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.messageboards.util;
016    
017    import com.liferay.portal.kernel.dao.orm.ActionableDynamicQuery;
018    import com.liferay.portal.kernel.dao.orm.DynamicQuery;
019    import com.liferay.portal.kernel.dao.orm.Property;
020    import com.liferay.portal.kernel.dao.orm.PropertyFactoryUtil;
021    import com.liferay.portal.kernel.dao.orm.QueryUtil;
022    import com.liferay.portal.kernel.exception.PortalException;
023    import com.liferay.portal.kernel.exception.SystemException;
024    import com.liferay.portal.kernel.log.Log;
025    import com.liferay.portal.kernel.log.LogFactoryUtil;
026    import com.liferay.portal.kernel.parsers.bbcode.BBCodeTranslatorUtil;
027    import com.liferay.portal.kernel.search.BaseIndexer;
028    import com.liferay.portal.kernel.search.BooleanClauseOccur;
029    import com.liferay.portal.kernel.search.BooleanQuery;
030    import com.liferay.portal.kernel.search.BooleanQueryFactoryUtil;
031    import com.liferay.portal.kernel.search.Document;
032    import com.liferay.portal.kernel.search.DocumentImpl;
033    import com.liferay.portal.kernel.search.Field;
034    import com.liferay.portal.kernel.search.Hits;
035    import com.liferay.portal.kernel.search.SearchContext;
036    import com.liferay.portal.kernel.search.SearchEngineUtil;
037    import com.liferay.portal.kernel.search.Summary;
038    import com.liferay.portal.kernel.util.GetterUtil;
039    import com.liferay.portal.kernel.util.HtmlUtil;
040    import com.liferay.portal.kernel.util.StringUtil;
041    import com.liferay.portal.kernel.util.Validator;
042    import com.liferay.portal.kernel.workflow.WorkflowConstants;
043    import com.liferay.portal.model.Group;
044    import com.liferay.portal.security.permission.ActionKeys;
045    import com.liferay.portal.security.permission.PermissionChecker;
046    import com.liferay.portal.service.persistence.GroupActionableDynamicQuery;
047    import com.liferay.portal.util.PortletKeys;
048    import com.liferay.portlet.messageboards.NoSuchDiscussionException;
049    import com.liferay.portlet.messageboards.model.MBCategory;
050    import com.liferay.portlet.messageboards.model.MBCategoryConstants;
051    import com.liferay.portlet.messageboards.model.MBMessage;
052    import com.liferay.portlet.messageboards.model.MBThread;
053    import com.liferay.portlet.messageboards.service.MBCategoryServiceUtil;
054    import com.liferay.portlet.messageboards.service.MBDiscussionLocalServiceUtil;
055    import com.liferay.portlet.messageboards.service.MBMessageLocalServiceUtil;
056    import com.liferay.portlet.messageboards.service.permission.MBMessagePermission;
057    import com.liferay.portlet.messageboards.service.persistence.MBCategoryActionableDynamicQuery;
058    import com.liferay.portlet.messageboards.service.persistence.MBMessageActionableDynamicQuery;
059    
060    import java.util.ArrayList;
061    import java.util.Collection;
062    import java.util.List;
063    import java.util.Locale;
064    
065    import javax.portlet.PortletURL;
066    
067    /**
068     * @author Brian Wing Shun Chan
069     * @author Harry Mark
070     * @author Bruno Farache
071     * @author Raymond Aug??
072     */
073    public class MBIndexer extends BaseIndexer {
074    
075            public static final String[] CLASS_NAMES = {MBMessage.class.getName()};
076    
077            public static final String PORTLET_ID = PortletKeys.MESSAGE_BOARDS;
078    
079            @Override
080            public String[] getClassNames() {
081                    return CLASS_NAMES;
082            }
083    
084            @Override
085            public String getPortletId() {
086                    return PORTLET_ID;
087            }
088    
089            @Override
090            public boolean hasPermission(
091                            PermissionChecker permissionChecker, long entryClassPK,
092                            String actionId)
093                    throws Exception {
094    
095                    return MBMessagePermission.contains(
096                            permissionChecker, entryClassPK, ActionKeys.VIEW);
097            }
098    
099            @Override
100            public boolean isFilterSearch() {
101                    return _FILTER_SEARCH;
102            }
103    
104            @Override
105            public boolean isPermissionAware() {
106                    return _PERMISSION_AWARE;
107            }
108    
109            @Override
110            public void postProcessContextQuery(
111                            BooleanQuery contextQuery, SearchContext searchContext)
112                    throws Exception {
113    
114                    int status = GetterUtil.getInteger(
115                            searchContext.getAttribute(Field.STATUS),
116                            WorkflowConstants.STATUS_ANY);
117    
118                    if (status != WorkflowConstants.STATUS_ANY) {
119                            contextQuery.addRequiredTerm(Field.STATUS, status);
120                    }
121    
122                    boolean discussion = GetterUtil.getBoolean(
123                            searchContext.getAttribute("discussion"), false);
124    
125                    contextQuery.addRequiredTerm("discussion", discussion);
126    
127                    long threadId = GetterUtil.getLong(
128                            (String)searchContext.getAttribute("threadId"));
129    
130                    if (threadId > 0) {
131                            contextQuery.addRequiredTerm("threadId", threadId);
132                    }
133    
134                    long[] categoryIds = searchContext.getCategoryIds();
135    
136                    if ((categoryIds != null) && (categoryIds.length > 0)) {
137                            if (categoryIds[0] ==
138                                            MBCategoryConstants.DEFAULT_PARENT_CATEGORY_ID) {
139    
140                                    return;
141                            }
142    
143                            BooleanQuery categoriesQuery = BooleanQueryFactoryUtil.create(
144                                    searchContext);
145    
146                            for (long categoryId : categoryIds) {
147                                    try {
148                                            MBCategoryServiceUtil.getCategory(categoryId);
149                                    }
150                                    catch (Exception e) {
151                                            continue;
152                                    }
153    
154                                    categoriesQuery.addTerm(Field.CATEGORY_ID, categoryId);
155                            }
156    
157                            contextQuery.add(categoriesQuery, BooleanClauseOccur.MUST);
158                    }
159            }
160    
161            @Override
162            protected void doDelete(Object obj) throws Exception {
163                    SearchContext searchContext = new SearchContext();
164    
165                    searchContext.setSearchEngineId(getSearchEngineId());
166    
167                    if (obj instanceof MBCategory) {
168                            MBCategory category = (MBCategory)obj;
169    
170                            BooleanQuery booleanQuery = BooleanQueryFactoryUtil.create(
171                                    searchContext);
172    
173                            booleanQuery.addRequiredTerm(Field.PORTLET_ID, PORTLET_ID);
174    
175                            booleanQuery.addRequiredTerm(
176                                    "categoryId", category.getCategoryId());
177    
178                            Hits hits = SearchEngineUtil.search(
179                                    getSearchEngineId(), category.getCompanyId(), booleanQuery,
180                                    QueryUtil.ALL_POS, QueryUtil.ALL_POS);
181    
182                            for (int i = 0; i < hits.getLength(); i++) {
183                                    Document document = hits.doc(i);
184    
185                                    SearchEngineUtil.deleteDocument(
186                                            getSearchEngineId(), category.getCompanyId(),
187                                            document.get(Field.UID));
188                            }
189                    }
190                    else if (obj instanceof MBMessage) {
191                            MBMessage message = (MBMessage)obj;
192    
193                            Document document = new DocumentImpl();
194    
195                            document.addUID(PORTLET_ID, message.getMessageId());
196    
197                            SearchEngineUtil.deleteDocument(
198                                    getSearchEngineId(), message.getCompanyId(),
199                                    document.get(Field.UID));
200                    }
201                    else if (obj instanceof MBThread) {
202                            MBThread thread = (MBThread)obj;
203    
204                            MBMessage message = MBMessageLocalServiceUtil.getMessage(
205                                    thread.getRootMessageId());
206    
207                            BooleanQuery booleanQuery = BooleanQueryFactoryUtil.create(
208                                    searchContext);
209    
210                            booleanQuery.addRequiredTerm(Field.PORTLET_ID, PORTLET_ID);
211    
212                            booleanQuery.addRequiredTerm("threadId", thread.getThreadId());
213    
214                            Hits hits = SearchEngineUtil.search(
215                                    getSearchEngineId(), message.getCompanyId(), booleanQuery,
216                                    QueryUtil.ALL_POS, QueryUtil.ALL_POS);
217    
218                            for (int i = 0; i < hits.getLength(); i++) {
219                                    Document document = hits.doc(i);
220    
221                                    SearchEngineUtil.deleteDocument(
222                                            getSearchEngineId(), message.getCompanyId(),
223                                            document.get(Field.UID));
224                            }
225                    }
226            }
227    
228            @Override
229            protected Document doGetDocument(Object obj) throws Exception {
230                    MBMessage message = (MBMessage)obj;
231    
232                    Document document = getBaseModelDocument(PORTLET_ID, message);
233    
234                    document.addKeyword(Field.CATEGORY_ID, message.getCategoryId());
235                    document.addText(Field.CONTENT, processContent(message));
236                    document.addKeyword(
237                            Field.ROOT_ENTRY_CLASS_PK, message.getRootMessageId());
238                    document.addText(Field.TITLE, message.getSubject());
239    
240                    if (message.isAnonymous()) {
241                            document.remove(Field.USER_NAME);
242                    }
243    
244                    try {
245                            MBDiscussionLocalServiceUtil.getThreadDiscussion(
246                                    message.getThreadId());
247    
248                            document.addKeyword("discussion", true);
249                    }
250                    catch (NoSuchDiscussionException nsde) {
251                            document.addKeyword("discussion", false);
252                    }
253    
254                    document.addKeyword("threadId", message.getThreadId());
255    
256                    return document;
257            }
258    
259            @Override
260            protected Summary doGetSummary(
261                    Document document, Locale locale, String snippet,
262                    PortletURL portletURL) {
263    
264                    String title = document.get(Field.TITLE);
265    
266                    String content = snippet;
267    
268                    if (Validator.isNull(snippet)) {
269                            content = StringUtil.shorten(document.get(Field.CONTENT), 200);
270                    }
271    
272                    String messageId = document.get(Field.ENTRY_CLASS_PK);
273    
274                    portletURL.setParameter(
275                            "struts_action", "/message_boards/view_message");
276                    portletURL.setParameter("messageId", messageId);
277    
278                    return new Summary(title, content, portletURL);
279            }
280    
281            @Override
282            protected void doReindex(Object obj) throws Exception {
283                    MBMessage message = (MBMessage)obj;
284    
285                    if (message.isDiscussion() ||
286                            (message.getStatus() != WorkflowConstants.STATUS_APPROVED)) {
287    
288                            return;
289                    }
290    
291                    Document document = getDocument(message);
292    
293                    SearchEngineUtil.updateDocument(
294                            getSearchEngineId(), message.getCompanyId(), document);
295            }
296    
297            @Override
298            protected void doReindex(String className, long classPK) throws Exception {
299                    MBMessage message = MBMessageLocalServiceUtil.getMessage(classPK);
300    
301                    doReindex(message);
302    
303                    if (message.isRoot()) {
304                            List<MBMessage> messages =
305                                    MBMessageLocalServiceUtil.getThreadMessages(
306                                            message.getThreadId(), WorkflowConstants.STATUS_APPROVED);
307    
308                            for (MBMessage curMessage : messages) {
309                                    reindex(curMessage);
310                            }
311                    }
312                    else {
313                            reindex(message);
314                    }
315            }
316    
317            @Override
318            protected void doReindex(String[] ids) throws Exception {
319                    long companyId = GetterUtil.getLong(ids[0]);
320    
321                    reindexCategories(companyId);
322                    reindexRoot(companyId);
323            }
324    
325            @Override
326            protected String getPortletId(SearchContext searchContext) {
327                    return PORTLET_ID;
328            }
329    
330            protected String processContent(MBMessage message) {
331                    String content = message.getBody();
332    
333                    try {
334                            if (message.isFormatBBCode()) {
335                                    content = BBCodeTranslatorUtil.getHTML(content);
336                            }
337                    }
338                    catch (Exception e) {
339                            _log.error(
340                                    "Could not parse message " + message.getMessageId() + ": " +
341                                            e.getMessage());
342                    }
343    
344                    content = HtmlUtil.extractText(content);
345    
346                    return content;
347            }
348    
349            protected void reindexCategories(final long companyId)
350                    throws PortalException, SystemException {
351    
352                    ActionableDynamicQuery actionableDynamicQuery =
353                            new MBCategoryActionableDynamicQuery() {
354    
355                            @Override
356                            protected void performAction(Object object)
357                                    throws PortalException, SystemException {
358    
359                                    MBCategory category = (MBCategory)object;
360    
361                                    reindexMessages(
362                                            companyId, category.getGroupId(), category.getCategoryId());
363                            }
364    
365                    };
366    
367                    actionableDynamicQuery.setCompanyId(companyId);
368    
369                    actionableDynamicQuery.performActions();
370            }
371    
372            protected void reindexMessages(
373                            long companyId, long groupId, final long categoryId)
374                    throws PortalException, SystemException {
375    
376                    final Collection<Document> documents = new ArrayList<Document>();
377    
378                    ActionableDynamicQuery actionableDynamicQuery =
379                            new MBMessageActionableDynamicQuery() {
380    
381                            @Override
382                            protected void addCriteria(DynamicQuery dynamicQuery) {
383                                    Property categoryIdProperty = PropertyFactoryUtil.forName(
384                                            "categoryId");
385    
386                                    dynamicQuery.add(categoryIdProperty.eq(categoryId));
387    
388                                    Property statusProperty = PropertyFactoryUtil.forName("status");
389    
390                                    dynamicQuery.add(
391                                            statusProperty.eq(WorkflowConstants.STATUS_APPROVED));
392                            }
393    
394                            @Override
395                            protected void performAction(Object object) throws PortalException {
396                                    MBMessage message = (MBMessage)object;
397    
398                                    Document document = getDocument(message);
399    
400                                    documents.add(document);
401                            }
402    
403                    };
404    
405                    actionableDynamicQuery.setGroupId(groupId);
406    
407                    actionableDynamicQuery.performActions();
408    
409                    SearchEngineUtil.updateDocuments(
410                            getSearchEngineId(), companyId, documents);
411            }
412    
413            protected void reindexRoot(final long companyId)
414                    throws PortalException, SystemException {
415    
416                    ActionableDynamicQuery actionableDynamicQuery =
417                            new GroupActionableDynamicQuery() {
418    
419                            @Override
420                            protected void performAction(Object object)
421                                    throws PortalException, SystemException {
422    
423                                    Group group = (Group)object;
424    
425                                    reindexMessages(
426                                            companyId, group.getGroupId(),
427                                            MBCategoryConstants.DEFAULT_PARENT_CATEGORY_ID);
428                            }
429    
430                    };
431    
432                    actionableDynamicQuery.setCompanyId(companyId);
433    
434                    actionableDynamicQuery.performActions();
435            }
436    
437            private static final boolean _FILTER_SEARCH = true;
438    
439            private static final boolean _PERMISSION_AWARE = true;
440    
441            private static Log _log = LogFactoryUtil.getLog(MBIndexer.class);
442    
443    }