/**
* EasyBeans
* Copyright (C) 2007 Bull S.A.S.
* Contact: easybeans@ow2.org
*
* 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 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
*
* --------------------------------------------------------------------------
* $Id: TimerBeanValidator.java 5369 2010-02-24 14:58:19Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.deployment.annotations.helper.bean.checks;
import static org.ow2.easybeans.asm.Opcodes.ACC_FINAL;
import static org.ow2.easybeans.asm.Opcodes.ACC_STATIC;
import static org.ow2.easybeans.deployment.annotations.helper.bean.checks.AccessChecker.ensureNoAccess;
import org.ow2.easybeans.deployment.annotations.exceptions.InterceptorsValidationException;
import org.ow2.easybeans.deployment.metadata.ejbjar.EasyBeansEjbJarClassMetadata;
import org.ow2.easybeans.deployment.metadata.ejbjar.EasyBeansEjbJarMethodMetadata;
import org.ow2.easybeans.enhancer.bean.BeanClassAdapter;
/**
* This class ensures that the bean has no more than one timer method and that
* the signature of this method is valid.
* @author Florent Benoit
*/
public final class TimerBeanValidator {
/**
* Helper class, no public constructor.
*/
private TimerBeanValidator() {
}
/**
* Validate a bean (check timer objects).
* @param bean bean to validate.
*/
public static void validate(final EasyBeansEjbJarClassMetadata bean) {
// Existing timer method
EasyBeansEjbJarMethodMetadata alreadyFoundTimerMethod = null;
// Get timer method if any and do a call on this timer method
for (EasyBeansEjbJarMethodMetadata method : bean.getMethodMetadataCollection()) {
// Check if the timeout method is valid
if (method.isTimeout()) {
// There is already a timer method that have been found.
if (alreadyFoundTimerMethod != null) {
throw new InterceptorsValidationException(
"A bean cannot have more than one timer method, previous timer method is '" + alreadyFoundTimerMethod
+ "' while the new one is '" + method + "'.");
}
// flag this method as already found
alreadyFoundTimerMethod = method;
// Check that the signature is valid
// void and Timer parameter
if (!BeanClassAdapter.TIMER_JMETHOD.getDescriptor().equals(method.getJMethod().getDescriptor())) {
throw new InterceptorsValidationException("The timeout method '" + method
+ "' hasn't a valid signature. The valid signature should be '"
+ BeanClassAdapter.TIMER_JMETHOD.getDescriptor() + "'.");
}
// No static or final
ensureNoAccess(ACC_FINAL, method.getJMethod(), "Final", bean.getClassName());
ensureNoAccess(ACC_STATIC, method.getJMethod(), "Static", bean.getClassName());
}
}
}
}