/** Returns child <code>TreeNode</code>s for the given <code>TreeNode</code> model Object. */
public List getChildTreeNodeObjects(Object nodeObject) {
if (nodeObject == null) {
return null;
}
// if (nodeObject.toString().equals(_objectName)) {
// In this implementation _objectName represents the top-level,
// we need to find its children here
// if (_children != null) {
// return Arrays.asList((Object[])_children);
// }
String context = "";
if (nodeObject instanceof NameClassPair) {
context = (String) ((NameClassPair) nodeObject).getName();
_nodeClass = (String) ((NameClassPair) nodeObject).getClassName();
}
List transformed = new ArrayList();
try {
ArrayList result =
(ArrayList)
JMXUtil.getMBeanServer()
.invoke(
new ObjectName(_objectName),
"getNames",
new String[] {context},
new String[] {"java.lang.String"});
for (int i = 0; i < result.size(); i++) {
NameClassPair pair = (NameClassPair) result.get(i);
String nm = pair.getName();
String prepend = context.equals("") ? "" : context + "/";
pair.setName(prepend + pair.getName());
transformed.add(pair);
}
_children = transformed.toArray(new Object[0]);
// Ok, we got the result, provide an event in case we want to
// do some filtering
FacesContext ctx = FacesContext.getCurrentInstance();
Object retVal =
getLayoutComponent()
.dispatchHandlers(
ctx,
FilterTreeEvent.EVENT_TYPE,
new FilterTreeEvent(getParentUIComponent(), _children));
if ((retVal != null) && (retVal instanceof Object[])) {
// We have a return value, use it instead of the original list
_children = (Object[]) retVal;
}
} catch (Exception ex) {
// Ignore exception since there are no children
_children = null;
}
return _children != null ? Arrays.asList((Object[]) _children) : null;
}
/**
* This method returns the "options" that should be supplied to the factory that creates the
* <code>TreeNode</code> for the given tree node model object.
*
* <p>Some useful options for the standard <code>TreeNode</code> component include:
*
* <p>
*
* <ul>
* <li>text
* <li>url
* <li>imageURL
* <li>target
* <li>action
* <li>
* <li>actionListener
* <li>expanded
* </ul>
*
* <p>See Tree / TreeNode component documentation for more details.
*/
public Map<String, Object> getFactoryOptions(Object nodeObject) {
if (nodeObject == null) {
return null;
}
LayoutComponent desc = getLayoutComponent();
Map<String, Object> props = new HashMap<String, Object>();
if (nodeObject.toString().equals(_objectName)) {
// This case deals with the top node.
// NOTE: All supported options must be handled here,
// otherwise they'll be ignored.
// NOTE: Options will be evaluated later, do not eval here.
setProperty(props, "text", desc.getOption("text"));
setProperty(props, "url", desc.getOption("url"));
setProperty(props, "imageURL", desc.getOption("imageURL"));
setProperty(props, "target", desc.getOption("target"));
setProperty(props, "action", desc.getOption("action"));
// NOTE: Although actionListener is supported, LH currently
// implements this to be the ActionListener of the "turner"
// which is inconsistent with "action". We should make use
// of the "Handler" feature which provides a "toggle"
// CommandEvent.
setProperty(props, "actionListener", desc.getOption("actionListener"));
setProperty(props, "expanded", desc.getOption("expanded"));
} else {
// This case deals with the children
// NOTE: All supported options must be handled here,
// otherwise they'll be ignored
_childImage = "../.." + _childImageFolder;
if (nodeObject instanceof NameClassPair) {
String context = (String) ((NameClassPair) nodeObject).getName();
setProperty(props, "text", context);
setProperty(props, "nodeClass", (String) ((NameClassPair) nodeObject).getClassName());
try {
ArrayList result =
(ArrayList)
JMXUtil.getMBeanServer()
.invoke(
new ObjectName(_objectName),
"getNames",
new String[] {context},
new String[] {"java.lang.String"});
} catch (Exception ex) {
// Ignore exception since there are no children.
_childImage = "../.." + _childImageDocument;
}
} else {
throw new RuntimeException(
"'"
+ nodeObject
+ "' Illegal type ("
+ nodeObject.getClass().getName()
+ ") for tree processing");
}
// Finish setting the child properties
setProperty(props, "url", desc.getOption("childURL"));
setProperty(props, "imageURL", _childImage);
setProperty(props, "target", desc.getOption("childTarget"));
setProperty(props, "action", desc.getOption("childAction"));
// We are using "childActionListener" for the hyperlink, not the TreeNode
// setProperty(props, "actionListener", desc.getOption("childActionListener"));
setProperty(props, "expanded", desc.getOption("childExpanded"));
}
// Return the options
return props;
}
