protected override int GetBodyLengthFromHeader(IBufferStream bufferStream, int length)
{
bufferStream.Skip(FixedHeaderTryConst.KEYSIZE);
byte[] bodySizeBuf = new byte[FixedHeaderTryConst.BODYSIZE_LEN];
//注意 Read方法的第二个参数，目标数组的偏移
bufferStream.Read(bodySizeBuf, 0, FixedHeaderTryConst.BODYSIZE_LEN);
return(PackageBodyOperator.GetBodyLen(bodySizeBuf));
//throw new NotImplementedException();
}
public override StringPackageInfo ResolvePackage(IBufferStream bufferStream)
{
//throw new NotImplementedException();
string key = bufferStream.ReadString(FixedHeaderTryConst.KEYSIZE, Encoding.UTF8);
byte[] buffer = new byte[FixedHeaderTryConst.BODYSIZE_LEN];
bufferStream.Read(buffer, 0, FixedHeaderTryConst.BODYSIZE_LEN);
int bodySize = PackageBodyOperator.GetBodyLen(buffer);
string body = bufferStream.ReadString(bodySize, Encoding.UTF8);
return(new StringPackageInfo(key, body, null));
}
public static ArraySegment <byte> CreatePackage(string key, string body)
{
byte[] buffer = new byte[FixedHeaderTryConst.HEARSIZE + body.Length];
Buffer.BlockCopy(Encoding.UTF8.GetBytes(key), 0, buffer, 0, key.Length);
/*
* buffer[FixedHeaderTryConst.KEYSIZE] = (byte)(body.Length / ConstValues._16MaxValue);
* buffer[FixedHeaderTryConst.KEYSIZE + 1] = (byte)((body.Length % ConstValues._16MaxValue) / ConstValues._8MaxValue);
* buffer[FixedHeaderTryConst.KEYSIZE + 2] = (byte)(body.Length % ConstValues._8MaxValue);
*/
PackageBodyOperator.FillBodyLen(buffer, FixedHeaderTryConst.KEYSIZE, body.Length);
Buffer.BlockCopy(Encoding.UTF8.GetBytes(body), 0, buffer, FixedHeaderTryConst.HEARSIZE, body.Length);
return(new ArraySegment <byte>(buffer));
}
//offset = 0
protected override int GetBodyLengthFromHeader(byte[] header, int offset, int length)
{
return(PackageBodyOperator.GetBodyLen(header, offset + FixedHeaderTryConst.KEYSIZE));
}
