[Quickfix-developers] Efficient Message creation

[Mike P. <mic...@ya...>]

If I have a raw FIX string what is the most efficient method for creating a Message object out of it using the Java API?

The way I was doing it was this:

// Have to do this to get the 'BeginString' and 'MsgType' fields
// I guess I could do some manual field checking/lookup
Message fixmsg = new Message(fixmsgstr);
String beginString = fixmsg.getHeader().getString(BeginString.FIELD);
String fixMsgType = fixmsg.getHeader().getString(MsgType.FIELD);

// m_messageFactory is an instance of the DefaultMessageFactory
// This returns the FIX version specific message
m_messageFactory.create(beginString, fixMsgType);
fixmsg.initFromString(fixmsgstr, true);


The problem with the way I doing it is that the raw FIX message string gets parsed twice.  I need the FIX version specific Message object so when I call the crack() method the MessageCracker() can determine the version specific method to call.  I'm getting a ClassCastException right now.

Is there another way to do this? 'This' being create a version specific Message object from a raw message string.

Thanks,
Mike



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