public void Change_Database_Setting_Properties()
{
string info1 = "DataProvider changed";
string info2 = "DataConnectionString changed";
string result = String.Empty;
DatabaseSettings settings = new DatabaseSettings();
settings.PropertyChanged += (s, e) =>
{
if (e.PropertyName ==
ReflectionUtility.GetPropertyName(() => ((DatabaseSettings)s).DataProvider))
{
result = info1;
}
else if(e.PropertyName ==
ReflectionUtility.GetPropertyName(() => ((DatabaseSettings)s).DataConnectionString))
{
result = info2;
}
};
settings.DataProvider = "Set Provider";
Console.Out.WriteLine(settings.DataProvider);
Assert.AreEqual(info1, result);
settings.DataConnectionString = "Set Connection String";
Console.Out.WriteLine(settings.DataConnectionString);
Assert.AreEqual(info2, result);
}
protected DataProviderManagerBase(DatabaseSettings settings)
{
AspectF.Define.MustBeNonNull(settings).Do(() =>
{
this.Settings = settings;
});
}
public virtual void SaveSettings(DatabaseSettings settings)
{
if (settings == null)
throw new ArgumentNullException("settings");
string filePath = MapToPhysicalPath(FilePath);
if (!File.Exists(filePath))
{
using (File.Create(filePath))
{
//we use 'using' to close the file after it's created
}
}
var text = ToFormatedString(settings);
File.WriteAllText(filePath, text);
}
public NoSqlDataProviderManager(DatabaseSettings settings)
: base(settings)
{
}
protected virtual string ToFormatedString(DatabaseSettings settings)
{
if (settings == null)
return "";
return string.Format("DataProvider: {0}{2}DataConnectionString: {1}{2}",
settings.DataProvider,
settings.DataConnectionString,
Environment.NewLine
);
}
/// <summary>
/// Convert setting file to DatabaseSetting object
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
protected virtual DatabaseSettings ParseSettings(string text)
{
DatabaseSettings settings = new DatabaseSettings();
if (String.IsNullOrEmpty(text))
return settings;
var items = new List<string>();
using (var reader = new StringReader(text))
{
string str;
while ((str = reader.ReadLine()) != null)
items.Add(str);
}
foreach (var item in items)
{
var keyPair = item.Split(Separator);
if (keyPair.Count() == 0)
continue;
if (keyPair.Count() != 2)
throw new CommonException("Database setting is not correct.");
string key = keyPair[0];
string value = keyPair[1];
DatabaseEnum keyEnum;
if (!Enum.TryParse(key, true, out keyEnum))
keyEnum = DatabaseEnum.Unknown;
switch (keyEnum) // only get last data provider and data connection string
{
case DatabaseEnum.DataProvider:
settings.DataProvider = value;
break;
case DatabaseEnum.DataConnectionString:
settings.DataConnectionString = value;
break;
default:
settings.UnknownItems.Add(key, value);
break;
}
}
return settings;
}