/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.injection;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Map;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.jboss.ejb3.annotation.Depends;
import org.jboss.logging.Logger;
import org.jboss.metadata.javaee.spec.RemoteEnvironment;
/**
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 67628 $
*/
public class DependsHandler<X extends RemoteEnvironment> implements InjectionHandler<X>
{
@SuppressWarnings("unused")
private static final Logger log = Logger.getLogger(DependsHandler.class);
public void loadXml(X xml, InjectionContainer container)
{
}
public void handleMethodAnnotations(Method method, InjectionContainer container, Map<AccessibleObject, Injector> injectors)
{
Depends dep = container.getAnnotation(Depends.class, method.getDeclaringClass(), method);
if (dep != null)
{
if (!method.getName().startsWith("set"))
throw new RuntimeException("@EJB can only be used with a set method: " + method);
String[] names = dep.value();
if (names.length != 1)
throw new RuntimeException("@Depends on a field can only take one object name: " + method);
ObjectName on = null;
try
{
on = new ObjectName(names[0]);
}
catch (MalformedObjectNameException e)
{
throw new RuntimeException(e);
}
// don't replace other injections
if (injectors.get(method) == null)
injectors.put(method, new DependsMethodInjector(method, on));
container.getDependencyPolicy().addDependency(names[0]);
}
}
public void handleFieldAnnotations(Field field, InjectionContainer container, Map<AccessibleObject, Injector> injectors)
{
Depends dep = container.getAnnotation(Depends.class, field.getDeclaringClass(), field);
if (dep != null)
{
String[] names = dep.value();
if (names.length != 1)
throw new RuntimeException("@Depends on a field can only take one object name: " + field);
ObjectName on = null;
try
{
on = new ObjectName(names[0]);
}
catch (MalformedObjectNameException e)
{
throw new RuntimeException(e);
}
// don't replace other injections
if (injectors.get(field) == null)
injectors.put(field, new DependsFieldInjector(field, on));
container.getDependencyPolicy().addDependency(names[0]);
}
}
public void handleClassAnnotations(Class<?> clazz, InjectionContainer container)
{
Depends dep = container.getAnnotation(Depends.class, clazz);
if (dep == null) return;
for (String dependency : dep.value())
{
container.getDependencyPolicy().addDependency(dependency);
}
}
}