/// <summary>
/// Receive messages from the other app
/// </summary>
/// <param name="sender">The connection the message is from</param>
/// <param name="args">The arguments for the message</param>
private async void RequestReceived(AppServiceConnection sender, AppServiceRequestReceivedEventArgs args)
{
if (!IsValid())
{
_log.Information("AppConnection.RequestReceived: called before the connection is valid");
throw new InvalidOperationException("Message received before connection is opened");
}
var requestDefferal = args.GetDeferral();
try
{
_log.Information($"AppConnection.RequestReceived: received the following message: {ValueSetOut.ToString(args.Request.Message)}");
AppServiceResponseStatus status = AppServiceResponseStatus.Unknown;
if (MessageReceived != null)
{
AppMessage lc = AppMessage.FromValueSet(args.Request.Message);
AppMessage result = MessageReceived(lc);
_log.Information($"AppConnection.RequestRecieved: response: {result.ToString()}");
status = await args.Request.SendResponseAsync(result.ToValueSet());
}
_log.Information($"AppConnection.RequestReceived: Response to Request returned: {status.ToString()}");
}
finally
{
requestDefferal.Complete();
}
}
/// <summary>
/// Send a Command message to the head application
/// </summary>
/// <param name="command">The command to send</param>
/// <returns>The AppMessage containing the response</returns>
public IAsyncOperation <AppMessage> SendCommandAsync(AppMessage command)
{
return(Task <AppMessage> .Run(async() =>
{
AppServiceResponse response = null;
AppMessage retCommand;
if (IsValid())
{
_log.Information($"SendCommandAsync: Sending {command.ToString()}");
response = await Connection.SendMessageAsync(command.ToValueSet());
if (response.Status != AppServiceResponseStatus.Success)
{
retCommand = new AppMessage(
AppMessage.CommandType.Error,
$"Command response status: {response.Status} with message: {ValueSetOut.ToString(response.Message)}"
);
_log.Error(retCommand.Param.ToString());
}
else
{
retCommand = AppMessage.FromValueSet(response.Message);
}
}
else
{
_log.Error("SendCommandAsync: called before the connection is valid");
throw new InvalidOperationException("Cannot send a command until connection is opened");
}
return retCommand;
}
).AsAsyncOperation <AppMessage>());
}