/// <summary>
/// Save settings to a file
/// </summary>
/// <param name="settings">Data settings</param>
public virtual void SaveSettings(DataSettings settings)
{
Singleton <DataSettings> .Instance = settings ?? throw new ArgumentNullException(nameof(settings));
var filePath = CommonHelper.MapPath(DataSettingsFilePath);
//create file if not exists
if (!File.Exists(filePath))
{
//we use 'using' to close the file after it's created
using (File.Create(filePath)) { }
}
//save data settings to the file
var text = JsonConvert.SerializeObject(Singleton <DataSettings> .Instance, Formatting.Indented);
File.WriteAllText(filePath, text);
}
/// <summary>
/// Load settings
/// </summary>
/// <param name="filePath">File path; pass null to use default settings file path</param>
/// <param name="reloadSettings">Indicates whether to reload data, if they already loaded</param>
/// <returns>Data settings</returns>
public virtual DataSettings LoadSettings(string filePath = null, bool reloadSettings = false)
{
if (!reloadSettings && Singleton <DataSettings> .Instance != null)
{
return(Singleton <DataSettings> .Instance);
}
filePath = filePath ?? CommonHelper.MapPath(DataSettingsFilePath);
//check whether file exists
if (!File.Exists(filePath))
{
//if not, try to parse the file that was used in previous nopCommerce versions
filePath = CommonHelper.MapPath(ObsoleteDataSettingsFilePath);
if (!File.Exists(filePath))
{
return(new DataSettings());
}
//get data settings from the old txt file
var dataSettings = new DataSettings();
using (var reader = new StringReader(File.ReadAllText(filePath)))
{
var settingsLine = string.Empty;
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 = value;
continue;
case "DataConnectionString":
dataSettings.DataConnectionString = value;
continue;
default:
dataSettings.RawDataSettings.Add(key, value);
continue;
}
}
}
//save data settings to the new file
SaveSettings(dataSettings);
//and delete the old one
File.Delete(filePath);
Singleton <DataSettings> .Instance = dataSettings;
return(Singleton <DataSettings> .Instance);
}
var text = File.ReadAllText(filePath);
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);
}