public static int CompareRequests(RequestDesc first, RequestDesc second)
{
if (first.Probability > second.Probability)
{
return(1);
}
else if (first.Probability == second.Probability)
{
return(0);
}
else
{
return(-1);
}
}
public InputData(string filePath)
{
int linesRead = 0;
int currentEndpoint = 0;
int cachesNumber = 0;
using (StreamReader str = new StreamReader(filePath))
{
while (!str.EndOfStream)
{
string nextLine = str.ReadLine();
linesRead++;
string[] lineData = nextLine.Split(' ');
if (linesRead == 1)
{
videoSizes = new int[Convert.ToInt32(lineData[0])];
endPoints = new Endpoint[Convert.ToInt32(lineData[1])];
cachesNumber = Convert.ToInt32(lineData[3]);
cacheSize = Convert.ToInt32(lineData[4]);
//cacheLatencies = new CacheEndpointLatency[Convert.ToInt32(lineData[3])];
}
else if (linesRead == 2)
{
for (int i = 0; i < lineData.Length; i++)
{
int videoSize = Convert.ToInt32(lineData[i]);
videoSizes[i] = videoSize;
if (videoSize < minVideoSize)
{
minVideoSize = videoSize;
}
}
}
else if (lineData.Length < 3)
{
int lRead = linesRead - 2;
var endpoint = new Endpoint
{
DataCenterLatency = Convert.ToInt32(lineData[0]),
CacheLatencies = new List <CacheEndpointLatency>(),
Id = currentEndpoint
};
int linkedCaches = Convert.ToInt32(lineData[1]);
for (int k = 0; k < linkedCaches; k++)
{
string[] lData = str.ReadLine().Split(' ');
linesRead++;
var latency = new CacheEndpointLatency
{
CacheId = Convert.ToInt32(lData[0]),
Value = Convert.ToInt32(lData[1]),
EndPointId = currentEndpoint,
Difference = endpoint.DataCenterLatency - Convert.ToInt32(lData[1])
};
endpoint.CacheLatencies.Add(latency);
}
endPoints[currentEndpoint] = endpoint;
currentEndpoint++;
//endPoints = endPoints.OrderBy(xx => xx.Id).ToArray();
}
else
{
var request = new RequestDesc
{
VideoId = Convert.ToInt32(lineData[0]),
EndPointId = Convert.ToInt32(lineData[1]),
RequestNumber = Convert.ToInt32(lineData[2])
};
requestDescriptions.Add(request);
endPoints.First(xx => xx.Id == request.EndPointId).TotalRequests += request.RequestNumber;
}
}
}
foreach (var request in requestDescriptions)
{
request.Probability = (decimal)request.RequestNumber / endPoints.First(xx => xx.Id == request.EndPointId).TotalRequests;
}
for (int i = 0; i < cachesNumber; i++)
{
Caches.Add(new Cache
{
CacheId = i,
CacheSize = cacheSize
});
}
}
