/**
* INTERNAL: This method will return the key to be used to store/retrieve the delegates for a
* given application.
*
* <p>OC4J classLoader levels: 0 - APP.web (servlet/jsp) or APP.wrapper (ejb) 1 - APP.root (parent
* for helperContext) 2 - default.root 3 - system.root 4 - oc4j.10.1.3 (remote EJB) or
* org.eclipse.persistence:11.1.1.0.0 5 - api:1.4.0 6 - jre.extension:0.0.0 7 -
* jre.bootstrap:1.5.0_07 (with various J2SE versions)
*
* @return Application classloader for OC4J, application name for WebLogic, otherwise
* Thread.currentThread().getContextClassLoader()
*/
private static Object getDelegateMapKey(ClassLoader classLoader) {
String classLoaderName = classLoader.getClass().getName();
// Default to Thread.currentThread().getContextClassLoader()
Object delegateKey = classLoader;
// Delegates in OC4J server will be keyed on classloader
if (classLoaderName.startsWith(OC4J_CLASSLOADER_NAME)) {
// Check to see if we are running in a Servlet container or a local EJB container
if ((classLoader.getParent() != null) //
&& ((classLoader.toString().indexOf(SDOConstants.CLASSLOADER_WEB_FRAGMENT) != -1) //
|| (classLoader.toString().indexOf(SDOConstants.CLASSLOADER_EJB_FRAGMENT) != -1))) {
classLoader = classLoader.getParent();
}
delegateKey = classLoader;
// Delegates in WebLogic server will be keyed on application name
} else if (classLoaderName.contains(WLS_CLASSLOADER_NAME)) {
Object executeThread = getExecuteThread();
if (executeThread != null) {
try {
Method getMethod =
PrivilegedAccessHelper.getPublicMethod(
executeThread.getClass(),
WLS_APPLICATION_NAME_GET_METHOD_NAME,
PARAMETER_TYPES,
false);
delegateKey = PrivilegedAccessHelper.invokeMethod(getMethod, executeThread);
// ExecuteThread returns null
if (delegateKey == null) {
delegateKey = classLoader;
}
} catch (Exception e) {
throw SDOException.errorInvokingWLSMethodReflectively(
WLS_APPLICATION_NAME_GET_METHOD_NAME, WLS_EXECUTE_THREAD, e);
}
}
}
return delegateKey;
}
/**
* INTERNAL: This convenience method will look up a WebLogic execute thread from the runtime MBean
* tree. The execute thread contains application information. This code will use the name of the
* current thread to lookup the corresponding ExecuteThread. The ExecuteThread will allow us to
* obtain the application name (and version, etc).
*
* @return application name or null if the name cannot be obtained
*/
private static Object getExecuteThread() {
if (getWLSMBeanServer() != null) {
// Lazy load the ThreadPoolRuntime instance
if (wlsThreadPoolRuntime == null) {
ObjectName service = null;
ObjectName serverRuntime = null;
try {
service = new ObjectName(WLS_SERVICE_KEY);
} catch (Exception x) {
throw SDOException.errorGettingWLSObjectName(
WLS_RUNTIME_SERVICE + " [" + WLS_SERVICE_KEY + "]", x);
}
try {
serverRuntime = (ObjectName) wlsMBeanServer.getAttribute(service, WLS_SERVER_RUNTIME);
} catch (Exception x) {
throw SDOException.errorGettingWLSObjectName(WLS_SERVER_RUNTIME, x);
}
try {
wlsThreadPoolRuntime =
(ObjectName) wlsMBeanServer.getAttribute(serverRuntime, WLS_THREADPOOL_RUNTIME);
} catch (Exception x) {
throw SDOException.errorGettingWLSObjectName(WLS_THREADPOOL_RUNTIME, x);
}
}
try {
return wlsMBeanServer.invoke(
wlsThreadPoolRuntime,
WLS_EXECUTE_THREAD_GET_METHOD_NAME,
new Object[] {Thread.currentThread().getName()},
new String[] {String.class.getName()});
} catch (Exception x) {
throw SDOException.errorInvokingWLSMethodReflectively(
WLS_EXECUTE_THREAD_GET_METHOD_NAME, WLS_THREADPOOL_RUNTIME, x);
}
}
return null;
}
