void onMessageExchange(MessageExhange exchange) {

if (exchange.getStatus() == ExchangeStatus.ACTIVE) {
   // copy content
   Source content = exchange.getMessage("in").getContent();
   content = transform(content);
   exchange.getMessage("out").setContent(content);
   
   Map headers = exchange.getMessage("in").getProperty(JbiConstants.SOAP_HEADERS);
   // do whatever you want
   exchange.getMessage("out").setProperty(headers);
   channel.send(exchange);


}