/// <summary>
/// 反序列化命令协议
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static ICommand Deserialize(byte[] data)
{
MsgHead msgHead = new MsgHead {
};
var headLen = Marshal.SizeOf(msgHead);
byte[] headByte = new byte[headLen];
//先把头取出来
Array.Copy(data, 0, headByte, 0, headLen);
//把头给去掉
byte[] commandByte = new byte[data.Length - headLen];
//再把command取出来
Array.Copy(data, headLen, commandByte, 0, commandByte.Length);
//判断是执行那个命令
msgHead = SimpledbMessageSwitch.BytesToStruct <MsgHead>(headByte);
Method method = (Method)msgHead.Method;
ICommand command = null;
switch (method)
{
case Method.CreateTable:
command = SimpledbMessageSwitch.BytesToCommand <CreatTableCommand>(commandByte);
break;
case Method.Delete:
command = SimpledbMessageSwitch.BytesToCommand <DeleteCommand>(commandByte);
break;
case Method.DeleteTable:
command = SimpledbMessageSwitch.BytesToCommand <DeleteTableCommand>(commandByte);
break;
case Method.PutDirect:
command = SimpledbMessageSwitch.BytesToCommand <PutDirectCommand>(commandByte);
break;
case Method.PutUint64:
command = SimpledbMessageSwitch.BytesToCommand <PutUInt64Command>(commandByte);
break;
case Method.GetDirect:
command = SimpledbMessageSwitch.BytesToCommand <GetDirectCommand>(commandByte);
break;
case Method.GetUint64:
command = SimpledbMessageSwitch.BytesToCommand <GetUint64Command>(commandByte);
break;
}
return(command);
}
/// <summary>
/// 序列化命令协议
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="method"></param>
/// <param name="command"></param>
/// <returns></returns>
public static byte[] Serialize <T>(Method method, T command) where T : ICommand
{
MsgHead head = new MsgHead {
Version = 1, Method = (ushort)method
};
var data = SimpledbMessageSwitch.CommandToBytes <T>(command);
head.Len = data.Length;
var msgHead = SimpledbMessageSwitch.StructToBytes <MsgHead>(head);
byte[] retData = new byte[msgHead.Length + data.Length];
//先放头
Array.Copy(msgHead, 0, retData, 0, msgHead.Length);
//再放command
Array.Copy(data, 0, retData, msgHead.Length, data.Length);
return(retData);
}
