01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.portlet.amazonrankings;
22:
23: import com.liferay.portlet.amazonrankings.model.AmazonRankings;
24: import com.liferay.portlet.amazonrankings.util.AmazonRankingsUtil;
25:
26: import java.util.ArrayList;
27: import java.util.List;
28:
29: import javax.portlet.PortletPreferences;
30: import javax.portlet.PreferencesValidator;
31: import javax.portlet.ValidatorException;
32:
33: /**
34: * <a href="AmazonRankingsPreferencesValidator.java.html"><b><i>View Source</i>
35: * </b></a>
36: *
37: * @author Brian Wing Shun Chan
38: *
39: */
40: public class AmazonRankingsPreferencesValidator implements
41: PreferencesValidator {
42:
43: public void validate(PortletPreferences prefs)
44: throws ValidatorException {
45: List badIsbns = new ArrayList();
46:
47: String[] isbns = prefs.getValues("isbns", new String[0]);
48:
49: for (int i = 0; i < isbns.length; i++) {
50: AmazonRankings amazonRankings = AmazonRankingsUtil
51: .getAmazonRankings(isbns[i]);
52:
53: if (amazonRankings == null) {
54: badIsbns.add(isbns[i]);
55: }
56: }
57:
58: if (badIsbns.size() > 0) {
59: throw new ValidatorException("Failed to retrieve ISBNs",
60: badIsbns);
61: }
62: }
63:
64: }
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