/// <summary>
/// 读取FCB信息。
/// 由于信息文件较小，这里一次性读取完毕。
/// </summary>
/// <returns></returns>
public FcbFile Read()
{
if (!File.Exists(FilePath))
{
log.Error("FCB文件不存在！" + FilePath);
return(null);
}
log.Info("载入：" + FilePath);
FcbFileHeader header = ReadHeader(FilePath);
FcbFile file = new FcbFile(header);
using (var streamReader = new StreamReader(FilePath))
{
var line = "";
SkipHeader(streamReader, line);
Time time = Time.Default;
Geo.BaseDictionary <SatelliteNumber, FcbValue> currentEpochData = null;
while ((line = streamReader.ReadLine()) != null)
{
if (line.StartsWith("*"))
{
time = Time.Parse(Geo.Utils.StringUtil.SubString(line, 1));
currentEpochData = file.GetOrCreate(time);
}
if (line.StartsWith("P"))
{
SatelliteNumber prn = SatelliteNumber.Parse(line.Substring(1, 3));
var val = Double.Parse(line.Substring(23, 10));
var rms = Geo.Utils.StringUtil.ParseDouble(line, 53);
var item = new FcbValue(prn, time, val, rms);
currentEpochData[item.Prn] = item;
}
}
}
return(file);
}
private string CheckFileLoaded(Time time)
{
var fileName = BuildName(time);
if (!Files.ContainsKey(fileName))
{
var path = Path.Combine(this.Option.FilePath, fileName);
FcbFile file = null;
if (!File.Exists(path))
{
var dir = BuildDirectory(time);
path = Path.Combine(this.Option.FilePath, dir, fileName);
}
if (File.Exists(path))
{
FcbFileReader reader = new FcbFileReader(path);
file = reader.Read();
}
Files.Add(fileName, file);
}
return(fileName);
}