/*******************************************************************************
* Copyright (c) 1998, 2015 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:
* Oracle - initial API and implementation from Oracle TopLink
* 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>
* 12/18/2014-2.6 Rick Curtis
* 455690: Move JNDIConnector lookup type to ServerPlatform.
******************************************************************************/
package org.eclipse.persistence.platform.server.was;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.sql.Connection;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import org.eclipse.persistence.logging.SessionLog;
import org.eclipse.persistence.platform.server.JMXServerPlatformBase;
import org.eclipse.persistence.sessions.DatabaseSession;
import org.eclipse.persistence.sessions.JNDIConnector;
import org.eclipse.persistence.transaction.was.WebSphereTransactionController;
/**
* PUBLIC:
*
* This is the concrete subclass responsible for representing WebSphere-specific server behavior.
*
* This platform has:
* <ul>
* <li> WebSphereTransactionController (JTA integration).
* <li> DataSource connection unwrapping (Oracle JDBC API support)
* </ul>
*/
public class WebSpherePlatform extends JMXServerPlatformBase {
/**
* Cached WAS connection class used to reflectively check connections and unwrap them.
*/
protected Class websphereConnectionClass;
/**
* Cached WAS util class used to reflectively check connections and unwrap them.
*/
protected Class websphereUtilClass;
/**
* Cached WAS util method used for unwrapping connections.
*/
protected Method vendorConnectionMethod;
/**
* INTERNAL:
* Default Constructor: All behavior for the default constructor is inherited
*/
public WebSpherePlatform(DatabaseSession newDatabaseSession) {
super(newDatabaseSession);
this.disableRuntimeServices();
}
/**
* INTERNAL: getExternalTransactionControllerClass(): Answer the class of
* external transaction controller to use for WebSphere. This is
* read-only.
*
* @return Class externalTransactionControllerClass
*
* @see org.eclipse.persistence.transaction.JTATransactionController
* @see org.eclipse.persistence.platform.server.ServerPlatformBase#isJTAEnabled()
* @see org.eclipse.persistence.platform.server.ServerPlatformBase#disableJTA()
* @see org.eclipse.persistence.platform.server.ServerPlatformBase#initializeExternalTransactionController()
*/
public Class getExternalTransactionControllerClass() {
if (externalTransactionControllerClass == null){
externalTransactionControllerClass = WebSphereTransactionController.class;
}
return externalTransactionControllerClass;
}
/**
* Return the class (interface) for the WebSphere JDBC connection wrapper.
*/
protected Class getWebsphereUtilClass() {
if (this.websphereUtilClass == null) {
try {
this.websphereUtilClass = (Class) getDatabaseSession().getPlatform().convertObject("com.ibm.ws.rsadapter.jdbc.WSJdbcUtil", Class.class);
} catch (Throwable exception) {
getDatabaseSession().getSessionLog().logThrowable(SessionLog.WARNING, SessionLog.SERVER, exception);
this.websphereUtilClass = void.class;
}
}
return this.websphereUtilClass;
}
/**
* Return the class (interface) for the WebSphere JDBC connection wrapper.
*/
protected Class getWebsphereConnectionClass() {
if (this.websphereConnectionClass == null) {
try {
this.websphereConnectionClass = (Class) getDatabaseSession().getPlatform().convertObject("com.ibm.ws.rsadapter.jdbc.WSJdbcConnection", Class.class);
} catch (Throwable exception) {
getDatabaseSession().getSessionLog().logThrowable(SessionLog.WARNING, SessionLog.SERVER, exception);
this.websphereConnectionClass = void.class;
}
}
return this.websphereConnectionClass;
}
/**
* Return the method for the WebSphere JDBC connection wrapper vendorConnection.
*/
protected Method getVendorConnectionMethod() {
if ((this.vendorConnectionMethod == null) && (!getWebsphereUtilClass().equals(void.class))) {
try {
Class args[] = new Class[1];
args[0] = getWebsphereConnectionClass();
this.vendorConnectionMethod = PrivilegedAccessHelper.getDeclaredMethod(getWebsphereUtilClass(), "getNativeConnection", args);
} catch (NoSuchMethodException exception) {
getDatabaseSession().getSessionLog().logThrowable(SessionLog.WARNING, SessionLog.SERVER, exception);
}
}
return this.vendorConnectionMethod;
}
/**
* Unwraps the WebSphere JDBC connection wrapping using the WebLogic API reflectively.
*/
@Override
public Connection unwrapConnection(Connection connection) {
if (getWebsphereConnectionClass().isInstance(connection) && getVendorConnectionMethod() != null) {
try {
return (Connection) PrivilegedAccessHelper.invokeMethod(getVendorConnectionMethod(), null, new Object[]{connection});
} catch (IllegalAccessException exception) {
getDatabaseSession().getSessionLog().logThrowable(SessionLog.WARNING, SessionLog.SERVER, exception);
} catch (InvocationTargetException exception) {
getDatabaseSession().getSessionLog().logThrowable(SessionLog.WARNING, SessionLog.SERVER, exception);
}
}
return super.unwrapConnection(connection);
}
@Override
public int getJNDIConnectorLookupType() {
return JNDIConnector.STRING_LOOKUP;
}
}