| AmazonRankingsPreferencesValidator.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 *
12 *
13 */
14
15 package com.liferay.portlet.amazonrankings;
16
17 import com.liferay.portlet.amazonrankings.model.AmazonRankings;
18 import com.liferay.portlet.amazonrankings.util.AmazonRankingsUtil;
19
20 import java.util.ArrayList;
21 import java.util.List;
22
23 import javax.portlet.PortletPreferences;
24 import javax.portlet.PreferencesValidator;
25 import javax.portlet.ValidatorException;
26
27 /**
28 * <a href="AmazonRankingsPreferencesValidator.java.html"><b><i>View Source</i>
29 * </b></a>
30 *
31 * @author Brian Wing Shun Chan
32 */
33 public class AmazonRankingsPreferencesValidator
34 implements PreferencesValidator {
35
36 public void validate(PortletPreferences prefs) throws ValidatorException {
37 List<String> badIsbns = new ArrayList<String>();
38
39 String[] isbns = prefs.getValues("isbns", new String[0]);
40
41 for (int i = 0; i < isbns.length; i++) {
42 AmazonRankings amazonRankings =
43 AmazonRankingsUtil.getAmazonRankings(isbns[i]);
44
45 if (amazonRankings == null) {
46 badIsbns.add(isbns[i]);
47 }
48 }
49
50 if (badIsbns.size() > 0) {
51 throw new ValidatorException(
52 "Failed to retrieve ISBNs", badIsbns);
53 }
54 }
55
56 }