Exemple #1
0
        public static CrsCodec CreateFromFile(string filename)
        {
            var codec = new CrsCodec();

            codec.ReadFromFile(filename);
            return(codec);
        }
Exemple #2
0
        public static CrsCodec CreateFromFile(BinaryReader br)
        {
            var codec = new CrsCodec();

            codec.ReadFromFile(br);
            return(codec);
        }
Exemple #3
0
        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);
            }
        }