Pushsharp version 4.0
I am getting an exception "System.InvalidOperationException: The collection has been marked as complete with regards to additions". After searching for hours I came to know this is because the queue notification do not accepts the same Id when its called 2nd time. My problem is let say if this service is running I send a notification to User-token-1 and after few seconds if I send the notification to same user with same User-token-1 then I get the exception.
To produce this issue just send the notification two times to same user but calling this code function two times not in single custom message. I am sending it two times because I have a requirement to send multiple notification to same user but not in single push message but a different push message. To give an idea how this error can be reproduces please understand the following situation and please ignore my custom variables. Even though if I ignore this like calling SendPushMessageToEmployees only one time then later if I need to send notification to same user after few minutes on same running service then I will get same exception.
main()
{
SendPushMessageToEmployees(MyCustomMessage);
SendPushMessageToEmployees(MyCustomMessage);
}
public void SendNotification(List<PushMessage> pushMessages)
{
try
{
apnsBroker.Start();
foreach (PushMessage message in pushMessages)
{
if (!String.IsNullOrEmpty(message.DeviceId) )
{
apnsBroker.QueueNotification(new ApnsNotification
{
DeviceToken = message.DeviceId,
Payload = JObject.Parse("{\"aps\":{\"badge\":0,\"alert\":'" + message.Message + "',\"Workflow\":'" + message.Message + "'}}")
});
}
}
apnsBroker.Stop(true);
}
catch (Exception ex)
{
Console.WriteLine("{0}",ex.Message);
}
}
Exception : System.InvalidOperationException: The collection has been marked as complete with regards to additions.
StackTrace:
System.Collections.Concurrent.BlockingCollection1.TryAddWithNoTimeValidation(T item, Int32 millisecondsTimeout, CancellationToken cancellationToken) at PushSharp.Core.ServiceBroker1.QueueNotification(TNotification notification)
Class in my project
public class AppleServiceBroker : IServiceBroker
{
private ApnsServiceBroker apnsBroker;
public AppleServiceBroker()
{
if (apnsBroker == null)
{
var config = new ApnsConfiguration(ApnsConfiguration.ApnsServerEnvironment.Sandbox,
"PushNotification.p12", "MyPassword");
apnsBroker = new ApnsServiceBroker(config);
// Wire up events
apnsBroker.OnNotificationFailed += (notification, aggregateEx) =>
{
aggregateEx.Handle(ex =>
{
if (ex is ApnsNotificationException)
{
var notificationException = (ApnsNotificationException)ex;
var apnsNotification = notificationException.Notification;
var statusCode = notificationException.ErrorStatusCode;
Console.WriteLine("Apple Notification Failed: ID= " + apnsNotification.Identifier + " Code= " + statusCode);
}
else
{
Console.WriteLine("Apple Notification Failed for some unknown reason : " + ex.InnerException);
}
return true;
});
};
}
}
/// <summary>
/// Sends notification to apple servers
/// </summary>
/// <param name="pushMessages">List of push messages</param>
public void SendNotification(List<PushMessage> pushMessages)
{
try
{
apnsBroker.OnNotificationSucceeded += (notification) =>
{
Console.WriteLine("Apple Notification Sent!");
};
apnsBroker.Start();
foreach (PushMessage message in pushMessages)
{
if (!String.IsNullOrEmpty(message.DeviceId) )
{
apnsBroker.QueueNotification(new ApnsNotification
{
DeviceToken = message.DeviceId,
Payload = JObject.Parse("{\"aps\":{\"badge\":0,\"alert\":'" + message.Message + "',\"Workflow\":'" + message.Message + "'}}")
});
}
}
apnsBroker.Stop(true);
}
catch (Exception ex)
{
Console.WriteLine("{0}",ex.Message);
}
}
}
`
I have seen this answer but not help. As I am using Push Sharp Nuget Package. I also tried to contact push sharp author. No response so far. Anyone having same problem please comment.
Regards Ammad
