How can I determine if byte array contains serialized data #208
Description
I want to write a method that will return a Boolean indicating if a given byte array contains data that was produced by LZ4MessagePackSerializer.Typeless.Serialize.
Is there some sort of "header" in the resulting byte array that I could check? If not, can you suggest some other way?
Here's my first attempt but unfortunately it doesn't produce the expected result:
private static bool ContainsSerializedData(byte[] content)
{
return MessagePackBinary.GetMessagePackType(content, 0) == MessagePackType.Extension;
}
static void Main()
{
var content = LZ4MessagePackSerializer.Typeless.Serialize(new MyMessage { });
Console.WriteLine("Byte array contains serialized data: {0}", ContainsSerializedData(content));
content = LZ4MessagePackSerializer.Typeless.Serialize(123);
Console.WriteLine("Byte array contains serialized data: {0}", ContainsSerializedData(content));
content = LZ4MessagePackSerializer.Typeless.Serialize(new DateTime(2018, 2, 11));
Console.WriteLine("Byte array contains serialized data: {0}", ContainsSerializedData(content));
content = LZ4MessagePackSerializer.Typeless.Serialize("Hello World");
Console.WriteLine("Byte array contains serialized data: {0}", ContainsSerializedData(content));
content = Encoding.UTF8.GetBytes("Hello World");
Console.WriteLine("Byte array contains serialized data: {0}", ContainsSerializedData(content));
}The expected result is true for the first four scenarios and false for the fifth scenario but the result is:
Byte array contains serialized data: True
Byte array contains serialized data: False
Byte array contains serialized data: True
Byte array contains serialized data: False
Byte array contains serialized data: False