001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.rss;
016    
017    import com.liferay.portal.kernel.util.Validator;
018    
019    import java.util.ArrayList;
020    import java.util.List;
021    
022    import javax.portlet.PortletPreferences;
023    import javax.portlet.PreferencesValidator;
024    import javax.portlet.ValidatorException;
025    
026    /**
027     * @author Brian Wing Shun Chan
028     */
029    public class RSSPreferencesValidator implements PreferencesValidator {
030    
031            @Override
032            public void validate(PortletPreferences preferences)
033                    throws ValidatorException {
034    
035                    List<String> badURLs = new ArrayList<String>();
036    
037                    String[] urls = preferences.getValues("urls", new String[0]);
038    
039                    for (String url : urls) {
040                            if (!Validator.isUrl(url)) {
041                                    badURLs.add(url);
042                            }
043                    }
044    
045                    if (badURLs.size() > 0) {
046                            throw new ValidatorException("Failed to retrieve URLs", badURLs);
047                    }
048            }
049    
050    }