org.jboss.jca.deployers.fungal.BeanValidation Maven / Gradle / Ivy

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2009, 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.jca.deployers.fungal;

import java.util.Arrays;
import java.util.List;
import java.util.Set;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.validation.ConstraintViolationException;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;

import javax.validation.groups.Default;

import org.jboss.logging.Logger;

/**
 * 
 * @author Jeff Zhang
 * @author Jesper Pedersen
 * @version $Revision: $
 */
public class BeanValidation
{
   private static Logger log = Logger.getLogger(BeanValidation.class);
   private static boolean trace = log.isTraceEnabled();

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

   /**
    * Validate the object against the Bean Validation specification (JSR-303).
    * The object must be fully initialized
    * @param object The object that should be validated
    * @param groupsClasses groups targeted for validation
    * @exception ConstraintViolationException Thrown if the object can't be validated
    */
   @SuppressWarnings("unchecked")
   public void validate(Object object, List groupsClasses) throws ConstraintViolationException
   {
      if (object == null)
      {
         throw new IllegalArgumentException("Object is null");
      }

      Context context = null;
      try
      {
         context = new InitialContext();

         ValidatorFactory vf = (ValidatorFactory)context.lookup("java:/ValidatorFactory");
         Validator v = vf.usingContext().traversableResolver(new JCATraversableResolver()).getValidator();

         Set errors = null;
         if (groupsClasses == null || groupsClasses.size() == 0)
         {
            if (trace)
               log.trace("Validating: " + object + " against groups " + Default.class.getName());

            errors = v.validate(object, Default.class);
         }
         else
         {
            Class[] vargs = groupsClasses.toArray(new Class[groupsClasses.size()]);

            if (trace)
               log.trace("Validating: " + object + " against groups " + Arrays.toString(vargs));

            errors = v.validate(object, vargs);
         }

         if (errors != null && errors.size() > 0)
         {
            throw new ConstraintViolationException(errors);
         }
      }
      catch (NamingException ne)
      {
         log.error(ne.getMessage(), ne);
      }
      finally
      {
         try
         {
            if (context != null)
               context.close();
         }
         catch (NamingException ne)
         {
            // Ignore
         }
      }
   }
}