/**
* Ensure that the element cloning handling of processChildren correctly copies and element to the
* target element, including making sure that document references are properly cleaned up and
* user_data in the original content does not refer to the target document
*
* @throws Exception
*/
@Test
public void testSafeCrossDocumentCloning() throws Exception {
String template = "<test:Bar text='${foo.title}' data='${user}'/>";
executeTemplate(template, "xmlns:test='" + TEST_NS + '\'');
executeTemplate(template, "xmlns:test='" + TEST_NS + '\'');
// This is a little hacky but is fine for testing purposes. Assumes that DOM implementation
// is based on Xerces which will always has a userData hashtable
Document doc = singletonElementHandler.elem.getOwnerDocument();
Class<?> docClass = doc.getClass();
Field userDataField = null;
while (userDataField == null) {
try {
userDataField = docClass.getDeclaredField("userData");
} catch (NoSuchFieldException nsfe) {
// Ignore. Try the parent
}
docClass = docClass.getSuperclass();
}
// Access is typically protected so just bypass
userDataField.setAccessible(true);
Hashtable<?, ?> userDataMap = (Hashtable<?, ?>) userDataField.get(doc);
// There should be only one element in the user data map, if there are more then the
// cloning process has put them there which can be a nasty source of memory leaks. Consider
// the case of this test where the singleton template is a shared and re-used template where
// the template documents userData starts to accumulate cloned nodes for every time that
// template is rendered
assertEquals(1, userDataMap.size());
}
public void setXmlVersion(String arg0) throws DOMException {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("setXmlVersion", new Class[] {arg0.getClass()});
m.invoke(doc, new Object[] {arg0});
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
public void setStrictErrorChecking(boolean arg0) {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("setStrictErrorChecking", new Class[] {boolean.class});
m.invoke(doc, new Object[] {Caster.toBoolean(arg0)});
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
public void setXmlStandalone(boolean arg0) throws DOMException {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("setXmlStandalone", new Class[] {boolean.class});
m.invoke(doc, new Object[] {Caster.toBoolean(arg0)});
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
public void normalizeDocument() {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("normalizeDocument", new Class[] {});
m.invoke(doc, ArrayUtil.OBJECT_EMPTY);
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
public String getXmlVersion() {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("getXmlVersion", new Class[] {});
return Caster.toString(m.invoke(doc, ArrayUtil.OBJECT_EMPTY));
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
public boolean getXmlStandalone() {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("getXmlStandalone", new Class[] {});
return Caster.toBooleanValue(m.invoke(doc, ArrayUtil.OBJECT_EMPTY));
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
public DOMConfiguration getDomConfig() {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("getDomConfig", new Class[] {});
return (DOMConfiguration) m.invoke(doc, ArrayUtil.OBJECT_EMPTY);
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
public Node adoptNode(Node arg0) throws DOMException {
// dynamic load to support jre 1.4 and 1.5
try {
Method m = doc.getClass().getMethod("adoptNode", new Class[] {arg0.getClass()});
return Caster.toNode(m.invoke(doc, new Object[] {arg0}));
} catch (Exception e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}