private Object invokeAttribute(PropertyDescriptor pd, MethodInvocation invocation)
throws JMException, IOException {
String attributeName = JmxUtils.getAttributeName(pd, this.useStrictCasing);
MBeanAttributeInfo inf = (MBeanAttributeInfo) this.allowedAttributes.get(attributeName);
// If no attribute is returned, we know that it is not defined in the
// management interface.
if (inf == null) {
throw new InvalidInvocationException(
"Attribute '" + pd.getName() + "' is not exposed on the management interface");
}
if (invocation.getMethod().equals(pd.getReadMethod())) {
if (inf.isReadable()) {
return this.server.getAttribute(this.objectName, attributeName);
} else {
throw new InvalidInvocationException("Attribute '" + attributeName + "' is not readable");
}
} else if (invocation.getMethod().equals(pd.getWriteMethod())) {
if (inf.isWritable()) {
server.setAttribute(
this.objectName, new Attribute(attributeName, invocation.getArguments()[0]));
return null;
} else {
throw new InvalidInvocationException("Attribute '" + attributeName + "' is not writable");
}
} else {
throw new IllegalStateException(
"Method [" + invocation.getMethod() + "] is neither a bean property getter nor a setter");
}
}
public void testAnnotatedMXBean() throws Exception {
if (JdkVersion.getMajorJavaVersion() < JdkVersion.JAVA_16) {
return;
}
FooX foo = new FooX();
assertTrue("MXBean annotation not detected correctly", JmxUtils.isMBean(foo.getClass()));
}
/**
* Loads the management interface info for the configured MBean into the caches. This information
* is used by the proxy when determining whether an invocation matches a valid operation or
* attribute on the management interface of the managed resource.
*/
private void retrieveMBeanInfo()
throws MBeanServerNotFoundException, MBeanInfoRetrievalException {
try {
MBeanInfo info = this.server.getMBeanInfo(this.objectName);
// get attributes
MBeanAttributeInfo[] attributeInfo = info.getAttributes();
this.allowedAttributes = new HashMap(attributeInfo.length);
for (int x = 0; x < attributeInfo.length; x++) {
this.allowedAttributes.put(attributeInfo[x].getName(), attributeInfo[x]);
}
// get operations
MBeanOperationInfo[] operationInfo = info.getOperations();
this.allowedOperations = new HashMap(operationInfo.length);
for (int x = 0; x < operationInfo.length; x++) {
MBeanOperationInfo opInfo = operationInfo[x];
this.allowedOperations.put(
new MethodCacheKey(
opInfo.getName(), JmxUtils.parameterInfoToTypes(opInfo.getSignature())),
opInfo);
}
} catch (ClassNotFoundException ex) {
throw new MBeanInfoRetrievalException(
"Unable to locate class specified in method signature", ex);
} catch (IntrospectionException ex) {
throw new MBeanInfoRetrievalException(
"Unable to obtain MBean info for bean [" + this.objectName + "]", ex);
} catch (InstanceNotFoundException ex) {
// if we are this far this shouldn't happen, but...
throw new MBeanInfoRetrievalException(
"Unable to obtain MBean info for bean ["
+ this.objectName
+ "]: it is likely that this bean was unregistered during the proxy creation process",
ex);
} catch (ReflectionException ex) {
throw new MBeanInfoRetrievalException(
"Unable to read MBean info for bean [ " + this.objectName + "]", ex);
} catch (IOException ex) {
throw new MBeanInfoRetrievalException(
"An IOException occurred when communicating with the MBeanServer. "
+ "It is likely that you are communicating with a remote MBeanServer. "
+ "Check the inner exception for exact details.",
ex);
}
}
/**
* Connects to the remote <code>MBeanServer</code> using the configured <code>JMXServiceURL</code>
* .
*
* @see #setServiceUrl(String)
* @see #setConnectOnStartup(boolean)
*/
private void connect() throws MBeanServerNotFoundException {
if (this.serviceUrl != null) {
if (logger.isDebugEnabled()) {
logger.debug("Connecting to remote MBeanServer at URL [" + this.serviceUrl + "]");
}
try {
this.connector = JMXConnectorFactory.connect(this.serviceUrl);
this.server = this.connector.getMBeanServerConnection();
} catch (IOException ex) {
throw new MBeanServerNotFoundException(
"Could not connect to remote MBeanServer at URL [" + this.serviceUrl + "]", ex);
}
} else {
logger.debug("Attempting to locate local MBeanServer");
this.server = JmxUtils.locateMBeanServer();
}
}
/**
* Routes a method invocation (not a property get/set) to the corresponding operation on the
* managed resource.
*
* @param method the method corresponding to operation on the managed resource.
* @param args the invocation arguments
* @return the value returned by the method invocation.
*/
private Object invokeOperation(Method method, Object[] args) throws JMException, IOException {
MethodCacheKey key = new MethodCacheKey(method.getName(), method.getParameterTypes());
MBeanOperationInfo info = (MBeanOperationInfo) this.allowedOperations.get(key);
if (info == null) {
throw new InvalidInvocationException(
"Operation '" + method.getName() + "' is not exposed on the management interface");
}
String[] signature = null;
synchronized (this.signatureCache) {
signature = (String[]) this.signatureCache.get(method);
if (signature == null) {
signature = JmxUtils.getMethodSignature(method);
this.signatureCache.put(method, signature);
}
}
return this.server.invoke(this.objectName, method.getName(), args, signature);
}
/**
* Registers the component specifying the info that describes it.
*
* <p>Certain interfaces are automatically detected. If the component implements {@code
* Lifecycle}, it will be registered as though using {@link #registerLifecycle(Lifecycle)}. If it
* implements {@code ServletContextAware}, then it will be registered as though using {@link
* #registerServletContextAware(ServletContextAware)}. If it implements {@code InitializingBean},
* then it will be initialized as though using {@link #initialize(InitializingBean)}.
*
* <p>If the component implements {@code FactoryBean}, it will be checked for the automatically
* detected interfaces before the factory is evaluated. The evaluated factory will then be
* registered, and the resulting object will again be checked for automatically detected
* interfaces.
*
* @param info the component info to register, not null
* @param instance the component instance to register, not null
* @throws IllegalArgumentException if unable to register
*/
public void registerComponent(final ComponentInfo info, Object instance) {
ArgumentChecker.notNull(info, "info");
ArgumentChecker.notNull(instance, "instance");
checkStatus(Status.CREATING);
final ComponentKey key = info.toComponentKey();
try {
// initialize
initialize0(instance);
registerInstanceInterfaces0(instance);
// handle factories
if (instance instanceof FactoryBean<?>) {
try {
instance = ((FactoryBean<?>) instance).getObject();
} catch (final Exception ex) {
throw new OpenGammaRuntimeException("FactoryBean threw exception", ex);
}
initialize0(instance);
registerInstanceInterfaces0(instance);
}
// register into data structures
final Object current = _instanceMap.putIfAbsent(key, instance);
if (current != null) {
throw new IllegalArgumentException(
"Component already registered for specified information: " + key);
}
_infoMap.putIfAbsent(info.getType(), new ComponentTypeInfo(info.getType()));
final ComponentTypeInfo typeInfo = getTypeInfo(info.getType());
typeInfo.getInfoMap().put(info.getClassifier(), info);
registeredComponent(info, instance);
// If the component being registered is also an MBean, then register it as such
if (JmxUtils.isMBean(instance.getClass())) {
registerMBean(instance);
}
} catch (final RuntimeException ex) {
_status.set(Status.FAILED);
throw new RuntimeException("Failed during registration: " + key, ex);
}
}
