public override EventPackageInfo ResolvePackage(IBufferStream bufferStream)
{
//log4j.Debug("bufferStream.Length: " + bufferStream.Length);
//log4j.Debug("headerSize: " + this.HeaderSize);
//log4j.Debug("bodySize: " + ((int)bufferStream.Length - this.HeaderSize));
//int key1 = bufferStream.Skip(4).ReadByte();
//int key2 = bufferStream.ReadByte();
//int key = key2 << 8 | key1;
//int subKey1 = bufferStream.ReadByte();
//int subKey2 = bufferStream.ReadByte();
//int subKey = subKey2 << 8 | subKey1;
EventPackageInfo ev = new EventPackageInfo(0, 0, "");
try
{
int key = bufferStream.Skip(4).ReadUInt16(true); // why read little indian??
int subKey = bufferStream.ReadUInt16(true);
//log4j.Debug(string.Format("key: {0}, subKey: {1}", key, subKey));
string body = bufferStream.ReadString((int)bufferStream.Length - this.HeaderSize, Encoding.UTF8);
ev = new EventPackageInfo(key, subKey, body);
}
catch (Exception ex)
{
log4j.Error("ResolvePackage: ", ex);
}
return(ev);
}
protected override int GetBodyLengthFromHeader(IBufferStream bufferStream, int length)
{
int val1 = bufferStream.ReadUInt16(true);
int dataSize = bufferStream.ReadUInt16(true);
// int val3 = bufferStream.ReadUInt16(true);
// int val4 = bufferStream.ReadUInt16(true);
dataSize = dataSize - this.HeaderSize;
//log4j.Debug("val: " + val);
//if (dataSize > 2000 || val1 != 17408)
//{
// //log4j.Debug("val > 2000 : " + val);
// log4j.Debug("incorrect header 17408 or size > 2000");
// dataSize = 0;
//}
return(dataSize);
}
protected override int GetBodyLengthFromHeader(IBufferStream bufferStream, int length)
{
bufferStream.Skip(4);
return(bufferStream.ReadUInt16());
}
private int GetPayloadLength(IBufferStream bufferStream, int length)
{
if (length == 2)
{
var flag = bufferStream.ReadByte();
m_Final = (FINAL_FLAG & flag) == flag;
m_OpCode = (sbyte)(flag & 0x08);
// one byte playload length
var playloadLen = (int)bufferStream.ReadByte();
//the highest bit is mask indicator
m_Masked = playloadLen > 128;
// remove the mask byte
playloadLen = playloadLen % 128;
// no extend playload length
if (playloadLen < 126)
{
if (!m_Masked)
{
return(playloadLen);
}
// masking-key: 4 bytes
return(playloadLen + 4);
}
// playload length takes 2 bytes
if (playloadLen == 126)
{
ResetSize(4);
return(-1);
}
else// playload length takes 8 bytes
{
ResetSize(10);
return(-1);
}
}
else if (length == 4)
{
bufferStream.Skip(2);
// 2 bytes
var playloadLen = bufferStream.ReadUInt16();
if (m_Masked) // add mask key's length
{
playloadLen += 4;
}
return(playloadLen);
}
else // length = 8
{
bufferStream.Skip(2);
// 8 bytes
var playloadLen = bufferStream.ReadUInt64();
if (m_Masked) // add mask key's length
{
playloadLen += 4;
}
return((int)playloadLen);
}
}
protected override int GetBodyLengthFromHeader(IBufferStream bufferStream, int length)
{
int bodyLength = bufferStream.ReadUInt16();
return(bodyLength);
}