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

Example 1 with FullTextQuery

use of org.hibernate.search.FullTextQuery 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());
    }
    Iterator<String> iterator = blastResults.keySet().iterator();
    while (iterator.hasNext()) {
        String key = iterator.next();
        if (!resultSet.contains(key))
            iterator.remove();
    }
    SearchResult[] searchResults = new SearchResult[count];
    int limit = (start + count) > blastResults.size() ? blastResults.size() : (start + count);
    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 2 with FullTextQuery

use of org.hibernate.search.FullTextQuery in project querydsl by querydsl.

the class AbstractSearchQuery method createQuery.

private FullTextQuery createQuery(boolean forCount) {
    QueryMetadata metadata = queryMixin.getMetadata();
    org.apache.lucene.search.Query query;
    if (metadata.getWhere() != null) {
        query = serializer.toQuery(metadata.getWhere(), metadata);
    } else {
        query = new MatchAllDocsQuery();
    }
    FullTextQuery fullTextQuery = session.createFullTextQuery(query, path.getType());
    // order
    if (!metadata.getOrderBy().isEmpty() && !forCount) {
        fullTextQuery.setSort(serializer.toSort(metadata.getOrderBy()));
    }
    // paging
    QueryModifiers modifiers = metadata.getModifiers();
    if (modifiers.isRestricting() && !forCount) {
        Integer limit = modifiers.getLimitAsInteger();
        Integer offset = modifiers.getOffsetAsInteger();
        if (limit != null) {
            fullTextQuery.setMaxResults(limit.intValue());
        }
        if (offset != null) {
            fullTextQuery.setFirstResult(offset.intValue());
        }
    }
    return fullTextQuery;
}

Example 3 with FullTextQuery

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

the class HibernateSearch method executeSearchNoTerms.

public SearchResults executeSearchNoTerms(String userId, HashMap<String, SearchResult> blastResults, SearchQuery searchQuery) {
    ArrayList<EntryType> entryTypes = searchQuery.getEntryTypes();
    if (entryTypes == null || entryTypes.isEmpty()) {
        entryTypes = new ArrayList<>();
        entryTypes.addAll(Arrays.asList(EntryType.values()));
    }
    Session session = HibernateUtil.getSessionFactory().getCurrentSession();
    int resultCount;
    FullTextSession fullTextSession = Search.getFullTextSession(session);
    BooleanQuery.Builder builder = new BooleanQuery.Builder();
    QueryBuilder qb = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Entry.class).get();
    ArrayList<Query> except = new ArrayList<>();
    for (EntryType type : EntryType.values()) {
        if (entryTypes.contains(type))
            continue;
        except.add(qb.keyword().onField("recordType").matching(type.getName()).createQuery());
    }
    // add terms for record types
    Query[] queries = new Query[] {};
    Query recordTypeQuery = qb.all().except(except.toArray(queries)).createQuery();
    builder.add(recordTypeQuery, BooleanClause.Occur.FILTER);
    // visibility
    Query visibilityQuery = qb.keyword().onField("visibility").matching(Visibility.OK.getValue()).createQuery();
    builder.add(visibilityQuery, BooleanClause.Occur.FILTER);
    // bio safety level
    BioSafetyOption option = searchQuery.getBioSafetyOption();
    if (option != null) {
        TermContext bslContext = qb.keyword();
        Query biosafetyQuery = bslContext.onField("bioSafetyLevel").ignoreFieldBridge().matching(option.getIntValue()).createQuery();
        builder.add(biosafetyQuery, BooleanClause.Occur.FILTER);
    }
    // check filter filters
    if (searchQuery.getFieldFilters() != null && !searchQuery.getFieldFilters().isEmpty()) {
        for (FieldFilter fieldFilter : searchQuery.getFieldFilters()) {
            String searchField = SearchFieldFactory.searchFieldForEntryField(fieldFilter.getField());
            if (StringUtils.isEmpty(searchField))
                continue;
            Query filterQuery = qb.keyword().onField(searchField).matching(fieldFilter.getFilter()).createQuery();
            builder.add(filterQuery, BooleanClause.Occur.MUST);
        }
    }
    // check if there is a blast results
    createBlastFilterQuery(fullTextSession, blastResults, builder);
    // wrap Lucene query in a org.hibernate.Query
    FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(builder.build(), Entry.class);
    // get sorting values
    Sort sort = getSort(searchQuery.getParameters().isSortAscending(), searchQuery.getParameters().getSortField());
    fullTextQuery.setSort(sort);
    // enable security filter if needed
    checkEnableSecurityFilter(userId, fullTextQuery);
    // enable has attachment/sequence/sample (if needed)
    checkEnableHasAttribute(fullTextQuery, searchQuery.getParameters());
    // set paging params
    fullTextQuery.setFirstResult(searchQuery.getParameters().getStart());
    fullTextQuery.setMaxResults(searchQuery.getParameters().getRetrieveCount());
    resultCount = fullTextQuery.getResultSize();
    List result = fullTextQuery.list();
    LinkedList<SearchResult> searchResults = new LinkedList<>();
    for (Object object : result) {
        Entry entry = (Entry) object;
        SearchResult searchResult;
        if (blastResults != null) {
            searchResult = blastResults.get(Long.toString(entry.getId()));
            if (// this should not really happen since we already filter
            searchResult == null)
                continue;
        } else {
            searchResult = new SearchResult();
            searchResult.setScore(1f);
            PartData info = ModelToInfoFactory.createTableViewData(userId, entry, true);
            searchResult.setEntryInfo(info);
        }
        searchResult.setMaxScore(1f);
        searchResults.add(searchResult);
    }
    SearchResults results = new SearchResults();
    results.setResultCount(resultCount);
    results.setResults(searchResults);
    Logger.info(userId + ": obtained " + resultCount + " results for empty query");
    return results;
}

Example 4 with FullTextQuery

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

the class HibernateSearch method executeSearch.

@SuppressWarnings("unchecked")
public SearchResults executeSearch(String userId, HashMap<String, QueryType> terms, SearchQuery searchQuery, HashMap<String, SearchResult> blastResults) {
    Session session = HibernateUtil.getSessionFactory().getCurrentSession();
    int resultCount;
    FullTextSession fullTextSession = Search.getFullTextSession(session);
    BooleanQuery.Builder builder = new BooleanQuery.Builder();
    // get classes for search
    HashSet<String> fields = new HashSet<>();
    fields.addAll(SearchFieldFactory.entryFields(searchQuery.getEntryTypes()));
    Class<?>[] classes = SearchFieldFactory.classesForTypes(searchQuery.getEntryTypes());
    // generate queries for terms filtering stop words
    for (Map.Entry<String, QueryType> entry : terms.entrySet()) {
        String term = cleanQuery(entry.getKey());
        if (term.trim().isEmpty() || StandardAnalyzer.STOP_WORDS_SET.contains(term))
            continue;
        BioSafetyOption safetyOption = searchQuery.getBioSafetyOption();
        generateQueriesForType(fullTextSession, fields, builder, term, entry.getValue(), safetyOption);
    }
    // check for blast search results filter
    createBlastFilterQuery(fullTextSession, blastResults, builder);
    // wrap Lucene query in a org.hibernate.Query
    FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(builder.build(), classes);
    // get max score
    fullTextQuery.setFirstResult(0);
    fullTextQuery.setMaxResults(1);
    fullTextQuery.setProjection(FullTextQuery.SCORE);
    List result = fullTextQuery.list();
    float maxScore = -1f;
    if (result.size() == 1) {
        maxScore = (Float) ((Object[]) (result.get(0)))[0];
    }
    // end get max score
    // get sorting values
    Sort sort = getSort(searchQuery.getParameters().isSortAscending(), searchQuery.getParameters().getSortField());
    fullTextQuery.setSort(sort);
    // projection (specified properties must be stored in the index @Field(store=Store.YES))
    fullTextQuery.setProjection(FullTextQuery.SCORE, FullTextQuery.THIS);
    // enable security filter if needed
    fullTextQuery = checkEnableSecurityFilter(userId, fullTextQuery);
    // check sample
    checkEnableHasAttribute(fullTextQuery, searchQuery.getParameters());
    // set paging params
    fullTextQuery.setFirstResult(searchQuery.getParameters().getStart());
    fullTextQuery.setMaxResults(searchQuery.getParameters().getRetrieveCount());
    resultCount = fullTextQuery.getResultSize();
    // execute search
    result = fullTextQuery.list();
    Logger.info(resultCount + " results for \"" + searchQuery.getQueryString() + "\"");
    LinkedList<SearchResult> searchResults = new LinkedList<>();
    for (Object[] objects : (Iterable<Object[]>) result) {
        float score = (Float) objects[0];
        Entry entry = (Entry) objects[1];
        SearchResult searchResult;
        if (blastResults != null) {
            searchResult = blastResults.get(Long.toString(entry.getId()));
            if (// this should not really happen since we already filter
            searchResult == null)
                continue;
        } else {
            searchResult = new SearchResult();
            searchResult.setScore(score);
            PartData info = ModelToInfoFactory.createTableViewData(userId, entry, true);
            if (info == null)
                continue;
            searchResult.setEntryInfo(info);
        }
        searchResult.setMaxScore(maxScore);
        searchResults.add(searchResult);
    }
    SearchResults results = new SearchResults();
    results.setResultCount(resultCount);
    results.setResults(searchResults);
    return results;
}