Java tutorial
/* * Copyright 2011-2013 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package kr.debop4j.search.dao; import com.google.common.collect.Lists; import kr.debop4j.core.Local; import kr.debop4j.core.collection.PaginatedList; import kr.debop4j.core.parallelism.AsyncTool; import kr.debop4j.core.tools.ArrayTool; import kr.debop4j.core.tools.StringTool; import kr.debop4j.data.hibernate.tools.HibernateTool; import kr.debop4j.data.hibernate.unitofwork.UnitOfWorks; import kr.debop4j.search.tools.SearchTool; import org.apache.lucene.search.Query; import org.apache.lucene.search.Sort; import org.hibernate.*; import org.hibernate.search.FullTextQuery; import org.hibernate.search.FullTextSession; import org.hibernate.search.Search; import org.hibernate.search.query.DatabaseRetrievalMethod; import org.hibernate.search.query.ObjectLookupMethod; import org.hibernate.search.query.dsl.QueryBuilder; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.Serializable; import java.util.ArrayList; import java.util.Collection; import java.util.List; import java.util.concurrent.Future; import static kr.debop4j.core.Guard.shouldNotBeNull; /** * hibernate-search ? Data Access Object . * * @author ? ( sunghyouk.bae@gmail.com ) * @since 13. 4. 20. 10:03 */ @SuppressWarnings("unchecked") public class HibernateSearchDao implements IHibernateSearchDao { private static final Logger log = LoggerFactory.getLogger(SearchDaoImpl.class); private static final boolean isTraceEnabled = log.isTraceEnabled(); private static final boolean isDebugEnabled = log.isDebugEnabled(); private static final int BATCH_SIZE = 100; @Override public synchronized final Session getSession() { return UnitOfWorks.getCurrentSession(); } @Override public synchronized final FullTextSession getFullTextSession() { FullTextSession fts = Local.get(FULL_TEXT_SESSION_KEY, FullTextSession.class); // Thread? FullTextSession? , ??? ? ? ? if (fts == null || !fts.isOpen()) { fts = Search.getFullTextSession(getSession()); Local.put(FULL_TEXT_SESSION_KEY, fts); log.debug(" FullTextSession? ?."); } return fts; } @Override public FullTextQuery getFullTextQuery(Query luceneQuery, Class<?>... entities) { FullTextQuery ftq = getFullTextSession().createFullTextQuery(luceneQuery, entities); /* hibernate-ogm ? DatabaseRetrievalMethod.FIND_BY_ID . */ ftq.initializeObjectsWith(ObjectLookupMethod.SKIP, DatabaseRetrievalMethod.FIND_BY_ID); return ftq; } @Override public QueryBuilder getQueryBuilder(Class<?> clazz) { return getFullTextSession().getSearchFactory().buildQueryBuilder().forEntity(clazz).get(); } @Override public <T> T get(Class<T> clazz, Serializable id) { return (T) getSession().get(clazz, id); } @Override public <T> List<T> findAll(Class<T> clazz) { return findAll(clazz, null); } @Override public <T> List<T> findAll(Class<T> clazz, Sort luceneSort) { if (isTraceEnabled) log.trace("[{}]? ...", clazz); Query luceneQuery = getQueryBuilder(clazz).all().createQuery(); FullTextQuery ftq = getFullTextQuery(luceneQuery, clazz); if (luceneSort != null) ftq.setSort(luceneSort); return ftq.list(); } @Override public <T> List<T> findAll(Class<T> clazz, Query luceneQuery, Sort sort, Criteria criteria) { return findAll(clazz, luceneQuery, -1, -1, sort, criteria); } @Override public <T> List<T> findAll(Class<T> clazz, Query luceneQuery, int firstResult, int maxResults, Sort sort) { return findAll(clazz, luceneQuery, firstResult, maxResults, sort, null); } @Override public <T> List<T> findAll(Class<T> clazz, Query luceneQuery, int firstResult, int maxResults, Sort sort, Criteria criteria) { if (isTraceEnabled) log.trace( " . clazz=[{}], luceneQuery=[{}], fitstResult=[{}], maxResults=[{}], sort=[{}], criteria=[{}]", clazz, luceneQuery, firstResult, maxResults, sort, criteria); if (luceneQuery == null) luceneQuery = getQueryBuilder(clazz).all().createQuery(); FullTextQuery ftq = getFullTextQuery(luceneQuery, clazz); HibernateTool.setPaging(ftq, firstResult, maxResults); if (sort != null) ftq.setSort(sort); if (criteria != null) ftq.setCriteriaQuery(criteria); return ftq.list(); } @Override public <T> PaginatedList<T> getPage(Class<T> clazz, Query luceneQuery, int pageNo, int pageSize) { return getPage(clazz, luceneQuery, pageNo, pageSize, null, null); } @Override public <T> PaginatedList<T> getPage(Class<T> clazz, Query luceneQuery, int pageNo, int pageSize, Sort sort) { return getPage(clazz, luceneQuery, pageNo, pageSize, sort, null); } @Override public <T> PaginatedList<T> getPage(Class<T> clazz, Query luceneQuery, int pageNo, int pageSize, Sort sort, Criteria criteria) { if (isDebugEnabled) log.debug( " . clazz=[{}], luceneQuery=[{}], pageNo=[{}], pageSize=[{}], sort=[{}], criteria=[{}]", clazz, luceneQuery, pageNo, pageSize, sort, criteria); if (luceneQuery == null) luceneQuery = getQueryBuilder(clazz).all().createQuery(); long itemCount = count(clazz, luceneQuery); FullTextQuery ftq = getFullTextQuery(luceneQuery, clazz); HibernateTool.setPaging(ftq, (pageNo - 1) * pageSize, pageSize); if (sort != null) ftq.setSort(sort); if (criteria != null) ftq.setCriteriaQuery(criteria); List<T> list = ftq.list(); return new PaginatedList<>(list, pageNo, pageSize, itemCount); } @Override public List<Serializable> getAllIds(Class<?> clazz, Query luceneQuery) { return getAllIds(clazz, luceneQuery, -1, -1, null, null); } @Override public List<Serializable> getAllIds(Class<?> clazz, Query luceneQuery, int firstResult, int maxResults, Sort sort) { return getAllIds(clazz, luceneQuery, firstResult, maxResults, sort, null); } @Override public List<Serializable> getAllIds(Class<?> clazz, Query luceneQuery, int firstResult, int maxResults, Sort sort, Criteria criteria) { List<Object[]> list = getProjections(clazz, luceneQuery, new String[] { FullTextQuery.ID }, firstResult, maxResults, sort, criteria); List<Serializable> ids = Lists.newArrayList(); for (Object[] fields : list) { ids.add((Serializable) fields[0]); } return ids; } @Override public PaginatedList<Serializable> getIdPage(Class<?> clazz, Query luceneQuery, int pageNo, int pageSize) { return getIdPage(clazz, luceneQuery, pageNo, pageSize, null, null); } @Override public PaginatedList<Serializable> getIdPage(Class<?> clazz, Query luceneQuery, int pageNo, int pageSize, Sort sort) { return getIdPage(clazz, luceneQuery, pageNo, pageSize, sort, null); } @Override public PaginatedList<Serializable> getIdPage(Class<?> clazz, Query luceneQuery, int pageNo, int pageSize, Sort sort, Criteria criteria) { long totalCount = count(clazz, luceneQuery); List<Object[]> list = getProjections(clazz, luceneQuery, new String[] { FullTextQuery.ID }, (pageNo - 1) * pageSize, pageSize, sort, criteria); List<Serializable> ids = Lists.newArrayList(); for (Object[] fields : list) { ids.add((Serializable) fields[0]); } return new PaginatedList<>(ids, pageNo, pageSize, totalCount); } @Override public List<Object[]> getProjections(Class<?> clazz, Query luceneQuery, String[] fields) { return getProjections(clazz, luceneQuery, fields, -1, -1, null, null); } @Override public List<Object[]> getProjections(Class<?> clazz, Query luceneQuery, String[] fields, Sort sort) { return getProjections(clazz, luceneQuery, fields, -1, -1, sort, null); } @Override public List<Object[]> getProjections(Class<?> clazz, Query luceneQuery, String[] fields, int firstResult, int maxResults, Sort sort, Criteria criteria) { assert fields != null; assert fields.length > 0; if (luceneQuery == null) luceneQuery = getQueryBuilder(clazz).all().createQuery(); FullTextQuery ftq = getFullTextQuery(luceneQuery, clazz); HibernateTool.setPaging(ftq, firstResult, maxResults); ftq.setProjection(fields); if (sort != null) ftq.setSort(sort); if (criteria != null) ftq.setCriteriaQuery(criteria); return ftq.list(); } @Override public PaginatedList<Object[]> getProjectionPage(Class<?> clazz, Query luceneQuery, String[] fields, int pageNo, int pageSize) { return getProjectionPage(clazz, luceneQuery, fields, pageNo, pageSize, null, null); } @Override public PaginatedList<Object[]> getProjectionPage(Class<?> clazz, Query luceneQuery, String[] fields, int pageNo, int pageSize, Sort sort) { return getProjectionPage(clazz, luceneQuery, fields, pageNo, pageSize, sort, null); } @Override public PaginatedList<Object[]> getProjectionPage(Class<?> clazz, Query luceneQuery, String[] fields, int pageNo, int pageSize, Sort sort, Criteria criteria) { long totalCount = count(clazz, luceneQuery, criteria); List<Object[]> list = getProjections(clazz, luceneQuery, fields, (pageNo - 1) * pageSize, pageSize, sort, criteria); return new PaginatedList<>(list, pageNo, pageSize, totalCount); } @Override public long count(Class<?> clazz) { return count(clazz, getQueryBuilder(clazz).all().createQuery()); } @Override public long count(Class<?> clazz, Query luceneQuery) { return count(clazz, luceneQuery, null); } @Override public long count(Class<?> clazz, Query luceneQuery, Criteria criteria) { FullTextQuery ftq = getFullTextQuery(luceneQuery, clazz); if (criteria != null) ftq.setCriteriaQuery(criteria); int count = ftq.getResultSize(); if (isTraceEnabled) log.trace("Entity=[{}], query=[{}] => count=[{}]", clazz, luceneQuery, count); return count; } @Override public void persist(Object entity) { getFullTextSession().persist(entity); } @Override public Object merge(Object entity) { return getFullTextSession().merge(entity); } @Override public Serializable save(Object entity) { return getFullTextSession().save(entity); } @Override public void saveOrUpdate(Object entity) { getFullTextSession().saveOrUpdate(entity); } @Override public void update(Object entity) { getFullTextSession().update(entity); } @Override public void delete(Object entity) { getFullTextSession().delete(entity); } @Override public void deleteById(Class<?> clazz, Serializable id) { try { Object entity = getFullTextSession().load(clazz, id); delete(entity); } catch (Exception t) { log.warn( " ? . ? . clazz=[{}], id=[{}]", clazz, id); } } @Override public void deleteByIds(Class<?> clazz, Collection<? extends Serializable> ids) { if (isTraceEnabled) log.trace("Ids? ? . class=[{}], ids=[{}]", clazz, StringTool.listToString(ids)); FullTextSession fts = getFullTextSession(); List<Object> entities = new ArrayList<>(); for (Serializable id : ids) entities.add(fts.load(clazz, id)); deleteAll(entities); } @Override public void deleteAll(Class<?> clazz) { deleteAll(clazz, getQueryBuilder(clazz).all().createQuery()); } @Override public void deleteAll(Class<?> clazz, Query luceneQuery) { List<Serializable> ids = getAllIds(clazz, luceneQuery); deleteByIds(clazz, ids); } @Override public void deleteAll(Collection<?> entities) { if (ArrayTool.isEmpty(entities)) return; if (isTraceEnabled) log.trace(" ? ? ... entity count=[{}]", entities.size()); Session session = getFullTextSession(); for (Object entity : entities) { session.delete(entity); } } @Override public void purge(Class<?> clazz, Serializable id) { getFullTextSession().purge(clazz, id); } @Override public void purgeAll(Class<?> clazz) { if (isTraceEnabled) log.trace( " ? ? ?? ... clazz=[{}]", clazz); getFullTextSession().purgeAll(clazz); } @Override public <T> void index(T entity) { shouldNotBeNull(entity, "entity"); if (isTraceEnabled) log.trace("? ?? . entity=[{}]", entity); getFullTextSession().index(entity); } @Override public void indexAll(Class<?> clazz, int batchSize) { if (log.isDebugEnabled()) log.debug("[{}]? ? ??? ...", clazz); clearIndex(clazz); if (batchSize < BATCH_SIZE) batchSize = BATCH_SIZE; final FullTextSession fts = getFullTextSession(); FlushMode currentFlushMode = fts.getFlushMode(); CacheMode currentCacheMode = fts.getCacheMode(); fts.setFlushMode(FlushMode.MANUAL); fts.setCacheMode(CacheMode.IGNORE); try { Transaction tx = fts.beginTransaction(); ScrollableResults results = fts.createCriteria(clazz).scroll(ScrollMode.FORWARD_ONLY); int index = 0; while (results.next()) { index++; fts.index(results.get(0)); if (index % batchSize == 0) { fts.flushToIndexes(); fts.clear(); } } fts.flushToIndexes(); tx.commit(); if (log.isDebugEnabled()) log.debug("[{}]? [{}] ??? !!!", clazz, index); } finally { fts.setFlushMode(currentFlushMode); fts.setCacheMode(currentCacheMode); } } @Override public Future<Void> indexAllAsync(final Class<?> clazz, final int batchSize) { if (isTraceEnabled) log.trace( "? ? ? ??? ... clazz=[{}], batchSize=[{}]", clazz, batchSize); // TODO: Session? Thread-safe , Thread ?. indexAll(clazz, batchSize); return AsyncTool.getTaskHasResult(null); // final FullTextSession fts = getFullTextSession(); // return AsyncTool.startNew(new Callable<Void>() { // @Override // public Void call() { // try { // indexAll(clazz, batchSize); // return null; // } finally { // fts.close(); // } // } // }); } @Override public void clearIndex(Class<?> clazz) { if (isDebugEnabled) log.debug("? ?? ... clazz=[{}]", clazz); getFullTextSession().purgeAll(clazz); // remove all index getFullTextSession().flushToIndexes(); // apply purge before optimize optimize(clazz); // physically clear space log.info("? ?? . clazz=[{}]", clazz); } @Override public void clearIndexAll() { if (isDebugEnabled) log.debug(" ? ?? ..."); FullTextSession fts = getFullTextSession(); for (Class clazz : SearchTool.getIndexedClasses(fts.getSessionFactory())) { fts.purgeAll(clazz); fts.flushToIndexes(); } optimizeAll(); log.info(" ?? ."); } @Override public void optimize(Class<?> clazz) { if (isTraceEnabled) log.trace("? ? ?? ?. clazz=[{}]", clazz); getFullTextSession().getSearchFactory().optimize(clazz); } @Override public void optimizeAll() { if (isTraceEnabled) log.trace(" ? ?? ?."); getFullTextSession().getSearchFactory().optimize(); } @Override public void flush() { if (isTraceEnabled) log.trace("? ? ?..."); getFullTextSession().flush(); } @Override public void flushToIndexes() { if (isTraceEnabled) log.trace( "Session? ?? ? ?? , ."); getFullTextSession().flushToIndexes(); } private static final long serialVersionUID = -3954150732515417589L; }