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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.engine.transaction.jta.platform.internal;
import java.util.Map;
import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
import org.hibernate.boot.registry.classloading.spi.ClassLoadingException;
import org.hibernate.engine.transaction.jta.platform.spi.JtaPlatform;
import org.hibernate.engine.transaction.jta.platform.spi.JtaPlatformProvider;
import org.hibernate.engine.transaction.jta.platform.spi.JtaPlatformResolver;
import org.hibernate.service.spi.ServiceRegistryImplementor;
import org.jboss.logging.Logger;
/**
* @author Steve Ebersole
*/
public class StandardJtaPlatformResolver implements JtaPlatformResolver {
public static final StandardJtaPlatformResolver INSTANCE = new StandardJtaPlatformResolver();
private static final Logger log = Logger.getLogger( StandardJtaPlatformResolver.class );
@Override
public JtaPlatform resolveJtaPlatform(Map configurationValues, ServiceRegistryImplementor registry) {
final ClassLoaderService classLoaderService = registry.getService( ClassLoaderService.class );
// Initially look for a JtaPlatformProvider
for ( JtaPlatformProvider provider : classLoaderService.loadJavaServices( JtaPlatformProvider.class ) ) {
final JtaPlatform providedPlatform = provider.getProvidedJtaPlatform();
log.tracef( "Located JtaPlatformProvider [%s] provided JtaPlaform : %s", provider, providedPlatform );
if ( providedPlatform!= null ) {
return providedPlatform;
}
}
// look for classes on the ClassLoader (via service) that we know indicate certain JTA impls or
// indicate running in certain environments with known JTA impls.
//
// IMPL NOTE : essentially we attempt Class lookups and use the exceptions from the class(es) not
// being found as the indicator
// first try loading WildFly Transaction Client
try {
classLoaderService.classForName( WildFlyStandAloneJtaPlatform.WILDFLY_TM_CLASS_NAME );
classLoaderService.classForName( WildFlyStandAloneJtaPlatform.WILDFLY_UT_CLASS_NAME );
// we know that the WildFly Transaction Client TM classes are available
// if neither of these look-ups resulted in an error (no such class), then WildFly Transaction Client TM is available on
// the classpath.
//
// todo : we cannot really distinguish between the need for JBossStandAloneJtaPlatform versus JBossApServerJtaPlatform
// but discussions with David led to the JtaPlatformProvider solution above, so inside JBoss AS we
// should be relying on that.
// Note that on WF13+, we can expect org.jboss.as.jpa.hibernate5.service.WildFlyCustomJtaPlatformInitiator to choose
// the WildFlyCustomJtaPlatform, unless the application has disabled WildFlyCustomJtaPlatformInitiator.
return new WildFlyStandAloneJtaPlatform();
}
catch (ClassLoadingException ignore) {
}
// JBoss ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
try {
classLoaderService.classForName( JBossStandAloneJtaPlatform.JBOSS_TM_CLASS_NAME );
classLoaderService.classForName( JBossStandAloneJtaPlatform.JBOSS_UT_CLASS_NAME );
// we know that the JBoss TS classes are available
// if neither of these look-ups resulted in an error (no such class), then JBossTM is available on
// the classpath
//
// todo : we cannot really distinguish between the need for JBossStandAloneJtaPlatform versus JBossApServerJtaPlatform
// but discussions with David led to the JtaPlatformProvider solution above, so inside JBoss AS we
// should be relying on that
return new JBossStandAloneJtaPlatform();
}
catch (ClassLoadingException ignore) {
}
// Atomikos ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
try {
classLoaderService.classForName( AtomikosJtaPlatform.TM_CLASS_NAME );
return new AtomikosJtaPlatform();
}
catch (ClassLoadingException ignore) {
}
// Bitronix ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
try {
classLoaderService.classForName( BitronixJtaPlatform.TM_CLASS_NAME );
return new BitronixJtaPlatform();
}
catch (ClassLoadingException ignore) {
}
// JOnAS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
try {
classLoaderService.classForName( JOnASJtaPlatform.TM_CLASS_NAME );
return new JOnASJtaPlatform();
}
catch (ClassLoadingException ignore) {
}
// JOTM ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
try {
classLoaderService.classForName( JOTMJtaPlatform.TM_CLASS_NAME );
return new JOTMJtaPlatform();
}
catch (ClassLoadingException ignore) {
}
// WebSphere Liberty ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
try {
classLoaderService.classForName(WebSphereLibertyJtaPlatform.TMF_CLASS_NAME);
return new WebSphereLibertyJtaPlatform();
}
catch (ClassLoadingException ignore) {
}
// WebSphere traditional ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
for ( WebSphereJtaPlatform.WebSphereEnvironment webSphereEnvironment
: WebSphereJtaPlatform.WebSphereEnvironment.values() ) {
try {
Class accessClass = classLoaderService.classForName( webSphereEnvironment.getTmAccessClassName() );
return new WebSphereJtaPlatform( accessClass, webSphereEnvironment );
}
catch (ClassLoadingException ignore) {
}
}
// Finally, return the default...
log.debugf( "Could not resolve JtaPlatform, using default [%s]", NoJtaPlatform.class.getName() );
return NoJtaPlatform.INSTANCE;
}
}