Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.polls.internal.search; import com.liferay.polls.model.PollsQuestion; import com.liferay.polls.service.PollsQuestionLocalService; import com.liferay.portal.kernel.dao.orm.ActionableDynamicQuery; import com.liferay.portal.kernel.dao.orm.IndexableActionableDynamicQuery; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.log.Log; import com.liferay.portal.kernel.log.LogFactoryUtil; import com.liferay.portal.kernel.search.BaseIndexer; import com.liferay.portal.kernel.search.Document; import com.liferay.portal.kernel.search.Field; import com.liferay.portal.kernel.search.IndexWriterHelper; import com.liferay.portal.kernel.search.Indexer; import com.liferay.portal.kernel.search.Summary; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portal.kernel.util.StringBundler; import com.liferay.portal.kernel.util.StringPool; import java.util.Locale; import javax.portlet.PortletRequest; import javax.portlet.PortletResponse; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; /** * @author Lino Alves */ @Component(immediate = true, service = Indexer.class) public class PollsQuestionIndexer extends BaseIndexer<PollsQuestion> { public static final String CLASS_NAME = PollsQuestion.class.getName(); public PollsQuestionIndexer() { setDefaultSelectedFieldNames(Field.ASSET_TAG_NAMES, Field.CREATE_DATE, Field.COMPANY_ID, Field.DESCRIPTION, Field.ENTRY_CLASS_NAME, Field.ENTRY_CLASS_PK, Field.GROUP_ID, Field.SCOPE_GROUP_ID, Field.TITLE, Field.UID); setFilterSearch(true); } @Override public String getClassName() { return CLASS_NAME; } @Override protected void doDelete(PollsQuestion pollsQuestion) throws Exception { deleteDocument(pollsQuestion.getCompanyId(), pollsQuestion.getQuestionId()); } @Override protected Document doGetDocument(PollsQuestion pollsQuestion) throws Exception { Document document = getBaseModelDocument(CLASS_NAME, pollsQuestion); document.addDateSortable(Field.CREATE_DATE, pollsQuestion.getCreateDate()); document.addText(Field.DESCRIPTION, getDescriptionField(pollsQuestion)); document.addText(Field.TITLE, getTitleField(pollsQuestion)); return document; } @Override protected Summary doGetSummary(Document document, Locale locale, String snippet, PortletRequest portletRequest, PortletResponse portletResponse) throws Exception { Summary summary = createSummary(document); summary.setMaxContentLength(200); return summary; } @Override protected void doReindex(PollsQuestion pollsQuestion) throws Exception { Document document = getDocument(pollsQuestion); indexWriterHelper.updateDocument(getSearchEngineId(), pollsQuestion.getCompanyId(), document, isCommitImmediately()); } @Override protected void doReindex(String className, long classPK) throws Exception { PollsQuestion pollsQuestion = pollsQuestionLocalService.getPollsQuestion(classPK); doReindex(pollsQuestion); } @Override protected void doReindex(String[] ids) throws Exception { long companyId = GetterUtil.getLong(ids[0]); reindexEntries(companyId); } protected String getDescriptionField(PollsQuestion pollsQuestion) { String[] availableLanguageIds = pollsQuestion.getAvailableLanguageIds(); StringBundler sb = new StringBundler(); for (String languageId : availableLanguageIds) { sb.append(pollsQuestion.getDescription(languageId)); sb.append(StringPool.SPACE); } return sb.toString(); } protected String getTitleField(PollsQuestion pollsQuestion) { String[] availableLanguageIds = pollsQuestion.getAvailableLanguageIds(); StringBundler sb = new StringBundler(); for (String languageId : availableLanguageIds) { sb.append(pollsQuestion.getTitle(languageId)); sb.append(StringPool.SPACE); } return sb.toString(); } protected void reindexEntries(long companyId) throws PortalException { final IndexableActionableDynamicQuery indexableActionableDynamicQuery = pollsQuestionLocalService .getIndexableActionableDynamicQuery(); indexableActionableDynamicQuery.setCompanyId(companyId); indexableActionableDynamicQuery .setPerformActionMethod(new ActionableDynamicQuery.PerformActionMethod<PollsQuestion>() { @Override public void performAction(PollsQuestion pollsQuestion) { try { Document document = getDocument(pollsQuestion); indexableActionableDynamicQuery.addDocuments(document); } catch (PortalException pe) { if (_log.isWarnEnabled()) { _log.warn("Unable to index Polls Question " + pollsQuestion.getQuestionId(), pe); } } } }); indexableActionableDynamicQuery.setSearchEngineId(getSearchEngineId()); indexableActionableDynamicQuery.performActions(); } @Reference protected IndexWriterHelper indexWriterHelper; @Reference protected PollsQuestionLocalService pollsQuestionLocalService; private static final Log _log = LogFactoryUtil.getLog(PollsQuestionIndexer.class); }