re: Stopping XML parsing in mid-stream?

Michael Chang writes:

 > I've got a problem.  Here's the situation:  My application uses an 
 > SSLSocket to read XML data from a server that sends a new XML document (?) 
 > once per second.  By "XML document," I mean that an entirely
 > new "<?xml version='1.0' ?><nodes>.....</nodes>" chunk is sent to my 
 > client application once per second.  The problem that I'm having is that, 
 > when I hand my InputStream object to my SAXParser.parse() method, parse() 
 > never returns.  The only way I can get it to return is if I tell the 
 > server to send only one chunk and then close the connection.  From this, I 
 > assume that parse() returns because it has seen an EOF (End Of File), 
 > though I might be wrong.
 > 
 > So, essentially, I need a way to get parse() to return after it has seen a 
 > closing root node.

Throw an exception -- that's the way SAX was designed to work:

  public class StopParsingException extends SAXException
  {
    ...
  }

Exceptions are useful for much more than just error conditions.


All the best,


David

-- 
David Megginson, [email protected], http://www.megginson.com/


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