/// <summary>
/// Serializes the object graph using a Binary formatter, and then encodes the resulting bytes into a Base64 string that will be safe for POP attachments or Xml node data.
/// </summary>
/// <param name="value">The object graph to serialize. NOTE: The object must support serialization via the SerializableAttribute and optionally support the ISerializable interface.</param>
/// <param name="t">The Type of the object, needed to ensure serialization is supported</param>
/// <param name="base64String">A reference to a string which will receive the encoded result of the operation</param>
/// <returns></returns>
public static bool Base64Encode(object instance, Type t, out string base64String)
{
base64String = null;
/// if the type supports serialization
if (EncodingEngine.SupportsISerializableInterface(t) || t.IsSerializable)
{
BinaryFormatter bf = new BinaryFormatter();
using (MemoryStream ms = new MemoryStream())
{
/// serialize the object graph
bf.Serialize(ms, instance);
/// retrieve the raw bytes from the serialization
byte[] bytes = ms.GetBuffer();
/// encode them to a base64 string
return((base64String = System.Convert.ToBase64String(bytes)) != null);
}
}
return(false);
}
/// <summary>
/// Deserializes an object assuming that the string contains the base64 encoded data for the object
/// </summary>
/// <param name="option"></param>
/// <param name="buffer"></param>
/// <returns></returns>
private object GetSerializedValue(XmlConfigurationOption option, string buffer)
{
object instance = null;
try
{
// try and base 64 decode the string
if (EncodingEngine.Base64Decode(buffer, out instance))
{
return(instance);
}
}
catch (Exception ex)
{
this.OnCannotReadValue(this, new XmlConfigurationReaderEventArgs(ex, option, buffer));
// Debug.WriteLine(ex);
}
return(instance);
}
/// <summary>
/// Gets the value to write using a BinaryFormatter to serialize the Object.Value property.
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
private string GetSerializedValue(XmlConfigurationOption option)
{
string buffer = null;
try
{
Type t = Type.GetType(option.ValueAssemblyQualifiedName);
if (t != null)
{
if (EncodingEngine.Base64Encode(option.Value, t, out buffer))
{
return(buffer);
}
}
}
catch (System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
this.OnCannotWriteValue(this, new XmlConfigurationWriterEventArgs(systemException, option));
}
return(buffer);
}
