/// <summary>
/// Tries to retrieve a service at the given url.
/// </summary>
/// <param name="serviceType"></param>
/// <param name="url"></param>
/// <returns>The service if successful, null otherwise</returns>
public Service GetService(Type serviceType, string url)
{
try {
// TODO: be sure the url is correct and contains an explicit port
Regex regex = RegexConstants.PATTERN_PORT;
var v = regex.Match(url);
int port = int.Parse(v.Groups[1].ToString());
Service res = (Service)Activator.GetObject(serviceType, url + port);
res.ProbeObject();
return(res);
} catch (Exception e) {
logger.Log("Error retriving service: " + e.Message, false);
}
return(null);
}
public WorkerService(IWorker worker)
{
this.worker = worker;
this.id = worker.GetId();
manager = new WorkersManager();
manager.AddOverseenWorker(new OverseenWorker(this, null)); // Adds himself as an available worker
logger = new LoggerWrapper("WS" + id);
logger.Log("Created a new WorkerService");
}
public WorkerService(IWorker worker)
{
this.worker = worker;
this.id = worker.GetId();
manager = new WorkersManager();
manager.AddOverseenWorker(new OverseenWorker(this, null)); // Adds himself as an available worker
logger = new LoggerWrapper("WS" + id);
logger.Log("Created a new WorkerService");
}
/// <summary>
/// This function is called by the client application to
/// the master worker/tracker so that the size of each
/// split can be calculated and the list of jobs be
/// prepared to give to the other workers.
/// </summary>
/// <param name="fileSize"></param>
/// <param name="nSplits"></param>
public void CalculateJobList(int fileSize, int nSplits)
{
logger.Log("Calculating job list on fileSize: " + fileSize + " with " + nSplits + " splits.");
checkForFrozenCommunication();
jobList = new List <split>();
// Calculate partition size, i.e. number of lines per split
double partitionSize = 0;
if (fileSize >= nSplits)
{
partitionSize = (1.0 * fileSize) / nSplits;
partitionSize = Math.Ceiling(partitionSize);
}
else // if number of splits is bigger than the number of lines...
{
partitionSize = 1; // each worker will process just 1 line
nSplits = fileSize; // the number of splits will not exceed the number of lines
}
int splitId = 0;
for (int i = 0; i < fileSize; i += (int)partitionSize)
{
split workerJob;
int lastLine = i + (int)partitionSize - 1;
if (lastLine >= fileSize) // final case when last element cant get as many lines
{
lastLine = fileSize - 1;
}
workerJob = new split(splitId, i, lastLine);
jobList.Add(workerJob);
//logger.Log("Job " + splitId + " { " + workerJob.from + ", " + workerJob.to + " }");
splitId++;
}
}
