Examples with StAXSource javax.xml.transform.stax.StAXSource used on opensource projects

Example 66 with StAXSource

use of javax.xml.transform.stax.StAXSource in project tomee by apache.

the class StaxUtils method createXMLStreamReader.

public static XMLStreamReader createXMLStreamReader(Source source) {
    try {
        if (source instanceof DOMSource) {
            DOMSource ds = (DOMSource) source;
            Node nd = ds.getNode();
            Element el = null;
            if (nd instanceof Document) {
                el = ((Document) nd).getDocumentElement();
            } else if (nd instanceof Element) {
                el = (Element) nd;
            }
            if (null != el) {
                return new W3CDOMStreamReader(el, source.getSystemId());
            }
        } else if (source instanceof StAXSource) {
            return ((StAXSource) source).getXMLStreamReader();
        } else if (source instanceof StaxSource) {
            return ((StaxSource) source).getXMLStreamReader();
        } else if (source instanceof SAXSource) {
            SAXSource ss = (SAXSource) source;
            if (ss.getXMLReader() == null) {
                return createXMLStreamReader(((SAXSource) source).getInputSource());
            }
        }
        XMLInputFactory factory = getXMLInputFactory();
        try {
            XMLStreamReader reader = null;
            try {
                reader = factory.createXMLStreamReader(source);
            } catch (UnsupportedOperationException e) {
            // ignore
            }
            if (reader == null && source instanceof StreamSource) {
                // createXMLStreamReader from Source is optional, we'll try and map it
                StreamSource ss = (StreamSource) source;
                if (ss.getInputStream() != null) {
                    reader = factory.createXMLStreamReader(ss.getSystemId(), ss.getInputStream());
                } else {
                    reader = factory.createXMLStreamReader(ss.getSystemId(), ss.getReader());
                }
            }
            return reader;
        } finally {
            returnXMLInputFactory(factory);
        }
    } catch (XMLStreamException e) {
        throw new RuntimeException("Couldn't parse stream.", e);
    }
}