public GeoDecoder(string countrysrc,string geosrc,string timezonesrc)
{
//Exception mapping
//Note this maps a city to a different city not a timezone
Dictionary<string, string> exceptionMap = new Dictionary<string, string> ();
exceptionMap["CN/Hong Kong"]="CN/Beijing";
exceptionMap["China/Hong Kong"]="China/Beijing";
//init
string[] lines;
//decode timezones
lines = timezonesrc.Split ('\n');
for(int i=0; i<lines.Length; i++){
string line = lines [i];
if (line.Length==0 || line [0] == '#')
continue;
string[] tabs = line.Split ('\t');
TimeZone timezone = new TimeZone (
tabs [0], tabs [1], tabs [2], tabs [3]
);
timezoneDict [timezone.TimeZoneId] = timezone;
}
//decode countries
lines = countrysrc.Split ('\n');
for(int i=0; i<lines.Length; i++){
string line = lines [i];
if (line.Length==0 || line [0] == '#')
continue;
string[] tabs = line.Split ('\t');
CountryInfo country = new CountryInfo (
tabs[0], tabs[1], tabs[2], tabs[3],
tabs[4], tabs[5], tabs[6], tabs[7],
tabs[8], tabs[9], tabs[10], tabs[11],
tabs[12], tabs[13], tabs[14], tabs[15],
tabs[16], tabs[17], tabs[18]
);
countryDict [country.ISO] = country;
}
//decode geonames
lines = geosrc.Split ('\n');
for(int i=0; i<lines.Length; i++){
string line = lines [i];
if (line.Length==0 || line [0] == '#')
continue;
string[] tabs = line.Split ('\t');
GeoName geoname = new GeoName (
tabs [0], tabs [1], tabs [2], tabs [3],
tabs [4], tabs [5], tabs [6], tabs [7],
tabs [8], tabs [9], tabs [10], tabs [11],
tabs [12], tabs [13], tabs [14], tabs [15],
tabs [16], timezoneDict[tabs [17]], tabs [18]
);
CountryInfo country = countryDict [geoname.countrycode];
GeoName old=null;
if(finalDict.TryGetValue (String.Format("{0}/{1}", country.ISO, geoname.asciiname), out old)){
if (old.population > geoname.population)
continue;
}
finalDict [String.Format("{0}/{1}", country.ISO, geoname.asciiname)] = geoname;
finalDict [String.Format("{0}/{1}", country.ISO3, geoname.asciiname)] = geoname;
finalDict [String.Format("{0}/{1}", country.ISONumeric, geoname.asciiname)] = geoname;
finalDict [String.Format("{0}/{1}", country.Country, geoname.asciiname)] = geoname;
finalDict [String.Format("{0}/{1}", country.ISO, geoname.name)] = geoname;
finalDict [String.Format("{0}/{1}", country.ISO3, geoname.name)] = geoname;
finalDict [String.Format("{0}/{1}", country.ISONumeric, geoname.name)] = geoname;
finalDict [String.Format("{0}/{1}", country.Country, geoname.name)] = geoname;
if(geoname.alternatenames!=null && geoname.alternatenames.Length>0){
string[] alternate_names = geoname.alternatenames.Split (',');
foreach(string alternate_name in alternate_names){
finalDict [String.Format("{0}/{1}", country.ISO, alternate_name)] = geoname;
finalDict [String.Format("{0}/{1}", country.ISO3, alternate_name)] = geoname;
finalDict [String.Format("{0}/{1}", country.ISONumeric, alternate_name)] = geoname;
finalDict [String.Format("{0}/{1}", country.Country, alternate_name)] = geoname;
}
}
}
//map exceptions
foreach (var exception in exceptionMap) {
finalDict [exception.Key] = finalDict [exception.Value];
}
}