Examples with FullTextSession org.hibernate.search.FullTextSession used on opensource projects

Example 11 with FullTextSession

use of org.hibernate.search.FullTextSession in project ice by JBEI.

the class HibernateSearch method filterBlastResults.

/**
 * Intended to be called after running a blast search to filter the results. Blast search runs
 * on a fasta file which contains all the sequences. Hibernate search has a security filter for permissions
 * and is therefore used to filter out the blast results, as well as to filter based on the entry
 * attributes not handled by blast; such as "has sequence" and "bio-safety level"
 *
 * @param userId       identifier for account of user performing search
 * @param start        paging start
 * @param count        maximum number of results to return
 * @param blastResults raw results of the blast search
 * @return wrapper around list of filtered results
 */
public SearchResults filterBlastResults(String userId, int start, int count, SearchQuery searchQuery, final HashMap<String, SearchResult> blastResults) {
    Session session = HibernateUtil.getSessionFactory().getCurrentSession();
    FullTextSession fullTextSession = Search.getFullTextSession(session);
    QueryBuilder qb = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Entry.class).get();
    Query query = qb.keyword().onField("visibility").matching(Visibility.OK.getValue()).createQuery();
    // todo : there is a limit of 1024 boolean clauses so return only return top blast results
    BooleanQuery.Builder builder = new BooleanQuery.Builder();
    builder.add(query, BooleanClause.Occur.FILTER);
    // wrap Lucene query in a org.hibernate.Query
    Class<?>[] classes = SearchFieldFactory.classesForTypes(searchQuery.getEntryTypes());
    FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(builder.build(), classes);
    // enable security filter if an admin
    checkEnableSecurityFilter(userId, fullTextQuery);
    // enable has attachment/sequence/sample (if needed)
    checkEnableHasAttribute(fullTextQuery, searchQuery.getParameters());
    // bio-safety level
    if (searchQuery.getBioSafetyOption() != null) {
        TermContext levelContext = qb.keyword();
        Query biosafetyQuery = levelContext.onField("bioSafetyLevel").ignoreFieldBridge().matching(searchQuery.getBioSafetyOption().getValue()).createQuery();
        builder.add(biosafetyQuery, BooleanClause.Occur.MUST);
    }
    // execute search
    fullTextQuery.setProjection("id");
    // list contains an object array with one Long object
    List<?> luceneResult = fullTextQuery.list();
    HashSet<String> resultSet = new HashSet<>();
    // page
    for (Object object : luceneResult) {
        Long result = (Long) ((Object[]) object)[0];
        resultSet.add(result.toString());
    }
    blastResults.keySet().removeIf(key -> !resultSet.contains(key));
    SearchResult[] searchResults = new SearchResult[count];
    int limit = Math.min((start + count), blastResults.size());
    LinkedList<SearchResult> list = new LinkedList<>(Arrays.asList(blastResults.values().toArray(searchResults)).subList(start, limit));
    SearchResults results = new SearchResults();
    results.setResultCount(blastResults.size());
    results.setResults(list);
    return results;
}

Example 12 with FullTextSession

use of org.hibernate.search.FullTextSession in project weicoder by wdcode.

the class HibernateSearch method search.

/**
 * 使用索引查询
 * @param session Hibernate Session
 * @param entityClass 实体类
 * @param property 属性名
 * @param value 属性值
 * @param firstResult 重第几条开始查询
 * @param maxResults 一共查回多少条
 * @param <E> 泛型
 * @return 数据列表
 */
@SuppressWarnings("unchecked")
public <E> List<E> search(Session session, Class<E> entityClass, final String property, final Object value, final int firstResult, final int maxResults) {
    // 通过Hibernate的Session获取FullTextSession对象
    FullTextSession fullTextSession = Search.getFullTextSession(session);
    // 获取特定类的特定QueryBuilder对象
    QueryBuilder queryBuilder = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(entityClass).get();
    // 得到search query
    org.apache.lucene.search.Query query = queryBuilder.keyword().onField(property).matching(value).createQuery();
    // 这里使用FullTextQuery和org.hibernate.Query来分装org.apache.lucene.search.Query都是可以的，
    // 但FullTextQuery的功能比org.hibernate.Query的功能要强大一点，究竟什么时候要用org.hibernate.Query而不能用
    // org.apache.lucene.search.Query这个我暂时还没有发现！
    FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(query, entityClass);
    // 开始结果大于等于0
    if (firstResult >= 0) {
        fullTextQuery.setFirstResult(firstResult);
    }
    // 最大结果大于零
    if (maxResults > 0) {
        fullTextQuery.setMaxResults(maxResults);
    }
    // 返回结果
    return fullTextQuery.list();
}

Example 13 with FullTextSession

use of org.hibernate.search.FullTextSession in project trainning by fernandotomasio.

the class HibernatePessoaDAO method search.

@Override
public List<Pessoa> search(String term) throws DAOException {
    Session session = sessionFactory.getCurrentSession();
    FullTextSession fullTextSession = Search.getFullTextSession(session);
    // Transaction tx = fullTextSession.beginTransaction();
    // create native Lucene query unsing the query DSL
    // alternatively you can write the Lucene query using the Lucene query parser
    // or the Lucene programmatic API. The Hibernate Search DSL is recommended though
    QueryBuilder qb = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Pessoa.class).get();
    org.apache.lucene.search.Query query = qb.phrase().onField("nome").sentence(term).createQuery();
    // wrap Lucene query in a org.hibernate.Query
    org.hibernate.Query hibQuery = fullTextSession.createFullTextQuery(query, Pessoa.class);
    // execute search
    @SuppressWarnings("unchecked") List<Pessoa> result = hibQuery.list();
    // tx.commit();
    return result;
// Session session = sessionFactory.getCurrentSession();
// 
// try {
// Criteria criteria = session.createCriteria(Pessoa.class);
// 
// if (term != null) {
// Disjunction or = Restrictions.disjunction();
// or.add(Restrictions.ilike("cpf", "%" + term + "%"))
// .add(Restrictions.ilike("identidade", "%" + term + "%"))
// .add(Restrictions.ilike("nome", "%" + term + "%"));
// 
// 
// criteria.add(or);
// }
// 
// List<Pessoa> pessoas = criteria.list();
// 
// 
// return pessoas;
// 
// } catch (HibernateException e) {
// Logger.getLogger(HibernatePessoaDAO.class.getName()).log(
// Level.SEVERE, null, e);
// throw new DAOException(MessageHelper.getMessage("pesssoas.find.list.error"));
// } finally {
// session.close();
// 
// }
}

Example 14 with FullTextSession

use of org.hibernate.search.FullTextSession in project rubia-forums by flashboss.

the class ForumsSearchModuleImpl method findTopics.

@SuppressWarnings("unchecked")
public ResultPage<Topic> findTopics(SearchCriteria criteria) throws ModuleException {
    if (criteria != null) {
        try {
            EntityManager session = getSession();
            FullTextSession fullTextSession = getFullTextSession((Session) session.getDelegate());
            Builder builder = new Builder();
            String keywords = criteria.getKeywords();
            if (keywords != null && keywords.length() != 0) {
                String[] fields = null;
                Searching searching = Searching.valueOf(criteria.getSearching());
                switch(searching) {
                    case TITLE_MSG:
                        fields = new String[] { "message.text", "topic.subject" };
                        break;
                    case MSG:
                        fields = new String[] { "message.text" };
                        break;
                }
                MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, new StandardAnalyzer());
                builder.add(parser.parse(keywords), MUST);
            }
            String forumId = criteria.getForum();
            if (forumId != null && forumId.length() != 0) {
                builder.add(new TermQuery(new Term("topic.forum.id", forumId)), MUST);
            }
            String categoryId = criteria.getCategory();
            if (categoryId != null && categoryId.length() != 0) {
                builder.add(new TermQuery(new Term("topic.forum.category.id", categoryId)), MUST);
            }
            String userName = criteria.getAuthor();
            if (userName != null && userName.length() != 0) {
                builder.add(new WildcardQuery(new Term("poster.userId", userName)), MUST);
            }
            String timePeriod = criteria.getTimePeriod();
            if (timePeriod != null && timePeriod.length() != 0) {
                addPostTimeQuery(builder, TimePeriod.valueOf(timePeriod));
            }
            FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(builder.build(), Post.class);
            SortOrder sortOrder = SortOrder.valueOf(criteria.getSortOrder());
            SortBy sortBy = valueOf(criteria.getSortBy());
            fullTextQuery.setSort(getSort(sortBy, sortOrder));
            fullTextQuery.setProjection("topic.id");
            LinkedHashSet<Integer> topicIds = new LinkedHashSet<Integer>();
            LinkedHashSet<Integer> topicToDispIds = new LinkedHashSet<Integer>();
            int start = criteria.getPageSize() * criteria.getPageNumber();
            int end = start + criteria.getPageSize();
            int index = 0;
            for (Object o : fullTextQuery.list()) {
                Integer id = (Integer) ((Object[]) o)[0];
                if (topicIds.add(id)) {
                    if (index >= start && index < end) {
                        topicToDispIds.add(id);
                    }
                    index++;
                }
            }
            List<Topic> topics = null;
            if (topicToDispIds.size() > 0) {
                Query q = session.createQuery("from Topic as t join fetch t.poster where t.id IN ( :topicIds )");
                q.setParameter("topicIds", topicToDispIds);
                List<Topic> results = q.getResultList();
                topics = new LinkedList<Topic>();
                for (Integer id : topicToDispIds) {
                    for (Topic topic : results) {
                        if (id.equals(topic.getId())) {
                            topics.add(topic);
                            break;
                        }
                    }
                }
            }
            ResultPage<Topic> resultPage = new ResultPage<Topic>();
            resultPage.setPage(topics);
            resultPage.setResultSize(topicIds.size());
            return resultPage;
        } catch (ParseException e) {
            return null;
        } catch (Exception e) {
            throw new ModuleException(e.getMessage(), e);
        }
    } else {
        throw new IllegalArgumentException("criteria cannot be null");
    }
}

Example 15 with FullTextSession

use of org.hibernate.search.FullTextSession in project rubia-forums by flashboss.

the class ForumsSearchModuleImpl method findTopics.

@SuppressWarnings("unchecked")
public ResultPage<Topic> findTopics(SearchCriteria criteria) throws ModuleException {
    if (criteria != null) {
        try {
            EntityManager session = getSession();
            FullTextSession fullTextSession = getFullTextSession((Session) session.getDelegate());
            Builder builder = new Builder();
            String keywords = criteria.getKeywords();
            if (keywords != null && keywords.length() != 0) {
                String[] fields = null;
                Searching searching = Searching.valueOf(criteria.getSearching());
                switch(searching) {
                    case TITLE_MSG:
                        fields = new String[] { "message.text", "topic.subject" };
                        break;
                    case MSG:
                        fields = new String[] { "message.text" };
                        break;
                }
                MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, new StandardAnalyzer());
                builder.add(parser.parse(keywords), MUST);
            }
            String forumId = criteria.getForum();
            if (forumId != null && forumId.length() != 0) {
                builder.add(new TermQuery(new Term("topic.forum.id", forumId)), MUST);
            }
            String categoryId = criteria.getCategory();
            if (categoryId != null && categoryId.length() != 0) {
                builder.add(new TermQuery(new Term("topic.forum.category.id", categoryId)), MUST);
            }
            String userName = criteria.getAuthor();
            if (userName != null && userName.length() != 0) {
                builder.add(new WildcardQuery(new Term("poster.userId", userName)), MUST);
            }
            String timePeriod = criteria.getTimePeriod();
            if (timePeriod != null && timePeriod.length() != 0) {
                addPostTimeQuery(builder, TimePeriod.valueOf(timePeriod));
            }
            FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(builder.build(), Post.class);
            SortOrder sortOrder = SortOrder.valueOf(criteria.getSortOrder());
            SortBy sortBy = valueOf(criteria.getSortBy());
            fullTextQuery.setSort(getSort(sortBy, sortOrder));
            fullTextQuery.setProjection("topic.id");
            LinkedHashSet<Integer> topicIds = new LinkedHashSet<Integer>();
            LinkedHashSet<Integer> topicToDispIds = new LinkedHashSet<Integer>();
            int start = criteria.getPageSize() * criteria.getPageNumber();
            int end = start + criteria.getPageSize();
            int index = 0;
            for (Object o : fullTextQuery.list()) {
                Integer id = (Integer) ((Object[]) o)[0];
                if (topicIds.add(id)) {
                    if (index >= start && index < end) {
                        topicToDispIds.add(id);
                    }
                    index++;
                }
            }
            List<Topic> topics = null;
            if (topicToDispIds.size() > 0) {
                Query q = session.createQuery("from Topic as t join fetch t.poster where t.id IN ( :topicIds )");
                q.setParameter("topicIds", topicToDispIds);
                List<Topic> results = q.getResultList();
                topics = new LinkedList<Topic>();
                for (Integer id : topicToDispIds) {
                    for (Topic topic : results) {
                        if (id.equals(topic.getId())) {
                            topics.add(topic);
                            break;
                        }
                    }
                }
            }
            ResultPage<Topic> resultPage = new ResultPage<Topic>();
            resultPage.setPage(topics);
            resultPage.setResultSize(topicIds.size());
            return resultPage;
        } catch (ParseException e) {
            return null;
        } catch (Exception e) {
            throw new ModuleException(e.getMessage(), e);
        }
    } else {
        throw new IllegalArgumentException("criteria cannot be null");
    }
}