/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.ejb3.deployment.processors.dd;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Collections;
import org.jboss.as.ejb3.logging.EjbLogger;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.reflect.ClassReflectionIndex;
import org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex;
import org.jboss.metadata.ejb.spec.MethodMetaData;
import org.jboss.metadata.ejb.spec.MethodParametersMetaData;
import org.jboss.metadata.ejb.spec.NamedMethodMetaData;
/**
* @author Stuart Douglas
*/
public class MethodResolutionUtils {
public static Method resolveMethod(final NamedMethodMetaData methodData, final Class<?> componentClass, final DeploymentReflectionIndex reflectionIndex) throws DeploymentUnitProcessingException {
return resolveMethod(methodData.getMethodName(), methodData.getMethodParams(), componentClass, reflectionIndex);
}
public static Method resolveMethod(final MethodMetaData methodData, final Class<?> componentClass, final DeploymentReflectionIndex reflectionIndex) throws DeploymentUnitProcessingException {
return resolveMethod(methodData.getMethodName(), methodData.getMethodParams(), componentClass, reflectionIndex);
}
public static Collection<Method> resolveMethods(final NamedMethodMetaData methodData, final Class<?> componentClass, final DeploymentReflectionIndex reflectionIndex) throws DeploymentUnitProcessingException {
return resolveMethods(methodData.getMethodName(), methodData.getMethodParams(), componentClass, reflectionIndex);
}
public static Method resolveMethod(final String methodName, final MethodParametersMetaData parameters, final Class<?> componentClass, final DeploymentReflectionIndex reflectionIndex) throws DeploymentUnitProcessingException {
final Collection<Method> method = resolveMethods(methodName, parameters, componentClass, reflectionIndex);
if(method.size() >1) {
throw EjbLogger.ROOT_LOGGER.moreThanOneMethodWithSameNameOnComponent(methodName, componentClass);
}
return method.iterator().next();
}
public static Collection<Method> resolveMethods(final String methodName, final MethodParametersMetaData parameters, final Class<?> componentClass, final DeploymentReflectionIndex reflectionIndex) throws DeploymentUnitProcessingException {
Class<?> clazz = componentClass;
while (clazz != Object.class && clazz != null) {
final ClassReflectionIndex classIndex = reflectionIndex.getClassIndex(clazz);
if (parameters == null) {
final Collection<Method> methods = classIndex.getAllMethods(methodName);
if(!methods.isEmpty()) {
return methods;
}
} else {
final Collection<Method> methods = classIndex.getAllMethods(methodName, parameters.size());
for (final Method method : methods) {
boolean match = true;
for (int i = 0; i < method.getParameterTypes().length; ++i) {
if (!method.getParameterTypes()[i].getName().equals(parameters.get(i))) {
match = false;
break;
}
}
if (match) {
return Collections.singleton(method);
}
}
}
clazz = clazz.getSuperclass();
}
throw EjbLogger.ROOT_LOGGER.failToFindMethodInEjbJarXml(componentClass.getName(), methodName);
}
}