/*
 * Copyright (c) 2010-2011 Lockheed Martin Corporation
 *
 * 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 org.eurekastreams.server.persistence.mappers.db.metrics;

import org.eurekastreams.commons.date.DateDayExtractor;
import org.eurekastreams.server.persistence.mappers.BaseArgDomainMapper;
import org.eurekastreams.server.service.actions.requests.UsageMetricDailyStreamInfoRequest;

/**
 * Mapper to get total activity count for a stream by stream scope id.
 */
public class GetStreamTotalActivityCountDbMapper extends BaseArgDomainMapper<UsageMetricDailyStreamInfoRequest, Long>
{
    /**
     * Get the total number of activities for a stream by stream scope id and date.
     * 
     * @param inRequest
     *            the destination stream scope id and date to check for activities count
     * @return the number of comments in a stream with the input destination stream scope id
     */
    @Override
    public Long execute(final UsageMetricDailyStreamInfoRequest inRequest)
    {
        return (Long) getEntityManager()
                .createQuery(
                        "SELECT COUNT(id) FROM Activity WHERE recipientStreamScope.id = :recipientStreamScopeId "
                                + "AND postedTime < :reportDate")
                .setParameter("recipientStreamScopeId", inRequest.getStreamRecipientStreamScopeId())
                .setParameter("reportDate", DateDayExtractor.getEndOfDay(inRequest.getMetricsDate()))
                .getSingleResult();
    }
}