public string Ask(string question)
{
SampleServiceClient proxy = null;
string response = null;
int callCount = 0;
bool callCompleted = false;
bool shouldRetry = true;
while (!callCompleted && callCount < MaxRetryCount && shouldRetry) {
callCount++;
try {
proxy = new SampleServiceClient();
var svcResponse = proxy.AskQuestion(new SampleServiceRequest {
Question = "Are we nearly there yet?"
});
if (svcResponse != null)
response = svcResponse.Answer;
callCompleted = true;
} catch (EndpointNotFoundException ex) {
if (callCount >= MaxRetryCount && !callCompleted) {
throw;
} else {
Console.WriteLine("Can't find service - going to sit here patiently for 2seconds before trying again.");
Thread.Sleep(2000);
// Do nothing
}
} catch (Exception ex) {
shouldRetry = false;
} finally {
if (proxy != null) {
try {
if (proxy.State == CommunicationState.Opened)
proxy.Close();
else if (proxy.State == CommunicationState.Faulted)
proxy.Abort();
} catch (CommunicationException) {
proxy.Abort();
} catch (TimeoutException) {
proxy.Abort();
}
}
}
}
return response;
}
