| AmazonRankingsPreferencesValidator.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portlet.amazonrankings;
24
25 import com.liferay.portlet.amazonrankings.model.AmazonRankings;
26 import com.liferay.portlet.amazonrankings.util.AmazonRankingsUtil;
27
28 import java.util.ArrayList;
29 import java.util.List;
30
31 import javax.portlet.PortletPreferences;
32 import javax.portlet.PreferencesValidator;
33 import javax.portlet.ValidatorException;
34
35 /**
36 * <a href="AmazonRankingsPreferencesValidator.java.html"><b><i>View Source</i>
37 * </b></a>
38 *
39 * @author Brian Wing Shun Chan
40 *
41 */
42 public class AmazonRankingsPreferencesValidator
43 implements PreferencesValidator {
44
45 public void validate(PortletPreferences preferences)
46 throws ValidatorException {
47
48 List<String> badIsbns = new ArrayList<String>();
49
50 String[] isbns = preferences.getValues("isbns", new String[0]);
51
52 for (int i = 0; i < isbns.length; i++) {
53 AmazonRankings amazonRankings =
54 AmazonRankingsUtil.getAmazonRankings(isbns[i]);
55
56 if (amazonRankings == null) {
57 badIsbns.add(isbns[i]);
58 }
59 }
60
61 if (badIsbns.size() > 0) {
62 throw new ValidatorException(
63 "Failed to retrieve ISBNs", badIsbns);
64 }
65 }
66
67 }