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package org.glassfish.weld;
import java.util.logging.Logger;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.jboss.weld.bootstrap.api.SingletonProvider;
import org.jboss.weld.bootstrap.api.helpers.TCCLSingletonProvider;
/**
* This is a bundle activator which is responsible for configuring Weld bundle
* to be used in GlassFish. As part of configuration, it configures the the
* SingletonProvider in Weld. It sets different SingletonProvider for different
* profiles. e.g., in WebProfile, it sets
* {@link org.jboss.weld.bootstrap.api.helpers.TCCLSingletonProvider}, where as
* for full-javaee profile, it uses
* {@link org.glassfish.weld.ACLSingletonProvider}. It tests profile by testing
* existence of {@link org.glassfish.javaee.full.deployment.EarClassLoader}.
*
* Since Weld 1.1, an implementation of the
* {@link org.jboss.weld.serialization.spi.ProxyServices} SPI is used to provide
* a classloader to load javassist defined proxies. This classloader ensures
* that they can load not only application defined classes but also classes
* exported by any OSGi bundle as long as the operation is happening in
* the context of a Java EE app.
*
* The bundle activator resets the SingletonProvicer in stop().
*
* @author Sanjeeb.Sahoo@Sun.COM
*/
public class WeldActivator implements BundleActivator {
private Logger logger = Logger.getLogger(WeldActivator.class.getName());
// private javassist.util.proxy.ProxyFactory.ClassLoaderProvider oldCLP;
public void start(BundleContext context) throws Exception {
boolean earSupport = false;
try {
Class
.forName("org.glassfish.javaee.full.deployment.EarClassLoader");
earSupport = true;
} catch (ClassNotFoundException cnfe) {
}
SingletonProvider.initialize(earSupport ? new ACLSingletonProvider()
: new TCCLSingletonProvider());
}
public void stop(BundleContext context) throws Exception {
SingletonProvider.reset();
}
}