@SuppressWarnings("unchecked")
public static <T> Maybe<Class<T>> tryLoadFromClasspath(String typeName, ManagementContext mgmt) {
Class<T> clazz;
try {
clazz = (Class<T>) mgmt.getCatalog().getRootClassLoader().loadClass(typeName);
} catch (ClassNotFoundException e) {
LOG.debug("Class {} not found on classpath", typeName);
return Maybe.absent(new Throwable("Could not find " + typeName + " on classpath"));
}
return Maybe.<Class<T>>of(clazz);
}
@SuppressWarnings("unchecked")
public static <T extends Entity> Maybe<Class<T>> tryLoadEntityFromCatalogue(
String entityTypeName, ManagementContext mgmt) {
try {
return (Maybe<Class<T>>)
(Maybe<?>)
Maybe.<Class<? extends Entity>>of(
mgmt.getCatalog().loadClassByType(entityTypeName, Entity.class));
} catch (NoSuchElementException e) {
LOG.debug("Class {} not found in catalogue classpath", entityTypeName);
return Maybe.absent();
}
}
/** Returns the CAMP platform associated with a management context, if there is one. */
public static Maybe<CampPlatform> getCampPlatform(ManagementContext mgmt) {
CampPlatform result = mgmt.getConfig().getConfig(BrooklynServerConfig.CAMP_PLATFORM);
if (result != null) return Maybe.of(result);
return Maybe.absent("No CAMP Platform is registered with this Brooklyn management context.");
}