ElementIterator iohElements = DomUtil.getChildren(el, ELEMENT_IOHANDLER, null);
while (iohElements.hasNext()) {
Element iohEl = iohElements.nextElement();
inst = buildClassFromConfig(iohEl);
if (inst != null && inst instanceof IOHandler) {
IOHandler handler = (IOHandler) inst;
setParameters(handler, iohEl);
ioManager.addIOHandler(handler);
} else {
log.warn("Not a valid IOHandler : " + getClassName(iohEl));
}