package javax.xml.transform.stax;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.events.XMLEvent;
import javax.xml.transform.Source;
public class StAXSource implements Source {
public static final String FEATURE = "http://javax.xml.transform.stax.StAXSource/feature";
private final XMLStreamReader xmlStreamReader;
private final XMLEventReader xmlEventReader;
private final String systemId;
public StAXSource(XMLStreamReader xmlStreamReader) {
if (xmlStreamReader == null) {
throw new IllegalArgumentException("XMLStreamReader cannot be null.");
}
final int event = xmlStreamReader.getEventType();
if (event != XMLStreamConstants.START_DOCUMENT &&
event != XMLStreamConstants.START_ELEMENT) {
throw new IllegalStateException("The state of the XMLStreamReader must be START_DOCUMENT or START_ELEMENT");
}
this.xmlStreamReader = xmlStreamReader;
this.xmlEventReader = null;
this.systemId = xmlStreamReader.getLocation().getSystemId();
}
public StAXSource(XMLEventReader xmlEventReader)
throws XMLStreamException {
if (xmlEventReader == null) {
throw new IllegalArgumentException("XMLEventReader cannot be null.");
}
final XMLEvent event = xmlEventReader.peek();
if (!event.isStartDocument() &&
!event.isStartElement()) {
throw new IllegalStateException("The state of the XMLEventReader must be START_DOCUMENT or START_ELEMENT");
}
this.xmlStreamReader = null;
this.xmlEventReader = xmlEventReader;
this.systemId = event.getLocation().getSystemId();
}
public XMLStreamReader getXMLStreamReader() {
return xmlStreamReader;
}
public XMLEventReader getXMLEventReader() {
return xmlEventReader;
}
public String getSystemId() {
return systemId;
}
public void setSystemId(String systemId) {
throw new UnsupportedOperationException("Setting systemId is not supported.");
}
}