/// <summary>
/// Writes the given DB to a file
/// NOTE does not overwrite but complains
/// </summary>
/// <param name="db">The DB to write</param>
/// <param name="fName">The file to write to</param>
/// <returns>An empty string or error message</returns>
public static string WriteDb(awyDatabase db, string fName)
{
if (File.Exists(fName))
{
return($"File does exist\n");
}
return(WriteDbFile(db, fName));
}
/// <summary>
/// Reads the XPlane 11 earth_awy.dat file and populates the supplied database
/// </summary>
/// <param name="db">The awyDatabase to fill</param>
/// <param name="fName">The file to read</param>
/// <returns>The result string, either empty or error</returns>
public static string ReadDb(ref awyDatabase db, string fName)
{
if (!File.Exists(fName))
{
return($"File does not exist\n");
}
return(ReadDbFile(ref db, fName));
}
private static string WriteDbFile(awyDatabase db, string fName)
{
string ret = "";
using (var sr = new StreamWriter(fName)) {
foreach (var awrec in db.GetTable())
{
sr.WriteLine(awrec.Value.ToString( ));
}
sr.WriteLine("99 ");
}
return(ret);
}
/// <summary>
/// Creates the dbfile for our internal use
/// </summary>
/// <param name="myDataPath"></param>
/// <returns></returns>
public string CreateDbFile(string myDataPath)
{
Logger.Instance.Log($"DBCreator-CreateDbFile");
if (!Valid)
{
Error = "$Error: Init failed, check XP11 base path and earth_nav, earth_fix, earth_awy files";
Logger.Instance.Log($"DBCreator: {Error}");
return(Error); // ERROR exit
}
// delete existing files
string eawy = Path.Combine(myDataPath, MyAwyDbName);
if (File.Exists(eawy))
{
File.Delete(eawy);
}
string erwy = Path.Combine(myDataPath, MyRwyDbName);
if (File.Exists(erwy))
{
File.Delete(erwy);
}
var MYAWDB = new my_awlib.awyDatabase( );
MYAWDB.LoadFromX11DB(NAVDB, AWYDB);
Error = my_awlib.awyWriter.WriteDb(MYAWDB, eawy);
Logger.Instance.Log($"DBCreator-CreateMyAWYDB ended: {Error}");
var MYRWYDB = new my_rwylib.rwyDatabase( );
MYRWYDB.LoadFromX11DB(APTDB);
Error = my_rwylib.rwyWriter.WriteDb(MYRWYDB, erwy);
Logger.Instance.Log($"DBCreator-CreateMyRWYDB ended: {Error}");
return(Error);
}
/// <summary>
/// Reads one file to fill the db
/// </summary>
/// <param name="db">The awyDatabase to fill</param>
/// <param name="fName">The qualified filename</param>
/// <returns>The result string, either empty or error</returns>
private static string ReadDbFile(ref awyDatabase db, string fName)
{
string ret = "";
using (var sr = new StreamReader(fName)) {
string buffer = sr.ReadLine( );
while (!sr.EndOfStream)
{
if (buffer.StartsWith("99 "))
{
break;
}
var rec = FromNative(buffer);
if (rec != null && rec.IsValid)
{
ret += db.Add(rec); // collect adding information
}
buffer = sr.ReadLine( );
}
//
}
return(ret);
}