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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.commons.validator;
20  
21  import javax.faces.application.FacesMessage;
22  import javax.faces.component.UIComponent;
23  import javax.faces.context.FacesContext;
24  import javax.faces.validator.ValidatorException;
25  
26  import org.apache.commons.validator.GenericValidator;
27  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFValidator;
28  
29  
30  /**
31   * A custom validator for email address format, based upons Jakarta Commons.
32   * 
33   * Unless otherwise specified, all attributes accept static values or EL expressions.
34   * 
35   *   
36   * @author mwessendorf (latest modification by $Author: lu4242 $)
37   * @version $Revision: 1021618 $ $Date: 2010-10-11 23:08:53 -0500 (Mon, 11 Oct 2010) $
38   */
39  @JSFValidator(
40     name = "mcv:validateEmail",
41     tagClass = "org.apache.myfaces.commons.validator.ValidateEmailTag",
42     serialuidtag = "6041422002721046221L")
43  public class EmailValidator extends ValidatorBase {
44  
45      /**
46       * <p>The standard converter id for this converter.</p>
47       */
48      public static final String     VALIDATOR_ID        = "org.apache.myfaces.commons.validator.Email";
49      /**
50       * <p>The message identifier of the {@link FacesMessage} to be created if
51       * the maximum length check fails.</p>
52       */
53      public static final String EMAIL_MESSAGE_ID = "org.apache.myfaces.commons.validator.Email.INVALID";
54  
55      public EmailValidator(){
56      }
57  
58      /**
59       * methode that validates an email-address.
60       * it uses the commons-validator
61       */
62      public void validate(
63          FacesContext facesContext,
64          UIComponent uiComponent,
65          Object value)
66          throws ValidatorException {
67  
68  
69              if (facesContext == null) throw new NullPointerException("facesContext");
70              if (uiComponent == null) throw new NullPointerException("uiComponent");
71  
72              if (value == null)
73              {
74                  return;
75              }
76              if (!GenericValidator.isEmail(value.toString().trim())) {
77                  Object[] args = {value.toString()};
78                  throw new ValidatorException(getFacesMessage(EMAIL_MESSAGE_ID, args));
79              }
80  
81      }
82  
83  }