/// <summary>
/// Save data settings to the file
/// </summary>
/// <param name="settings">Data settings</param>
/// <param name="fileProvider">File provider</param>
public static void SaveSettings(DataSettings settings, ISmiFileProvider fileProvider = null)
{
Singleton <DataSettings> .Instance = settings ?? throw new ArgumentNullException(nameof(settings));
fileProvider ??= CommonHelper.DefaultFileProvider;
var filePath = fileProvider.MapPath(SmiDataSettingsDefaults.FilePath);
//create file if not exists
fileProvider.CreateFile(filePath);
//save data settings to the file
var text = JsonConvert.SerializeObject(Singleton <DataSettings> .Instance, Formatting.Indented);
fileProvider.WriteAllText(filePath, text, Encoding.UTF8);
}
/// <summary>
/// Load data settings
/// </summary>
/// <param name="filePath">File path; pass null to use the default settings file</param>
/// <param name="reloadSettings">Whether to reload data, if they already loaded</param>
/// <param name="fileProvider">File provider</param>
/// <returns>Data settings</returns>
public static DataSettings LoadSettings(string filePath = null, bool reloadSettings = false, ISmiFileProvider fileProvider = null)
{
if (!reloadSettings && Singleton <DataSettings> .Instance != null)
{
return(Singleton <DataSettings> .Instance);
}
fileProvider ??= CommonHelper.DefaultFileProvider;
filePath ??= fileProvider.MapPath(SmiDataSettingsDefaults.FilePath);
//check whether file exists
if (!fileProvider.FileExists(filePath))
{
//if not, try to parse the file that was used in previous SmiMarketplace versions
filePath = fileProvider.MapPath(SmiDataSettingsDefaults.ObsoleteFilePath);
if (!fileProvider.FileExists(filePath))
{
return(new DataSettings());
}
//get data settings from the old txt file
var dataSettings = new DataSettings();
using (var reader = new StringReader(fileProvider.ReadAllText(filePath, Encoding.UTF8)))
{
string settingsLine;
while ((settingsLine = reader.ReadLine()) != null)
{
var separatorIndex = settingsLine.IndexOf(':');
if (separatorIndex == -1)
{
continue;
}
var key = settingsLine.Substring(0, separatorIndex).Trim();
var value = settingsLine.Substring(separatorIndex + 1).Trim();
switch (key)
{
case "DataProvider":
dataSettings.DataProvider = Enum.TryParse(value, true, out DataProviderType providerType) ? providerType : DataProviderType.Unknown;
continue;
case "DataConnectionString":
dataSettings.ConnectionString = value;
continue;
default:
dataSettings.RawDataSettings.Add(key, value);
continue;
}
}
}
//save data settings to the new file
SaveSettings(dataSettings, fileProvider);
//and delete the old one
fileProvider.DeleteFile(filePath);
Singleton <DataSettings> .Instance = dataSettings;
return(Singleton <DataSettings> .Instance);
}
var text = fileProvider.ReadAllText(filePath, Encoding.UTF8);
if (string.IsNullOrEmpty(text))
{
return(new DataSettings());
}
//get data settings from the JSON file
Singleton <DataSettings> .Instance = JsonConvert.DeserializeObject <DataSettings>(text);
return(Singleton <DataSettings> .Instance);
}