public SettingsReader(string settingsFile, AppSettingsFileType appSettingsFileType, string[] args)
{
// Order is important here. We want the most general (environment) to be loaded first, and the most specific (command line args) to be loaded last.
var settings = new ConfigurationBuilder()
.AddEnvironmentVariables();
if (!string.IsNullOrWhiteSpace(settingsFile))
{
if (appSettingsFileType == AppSettingsFileType.NONE)
{
var extension = System.IO.Path.GetExtension(settingsFile);
if (string.Compare(extension, ".json", true) == 0)
{
appSettingsFileType = AppSettingsFileType.JSON;
}
else if (string.Compare(extension, ".config", true) == 0)
{
appSettingsFileType = AppSettingsFileType.APP_CONFIG;
}
else if (string.Compare(extension, ".xml", true) == 0)
{
appSettingsFileType = AppSettingsFileType.XML;
}
}
if (appSettingsFileType == AppSettingsFileType.JSON)
{
settings = settings.AddJsonFile(settingsFile);
}
else if (appSettingsFileType == AppSettingsFileType.XML)
{
settings = settings.AddXmlFile(settingsFile);
}
else if (appSettingsFileType == AppSettingsFileType.APP_CONFIG)
{
settings = settings.AddAppConfig(settingsFile);
}
}
settings = settings.AddCommandLine(args);
Configuration = settings.Build();
}
