public static Packet deencapsulatePacket(ByteBuf buffer) throws IOException {
String clazzName = (String) Packet.decodePrimitive(buffer);
try {
if (clazzName == null) throw new IOException("No class specified!");
Class<? extends Packet> clazz = (Class<? extends Packet>) Class.forName(clazzName);
Packet packet = clazz.newInstance();
packet.readPacket(buffer.slice());
return packet;
} catch (Exception ex) {
if (ex instanceof IOException) throw (IOException) ex;
throw new IOException("Decoding exception", ex);
}
}
/**
* Instruct the client that the given session has received a message with size # of bytes.
*
* @param session session to notify
* @param msgId message number available
* @param size size of the message
*/
public void messageAvailable(
I2PSession session, int msgId, long size, int proto, int fromPort, int toPort) {
byte data[] = null;
try {
data = session.receiveMessage(msgId);
} catch (I2PSessionException ise) {
_context.statManager().addRateData("stream.packetReceiveFailure", 1);
if (_log.shouldLog(Log.WARN)) _log.warn("Error receiving the message", ise);
return;
}
if (data == null) return;
Packet packet = new Packet();
try {
packet.readPacket(data, 0, data.length);
packet.setRemotePort(fromPort);
packet.setLocalPort(toPort);
_manager.getPacketHandler().receivePacket(packet);
} catch (IllegalArgumentException iae) {
_context.statManager().addRateData("stream.packetReceiveFailure", 1);
if (_log.shouldLog(Log.WARN)) _log.warn("Received an invalid packet", iae);
}
}
