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package org.jvnet.hk2.osgiadapter;
import static org.jvnet.hk2.osgiadapter.Logger.logger;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.logging.Level;
import org.glassfish.hk2.api.HK2Loader;
import org.glassfish.hk2.api.MultiException;
import org.glassfish.hk2.api.PopulatorPostProcessor;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.utilities.DescriptorImpl;
/**
* A PopulatorPostProcessor that sets the HK2Loader prior to binding a descriptor
*
* @author mason.taube@oracle.com
*
*/
public class OsgiPopulatorPostProcessor implements
PopulatorPostProcessor {
public static final String BUNDLE_VERSION = "Bundle-Version";
public static final String BUNDLE_SYMBOLIC_NAME = "Bundle-SymbolicName";
private final OSGiModuleImpl osgiModule;
private final HK2Loader loader;
OsgiPopulatorPostProcessor(OSGiModuleImpl paramOsgiModule) {
this.osgiModule = paramOsgiModule;
loader = new HK2Loader() {
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public Class<?> loadClass(final String className)
throws MultiException {
osgiModule.start();
return (Class<?>) AccessController.doPrivileged(new PrivilegedAction() {
public java.lang.Object run() {
try {
return osgiModule.getBundle().loadClass(className);
} catch (Throwable e) {
logger.logp(Level.SEVERE, "OSGiModuleImpl",
"loadClass",
"Exception in module " + osgiModule.getBundle().toString(), e);
throw new MultiException(e);
}
}
});
}
public String toString() {
return "OsgiPopulatorPostProcessor.HK2Loader(" +
osgiModule + "," + System.identityHashCode(this) + ")";
}
};
}
@Override
public DescriptorImpl process(ServiceLocator serviceLocator, DescriptorImpl descriptorImpl) {
descriptorImpl.setLoader(loader);
descriptorImpl.addMetadata(BUNDLE_SYMBOLIC_NAME,osgiModule.getBundle().getSymbolicName());
descriptorImpl.addMetadata(BUNDLE_VERSION, osgiModule.getBundle().getVersion().toString());
return descriptorImpl;
}
}