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
28
29 /**
30 * A custom validator for email address format, based upons Jakarta Commons.
31 *
32 * Unless otherwise specified, all attributes accept static values or EL expressions.
33 *
34 * @JSFValidator
35 * name = "mcv:validateEmail"
36 * tagClass = "org.apache.myfaces.commons.validator.ValidateEmailTag"
37 * serialuidtag = "6041422002721046221L"
38 *
39 * @author mwessendorf (latest modification by $Author: skitching $)
40 * @version $Revision: 673801 $ $Date: 2008-07-03 15:58:48 -0500 (Thu, 03 Jul 2008) $
41 */
42 public class EmailValidator extends ValidatorBase {
43
44 /**
45 * <p>The standard converter id for this converter.</p>
46 */
47 public static final String VALIDATOR_ID = "org.apache.myfaces.commons.validator.Email";
48 /**
49 * <p>The message identifier of the {@link FacesMessage} to be created if
50 * the maximum length check fails.</p>
51 */
52 public static final String EMAIL_MESSAGE_ID = "org.apache.myfaces.commons.validator.Email.INVALID";
53
54 public EmailValidator(){
55 }
56
57 /**
58 * methode that validates an email-address.
59 * it uses the commons-validator
60 */
61 public void validate(
62 FacesContext facesContext,
63 UIComponent uiComponent,
64 Object value)
65 throws ValidatorException {
66
67
68 if (facesContext == null) throw new NullPointerException("facesContext");
69 if (uiComponent == null) throw new NullPointerException("uiComponent");
70
71 if (value == null)
72 {
73 return;
74 }
75 if (!GenericValidator.isEmail(value.toString().trim())) {
76 Object[] args = {value.toString()};
77 throw new ValidatorException(getFacesMessage(EMAIL_MESSAGE_ID, args));
78 }
79
80 }
81
82 }