public int next() throws OMException {
try {
// We need a loop here because we may decide to skip an event
while (true) {
if (done) {
throw new OMException();
}
createDocumentIfNecessary();
int token = parserNext();
if (!cache) {
return token;
}
// The current token should be the same as the
// one just obtained. This bit of code is used to
// detect invalid parser state.
if (doTrace) {
int currentParserToken = parser.getEventType();
if (currentParserToken != token) {
log.debug("WARNING: The current state of the parser is not equal to the " +
"state just received from the parser. The current state in the paser is " +
XMLEventUtils.getEventTypeString(currentParserToken) + " the state just received is " +
XMLEventUtils.getEventTypeString(token));
/*
throw new OMException("The current token " + token +
" does not match the current event " +
"reported by the parser token. The parser did not update its state correctly. " +
"The parser is " + parser);
*/
}
}
// Now log the current state of the parser
if (doTrace) {
logParserState();
}
switch (token) {
case XMLStreamConstants.START_ELEMENT: {
OMNode node = createNextOMElement();
// If the node was created by a custom builder, then it will be complete;
// in this case, the target doesn't change
if (!node.isComplete()) {
target = (OMContainerEx)node;
}
break;
}
case XMLStreamConstants.CHARACTERS:
createOMText(XMLStreamConstants.CHARACTERS);
break;
case XMLStreamConstants.CDATA:
createOMText(XMLStreamConstants.CDATA);
break;
case XMLStreamConstants.END_ELEMENT:
endElement();
break;
case XMLStreamConstants.END_DOCUMENT:
done = true;
((OMContainerEx) this.document).setComplete(true);
target = null;
break;
case XMLStreamConstants.SPACE:
try {
OMNode node = createOMText(XMLStreamConstants.SPACE);
if (node == null) {
continue;
}
} catch (OMHierarchyException ex) {
// The OM implementation doesn't allow text nodes at the current
// position in the tree. Since it is only whitespace, we can safely
// skip this event.
continue;
}
break;
case XMLStreamConstants.COMMENT:
createComment();
break;
case XMLStreamConstants.DTD:
createDTD();
break;
case XMLStreamConstants.PROCESSING_INSTRUCTION:
createPI();
break;
case XMLStreamConstants.ENTITY_REFERENCE:
createEntityReference();
break;
default :
throw new OMException();
}
return token;
}
} catch (XMLStreamException e) {
throw new OMException(e);
}
}