// Send a request to the tasking server
public void SendRequest(MsgMeas.TaskOperationType operation)
{
MsgMeas.TaskRequest request = null;
switch (operation)
{
case MsgMeas.TaskOperationType.Submit: // Create a new task for "myproc"
request = MsgMeas.TaskRequest.CreateSubmitRequest(MySupportedProcedure);
break;
case MsgMeas.TaskOperationType.Update: // Update an existing task
request = MsgMeas.TaskRequest.CreateUpdateRequest(MySupportedProcedure, m_currentTaskId);
break;
case MsgMeas.TaskOperationType.GetStatus: // Get the status of an existing task
request = MsgMeas.TaskRequest.CreateGetStatusRequest(m_currentTaskId);
break;
case MsgMeas.TaskOperationType.Cancel: // Cancel a task
request = MsgMeas.TaskRequest.CreateCancelRequest(m_currentTaskId);
break;
default:
throw new ArgumentException("Unexpected operation " + operation.ToString());
}
// Sending the request
SendRequest(request.ToXmlBytes());
// Waiting for a response
var responseXml = WaitForResponse();
MsgMeas.TaskResponse response;
try
{
response = new MsgMeas.TaskResponse(responseXml);
}
catch (MsgMeas.Neutral.InvalidMessageException e)
{
throw new InvalidOperationException("Failed to read response: " + e.Message);
}
if (response.RequestResult != MsgMeas.RequestResultType.Ok)
{
// Request failed!
throw new InvalidOperationException("Unexpected request result " + response.RequestResult.ToString());
}
// Processing the request
m_currentTaskId = response.StatusReports[0].TaskId; // Task ID is assigned by the server
// Do whatever you want with the response...
}
private MsgMeas.TaskResponse CreateOkResponse(MsgMeas.TaskOperationType operation)
{
// Creating a response object
switch (operation)
{
case MsgMeas.TaskOperationType.Submit:
// Processing a create request...
// ...
CurrentTaskStatus = MsgMeas.TaskStatusCodeType.InExecution;
CurrentTaskId = Guid.NewGuid().ToString();
return(MsgMeas.TaskResponse.CreateSubmitResponse(GetStatusReport()));
case MsgMeas.TaskOperationType.Update:
// Processing an update request...
// ...
return(MsgMeas.TaskResponse.CreateUpdateResponse(GetStatusReport()));
case MsgMeas.TaskOperationType.GetStatus:
// Processing a get status request...
// ...
return(MsgMeas.TaskResponse.CreateGetStatusResponse(
new SysColl.List <MsgMeas.TaskStatusReport>()
{
GetStatusReport()
}
));
case MsgMeas.TaskOperationType.Cancel:
// Processing a cancel request...
// ...
CurrentTaskStatus = MsgMeas.TaskStatusCodeType.Cancelled;
return(MsgMeas.TaskResponse.CreateCancelResponse(GetStatusReport()));
default:
throw new InvalidOperationException("Unexpected operation " + operation.ToString());
}
}
private MsgMeas.TaskResponse CreateFailureResponse(MsgMeas.TaskOperationType operation)
{
var statusReport = new MsgMeas.TaskStatusReport("?", "?");
MsgMeas.TaskResponse retval = null;
// Creating a response object
switch (operation)
{
case MsgMeas.TaskOperationType.Submit:
retval = MsgMeas.TaskResponse.CreateSubmitResponse(statusReport);
break;
case MsgMeas.TaskOperationType.Update:
retval = MsgMeas.TaskResponse.CreateUpdateResponse(statusReport);
break;
case MsgMeas.TaskOperationType.GetStatus:
retval = MsgMeas.TaskResponse.CreateGetStatusResponse(
new SysColl.List <MsgMeas.TaskStatusReport> {
statusReport
}
);
break;
case MsgMeas.TaskOperationType.Cancel:
retval = MsgMeas.TaskResponse.CreateCancelResponse(statusReport);
break;
default:
throw new InvalidOperationException("Unexpected operation " + operation.ToString());
}
// This indicates the server did not understand the request
retval.RequestResult = MsgMeas.RequestResultType.BadRequest;
return(retval);
}
