/*
 * IronJacamar, a Java EE Connector Architecture implementation
 * Copyright 2008-2009, 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.jca.validator.rules.mcf;

import org.jboss.jca.validator.Failure;
import org.jboss.jca.validator.Key;
import org.jboss.jca.validator.Rule;
import org.jboss.jca.validator.Severity;
import org.jboss.jca.validator.Validate;

import java.util.ArrayList;
import java.util.List;
import java.util.ResourceBundle;

import javax.resource.spi.ManagedConnectionFactory;

/**
 * ManagedConnectionFactory must have a hashCode implementation
 */
public class MCFHashCode implements Rule
{
   /** Section */
   private static final String SECTION = "6.5.3.2";

   /**
    * Constructor
    */
   public MCFHashCode()
   {
   }

   /**
    * Validate
    * @param vo The validate object
    * @param rb The resource bundle 
    * @return The list of failures found; <code>null</code> if none
    */
   @SuppressWarnings("unchecked")
   public List<Failure> validate(Validate vo, ResourceBundle rb)
   {
      if (vo != null && 
          Key.MANAGED_CONNECTION_FACTORY == vo.getKey() &&
          vo.getClazz() != null &&
          ManagedConnectionFactory.class.isAssignableFrom(vo.getClazz()))
      {
         boolean error = true;
         Class clz = vo.getClazz();

         while (error && !clz.equals(Object.class))
         {
            try
            {
               SecurityActions.getDeclaredMethod(clz, "hashCode", (Class[])null);
               error = false;
            }
            catch (Throwable t)
            {
               clz = clz.getSuperclass();
            }
         }

         if (error)
         {
            List<Failure> failures = new ArrayList<Failure>(1);

            Failure failure = new Failure(Severity.ERROR,
                                          SECTION,
                                          rb.getString("mcf.MCFHashCode"),
                                          vo.getClazz().getName());
            failures.add(failure);

            return failures;
         }
      }

      return null;
   }
}
