1 /*
2 * Copyright 2009-2013 smartics, Kronseder & Reiner GmbH
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package de.smartics.validation.constraints.impl;
17
18 import javax.mail.Session;
19 import javax.mail.Transport;
20 import javax.validation.ConstraintValidator;
21 import javax.validation.ConstraintValidatorContext;
22
23 import de.smartics.validation.constraints.Available;
24
25 /**
26 * Checks that the annotated resource is availability.
27 * <p>
28 * The timout parameter is not used by this implementation.
29 * </p>
30 */
31 public class MailServerAvailabilityValidator implements
32 ConstraintValidator<Available, Session>
33 {
34 // ******************************** Fields ********************************
35
36 // --- constants ----------------------------------------------------------
37
38 // --- members ------------------------------------------------------------
39
40 // ***************************** Initializer ******************************
41
42 // ***************************** Constructors *****************************
43
44 // ***************************** Inner Classes ****************************
45
46 // ******************************** Methods *******************************
47
48 // --- init ---------------------------------------------------------------
49
50 @Override
51 public void initialize(final Available constraintAnnotation)
52 {
53 }
54
55 // --- get&set ------------------------------------------------------------
56
57 // --- business -----------------------------------------------------------
58
59 @Override
60 public boolean isValid(final Session value,
61 final ConstraintValidatorContext constraintValidatorContext)
62 {
63 try
64 {
65 final Transport transport = value.getTransport("smtp");
66 final boolean valid = transport.isConnected();
67 return valid;
68 }
69 catch (final Exception e)
70 {
71 return false;
72 }
73 }
74
75 // --- object basics ------------------------------------------------------
76
77 }