/// <summary>
/// Load current options data.
/// </summary>
/// <returns></returns>
private static XmlOptionsData Load()
{
XmlOptionsData xmlData = null;
Stream stream = null;
DateTime xmlFileTime = new DateTime();//used to compare against InstallLanguage.txt
try
{
// Try the real filename first.
string xmlFileName = FileName();
if (Storage4.FileExists(xmlFileName, StorageSource.All))
{
xmlFileTime = Storage4.GetLastWriteTimeUtc(xmlFileName, StorageSource.All);
stream = Storage4.OpenRead(xmlFileName, StorageSource.All);
XmlSerializer serializer = new XmlSerializer(typeof(XmlOptionsData));
xmlData = serializer.Deserialize(stream) as XmlOptionsData;
}
else
{
// If not there, try the back compat version.
xmlFileName = BackCompatFileName();
if (Storage4.FileExists(xmlFileName, StorageSource.All))
{
xmlFileTime = Storage4.GetLastWriteTimeUtc(xmlFileName, StorageSource.All);
stream = Storage4.OpenRead(xmlFileName, StorageSource.All);
XmlSerializer serializer = new XmlSerializer(typeof(XmlOptionsData));
xmlData = serializer.Deserialize(stream) as XmlOptionsData;
}
}
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
if (stream != null)
{
Storage4.Close(stream);
}
//Check for override of language.
if (xmlData != null && Storage4.FileExists(InstalledLanguageFileName(), StorageSource.All))
{
var langFileTime = Storage4.GetLastWriteTimeUtc(InstalledLanguageFileName(), StorageSource.All);
//If InstallerLanguage.txt is later than selected language.
if (langFileTime > xmlFileTime)
{
//Update language to match newly installed version.
xmlData.langauge = GetInstallerLanguageOrDefault();
Save();
}
}
return(xmlData);
} // end of Load()
/// <summary>
/// Load or create the options data.
/// </summary>
private static void Init()
{
_instance = Load();
// If not loaded, create a new default.
if (_instance == null)
{
_instance = new XmlOptionsData();
//Set default language from InstallerLanguage file(if any).
_instance.langauge = GetInstallerLanguageOrDefault();
//Save new config.
Save();
}
} // end of Init()
