private static void check(String what, MBeanNotificationInfo[] mbnis) {
System.out.print(what + ": checking notification info: ");
if (mbnis.length == 0) {
System.out.println("NONE (suspicious)");
suspicious.add(what);
return;
}
// Each MBeanNotificationInfo.getName() should be an existent
// Java class that is Notification or a subclass of it
for (int j = 0; j < mbnis.length; j++) {
String notifClassName = mbnis[j].getName();
Class notifClass;
try {
notifClass = Class.forName(notifClassName);
} catch (Exception e) {
System.out.print("FAILED(" + notifClassName + ": " + e + ") ");
failed.add(what);
continue;
}
if (!Notification.class.isAssignableFrom(notifClass)) {
System.out.print("FAILED(" + notifClassName + ": not a Notification) ");
failed.add(what);
continue;
}
System.out.print("OK(" + notifClassName + ") ");
}
System.out.println();
}
private static Set<String> findStandardMBeansFromJar(URL codeBase) throws Exception {
InputStream is = codeBase.openStream();
JarInputStream jis = new JarInputStream(is);
Set<String> names = new TreeSet<String>();
JarEntry entry;
while ((entry = jis.getNextJarEntry()) != null) {
String name = entry.getName();
if (!name.endsWith(".class")) continue;
name = name.substring(0, name.length() - 6);
name = name.replace('/', '.');
names.add(name);
}
return names;
}
private static String[] findStandardMBeans(URL codeBase) throws Exception {
Set<String> names;
if (codeBase.getProtocol().equalsIgnoreCase("file") && codeBase.toString().endsWith("/"))
names = findStandardMBeansFromDir(codeBase);
else names = findStandardMBeansFromJar(codeBase);
Set<String> standardMBeanNames = new TreeSet<String>();
for (String name : names) {
if (name.endsWith("MBean")) {
String prefix = name.substring(0, name.length() - 5);
if (names.contains(prefix)) standardMBeanNames.add(prefix);
}
}
return standardMBeanNames.toArray(new String[0]);
}
private static void scanDir(File dir, String prefix, Set<String> names) throws Exception {
File[] files = dir.listFiles();
if (files == null) return;
for (int i = 0; i < files.length; i++) {
File f = files[i];
String name = f.getName();
String p = (prefix.equals("")) ? name : prefix + "." + name;
if (f.isDirectory()) scanDir(f, p, names);
else if (name.endsWith(".class")) {
p = p.substring(0, p.length() - 6);
names.add(p);
}
}
}
public static void main(String[] args) throws Exception {
System.out.println(
"Checking that all known MBeans that are "
+ "NotificationBroadcasters have sane "
+ "MBeanInfo.getNotifications()");
System.out.println("Checking platform MBeans...");
checkPlatformMBeans();
URL codeBase = ClassLoader.getSystemResource("javax/management/MBeanServer.class");
if (codeBase == null) {
throw new Exception("Could not determine codeBase for " + MBeanServer.class);
}
System.out.println();
System.out.println("Looking for standard MBeans...");
String[] classes = findStandardMBeans(codeBase);
System.out.println("Testing standard MBeans...");
for (int i = 0; i < classes.length; i++) {
String name = classes[i];
Class<?> c;
try {
c = Class.forName(name);
} catch (Throwable e) {
System.out.println(name + ": cannot load (not public?): " + e);
continue;
}
if (!NotificationBroadcaster.class.isAssignableFrom(c)) {
System.out.println(name + ": not a NotificationBroadcaster");
continue;
}
if (Modifier.isAbstract(c.getModifiers())) {
System.out.println(name + ": abstract class");
continue;
}
NotificationBroadcaster mbean;
Constructor<?> constr;
try {
constr = c.getConstructor();
} catch (Exception e) {
System.out.println(name + ": no public no-arg constructor: " + e);
continue;
}
try {
mbean = (NotificationBroadcaster) constr.newInstance();
} catch (Exception e) {
System.out.println(name + ": no-arg constructor failed: " + e);
continue;
}
check(mbean);
}
System.out.println();
System.out.println("Testing some explicit cases...");
check(new RelationService(false));
/*
We can't do this:
check(new RequiredModelMBean());
because the Model MBean spec more or less forces us to use the
names GENERIC and ATTRIBUTE_CHANGE for its standard notifs.
*/
checkRMIConnectorServer();
System.out.println();
if (!suspicious.isEmpty()) System.out.println("SUSPICIOUS CLASSES: " + suspicious);
if (failed.isEmpty()) System.out.println("TEST PASSED");
else {
System.out.println("TEST FAILED: " + failed);
System.exit(1);
}
}