| AmazonRankingsPreferencesValidator.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 *
5 *
6 *
7 * The contents of this file are subject to the terms of the Liferay Enterprise
8 * Subscription License ("License"). You may not use this file except in
9 * compliance with the License. You can obtain a copy of the License by
10 * contacting Liferay, Inc. See the License for the specific language governing
11 * permissions and limitations under the License, including but not limited to
12 * distribution rights 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 public class AmazonRankingsPreferencesValidator
42 implements PreferencesValidator {
43
44 public void validate(PortletPreferences prefs) throws ValidatorException {
45 List<String> badIsbns = new ArrayList<String>();
46
47 String[] isbns = prefs.getValues("isbns", new String[0]);
48
49 for (int i = 0; i < isbns.length; i++) {
50 AmazonRankings amazonRankings =
51 AmazonRankingsUtil.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(
60 "Failed to retrieve ISBNs", badIsbns);
61 }
62 }
63
64 }