I'm using Mina 2.0, the following code is taken from my
doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out )
method in my decoder which extends CumulativeProtocolDecoder
Concerning my protocol, a message contains its type in the second byte
(position 1 in an array)
// length is stored in byte 3 to 6
int length = in.getInt(2);
byte[] foo = in.array();
for (int u = 0; u<foo.length;u++){
System.out.print(foo[u]+" ");
}
System.out.println();
// all bytes received to decode message
byte[] msg = new byte[length];
int readtype = 0;
// read type of message
int designatedtype = in.get(1);
System.out.println("designated type: "+designatedtype);
for (int i = 0; i < length; i++) {
byte b = in.get();
System.out.print(b+ " ");
if (i ==1){
// type is second byte in a message
readtype = b;
}
msg[i] = (byte) b;
}
System.out.println();
System.out.println("read type: "+readtype);
byte[] current = in.array().clone();
for (int u = 0; u<current.length;u++){
System.out.print(current[u]+" ");
}
System.out.println();
This code is working perfectly fine in usual cases. However, when I
start my application in Eclipse, let it run for a while (it is
exchanging messages perfectly) stop it (I interrupt the execution) and
then let it run again, I get the following output:
4 61 0 0 0 10 0 0 9 19 4 31 0 0 0 18 ...
designated type: 61
1 31 0 8 0 0 0 0 4 30
read type: 31
4 61 0 0 0 10 0 0 9 19 4 31 0 0 0 18 ...
Obviously, the expected type is 61. But reading the buffer gives 31. It
seems that Buffer and underlying array are not in sync as reading twice
from the buffer gives 31 for the second byte.
Is this a bug in the Mina implementation? Am I doing something wrong
decoding the message (the system out statements would of course normally
not be there. So I would call in.get() length times.)?
thanks.
++ Basil
