public static Exception GetExceptionFromOutcome(Outcome outcome)
{
Exception retException = null;
if (outcome == null)
{
retException = new IotHubException("Unknown error.");
return(retException);
}
if (outcome.DescriptorCode == Rejected.Code)
{
var rejected = (Rejected)outcome;
retException = AmqpErrorMapper.ToIotHubClientContract(rejected.Error);
}
else if (outcome.DescriptorCode == Released.Code)
{
retException = new OperationCanceledException("AMQP link released.");
}
else
{
retException = new IotHubException("Unknown error.");
}
return(retException);
}
protected override async Task OnSendEventAsync(IEnumerable <Message> messages)
{
// List to hold messages in Amqp friendly format
var messageList = new List <Data>();
foreach (var message in messages)
{
using (AmqpMessage amqpMessage = message.ToAmqpMessage())
{
var data = new Data()
{
Value = MessageConverter.ReadStream(amqpMessage.ToStream())
};
messageList.Add(data);
}
}
Outcome outcome;
using (var amqpMessage = AmqpMessage.Create(messageList))
{
amqpMessage.MessageFormat = AmqpConstants.AmqpBatchedMessageFormat;
outcome = await this.SendAmqpMessageAsync(amqpMessage);
}
if (outcome.DescriptorCode != Accepted.Code)
{
throw AmqpErrorMapper.GetExceptionFromOutcome(outcome);
}
}
protected async override Task OnSendEventAsync(Message message)
{
Outcome outcome;
using (AmqpMessage amqpMessage = message.ToAmqpMessage())
{
outcome = await this.SendAmqpMessageAsync(amqpMessage);
}
if (outcome.DescriptorCode != Accepted.Code)
{
throw AmqpErrorMapper.GetExceptionFromOutcome(outcome);
}
}
public static Exception ToIotHubClientContract(Exception exception)
{
if (exception is TimeoutException)
{
return(new IotHubCommunicationException(exception.Message));
}
else if (exception is UnauthorizedAccessException)
{
return(new UnauthorizedException(exception.Message));
}
else
{
var amqpException = exception as AmqpException;
if (amqpException != null)
{
return(AmqpErrorMapper.ToIotHubClientContract(amqpException.Error));
}
return(exception);
}
}
async Task DisposeMessageAsync(string lockToken, Outcome outcome)
{
var deliveryTag = IotHubConnection.ConvertToDeliveryTag(lockToken);
Outcome disposeOutcome;
try
{
ReceivingAmqpLink deviceBoundReceivingLink = await this.GetDeviceBoundReceivingLinkAsync();
disposeOutcome = await deviceBoundReceivingLink.DisposeMessageAsync(deliveryTag, outcome, batchable : true, timeout : this.OperationTimeout);
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
throw AmqpClientHelper.ToIotHubClientContract(exception);
}
if (disposeOutcome.DescriptorCode != Accepted.Code)
{
if (disposeOutcome.DescriptorCode == Rejected.Code)
{
var rejected = (Rejected)disposeOutcome;
// Special treatment for NotFound amqp rejected error code in case of DisposeMessage
if (rejected.Error != null && rejected.Error.Condition.Equals(AmqpErrorCode.NotFound))
{
throw new DeviceMessageLockLostException(rejected.Error.Description);
}
}
throw AmqpErrorMapper.GetExceptionFromOutcome(disposeOutcome);
}
}
