public static CrsCodec CreateFromFile(string filename)
{
var codec = new CrsCodec();
codec.ReadFromFile(filename);
return(codec);
}
public static CrsCodec CreateFromFile(BinaryReader br)
{
var codec = new CrsCodec();
codec.ReadFromFile(br);
return(codec);
}
private static void Main(string[] args)
{
var freqDict = new Dictionary <string, Dictionary <string, int> >();
try
{
var stationfilename = "w:\\StationsRefData.xml";
var doc = XDocument.Load(stationfilename);
var tiplocToCrs = doc.Descendants("Station")
.Select(x => new { Crs = x.Element("CRS")?.Value, Tiploc = x.Element("Tiploc")?.Value })
.Where(x => !string.IsNullOrEmpty(x.Crs) && !string.IsNullOrEmpty(x.Tiploc))
.ToDictionary(x => x.Tiploc, x => x.Crs);
var startTime = DateTime.Now;
var filename = "s:\\ttisf772.mca";
var sum = Sha1File(filename);
Console.WriteLine($"Sha1 of {filename} is {sum}");
var count = 0;
var linenumber = 0;
bool isRecordInDate = false;
var allRuns = new List <List <string> >();
var oneRun = new List <string>();
var crsCompressor = new CrsCodec();
var minDate = DateTime.Today;
var maxDate = DateTime.Today;
foreach (var line in File.ReadLines(filename))
{
try
{
var recordType = line.Substring(0, 2);
if (recordType == "BS")
{
// This is a basic schedule record:
var bs = new BSRecord(line);
if (bs.RunsTo > DateTime.Today)
{
// This record is valid for the current date:
isRecordInDate = true;
count++;
}
}
if (isRecordInDate)
{
// check for origin, intermediate or terminating record:
if (recordType == "LO" || recordType == "LI" || recordType == "LT")
{
if (!(recordType == "LI" && line.Substring(15, 4).All(char.IsWhiteSpace)))
{
// the record is not a "station passing" record:
var tiploc = line.Substring(2, 7).Trim();
var crs = GetValueOrNull(tiplocToCrs, tiploc);
if (crs != null)
{
oneRun.Add(crs);
}
}
}
if (recordType == "LT")
{
isRecordInDate = false;
var newlist = new List <string>();
newlist.AddRange(oneRun);
allRuns.Add(newlist);
oneRun.Clear();
}
}
}
catch (Exception e)
{
Console.WriteLine($"Error at line {linenumber + 1} : {e.Message}");
}
linenumber++;
if (linenumber % 1000000 == 999999)
{
Console.WriteLine($"{linenumber + 1}");
}
}
var timetaken = DateTime.Now - startTime;
Console.WriteLine($"count of train runs is {allRuns.Count()} - time was {timetaken.TotalSeconds} seconds");
foreach (var run in allRuns)
{
for (int origin = 0; origin < run.Count - 1; origin++)
{
for (int destination = origin + 1; destination < run.Count; destination++)
{
DictUtils.AddEntryToList(freqDict, run[origin], run[destination]);
}
}
}
Console.WriteLine($"Frequency dictionary size is {freqDict.Count}");
CollectPrint();
var sortedDict = freqDict.OrderBy(x => x.Value.FirstOrDefault().Value);
foreach (var entry in freqDict)
{
Console.WriteLine($"--- {entry.Key} ---");
var top5 = entry.Value.OrderByDescending(x => x.Value);
foreach (var top in top5)
{
Console.WriteLine($" {top.Key} {top.Value}");
}
}
}
catch (Exception ex)
{
var codeBase = System.Reflection.Assembly.GetExecutingAssembly().CodeBase;
var progname = Path.GetFileNameWithoutExtension(codeBase);
Console.Error.WriteLine(progname + ": Error: " + ex.Message);
}
}
