1 /*
2 * (c) Copyright 2006-2020 by rapiddweller GmbH & Volker Bergmann. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, is permitted under the terms of the
6 * GNU General Public License.
7 *
8 * For redistributing this software or a derivative work under a license other
9 * than the GPL-compatible Free Software License as defined by the Free
10 * Software Foundation or approved by OSI, you must first obtain a commercial
11 * license to this software product from rapiddweller GmbH & Volker Bergmann.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
14 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
15 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
17 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 package com.rapiddweller.domain.address;
28
29 import com.rapiddweller.common.validator.bean.AbstractConstraintValidator;
30
31 import javax.validation.ConstraintValidatorContext;
32
33 /**
34 * Validates ISO-3166-1 alpha-2 country codes.<br/>
35 * <br/>
36 * Created at 12.07.2008 15:24:58
37 *
38 * @author Volker Bergmann
39 * @see "http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2"
40 * @since 0.5.4
41 */
42 public class CountryCode2Validator
43 extends AbstractConstraintValidator<CountryCode2, String> {
44
45 @Override
46 public boolean isValid(String countryCode,
47 ConstraintValidatorContext context) {
48 if (countryCode == null || countryCode.length() != 2) {
49 return false;
50 }
51 if (!Character.isLetter(countryCode.charAt(0))
52 || !Character.isLetter(countryCode.charAt(1))) {
53 return false;
54 }
55 return (Country.getInstance(countryCode) != null);
56 }
57
58 }