public IDataSourceAccesser GetAccesserForSource(AccesserType source)
{
if (Accessers.Count == 0)
{
Type interfaceType = typeof(IDataSourceAccesser);
Type attributeType = typeof(DataSourceAccesserAttribute);
var types = AppDomain.CurrentDomain.GetAssemblies().SelectMany(assembly => assembly.GetTypes())
.Where(t => interfaceType.IsAssignableFrom(t) && !t.IsInterface).ToArray();
var attributes = types.SelectMany(type =>
type.GetCustomAttributes(attributeType, false)).ToArray();
for (int i = 0; i < types.Count(); i++)
{
var attribute = (DataSourceAccesserAttribute)attributes[i];
var accesser = (IDataSourceAccesser)Activator.CreateInstance(types[i]);
Accessers.Add(attribute.AccesserType, accesser);
}
}
return(Accessers[source]);
}
public UserProcessor(AccesserType accesserType)
{
DataSourceAccesser = DataSourceAccesserFactory.Instance.GetAccesserForSource(accesserType);
}
public DataSourceAccesserAttribute(AccesserType accesserType)
{
AccesserType = accesserType;
}