001    /**
002     * Copyright (c) 2000-2010 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.journal.action;
016    
017    import com.liferay.portal.kernel.dao.search.DAOParamUtil;
018    import com.liferay.portal.kernel.language.LanguageUtil;
019    import com.liferay.portal.kernel.log.Log;
020    import com.liferay.portal.kernel.log.LogFactoryUtil;
021    import com.liferay.portal.kernel.util.ContentTypes;
022    import com.liferay.portal.kernel.util.DateUtil;
023    import com.liferay.portal.kernel.util.GetterUtil;
024    import com.liferay.portal.kernel.util.OrderByComparator;
025    import com.liferay.portal.kernel.util.ParamUtil;
026    import com.liferay.portal.kernel.util.StringPool;
027    import com.liferay.portal.kernel.util.StringUtil;
028    import com.liferay.portal.kernel.util.Validator;
029    import com.liferay.portal.kernel.workflow.WorkflowConstants;
030    import com.liferay.portal.kernel.xml.Document;
031    import com.liferay.portal.kernel.xml.Element;
032    import com.liferay.portal.kernel.xml.SAXReaderUtil;
033    import com.liferay.portal.theme.ThemeDisplay;
034    import com.liferay.portal.util.PortalUtil;
035    import com.liferay.portal.util.WebKeys;
036    import com.liferay.portlet.journal.model.JournalArticle;
037    import com.liferay.portlet.journal.service.JournalArticleLocalServiceUtil;
038    import com.liferay.portlet.journal.util.JournalUtil;
039    import com.liferay.portlet.journal.util.comparator.ArticleDisplayDateComparator;
040    import com.liferay.portlet.journal.util.comparator.ArticleModifiedDateComparator;
041    import com.liferay.util.servlet.ServletResponseUtil;
042    
043    import java.text.DateFormat;
044    
045    import java.util.Date;
046    import java.util.List;
047    import java.util.Map;
048    
049    import javax.servlet.http.HttpServletRequest;
050    import javax.servlet.http.HttpServletResponse;
051    
052    import org.apache.struts.action.Action;
053    import org.apache.struts.action.ActionForm;
054    import org.apache.struts.action.ActionForward;
055    import org.apache.struts.action.ActionMapping;
056    
057    /**
058     * @author Raymond Augé
059     * @author Brian Wing Shun Chan
060     */
061    public class GetArticlesAction extends Action {
062    
063            public ActionForward execute(
064                            ActionMapping mapping, ActionForm form, HttpServletRequest request,
065                            HttpServletResponse response)
066                    throws Exception {
067    
068                    try {
069                            List<JournalArticle> articles = getArticles(request);
070    
071                            String fileName = null;
072                            byte[] bytes = getContent(request, articles);
073    
074                            ServletResponseUtil.sendFile(
075                                    request, response, fileName, bytes, ContentTypes.TEXT_XML_UTF8);
076    
077                            return null;
078                    }
079                    catch (Exception e) {
080                            PortalUtil.sendError(e, request, response);
081    
082                            return null;
083                    }
084            }
085    
086            protected List<JournalArticle> getArticles(HttpServletRequest request)
087                    throws Exception {
088    
089                    long companyId = PortalUtil.getCompanyId(request);
090                    long groupId = DAOParamUtil.getLong(request, "groupId");
091                    String articleId = null;
092                    Double version = null;
093                    String title = null;
094                    String description = null;
095                    String content = null;
096                    String type = DAOParamUtil.getString(request, "type");
097                    String[] structureIds = StringUtil.split(
098                            DAOParamUtil.getString(request, "structureId"));
099                    String[] templateIds = StringUtil.split(
100                            DAOParamUtil.getString(request, "templateId"));
101    
102                    Date displayDateGT = null;
103    
104                    String displayDateGTParam = ParamUtil.getString(
105                            request, "displayDateGT");
106    
107                    if (Validator.isNotNull(displayDateGTParam)) {
108                            DateFormat displayDateGTFormat = DateUtil.getISOFormat(
109                                    displayDateGTParam);
110    
111                            displayDateGT = GetterUtil.getDate(
112                                    displayDateGTParam, displayDateGTFormat);
113                    }
114    
115                    if (_log.isDebugEnabled()) {
116                            _log.debug("displayDateGT is " + displayDateGT);
117                    }
118    
119                    Date displayDateLT = null;
120    
121                    String displayDateLTParam = ParamUtil.getString(
122                            request, "displayDateLT");
123    
124                    if (Validator.isNotNull(displayDateLTParam)) {
125                            DateFormat displayDateLTFormat = DateUtil.getISOFormat(
126                                    displayDateLTParam);
127    
128                            displayDateLT = GetterUtil.getDate(
129                                    displayDateLTParam, displayDateLTFormat);
130                    }
131    
132                    if (displayDateLT == null) {
133                            displayDateLT = new Date();
134                    }
135    
136                    if (_log.isDebugEnabled()) {
137                            _log.debug("displayDateLT is " + displayDateLT);
138                    }
139    
140                    int status = WorkflowConstants.STATUS_APPROVED;
141                    Date reviewDate = null;
142                    boolean andOperator = true;
143                    int start = 0;
144                    int end = ParamUtil.getInteger(request, "delta", 5);
145                    String orderBy = ParamUtil.getString(request, "orderBy");
146                    String orderByCol = ParamUtil.getString(request, "orderByCol", orderBy);
147                    String orderByType = ParamUtil.getString(request, "orderByType");
148                    boolean orderByAsc = orderByType.equals("asc");
149    
150                    OrderByComparator obc = new ArticleModifiedDateComparator(orderByAsc);
151    
152                    if (orderByCol.equals("display-date")) {
153                            obc = new ArticleDisplayDateComparator(orderByAsc);
154                    }
155    
156                    return JournalArticleLocalServiceUtil.search(
157                            companyId, groupId, articleId, version, title, description, content,
158                            type, structureIds, templateIds, displayDateGT, displayDateLT,
159                            status, reviewDate, andOperator, start, end, obc);
160            }
161    
162            protected byte[] getContent(
163                            HttpServletRequest request, List<JournalArticle> articles)
164                    throws Exception {
165    
166                    long groupId = ParamUtil.getLong(request, "groupId");
167    
168                    String languageId = LanguageUtil.getLanguageId(request);
169    
170                    ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
171                            WebKeys.THEME_DISPLAY);
172    
173                    Map<String, String> tokens = JournalUtil.getTokens(
174                            groupId, themeDisplay);
175    
176                    Document resultsDoc = SAXReaderUtil.createDocument(StringPool.UTF8);
177    
178                    Element resultSetEl = resultsDoc.addElement("result-set");
179    
180                    for (JournalArticle article : articles) {
181                            Element resultEl = resultSetEl.addElement("result");
182    
183                            Document articleDoc = SAXReaderUtil.read(
184                                    article.getContentByLocale(languageId));
185    
186                            resultEl.content().add(
187                                    articleDoc.getRootElement().createCopy());
188    
189                            resultEl = resultEl.element("root");
190    
191                            JournalUtil.addAllReservedEls(resultEl, tokens, article);
192                    }
193    
194                    return JournalUtil.formatXML(resultsDoc).getBytes(StringPool.UTF8);
195            }
196    
197            private static Log _log = LogFactoryUtil.getLog(GetArticlesAction.class);
198    
199    }