/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.myfaces.commons.validator;
  
  import javax.faces.application.FacesMessage;
  import javax.faces.component.UIComponent;
  import javax.faces.context.FacesContext;
  import javax.faces.validator.ValidatorException;
  
  import org.apache.commons.validator.GenericValidator;
  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFValidator;
  
  
  /**
   * A custom validator for email address format, based upons Jakarta Commons.
   * 
   * Unless otherwise specified, all attributes accept static values or EL expressions.
   * 
   *   
   * @author mwessendorf (latest modification by $Author: lu4242 $)
   * @version $Revision: 1021620 $ $Date: 2010-10-11 23:09:48 -0500 (Mon, 11 Oct 2010) $
   */
  @JSFValidator(
     name = "mcv:validateEmail",
     tagClass = "org.apache.myfaces.commons.validator.ValidateEmailTag",
     serialuidtag = "6041422002721046221L")
  public class EmailValidator extends ValidatorBase {
  
      /**
       * <p>The standard converter id for this converter.</p>
       */
      public static final String     VALIDATOR_ID        = "org.apache.myfaces.commons.validator.Email";
      /**
       * <p>The message identifier of the {@link FacesMessage} to be created if
       * the maximum length check fails.</p>
       */
      public static final String EMAIL_MESSAGE_ID = "org.apache.myfaces.commons.validator.Email.INVALID";
  
      public EmailValidator(){
      }
  
      /**
       * methode that validates an email-address.
       * it uses the commons-validator
       */
      public void validate(
          FacesContext facesContext,
          UIComponent uiComponent,
          Object value)
          throws ValidatorException {
  
  
              if (facesContext == null) throw new NullPointerException("facesContext");
              if (uiComponent == null) throw new NullPointerException("uiComponent");
  
              if (value == null)
              {
                  return;
              }
              if (!GenericValidator.isEmail(value.toString().trim())) {
                  Object[] args = {value.toString()};
                  throw new ValidatorException(getFacesMessage(EMAIL_MESSAGE_ID, args));
              }
  
      }
  
  }