java.io.FileNotFoundException, java.io.IOException
{
try
{
SerializationHandler rtreeHandler = transformer.getResultTreeHandler();
XPathContext xctxt = transformer.getXPathContext();
XObject value;
// Make the return object into an XObject because it
// will be easier below. One of the reasons to do this
// is to keep all the conversion functionality in the
// XObject classes.
if (obj instanceof XObject)
{
value = (XObject) obj;
}
else if (obj instanceof String)
{
value = new XString((String) obj);
}
else if (obj instanceof Boolean)
{
value = new XBoolean(((Boolean) obj).booleanValue());
}
else if (obj instanceof Double)
{
value = new XNumber(((Double) obj).doubleValue());
}
else if (obj instanceof DocumentFragment)
{
int handle = xctxt.getDTMHandleFromNode((DocumentFragment)obj);
value = new XRTreeFrag(handle, xctxt);
}
else if (obj instanceof DTM)
{
DTM dtm = (DTM)obj;
DTMIterator iterator = new DescendantIterator();
// %%ISSUE%% getDocument may not be valid for DTMs shared by multiple
// document trees, eg RTFs. But in that case, we shouldn't be trying
// to iterate over the whole DTM; we should be iterating over
// dtm.getDocumentRoot(rootNodeHandle), and folks should have told us
// this by passing a more appropriate type.
iterator.setRoot(dtm.getDocument(), xctxt);
value = new XNodeSet(iterator);
}
else if (obj instanceof DTMAxisIterator)
{
DTMAxisIterator iter = (DTMAxisIterator)obj;
DTMIterator iterator = new OneStepIterator(iter, -1);
value = new XNodeSet(iterator);
}
else if (obj instanceof DTMIterator)
{
value = new XNodeSet((DTMIterator) obj);
}
else if (obj instanceof NodeIterator)
{
value = new XNodeSet(new org.apache.xpath.NodeSetDTM(((NodeIterator)obj), xctxt));
}
else if (obj instanceof org.w3c.dom.Node)
{
value =
new XNodeSet(xctxt.getDTMHandleFromNode((org.w3c.dom.Node) obj),
xctxt.getDTMManager());
}
else
{
value = new XString(obj.toString());
}
int type = value.getType();
String s;
switch (type)
{
case XObject.CLASS_BOOLEAN :
case XObject.CLASS_NUMBER :
case XObject.CLASS_STRING :
s = value.str();
rtreeHandler.characters(s.toCharArray(), 0, s.length());
break;
case XObject.CLASS_NODESET : // System.out.println(value);
DTMIterator nl = value.iter();
int pos;
while (DTM.NULL != (pos = nl.nextNode()))
{
DTM dtm = nl.getDTM(pos);
int top = pos;
while (DTM.NULL != pos)
{
rtreeHandler.flushPending();
ClonerToResultTree.cloneToResultTree(pos, dtm.getNodeType(pos),
dtm, rtreeHandler, true);
int nextNode = dtm.getFirstChild(pos);
while (DTM.NULL == nextNode)
{
if (DTM.ELEMENT_NODE == dtm.getNodeType(pos))
{
rtreeHandler.endElement("", "", dtm.getNodeName(pos));
}
if (top == pos)
break;
nextNode = dtm.getNextSibling(pos);
if (DTM.NULL == nextNode)
{
pos = dtm.getParent(pos);
if (top == pos)
{
if (DTM.ELEMENT_NODE == dtm.getNodeType(pos))
{
rtreeHandler.endElement("", "", dtm.getNodeName(pos));
}
nextNode = DTM.NULL;
break;