public Task SendCloudToDeviceMessageAsync(String data, ReceivedFeedBackData callback = null)
{
return(Task.Run(() =>
{
SendCommand(data, callback);
}));
}
// this function is used to receive the feed back for the message sent
private void ReceiveFeedback(ReceivedFeedBackData callback, string filter)
{
string audience = Fx.Format("{0}/messages/servicebound/feedback", HOST);
string resourceUri = Fx.Format("{0}/messages/servicebound/feedback", HOST);
string sasToken = GetSharedAccessSignature(SHARED_ACCESS_KEY_NAME, SHARED_ACCESS_KEY, resourceUri, new TimeSpan(1, 0, 0));
bool cbs = PutCbsToken(connection, HOST, sasToken, audience);
if (cbs)
{
string entity = "/messages/servicebound/feedback";
// Form the filter for receiving message based on the time stamp
Map filters = new Map();
if (filter != null)
{
filters.Add(new Amqp.Types.Symbol("apache.org:selector-filter:string"),
new DescribedValue(new Amqp.Types.Symbol("apache.org:selector-filter:string"), filter));
}
ReceiverLink receiveLink = new ReceiverLink(session, "receive-link", new Source()
{
Address = entity, FilterSet = filters
},
null);
Message received = receiveLink.Receive();
if (received != null)
{
receiveLink.Accept(received);
Data data = (Data)received.BodySection;
callback(Encoding.UTF8.GetString(data.Binary));
Debug.WriteLine(Encoding.UTF8.GetString(data.Binary));
}
receiveLink.Close();
}
}
//This Methods sends the given string to the device end point
public void SendCloudToDeviceMessage(String data, ReceivedFeedBackData callback = null)
{
Task taskB = new Task(() =>
{
SendCommand(data,callback);
});
taskB.Start();
// taskB.Wait();
}
// this function is core function that sends the message to the device
private void SendCommand(string Message, ReceivedFeedBackData callback = null)
{
try
{
Debug.WriteLine("Send " + Message + " " + DEVICE_ID);
long time = DateTimeToTimestamp(DateTime.UtcNow);
lock (SendSync)
{
address = new Address(HOST, PORT, null, null);
connection = new Connection(address);
session = new Session(connection);
string audience = Fx.Format("{0}/messages/devicebound", HOST);
string resourceUri = Fx.Format("{0}/messages/devicebound", HOST);
//We send the SAS token to the CBS node before sending the actual data
string sasToken = GetSharedAccessSignature(SHARED_ACCESS_KEY_NAME, SHARED_ACCESS_KEY, resourceUri, new TimeSpan(1, 0, 0));
bool cbs = PutCbsToken(connection, HOST, sasToken, audience);
if (cbs)
{
// nodes to send the data
string to = Fx.Format("/devices/{0}/messages/devicebound", DEVICE_ID);
string entity = "/messages/devicebound";
SenderLink senderLink = new SenderLink(session, "sender-link", entity);
var messageValue = Encoding.UTF8.GetBytes(Message);
Message message = new Message()
{
BodySection = new Data()
{
Binary = messageValue
}
};
message.Properties = new Properties();
message.Properties.To = to;
message.Properties.MessageId = Guid.NewGuid().ToString();
message.ApplicationProperties = new ApplicationProperties();
message.ApplicationProperties["iothub-ack"] = "full";
senderLink.Send(message);
if (callback != null)
{
ReceiveFeedback(callback, "amqp.annotation.x-opt-enqueuedtimeutc > " + time);
}
senderLink.Close();
session.Close();
connection.Close();
}
}
}
catch (Exception)
{
throw;
}
}
//This Methods sends the given string to the device end point
public void SendCloudToDeviceMessage(String data, ReceivedFeedBackData callback = null)
{
Task taskB = new Task(() =>
{
SendCommand(data, callback);
});
taskB.Start();
// taskB.Wait();
}
// this function is used to receive the feed back for the message sent
private void ReceiveFeedback(ReceivedFeedBackData callback,string filter)
{
string audience = Fx.Format("{0}/messages/servicebound/feedback", HOST);
string resourceUri = Fx.Format("{0}/messages/servicebound/feedback", HOST);
string sasToken = GetSharedAccessSignature(SHARED_ACCESS_KEY_NAME, SHARED_ACCESS_KEY, resourceUri, new TimeSpan(1, 0, 0));
bool cbs = PutCbsToken(connection, HOST, sasToken, audience);
if (cbs)
{
string entity = "/messages/servicebound/feedback";
// Form the filter for receiving message based on the time stamp
Map filters = new Map();
if (filter != null)
{
filters.Add(new Amqp.Types.Symbol("apache.org:selector-filter:string"),
new DescribedValue(new Amqp.Types.Symbol("apache.org:selector-filter:string"), filter));
}
ReceiverLink receiveLink = new ReceiverLink(session, "receive-link", new Source() { Address = entity, FilterSet = filters },
null);
Message received = receiveLink.Receive();
if (received != null)
{
receiveLink.Accept(received);
Data data = (Data)received.BodySection;
callback(Encoding.UTF8.GetString(data.Binary));
Debug.WriteLine(Encoding.UTF8.GetString(data.Binary));
}
receiveLink.Close();
}
}
// this function is core function that sends the message to the device
private void SendCommand(string Message, ReceivedFeedBackData callback = null)
{
try
{
Debug.WriteLine("Send " + Message + " " + DEVICE_ID);
long time = DateTimeToTimestamp(DateTime.UtcNow);
lock (SendSync)
{
address = new Address(HOST, PORT, null, null);
connection = new Connection(address);
session = new Session(connection);
string audience = Fx.Format("{0}/messages/devicebound", HOST);
string resourceUri = Fx.Format("{0}/messages/devicebound", HOST);
//We send the SAS token to the CBS node before sending the actual data
string sasToken = GetSharedAccessSignature(SHARED_ACCESS_KEY_NAME, SHARED_ACCESS_KEY, resourceUri, new TimeSpan(1, 0, 0));
bool cbs = PutCbsToken(connection, HOST, sasToken, audience);
if (cbs)
{
// nodes to send the data
string to = Fx.Format("/devices/{0}/messages/devicebound", DEVICE_ID);
string entity = "/messages/devicebound";
SenderLink senderLink = new SenderLink(session, "sender-link", entity);
var messageValue = Encoding.UTF8.GetBytes(Message);
Message message = new Message()
{
BodySection = new Data() { Binary = messageValue }
};
message.Properties = new Properties();
message.Properties.To = to;
message.Properties.MessageId = Guid.NewGuid().ToString();
message.ApplicationProperties = new ApplicationProperties();
message.ApplicationProperties["iothub-ack"] = "full";
senderLink.Send(message);
if (callback != null)
{
ReceiveFeedback(callback, "amqp.annotation.x-opt-enqueuedtimeutc > " + time);
}
senderLink.Close();
session.Close();
connection.Close();
}
}
}
catch (Exception)
{
throw;
}
}
