| AmazonRankingsPreferencesValidator.java |
1 /**
2 * Copyright (c) 2000-2009 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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20 package com.liferay.portlet.amazonrankings;
21
22 import com.liferay.portlet.amazonrankings.model.AmazonRankings;
23 import com.liferay.portlet.amazonrankings.util.AmazonRankingsUtil;
24
25 import java.util.ArrayList;
26 import java.util.List;
27
28 import javax.portlet.PortletPreferences;
29 import javax.portlet.PreferencesValidator;
30 import javax.portlet.ValidatorException;
31
32 /**
33 * <a href="AmazonRankingsPreferencesValidator.java.html"><b><i>View Source</i>
34 * </b></a>
35 *
36 * @author Brian Wing Shun Chan
37 *
38 */
39 public class AmazonRankingsPreferencesValidator
40 implements PreferencesValidator {
41
42 public void validate(PortletPreferences prefs) throws ValidatorException {
43 List<String> badIsbns = new ArrayList<String>();
44
45 String[] isbns = prefs.getValues("isbns", new String[0]);
46
47 for (int i = 0; i < isbns.length; i++) {
48 AmazonRankings amazonRankings =
49 AmazonRankingsUtil.getAmazonRankings(isbns[i]);
50
51 if (amazonRankings == null) {
52 badIsbns.add(isbns[i]);
53 }
54 }
55
56 if (badIsbns.size() > 0) {
57 throw new ValidatorException(
58 "Failed to retrieve ISBNs", badIsbns);
59 }
60 }
61
62 }