/**
* Gives the underlying stream for XMLStreamWriter. It closes any start elements, and returns the
* stream so that JAXB can write infoset directly to the stream.
*
* @param writer XMLStreamWriter for which stream is required
* @return underlying OutputStream, null if writer doesn't provide a way to get it
* @throws XMLStreamException if any of writer operations throw the exception
*/
public static @Nullable OutputStream getOutputStream(XMLStreamWriter writer)
throws XMLStreamException {
Object obj = null;
// Hack for JDK6's SJSXP
if (writer instanceof Map) {
obj = ((Map) writer).get("sjsxp-outputstream");
}
// woodstox
if (obj == null) {
try {
obj = writer.getProperty("com.ctc.wstx.outputUnderlyingStream");
} catch (Exception ie) {
// Catch all exceptions. SJSXP in JDK throws NPE
// nothing to do here
}
}
// SJSXP
if (obj == null) {
try {
obj = writer.getProperty("http://java.sun.com/xml/stream/properties/outputstream");
} catch (Exception ie) {
// Catch all exceptions. SJSXP in JDK throws NPE
// nothing to do here
}
}
if (obj != null) {
writer.writeCharacters(""); // Force completion of open elems
writer.flush();
return (OutputStream) obj;
}
return null;
}
public Object getProperty(String name) throws IllegalArgumentException {
return writer.getProperty(name);
}
public java.lang.Object getProperty(java.lang.String name) throws IllegalArgumentException {
return baseWriter.getProperty(name);
}