/*******************************************************************************
* Copyright (c) 1998, 2014 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* tware - added for EclipseLink 2.0 release
* 06/30/2010-2.1.1 Michael O'Brien
* - 316513: Enable JMX MBean functionality for JBoss, Glassfish and WebSphere in addition to WebLogic
* Move JMX MBean generic registration code up from specific platforms
* see <link>http://wiki.eclipse.org/EclipseLink/DesignDocs/316513</link>
* 05/10/2014 - 428675 - 2.5.2 - Rick Curtis - Add support for WebSphere logger.
******************************************************************************/
package org.eclipse.persistence.platform.server.was;
import java.lang.reflect.Constructor;
import java.security.AccessController;
import java.security.PrivilegedExceptionAction;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import org.eclipse.persistence.logging.SessionLog;
import org.eclipse.persistence.platform.server.JMXEnabledPlatform;
import org.eclipse.persistence.services.websphere.MBeanWebSphereRuntimeServices;
import org.eclipse.persistence.sessions.DatabaseSession;
/**
* PUBLIC:
*
* This is the concrete subclass responsible for representing WebSphere 7 -specific server behavior.
*
* This platform has: - No JMX MBean runtime services
*
*/
public class WebSphere_7_Platform extends WebSphere_6_1_Platform implements JMXEnabledPlatform {
public static final String SERVER_LOG_CLASS = "com.ibm.ws.jpa.container.eclipselink.logging.EclipseLinkLogger";
/**
* The following constants and attributes are used to determine the module and application name
* to satisfy the requirements for 248746 where we provide an identifier pair for JMX sessions.
* Each application can have several modules. 1) Application name - the persistence unit
* associated with the session (a 1-1 relationship) 2) Module name - the ejb or war jar name
* (there is a 1-many relationship for module:session(s))
*/
static {
/**
* Override by subclass: Search String in application server ClassLoader for the
* application:persistence_unit name
*/
APP_SERVER_CLASSLOADER_APPLICATION_PU_SEARCH_STRING_PREFIX = "[app:";
APP_SERVER_CLASSLOADER_APPLICATION_PU_SEARCH_STRING_POSTFIX = "]";
/** Override by subclass: Search String in application server session for ejb modules */
APP_SERVER_CLASSLOADER_MODULE_EJB_SEARCH_STRING_PREFIX = ".jar!/";
/** Override by subclass: Search String in application server session for war modules */
APP_SERVER_CLASSLOADER_MODULE_WAR_SEARCH_STRING_PREFIX = ".war!/";
APP_SERVER_CLASSLOADER_MODULE_EJB_WAR_SEARCH_STRING_POSTFIX = "]";
}
/**
* INTERNAL: Default Constructor: All behavior for the default constructor is inherited
*/
public WebSphere_7_Platform(DatabaseSession newDatabaseSession) {
super(newDatabaseSession);
this.enableRuntimeServices();
// Create the JMX MBean specific to this platform for later registration
this.prepareServerSpecificServicesMBean();
}
@Override
public SessionLog getServerLog() {
return createSessionLog();
}
protected SessionLog createSessionLog() {
SessionLog log = null;
try {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()) {
log = AccessController.doPrivileged(new PrivilegedExceptionAction<SessionLog>() {
@Override
public SessionLog run() throws Exception {
Class<?> cls = PrivilegedAccessHelper.getClassForName(SERVER_LOG_CLASS);
Constructor<SessionLog> ctor = PrivilegedAccessHelper.getConstructorFor(cls, null, false);
return ctor.newInstance();
}
});
} else {
Class<?> cls = PrivilegedAccessHelper.getClassForName(SERVER_LOG_CLASS);
Constructor<SessionLog> ctor = PrivilegedAccessHelper.getConstructorFor(cls, null, false);
log = ctor.newInstance();
}
} catch (Exception e) {
// Blindly catch exception here as there is no recourse for any specific exception. If
// we can't load the WAS logger just fall back to using the default SessionLog.
log = super.getServerLog();
log.log(SessionLog.FINEST, "Unable to create an instance of " + SERVER_LOG_CLASS
+ ". Falling back to using default logger.", e);
}
return log;
}
@Override
public boolean isRuntimeServicesEnabledDefault() {
return true;
}
/**
* INTERNAL: prepareServerSpecificServicesMBean(): Server specific implementation of the
* creation and deployment of the JMX MBean to provide runtime services for the databaseSession.
*
* Default is to do nothing. Implementing platform classes must override this function and
* supply the server specific MBean instance for later registration by calling it in the
* constructor.
*
* @return void
* @see #isRuntimeServicesEnabled()
* @see #disableRuntimeServices()
* @see #registerMBean()
*/
public void prepareServerSpecificServicesMBean() {
// No check for an existing cached MBean - we will replace it if it exists
if (shouldRegisterRuntimeBean) {
this.setRuntimeServicesMBean(new MBeanWebSphereRuntimeServices(getDatabaseSession()));
}
}
/**
* INTERNAL: serverSpecificRegisterMBean(): Server specific implementation of the creation and
* deployment of the JMX MBean to provide runtime services for my databaseSession.
*
* @return void
* @see #isRuntimeServicesEnabled()
* @see #disableRuntimeServices()
* @see #registerMBean()
*/
@Override
public void serverSpecificRegisterMBean() {
super.serverSpecificRegisterMBean();
// get and cache module and application name during registration
initializeApplicationNameAndModuleName();
}
}