/*
* Copyright (c) 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;
import java.io.Serializable;
import java.util.List;
import org.apache.commons.logging.Log;
import org.eurekastreams.commons.logging.LogFactory;
import org.eurekastreams.server.domain.dto.FeaturedStreamDTO;
import org.eurekastreams.server.domain.dto.StreamDTO;
import org.eurekastreams.server.domain.dto.StreamDiscoverListsDTO;
import org.eurekastreams.server.domain.dto.SublistWithResultCount;
import org.eurekastreams.server.persistence.mappers.requests.MapperRequest;
import org.eurekastreams.server.service.actions.strategies.RepopulateTempWeekdaysSinceDateStrategy;
/**
* Mapper to piece together the results of different mappers to feed the streams discovery page.
*/
public class StreamDiscoverListsMapper extends BaseArgDomainMapper<Serializable, StreamDiscoverListsDTO>
{
/**
* Logger.
*/
private Log log = LogFactory.make();
/**
* Mapper to retrieve featured stream DTOs.
*/
private DomainMapper<MapperRequest< ? >, List<FeaturedStreamDTO>> featuredStreamDTOMapper;
/**
* Mapper to retrieve the most active stream DTOs.
*/
private DomainMapper<Serializable, SublistWithResultCount<StreamDTO>> mostActiveStreamsMapper;
/**
* Mapper to retrieve the most viewed stream DTOs.
*/
private DomainMapper<Serializable, List<StreamDTO>> mostViewedStreamsMapper;
/**
* Mapper to retrieve the most followed stream DTOs.
*/
private DomainMapper<Serializable, List<StreamDTO>> mostFollowedStreamsMapper;
/**
* Mapper to retrieve the most recent stream DTOs.
*/
private DomainMapper<Serializable, List<StreamDTO>> mostRecentStreamsMapper;
/**
* Strategy to repopulate the TempWeekdaysSinceDate table.
*/
private final RepopulateTempWeekdaysSinceDateStrategy repopulateTempWeekdaysSinceDateStrategy;
/**
* Number of days to generate weekday count data for.
*/
private final long numberOfDaysOfWeekdayCountDataToGenerate;
/**
* Constructor.
*
* @param inFeaturedStreamDTOMapper
* mapper to retrieve featured stream DTOs.
* @param inMostActiveStreamsMapper
* mapper to retrieve the most active stream DTOs.
* @param inMostViewedStreamsMapper
* mapper to retrieve the most viewed stream DTOs.
* @param inMostFollowedStreamsMapper
* mapper to retrieve the most followed stream DTOs.
* @param inMostRecentStreamsMapper
* mapper to retrieve the most recent stream DTOs.
* @param inRepopulateTempWeekdaysSinceDateStrategy
* strategy to repopulate the TempWeekdaysSinceDate table
* @param inNumberOfDaysOfWeekdayCountDataToGenerate
* number of days to generate weekday count data for.
*/
public StreamDiscoverListsMapper(
final DomainMapper<MapperRequest< ? >, List<FeaturedStreamDTO>> inFeaturedStreamDTOMapper,
final DomainMapper<Serializable, SublistWithResultCount<StreamDTO>> inMostActiveStreamsMapper,
final DomainMapper<Serializable, List<StreamDTO>> inMostViewedStreamsMapper,
final DomainMapper<Serializable, List<StreamDTO>> inMostFollowedStreamsMapper,
final DomainMapper<Serializable, List<StreamDTO>> inMostRecentStreamsMapper,
final RepopulateTempWeekdaysSinceDateStrategy inRepopulateTempWeekdaysSinceDateStrategy,
final long inNumberOfDaysOfWeekdayCountDataToGenerate)
{
featuredStreamDTOMapper = inFeaturedStreamDTOMapper;
mostActiveStreamsMapper = inMostActiveStreamsMapper;
mostViewedStreamsMapper = inMostViewedStreamsMapper;
mostFollowedStreamsMapper = inMostFollowedStreamsMapper;
mostRecentStreamsMapper = inMostRecentStreamsMapper;
repopulateTempWeekdaysSinceDateStrategy = inRepopulateTempWeekdaysSinceDateStrategy;
numberOfDaysOfWeekdayCountDataToGenerate = inNumberOfDaysOfWeekdayCountDataToGenerate;
}
/**
* Build a base StreamDiscoverListsDTO that applies to all of Eureka, nothing specific for a specific user.
*
* @param inRequest
* (ignored)
* @return a base StreamDiscoverListsDTO that applies to all of Eureka, nothing specific for a specific user.
*/
@Override
public StreamDiscoverListsDTO execute(final Serializable inRequest)
{
log.info("Beginning to generate Stream Discovery lists for all users.");
log.info("Regenerating weekday count temp data for " + numberOfDaysOfWeekdayCountDataToGenerate + " days");
repopulateTempWeekdaysSinceDateStrategy.execute(numberOfDaysOfWeekdayCountDataToGenerate);
StreamDiscoverListsDTO result = new StreamDiscoverListsDTO();
log.info("Generating the list of featured streams");
result.setFeaturedStreams(featuredStreamDTOMapper.execute(null));
log.info("Generating the list of most active streams");
result.setMostActiveStreams(mostActiveStreamsMapper.execute(null));
log.info("Generating the list of most viewed streams.");
result.setMostViewedStreams(mostViewedStreamsMapper.execute(null));
log.info("Generating the list of most followed streams.");
result.setMostFollowedStreams(mostFollowedStreamsMapper.execute(null));
log.info("Generating the list of most recent streams.");
result.setMostRecentStreams(mostRecentStreamsMapper.execute(null));
log.info("Finished generating Stream Discovery lists for all users.");
return result;
}
}