How to stop parsing xml document with SAX at any time?

Question

I parse a big xml document with Sax, I want to stop parsing the document when some condition establish? How to do?

Answer 1

Create a specialization of a SAXException and throw it (you don't have to create your own specialization but it means you can specifically catch it yourself and treat other SAXExceptions as actual errors).

public class MySAXTerminatorException extends SAXException {
    ...
}

public void startElement (String namespaceUri, String localName,
                           String qualifiedName, Attributes attributes)
                        throws SAXException {
    if (someConditionOrOther) {
        throw new MySAXTerminatorException();
    }
    ...
}

Answer 2

I am not aware of a mechanism to abort SAX parsing other than the exception throwing technique outlined by Tom. An alternative is to switch to using the StAX parser (see pull vs push).

Answer 3

i tried that and evey thing is ok thank you

Saeb Najim