private static byte[] ObjectToByteArray(Object objectToSerialize)
{
MemoryStream fs = new MemoryStream();
BinaryFormatter formatter = new BinaryFormatter();
try
{
formatter.Serialize(fs, objectToSerialize);
return(fs.ToArray());
}
catch (SerializationException se)
{
DryadLinqClientLog.Add("Error occured during serialization. Message: " + se.Message);
throw;
}
finally
{
fs.Close();
}
}
/// <summary>
/// Wait for job completion.
/// </summary>
/// <returns>The status of the job.</returns>
public JobStatus WaitForCompletion()
{
JobStatus status;
int sleep = 2000;
int maxSleep = 20000;
int retries = 0;
while (true)
{
try
{
string msg = null;
switch (status = this.GetStatus())
{
case JobStatus.Success:
case JobStatus.Failure:
case JobStatus.Cancelled:
return(status);
case JobStatus.NotSubmitted:
msg = "The job to create this table has not been submitted yet. Waiting ...";
break;
case JobStatus.Running:
msg = "The job to create this table is still running. Waiting ...";
break;
case JobStatus.Waiting:
msg = "The job to create this table is still queued. Waiting ...";
break;
default:
throw new DryadLinqException(DryadLinqErrorCode.UnexpectedJobStatus,
String.Format(SR.UnexpectedJobStatus, status.ToString()));
}
retries = 0;
DryadLinqClientLog.Add(msg);
}
catch (System.Net.WebException)
{
retries++;
sleep = maxSleep;
DryadLinqClientLog.Add("Error contacting web server while querying job status. Waiting ...");
}
if (retries > 5)
{
throw new DryadLinqException(DryadLinqErrorCode.JobStatusQueryError,
SR.JobStatusQueryError);
}
// Sleep for a bit before checking the state again
if (sleep < maxSleep)
{
sleep = Math.Min(maxSleep, (int)(sleep * 1.05));
}
System.Threading.Thread.Sleep(sleep);
}
}
