public static byte[] Encode(RiakMessage message)
{
// Create array to hold encoded message
byte[] encodedMessage = new byte[message.Data.Length + RiakPBIndices.MsgHeader_Length];
// Convert Message Body Length to bytes, adding 1 for Message Code
byte[] msgLength = BitConverter.GetBytes((UInt32)message.Data.Length + 1);
// Reverse messag elength array because we are assuming Little Endian here, Riak is expecting Big Endian encoding
Array.Reverse(msgLength);
// Copy Length, MsgCode, then Message
Array.Copy(msgLength, encodedMessage, RiakPBIndices.MsgLength_Length);
encodedMessage[RiakPBIndices.MsgCode_Index] = message.Code;
Array.ConstrainedCopy(message.Data, 0, encodedMessage, RiakPBIndices.MsgBody_StartIndex, message.Data.Length);
return(encodedMessage);
}
public static RiakMessage Decode(byte[] response, int messageLength)
{
// Copy out the 4 bytes that tell us how long the message is.
byte[] pbResponseLengthArr = new byte[RiakPBIndices.MsgLength_Length];
Array.Copy(response, pbResponseLengthArr, 4);
// Reverse because we assume Little Endian HW, and Big Endian message ordering
Array.Reverse(pbResponseLengthArr);
// Convert 4 bytes to UInt32, subtract 1 for Message Code byte
UInt32 messageBodyLength = BitConverter.ToUInt32(pbResponseLengthArr, 0) - 1;
// Copy out message body
byte[] messageBody = new byte[messageBodyLength];
Array.ConstrainedCopy(response, RiakPBIndices.MsgBody_StartIndex, messageBody, 0, (int)messageBodyLength); // I hope we never had a 2GB message, casting to int
// Create container object and return it
var message = new RiakMessage(response[RiakPBIndices.MsgCode_Index], messageBody);
return(message);
}
