Is there a way to fetch the incoming/outgoing/heartbeat messages in the code? - quickfixj

Question

I am using QuickFIX/J (1.6.4). I can see all the messages segregated very properly (incoming/outgoing/event)
<20180504-07:32:14, FIX.4.2:CLIENT2/SUB-> , event> (Session FIX.4.2:CLIENT2/SUB-> schedule is daily, 00:00:00-UTC - 00:00:00-UTC) <20180504-07:32:14, FIX.4.2:CLIENT2/SUB-> , event> (Created session: FIX.4.2:CLIENT2/SUB-> ) <20180504-07:32:15, FIX.4.2:CLIENT2/SUB-> , event> (Configured socket addresses for session: [/x.x.x.x:xxxx]) <20180504-07:32:15, FIX.4.2:CLIENT2/SUB-> , event> (MINA session created: local=/y.y.y.y:yyyy, class org.apache.mina.transport.socket.nio.NioSocketSession, remote=/x.x.x.x:xxxx) <20180504-07:32:16, FIX.4.2:CLIENT2/SUB-> , outgoing> (8=FIX.4.29=7935=A34=149=CLIENT252=20180504-07:32:16.386) <20180504-07:32:16, FIX.4.2:CLIENT2/SUB-> , event> (Initiated logon request) <20180504-07:32:16, FIX.4.2:CLIENT2/SUB-> , incoming> (8=FIX.4.29=8035=A34=1) <20180504-07:32:16, FIX.4.2:CLIENT2/SUB-> , event> (Logon contains ResetSeqNumFlag=Y, resetting sequence numbers to 1) <20180504-07:32:16, FIX.4.2:CLIENT2/SUB-> , event> (Received logon)
However, I am unable to find a way to fetch these segregated messages as-is in my code.
PS: I dig deeper, and reached ScreenLogFactory.java which ultimately seems to log what I see on console logs. But could not find a way to extract those incoming/outgoing messages in my code.
Edit1:
How can I capture session level messages?

Answer 1

To start your SocketInitiator, you had to pass it an instance of quickfix.Application. In your implementation, you can peek heartbeats in the toAdmin and fromAdmin implementation.
class YourFixApplication implements Application {
#Override
public void fromAdmin( Message message, SessionID sessionID ) {
MsgType msgType;
try {
msgType = (MsgType) message.getHeader( ).getField( new MsgType( ) );
}
catch( FieldNotFound e ) {
e.printStackTrace();
return;
}
if( msgType.valueEquals( MsgType.HEARTBEAT ) ) {
System.out.println( ">>> Heartbeat <<<" );
}
}
// same deal with toAdmin implementation
// ...
}

Answer 2

TT.'s answer is correct, though some semantics I needed to change for it to work for me:
public void ToAdmin(Message message, SessionID sessionID)
{
msgType = (MsgType).message.Header.GetField(new MsgType());
catch(FieldNotFoundException e)
{
//error message
return;
}
if(msgType.Obj.Equals(MsgType.HEARTBEAT))
{
// print out wherever or do whatever with the heartbeat msg
}
}