/// <summary>
/// parse
/// </summary>
/// <param name="connection"></param>
/// <param name="buffer"></param>
/// <param name="maxMessageSize"></param>
/// <param name="recvivedMessageInfo"></param>
/// <param name="readlength"></param>
/// <returns></returns>
/// <exception cref="BadProtocolException">bad thrift protocol</exception>
public bool TryParse(IConnection connection, ArraySegment <byte> buffer, int maxMessageSize, out IRecvivedMessageInfo <TThriftMessage> recvivedMessageInfo, out int readlength)
{
recvivedMessageInfo = null;
readlength = 0;
if (buffer.Count < 4)
{
return(false);
}
//获取message length
var messageLength = Utils.NetworkBitConverter.ToInt32(buffer.Array, buffer.Offset);
if (messageLength < 10)
{
throw new BadProtocolException("bad thrift protocol");
}
if (messageLength > maxMessageSize)
{
throw new BadProtocolException("message is too long");
}
readlength = messageLength + 4;
if (buffer.Count < readlength)
{
readlength = 0;
return(false);
}
bool isSync = BitConverter.ToBoolean(buffer.Array, buffer.Offset + 4);
int seqId = Utils.NetworkBitConverter.ToInt32(buffer.Array, buffer.Offset + 5);
var payload = new byte[messageLength - 6];
Buffer.BlockCopy(buffer.Array, buffer.Offset + 10, payload, 0, payload.Length);
var message = CreateThriftMessage(payload);
recvivedMessageInfo = new RecvivedMessageInfo <TThriftMessage>(message, isSync, seqId);
return(true);
}
/// <summary>
/// parse
/// </summary>
/// <param name="connection"></param>
/// <param name="buffer"></param>
/// <param name="maxMessageSize"></param>
/// <param name="recvMessageInfo"></param>
/// <param name="readlength"></param>
/// <returns></returns>
/// <exception cref="BadProtocolException">bad command line protocol</exception>
public bool TryParse(IConnection connection, ArraySegment <byte> buffer, int maxMessageSize, out IRecvivedMessageInfo <CommandLineMessage> recvMessageInfo, out int readlength)
{
recvMessageInfo = null;
readlength = 0;
if (buffer.Count < 2)
{
return(false);
}
//查找\r\n标记符
for (int i = buffer.Offset, len = buffer.Offset + buffer.Count; i < len; i++)
{
if (buffer.Array[i] == 13 && i + 1 < len && buffer.Array[i + 1] == 10)
{
readlength = i + 2 - buffer.Offset;
if (readlength == 2)
{
recvMessageInfo = new RecvivedMessageInfo <CommandLineMessage>(new CommandLineMessage(string.Empty), false); return(true);
}
if (readlength > maxMessageSize)
{
throw new BadProtocolException("message is too long");
}
string text = Encoding.UTF8.GetString(buffer.Array, buffer.Offset, readlength - 2);
var array = text.Split(SPLITER, StringSplitOptions.RemoveEmptyEntries);
var queue = new Queue <string>(array);
recvMessageInfo = new RecvivedMessageInfo <CommandLineMessage>(ParseMessageText(queue, out var isSync, out int seqId), isSync, seqId);
return(true);
}
}
readlength = 0;
return(false);
}
