/*
* ============================================================================
* GNU Lesser General Public License
* ============================================================================
*
* Beanlet - JSE Application Container.
* Copyright (C) 2006 Leon van Zantvoort
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* Leon van Zantvoort
* 243 Acalanes Drive #11
* Sunnyvale, CA 94086
* USA
*
* zantvoort@users.sourceforge.net
* http://beanlet.org
*/
package org.beanlet.impl;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Modifier;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import org.beanlet.common.AbstractProvider;
import org.jargo.ObjectFactory;
import org.jargo.ProxyGenerator;
import org.jargo.spi.ObjectFactoryProvider;
import org.jargo.ComponentConfiguration;
import org.jargo.ComponentCreationException;
/**
*
* @author Leon van Zantvoort
*/
public final class ObjectFactoryProviderImpl extends AbstractProvider
implements ObjectFactoryProvider {
public <T> ObjectFactory<T> getObjectFactory(
final ComponentConfiguration<T> configuration) {
return new ObjectFactory<T>() {
public T newInstance() {
try {
final Class<T> cls = configuration.getType();
Constructor<T> constructor = AccessController.doPrivileged(
new PrivilegedExceptionAction<Constructor<T>>() {
public Constructor<T> run() throws Exception {
// PERMISSION: java.lang.RuntimePermission accessDeclaredMembers
Constructor<T> constructor = cls.getDeclaredConstructor();
if (!Modifier.isPublic(constructor.getModifiers())) {
// PERMISSION: java.lang.reflect.ReflectPermission suppressAccessChecks
constructor.setAccessible(true);
}
return constructor;
}
});
try {
return constructor.newInstance();
} catch (InvocationTargetException e) {
throw e.getTargetException();
}
} catch (ComponentCreationException e) {
throw e;
} catch (PrivilegedActionException e) {
throw new ComponentCreationException(
configuration.getComponentName(), e.getException());
} catch (Error e) {
throw e;
} catch (Throwable t) {
// Errors are excluded.
throw new ComponentCreationException(
configuration.getComponentName(), t);
}
}
public T newInstance(ProxyGenerator<T> proxyGenerator) {
return proxyGenerator.generateProxy(new Class[0]);
}
};
}
}