public GroovyObject getTagLibraryForTag(
HttpServletRequest request, HttpServletResponse response, String tagName, String namespace) {
String nonNullNamesapce = namespace == null ? DEFAULT_NAMESPACE : namespace;
String fullTagName = nonNullNamesapce + ":" + tagName;
GrailsTagLibClass tagLibClass =
(GrailsTagLibClass)
getGrailsApplication().getArtefactForFeature(TagLibArtefactHandler.TYPE, fullTagName);
if (tagLibClass == null) {
return null;
}
return (GroovyObject) getApplicationContext().getBean(tagLibClass.getFullName());
}
/**
* Registers a tag library for lookup. Each of the tags in the library is mapped by namespace:name
* to the taglib bean. If the taglib has already been registered, this method will override the
* existing information and update the tags to use the new version.
*
* @param taglib The taglib descriptor class.
*/
public void registerTagLib(GrailsTagLibClass taglib) {
String namespace = taglib.getNamespace();
namespaceDispatchers.put(
namespace,
new NamespacedTagDispatcher(namespace, GroovyPage.class, grailsApplication, this));
for (String tagName : taglib.getTagNames()) {
String nameKey = tagNameKey(namespace, tagName);
tagLibraries.put(nameKey, taglib.getFullName());
tagsThatReturnObject.remove(nameKey);
}
for (String tagName : taglib.getTagNamesThatReturnObject()) {
String nameKey = tagNameKey(namespace, tagName);
tagsThatReturnObject.add(nameKey);
}
}