/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., 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.as.ee.utils;
import org.jboss.as.ee.logging.EeLogger;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.reflect.ClassReflectionIndex;
import org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Locale;
/**
* Utility class for injection framework.
*
* @author <a href="mailto:ropalka@redhat.com">Richard Opalka</a>
* @author Eduardo Martins
*/
public final class InjectionUtils {
private InjectionUtils() {
// forbidden instantiation
}
public static AccessibleObject getInjectionTarget(final String injectionTargetClassName, final String injectionTargetName, final ClassLoader classLoader, final DeploymentReflectionIndex deploymentReflectionIndex) throws DeploymentUnitProcessingException {
final Class<?> injectionTargetClass;
try {
injectionTargetClass = classLoader.loadClass(injectionTargetClassName);
} catch (ClassNotFoundException e) {
throw EeLogger.ROOT_LOGGER.cannotLoad(e, injectionTargetClassName);
}
final ClassReflectionIndex index = deploymentReflectionIndex.getClassIndex(injectionTargetClass);
String methodName = "set" + injectionTargetName.substring(0, 1).toUpperCase(Locale.ENGLISH) + injectionTargetName.substring(1);
boolean methodFound = false;
Method method = null;
Field field = null;
Class<?> current = injectionTargetClass;
while (current != Object.class && current != null && !methodFound) {
final Collection<Method> methods = index.getAllMethods(methodName);
for (Method m : methods) {
if (m.getParameterTypes().length == 1) {
if (m.isBridge() || m.isSynthetic()) {
continue;
}
if (methodFound) {
throw EeLogger.ROOT_LOGGER.multipleSetterMethodsFound(injectionTargetName, injectionTargetClassName);
}
methodFound = true;
method = m;
}
}
current = current.getSuperclass();
}
if (method == null) {
current = injectionTargetClass;
while (current != Object.class && current != null && field == null) {
field = index.getField(injectionTargetName);
if (field != null) {
break;
}
current = current.getSuperclass();
}
}
if (field == null && method == null) {
throw EeLogger.ROOT_LOGGER.cannotResolveInjectionPoint(injectionTargetName, injectionTargetClassName);
}
return field != null ? field : method;
}
}