private async Task Subscribe(string productStream, string queryGroup)
{
try
{
await _connection.CreatePersistentSubscriptionAsync(productStream, queryGroup, PersistentSubscriptionSettings.Create().ResolveLinkTos().StartFromBeginning(), new UserCredentials(_eventStoreSettings.UserName, _eventStoreSettings.Password));
}
catch (Exception e)
{
}
async Task EventAppeared(EventStorePersistentSubscriptionBase s, ResolvedEvent e)
{
using (var scope = _serviceProvider.CreateScope())
{
var mediator = scope.ServiceProvider.GetRequiredService <IMediator>();
var @event = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(e.Event.Data), new JsonSerializerSettings {
TypeNameHandling = TypeNameHandling.All
}) as INotification;
await mediator.Publish(@event);
}
};
void SubscriptionDropped(EventStorePersistentSubscriptionBase e, SubscriptionDropReason s, Exception exc)
{
_subscriptions.TryTake(out e);
_subscriptions.Add(_connection.ConnectToPersistentSubscriptionAsync(productStream, queryGroup, EventAppeared, SubscriptionDropped).Result);
};
_subscriptions.Add(await _connection.ConnectToPersistentSubscriptionAsync(productStream, queryGroup, EventAppeared, SubscriptionDropped));
}
private async Task CreateSubscription(IEventStoreConnection connection, string stream, string group)
{
var persistentSubscriptionSettings = PersistentSubscriptionSettings.Create().DoNotResolveLinkTos().StartFromCurrent();
var userCredentials = new UserCredentials("admin", "changeit");
await connection.CreatePersistentSubscriptionAsync(stream, group, persistentSubscriptionSettings, userCredentials);
}
public async Task Subscribe(string streamName, Func <Guid, object, Task> messageSender)
{
await DefaultRetryAsync(() => SubscribeImpl());
async Task SubscribeImpl()
{
await CreateSubscription();
await _conn.ConnectToPersistentSubscriptionAsync(
streamName, _options.GroupSubscription,
(_, x) => messageSender(
GetAggregateId(x.Event.EventStreamId),
_eventDeserializer.Deserialize(x.Event)));
Guid GetAggregateId(string streamId)
{
var streamIdParts = streamId.Split('-');
return(streamIdParts.Length == 2
? Guid.TryParse(streamIdParts[1], out Guid aggregateId)
? aggregateId
: Guid.Empty
: Guid.Empty);
}
async Task CreateSubscription()
{
var settings = PersistentSubscriptionSettings.Create()
.ResolveLinkTos()
.StartFromCurrent();
await _conn.CreatePersistentSubscriptionAsync(streamName, _options.GroupSubscription, settings, _options.Credentials);
}
}
}
public async Task Crate()
{
#region CreatePersistentSubscription
var userCredentials = new UserCredentials("admin", "changeit");
var settings = PersistentSubscriptionSettings
.Create()
.DoNotResolveLinkTos()
.StartFromCurrent();
await conn.CreatePersistentSubscriptionAsync(
"myStream",
"grour1",
settings,
userCredentials
);
var subscription = await conn.ConnectToPersistentSubscriptionAsync(
"myStream",
"group1",
(_, evt) => Console.WriteLine($"Received: {Encoding.UTF8.GetString(evt.Event.Data)}")
);
#endregion CreatePersistentSubscription
}
public static async Task <int> Main(string[] args)
{
// enumerate all streams
IEventStoreConnection conn = EventStoreConnection.Create(connection);
await Task.Run(() => conn.ConnectAsync());
try
{
await conn.CreatePersistentSubscriptionAsync(stream, group,
PersistentSubscriptionSettings.Create(), null);
}
catch
{
}
dynamic ps = conn.ConnectToPersistentSubscription(stream, group,
(s, e) => Process(s, e),
(s, r, ex) => HandleException(s, r, ex),
null,
2,
false);
Console.ReadKey();
}
private void CreateStream()
{
var settings = PersistentSubscriptionSettings.Create();
_connectionES.CreatePersistentSubscriptionAsync(streamName, "PictureScan", settings, _connectionES.Settings.DefaultUserCredentials);
SetPermisions();
}
public override async Task <CreatePersistentSubscriptionResponse> CreatePersistentSubscription(
CreatePersistentSubscriptionRequest request, ServerCallContext context)
{
await _eventStoreConnection.CreatePersistentSubscriptionAsync(request.Stream, request.GroupName,
request.Settings.ToPersistentSubscriptionSettings(), request.UserCredentials.ToUserCredentials());
return(new CreatePersistentSubscriptionResponse());
}
private static async Task CreateSubscription(IEventStoreConnection conn, EventStoreOptions options)
{
var settings = PersistentSubscriptionSettings.Create()
.ResolveLinkTos()
.StartFromCurrent();
await conn.CreatePersistentSubscriptionAsync(options.Subscription.stream, options.Subscription.group, settings, options.Credentials);
}
private async Task CreateSubscription(string subscription, string eventTypeStream, PersistentSubscriptionSettingsBuilder settings)
{
try
{
await _conn.CreatePersistentSubscriptionAsync(eventTypeStream, subscription, settings, _credentials);
}
catch
{
// Already exists
}
}
private static async Task StartMultipleSubscriptions()
{
try
{
await _subscriptionConnection.CreatePersistentSubscriptionAsync(
"$et-AccountCreated",
"InvoiceGeneration",
PersistentSubscriptionSettings
.Create()
.StartFromBeginning()
.CheckPointAfter(TimeSpan.FromSeconds(5))
.ResolveLinkTos()
.Build(), new UserCredentials("admin", "changeit"));
}
catch (Exception e)
{
Console.WriteLine($"Subscription already exist.");
}
await _subscriptionConnection.ConnectToPersistentSubscriptionAsync("$et-AccountCreated", "InvoiceGeneration", AccountCreatedEventAppeared);
}
private static void CreatePersistentSubscription(IEventStoreConnection conn)
{
try
{
conn.CreatePersistentSubscriptionAsync(StreamName, GroupName, PersistentSubscriptionSettings.Create().StartFromBeginning(),
new UserCredentials("admin", "changeit")).Wait();
}
catch (Exception e)
{
// Already exist
}
}
/// <summary>
/// Creates the persistent connection.
/// </summary>
/// <param name="streamName">Name of the stream.</param>
/// <param name="groupName">Name of the group.</param>
/// <param name="persistentSubscriptionSettings">The persistent subscription settings.</param>
/// <returns></returns>
private async Task CreatePersistentSubscription(String streamName, String groupName, PersistentSubscriptionSettings persistentSubscriptionSettings)
{
Guard.ThrowIfNullOrEmpty(streamName, typeof(ArgumentNullException), "Stream Name cannot be null or empty when creating a Persistent Subscription");
Guard.ThrowIfNullOrEmpty(groupName, typeof(ArgumentNullException), "Group Name cannot be null or empty when creating a Persistent Subscription");
Guard.ThrowIfNull(persistentSubscriptionSettings, typeof(ArgumentNullException), "Persistent Subscription Settings cannot be null when creating a Persistent Subscription");
// Get the connection
IEventStoreConnection connection = await this.GetEventStoreConnection();
// Attempt to create the subscription
await connection.CreatePersistentSubscriptionAsync(streamName, groupName, persistentSubscriptionSettings, this.UserCredentials);
}
public static void Method()
{
var userCredentials = new UserCredentials("admin", "changeit");
var settings = PersistentSubscriptionSettings.Create()
.DoNotResolveLinkTos().StartFromCurrent();
conn.CreatePersistentSubscriptionAsync("newstream", "gr1", settings, userCredentials).Wait();
var subscription = conn.ConnectToPersistentSubscriptionAsync(
"newstream", "gr1", (_, evt) =>
{
Console.WriteLine("Received: " + Encoding.UTF8.GetString(evt.Event.Data));
}).Result;
}
protected override void Given()
{
_conn = EventStoreConnection.Create(_node.TcpEndPoint);
_conn.ConnectAsync().Wait();
_conn.CreatePersistentSubscriptionAsync(_streamName, _groupName, _settings,
DefaultData.AdminCredentials).Wait();
_sub1 = _conn.ConnectToPersistentSubscription(_streamName, _groupName,
(subscription, @event) => Console.WriteLine(),
(subscription, reason, arg3) => Console.WriteLine());
_sub2 = _conn.ConnectToPersistentSubscription(_streamName, _groupName,
(subscription, @event) => Console.WriteLine(),
(subscription, reason, arg3) => Console.WriteLine(),
DefaultData.AdminCredentials);
}
private async Task EnsureSubscriptionExists(string queue, IEventStoreConnection connection)
{
try
{
await connection.CreatePersistentSubscriptionAsync(queue, queue, PersistentSubscriptionSettings.Create(), null).ConfigureAwait(false);
}
catch (Exception ex)
{
if (ex.Message != string.Format("Subscription group {0} on stream {0} already exists", queue))
{
throw;
}
}
}
public async Task Subscribe(CancellationToken cancelToken)
{
var stream = $"{_endpoint}.{Assembly.GetEntryAssembly().GetName().Version}";
var group = $"{_endpoint}.{Assembly.GetEntryAssembly().GetName().Version}.sub";
Logger.Write(LogLevel.Info, () => $"Endpoint [{_endpoint}] connecting to subscription group [{stream}]");
try
{
var settings = PersistentSubscriptionSettings.Create()
.StartFromBeginning()
.WithReadBatchOf(_readsize)
.WithMessageTimeoutOf(TimeSpan.FromSeconds(60))
.CheckPointAfter(TimeSpan.FromSeconds(10))
.ResolveLinkTos()
.WithNamedConsumerStrategy(SystemConsumerStrategies.RoundRobin);
await
_connection.CreatePersistentSubscriptionAsync(stream, group, settings,
_connection.Settings.DefaultUserCredentials).ConfigureAwait(false);
}
catch (InvalidOperationException)
{
}
ThreadPool.QueueUserWorkItem(_ =>
{
while (Bus.OnMessage == null || Bus.OnError == null)
{
Logger.Warn($"Could not find NSBs onMessage handler yet - if this persists there is a problem.");
Thread.Sleep(1000);
}
// PushSettings will only exist AFTER finding OnMessage
if (_concurrencyLimit == null)
{
_concurrencyLimit = new SemaphoreSlim(Bus.PushSettings.MaxConcurrency);
}
_subscription = _connection.ConnectToPersistentSubscriptionAsync(stream, group, EventProcessor(cancelToken), subscriptionDropped: (sub, reason, e) =>
{
Logger.Write(LogLevel.Warn, () => $"Subscription dropped for reason: {reason}. Exception: {e?.Message ?? "UNKNOWN"}");
ProcessingLive = false;
Dropped?.Invoke(reason.ToString(), e);
}, bufferSize: _readsize * 10, autoAck: false).Result;
ProcessingLive = true;
});
}
public async Task create(UserCredentials user)
{
try
{
var setting = create_subscription();
await event_store_connection.CreatePersistentSubscriptionAsync(Stream, Subscription, setting, user);
}
catch (Exception ex)
{
if (ex.GetType() != typeof(InvalidOperationException) ||
ex.Message != $"Subscription group {Subscription} on stream {Stream} already exists")
{
throw;
}
}
}
public static void ConnectToPersistentSubscription(
string chatRoom,
string groupName,
Action <ChatMessage> onRecieved)
{
Connection.CreatePersistentSubscriptionAsync(
chatRoom,
groupName,
PersistentSubscriptionSettings.Create().StartFromBeginning().Build(),
_userCredentials);
Connection.ConnectToPersistentSubscription(
groupName,
chatRoom,
OnRecievedPersistent(onRecieved));
}
private void CreateSubscription(IEventStoreConnection connection)
{
PersistentSubscriptionSettings settings = PersistentSubscriptionSettings.Create().StartFromCurrent();
try
{
connection.CreatePersistentSubscriptionAsync(_streamName, Group, settings, new UserCredentials("admin", "changeit")).Wait();
}
catch (AggregateException ex)
{
if (ex.InnerException != null && (ex.InnerException.GetType() != typeof(InvalidOperationException)
&& ex.InnerException?.Message != $"Subscription group {Group} on stream {_streamName} already exists"))
{
Console.WriteLine("Persistant Subscription: CreateSubscription exception :" + ex);
throw;
}
}
}
private void CreateSubscription()
{
PersistentSubscriptionSettings settings = PersistentSubscriptionSettings.Create()
.StartFromCurrent();
try
{
conn.CreatePersistentSubscriptionAsync(this.settings.Stream, this.settings.SubscriptionGroup, settings, User).Wait();
}
catch (AggregateException ex)
{
if (ex.InnerException.GetType() != typeof(InvalidOperationException) &&
ex.InnerException?.Message != $"Subscription group {this.settings.SubscriptionGroup} on stream {this.settings.Stream} already exists")
{
throw;
}
}
}
private void CreateSubscription()
{
var settings = PersistentSubscriptionSettings.Create()
.DoNotResolveLinkTos()
.StartFromCurrent();
try
{
conn.CreatePersistentSubscriptionAsync(streamName, groupName, settings, userCredentials).Wait();
}
catch (Exception e)
{
if (e.InnerException?.GetType() != typeof(InvalidOperationException) && e.InnerException?.Message !=
$"Subscription group {groupName} on stream {streamName} already exists")
{
throw;
}
}
}
private static void CreateSubscription(IEventStoreConnection conn)
{
PersistentSubscriptionSettings settings = PersistentSubscriptionSettings.Create()
.DoNotResolveLinkTos()
.StartFromCurrent();
try
{
conn.CreatePersistentSubscriptionAsync(STREAM, GROUP, settings, new UserCredentials("admin", "changeit")).Wait();
}
catch (AggregateException ex)
{
if (ex.InnerException.GetType() != typeof(InvalidOperationException) &&
ex.InnerException?.Message != $"Subscription group {GROUP} on stream {STREAM} already exists")
{
throw;
}
}
}
private async Task CreatePersistenSubscription()
{
PersistentSubscriptionSettings settings = PersistentSubscriptionSettings.Create()
.ResolveLinkTos()
.StartFromBeginning()
.WithExtraStatistics();
try
{
await _conn.CreatePersistentSubscriptionAsync(_streamName, "transactionReadModelWriter", settings,
_adminCredentials);
Console.WriteLine("PersistentSubscription created");
}
catch (Exception e)
{
Console.WriteLine("PersistentSubscription already exists, using existing one.");
}
}
private static async Task CreateSubscription(IEventStoreConnection conn, EventStoreOptions options)
{
try
{
var settings = PersistentSubscriptionSettings.Create()
.ResolveLinkTos()
.StartFromCurrent();
await conn.CreatePersistentSubscriptionAsync(options.Subscription.stream, options.Subscription.group, settings, options.Credentials);
}
catch (AggregateException ex)
{
if (ex.InnerException.GetType() != typeof(InvalidOperationException) &&
ex.InnerException?.Message != $"Subscription group {options.Subscription.group} on stream {options.Subscription.stream} already exists")
{
throw;
}
}
}
/*
* Normally the creating of the subscription group is not done in your general executable code.
* Instead it is normally done as a step during an install or as an admin task when setting
* things up. You should assume the subscription exists in your code.
*/
private void CreateSubscription()
{
PersistentSubscriptionSettings settings = PersistentSubscriptionSettings.Create()
.DoNotResolveLinkTos()
.StartFromCurrent();
try
{
_conn.CreatePersistentSubscriptionAsync(STREAM, GROUP, settings, User).Wait();
}
catch (AggregateException ex)
{
if (ex.InnerException.GetType() != typeof(InvalidOperationException) &&
ex.InnerException?.Message != $"Subscription group {GROUP} on stream {STREAM} already exists")
{
throw;
}
}
}
public EventStoreDataFactory(string connectionString, string username, string password)
{
this.Username = username;
this.Password = password;
connection = EventStoreConnection.Create(connectionString);
//EventStoreConnection.Create(new IPEndPoint(IPAddress.Loopback, 1113));
// Don't forget to tell the connection to connect!
connection.ConnectAsync().Wait();
//Should be run ONLY once actually.
try
{
EventStore.ClientAPI.SystemData.UserCredentials credentials = new EventStore.ClientAPI.SystemData.UserCredentials(username, password);
PersistentSubscriptionSettings settings = PersistentSubscriptionSettings.Create().DoNotResolveLinkTos().StartFromCurrent();
connection.CreatePersistentSubscriptionAsync("fingrid.messaging.smsrequest", "fingrid.messaging.smsrequest.group", settings, credentials).Wait();
}
catch { }
}
public static async Task <bool> CreateSubscription(
this IEventStoreConnection conn,
string stream,
string group,
UserCredentials credentials,
Microsoft.Extensions.Logging.ILogger logger,
bool startFromCurrent = false)
{
try
{
var settings = (startFromCurrent) ?
PersistentSubscriptionSettings
.Create()
.ResolveLinkTos()
.StartFromCurrent()
.Build() :
PersistentSubscriptionSettings
.Create()
.ResolveLinkTos()
.StartFromBeginning()
.Build();
await conn.CreatePersistentSubscriptionAsync(stream, group, settings, credentials);
return(true);
}
catch (InvalidOperationException invalidOperationException)
{
if (invalidOperationException.Message == $"Subscription group {group} on stream {stream} already exists")
{
return(true);
}
logger.LogError(invalidOperationException, invalidOperationException.Message);
throw;
}
catch (Exception e)
{
logger.LogError(e, e.Message);
throw;
}
}
public async Task InitializeActivityStream()
{
Logger.LogInformation("Initialize");
await DeleteActivitliesStream();
var conf =
PersistentSubscriptionSettings
.Create()
.StartFromBeginning()
.ResolveLinkTos()
.CheckPointAfter(TimeSpan.FromSeconds(1))
.MinimumCheckPointCountOf(1)
.MaximumCheckPointCountOf(10)
.Build();
await conn.CreatePersistentSubscriptionAsync(Constants.StreamNameActivities,
Constants.GroupNameActivities, conf,
creds);
}
public async Task InstallConsumerGroupFor(string stream, Func <PersistentSubscriptionSettingsBuilder, PersistentSubscriptionSettingsBuilder> alterSettings = null)
{
var settings = PersistentSubscriptionSettings.Create().PreferRoundRobin().ResolveLinkTos();
alterSettings = alterSettings ?? (x => x);
settings = alterSettings(settings);
var subscriberSettings = _environment.GetSettings <SubscribersSettings>();
var groupName = subscriberSettings.GetPersistentSubscriptionGroupNameFor(stream, _environment);
try
{
await _eventStoreConnection.CreatePersistentSubscriptionAsync(stream, groupName, settings, _eventStoreConnectionString.GetUserCredentials()).ConfigureAwait(false);
}
catch (Exception ex)
{
_environment.Log(ex, "Failed to create consumer group for stream: {0}", LogLevel.Error, stream);
}
}
private void CreateSubscription(Projection projection)
{
PersistentSubscriptionSettings settings = PersistentSubscriptionSettings.Create()
.DoNotResolveLinkTos()
.StartFromBeginning();
try
{
Console.WriteLine($"Persistent subscriptişng is creating for {projection}");
eventStoreConnection.CreatePersistentSubscriptionAsync(projection.ToString(), Group, settings, userCredentials).Wait();
}
catch (AggregateException ex)
{
if (ex.InnerException.GetType() != typeof(InvalidOperationException) &&
ex.InnerException?.Message != $"Subscription group {Group} on stream {projection.ToString()} already exists")
{
throw;
}
}
}
protected override void Given()
{
_conn = EventStoreConnection.Create(_node.TcpEndPoint.ToESTcpUri());
_conn.ConnectAsync().Wait();
_conn.CreatePersistentSubscriptionAsync(_streamName, _groupName, _settings,
DefaultData.AdminCredentials).Wait();
_sub1 = _conn.ConnectToPersistentSubscription(_streamName,_groupName,
(subscription, @event) => Console.WriteLine(),
(subscription, reason, arg3) => Console.WriteLine());
_sub2 = _conn.ConnectToPersistentSubscription(_streamName, _groupName,
(subscription, @event) => Console.WriteLine(),
(subscription, reason, arg3) => Console.WriteLine(),
DefaultData.AdminCredentials);
}
