/// <summary>
/// If the text parses to a known type, etc, returns true. otherwise false.
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
private bool IsCompliant(string text)
{
bool rv = false;
var list = LengthEncoder.LengthDecodeList(text);
if (list == null)
{
return(rv);
}
if (list.Count != 2)
{
return(rv);
}
//pull the type out
string typeName = list[0];
var type = TheTypeLocator.Instance.Locator.FindAssemblyQualifiedType(typeName);
if (type == null)
{
return(rv);
}
if (!typeof(IStringable).IsAssignableFrom(type))
{
return(rv);
}
rv = true;
return(rv);
}
/// <summary>
/// dehydrates hydrateable into the type prefix format
/// </summary>
/// <param name="hyd"></param>
/// <returns></returns>
public string Dehydrate(IStringable hyd)
{
if (hyd == null)
{
return(null);
}
string data = hyd.Dehydrate();
return(LengthEncoder.LengthEncodeList(hyd.GetType().AssemblyQualifiedName, data));
}
/// <summary>
/// Reconstitutes an object from the dehydrated, type-prefixed state, using the Hydrate mechanism
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public IRehydrating Hydrate(string text)
{
if (string.IsNullOrEmpty(text))
{
return(null);
}
if (!IsCompliant(text))
{
throw new InvalidOperationException("non compliant encoding");
}
var list = LengthEncoder.LengthDecodeList(text);
string typeName = list[0];
var type = TheTypeLocator.Instance.Locator.FindAssemblyQualifiedType(typeName);
Condition.Requires(type).IsNotNull();
var obj = ReflectionUtil.CreateUninitializedObject(type);
IRehydrating hyd = obj as IRehydrating;
hyd.Hydrate(list[1]);
return(hyd);
}
