrettyConsole.Line($"Your user name is set to be {userName}", ConsoleColor.DarkGreen);
}
else if (input.StartsWith("/l"))
{
await LeaveChannel(client);
}
else if (input.StartsWith("/h"))
{
await ShowCurrentChannelHistory(client);
}
else if (input.StartsWith("/m"))
{
await ShowChannelMembers(client);
}
else if (!input.StartsWith("/exit"))
{
await SendMessage(client, input);
}
} while (input != "/exit");
}
private static async Task TestCustomTopology(IClusterClient client)
{
var topologyManager = client.GetGrain <ITopology>(Constants.Topology_Manager);
//Get and add source
var sources = await topologyManager.GetRandomSources(1);
var source = sources[0];
joinedChannel = source.GetPrimaryKey();
//Get and add stateless to sources
var statelessOps = await topologyManager.GetRandomStatelessOperators(3);
await topologyManager.AddCustomeOperatorsToSources(sources, statelessOps);
//Get and Add stateful to stateless
var statefulOps = await topologyManager.GetRandomStatefulOperators(2);
await topologyManager.AddCustomeOperatorsToNonSourceOperators(statelessOps, statefulOps);
PrettyConsole.Line("Stateless: " + statelessOps.Count + " StatefulOps: " + statefulOps.Count);
//Start Timer
var coordinator = client.GetGrain <IBatchCoordinator>(Constants.Coordinator);
await coordinator.StartBarrierTimer();
await source.RegisterTimerForSources();
//Start Error Detector
var detector = client.GetGrain <IErrorDetector>(Constants.Error_Detector);
await detector.RegisterTimerToDetectFailures();
//var room2 = client.GetGrain<IStreamSource>("new");
var streamId = await source.Join(userName);
//var streamId2 = await room2.Join(userName);
var stream = client.GetStreamProvider(Constants.FaultTolerantStreamProvider)
.GetStream <StreamMessage>(streamId, Constants.FaultTolerantStreamNameSpace);
//subscribe to the stream to receiver furthur messages sent to the chatroom
StatefulStreamObserver observer = new StatefulStreamObserver(client.ServiceProvider.GetService <ILoggerFactory>()
.CreateLogger($"{joinedChannel} channel"));
await stream.SubscribeAsync(observer);
}
static async Task <IClusterClient> InitializeClient(string[] args)
{
int initializeCounter = 0;
var config = ClientConfiguration.LocalhostSilo()
.SimpleMessageStreamProvider(FluentConfig.AltNetStream);
config.DefaultTraceLevel = Severity.Error;
var initSucceed = false;
while (!initSucceed)
{
try
{
var client = new ClientBuilder().UseConfiguration(config).Build();
await client.Connect();
initSucceed = client.IsInitialized;
if (initSucceed)
{
return(client);
}
}
catch (Exception exc)
{
PrettyConsole.Line(exc.Message, ConsoleColor.Cyan);
initSucceed = false;
}
if (initializeCounter++ > 10)
{
return(null);
}
PrettyConsole.Line("Client Init Failed. Sleeping 5s...", ConsoleColor.Red);
Thread.Sleep(TimeSpan.FromSeconds(5));
}
return(null);
}
private static async Task <IClusterClient> InitializeClient()
{
int initializeCounter = 0;
while (true)
{
try {
var client = new ClientBuilder()
.Configure <ClusterOptions>(options => {
options.ClusterId = Constants.ClusterId;
options.ServiceId = Constants.ServiceId;
})
.ConfigureApplicationParts(parts => parts.AddApplicationPart(typeof(IChannel).Assembly).WithReferences())
.ConfigureLogging(logging => logging.AddConsole())
.AddSimpleMessageStreamProvider(Constants.ChatRoomStreamNameProvider)
.Build();
await client.Connect();
if (client.IsInitialized)
{
return(client);
}
}
catch (Exception e) {
PrettyConsole.Line(e.Message, ConsoleColor.Cyan);
}
if (initializeCounter++ > 10)
{
return(null);
}
PrettyConsole.Line("Client Init Failed. Sleeping 5s...", ConsoleColor.Red);
Thread.Sleep(TimeSpan.FromSeconds(5));
}
}
public Task OnNextAsync(StreamMessage msg, StreamSequenceToken token = null)
{
PrettyConsole.Line("Receive Message, Key: " + msg.Key + " Value: " + msg.Value);
return(Task.CompletedTask);
}
private static async Task LeaveChannel(IClusterClient client, string channelName)
{
PrettyConsole.Line($"Leaving to channel {channelName}");
var room = client.GetGrain <IChatRoom>(_joinedChannel);
await room.Leave("Alexey");
}
