public LonLat GetFromFile(int index, string file)
{
string path = getMappedPath(file);
if (currentFile == null || !file.Equals(currentFile) || index < lineNumber)
{
currentFile = file;
sr = new StreamReader(path);
lineNumber = 0;
}
string line = null;
while (index != lineNumber)
{
line = sr.ReadLine();
if (line == null)
{
break; // there are less than 15 lines in the file
}
lineNumber++;
}
if (line == null || line.Equals(Environment.NewLine))
{
// End of file
return(null);
}
LonLat lonLat = LonLat.FromString(line);
return(lonLat);
}
public LonLat GetCoordinatesAndSave(string ip, int port, string file)
{
LonLat x = GetCoordinatesFromServer(ip, port);
if (x == null)
{
return(null);
}
fileManager.AppendToFile(x, file);
return(x);
}
public void AppendToFile(LonLat lonLat, string file)
{
string path = getMappedPath(file);
if (!File.Exists(path))
{
// Create file and dispose of stream opened for it
File.CreateText(path).Dispose();
}
// Append LonLoat to file
File.AppendAllText(path, lonLat.toString() + Environment.NewLine);
}
public LonLat GetCoordinatesFromServer(string ip, int port)
{
double[] arr;
lock (syncLock)
{
/* critical code */
dataRequester.ChangeConnectionIfNeeded(ip, port);
arr = dataRequester.RequestData();
}
LonLat x = new LonLat(arr[0], arr[1]);
return(x);
}