/// <summary>
/// Init method is called in the constructor
/// Calling Init functino separatly is not recommended
/// </summary>
public void Init()
{
if (File.Exists(_jsonFilePath))
{
try
{
_data = LoadDefaultValueModelFromConfigFile(_jsonFilePath);
}
catch (Exception ex)
{
throw new InvalidDataException("JSON provider initialize fail. The provided json file is not valid." + ex.StackTrace);
}
}
else
{
if (_createNewConfigFileIsNotExist)
{
var noDataModel = new WQDefaultValueModel();
var saveSuccess = this.SaveDefaultValueConfiguration(noDataModel);
if (!saveSuccess)
{
throw new InvalidDataException("Save JSON provider data fail, please contact the EIS group");
}
_data = noDataModel;
}
else
{
throw new FileNotFoundException("JSON provider initialize fail. The provided path " + _jsonFilePath + " could not be found.");
}
}
}
public bool SaveDefaultValueConfiguration(WQDefaultValueModel data)
{
_data = data;
var fileMode = File.Exists(_jsonFilePath) ? FileMode.Open : FileMode.CreateNew;
try
{
using (FileStream fs = File.Open(_jsonFilePath, fileMode))
using (StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.UTF8))
using (JsonWriter jw = new JsonTextWriter(sw))
{
jw.Formatting = Formatting.Indented;
JsonSerializer serializer = new JsonSerializer();
serializer.Serialize(jw, data);
}
}
catch (Exception ex)
{
return(false);
}
return(true);
}
private WQDefaultValueModel LoadDefaultValueModelFromConfigFile(string jsonFilePath)
{
using (FileStream fs = File.Open(jsonFilePath, FileMode.Open))
{
using (StreamReader reader = new StreamReader(fs, System.Text.Encoding.UTF8))
{
using (JsonReader jr = new JsonTextReader(reader))
{
JsonSerializer serializer = new JsonSerializer();
try
{
return(serializer.Deserialize <WQDefaultValueModel>(jr));
}
catch (Exception ex)
{
if (_wayToLoadConfigFile == WayToLoadConfigFile.ThrowExceptionIfLoadFail)
{
throw ex;
}
else if (_wayToLoadConfigFile == WayToLoadConfigFile.CreateNewConfigFileIfLoadFail)
{
var noDataModel = new WQDefaultValueModel();
var saveSuccess = this.SaveDefaultValueConfiguration(noDataModel);
if (!saveSuccess)
{
throw new InvalidDataException("Save JSON provider data fail, please contact the EIS group");
}
return(noDataModel);
}
else
{
throw new ArgumentException(_wayToLoadConfigFile.ToString() + " is not a valid way to load config file.");
}
}
}
}
}
}
