org.ambraproject.search.SavedSearchRetrieverImpl.java Source code

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Here is the source code for org.ambraproject.search.SavedSearchRetrieverImpl.java

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/*
 * Copyright (c) 2006-2013 by Public Library of Science http://plos.org http://ambraproject.org
 * 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-2.0Unless 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 org.ambraproject.search;

import org.ambraproject.models.SavedSearch;
import org.ambraproject.models.SavedSearchType;
import org.ambraproject.service.hibernate.HibernateServiceImpl;
import org.hibernate.FetchMode;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * @inheritDoc
 */
public class SavedSearchRetrieverImpl extends HibernateServiceImpl implements SavedSearchRetriever {
    private static final Logger log = LoggerFactory.getLogger(SavedSearchRetrieverImpl.class);

    /**
     * @inheritDoc
     */
    @Override
    @SuppressWarnings("unchecked")
    public List<SavedSearchJob> retrieveSearchAlerts(AlertType alertType, Date startTime, Date endTime) {
        List<SavedSearchJob> searchJobs = new ArrayList<SavedSearchJob>();
        List<Object[]> paramsList = (List<Object[]>) hibernateTemplate.findByCriteria(DetachedCriteria
                .forClass(SavedSearch.class).createAlias("searchQuery", "s").add(alertType.getTypeCriterion())
                .setFetchMode("searchQuery", FetchMode.JOIN)
                .setProjection(Projections.distinct(Projections.projectionList().add(Projections.property("s.ID"))
                        .add(Projections.property("s.hash")).add(Projections.property("searchType"))
                        .add(Projections.property("s.searchParams")))));

        for (Object[] obj : paramsList) {
            searchJobs.add(SavedSearchJob.builder().setSavedSearchQueryID((Long) obj[0]).setHash((String) obj[1])
                    .setType((SavedSearchType) obj[2]).setSearchString((String) obj[3])
                    .setFrequency(alertType.name()).setStartDate(startTime).setEndDate(endTime).build());
        }

        log.debug("Returning {} saved search(es) for type {}", searchJobs.size(), alertType);

        return searchJobs;
    }
}