/*
* 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.action.execution.stream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eurekastreams.commons.actions.ExecutionStrategy;
import org.eurekastreams.commons.actions.context.PrincipalActionContext;
import org.eurekastreams.commons.exceptions.ExecutionException;
import org.eurekastreams.server.persistence.mappers.DomainMapper;
import org.eurekastreams.server.persistence.mappers.chained.DecoratedPartialResponseDomainMapper;
import org.eurekastreams.server.search.modelview.PersonModelView;
/**
* Get all the people who like a particular activity or resource.
*/
public class GetPeopleWhoLikedItemExecution implements ExecutionStrategy<PrincipalActionContext>
{
/**
* The mapper.
*/
private final DecoratedPartialResponseDomainMapper<List<Long>, List<List<Long>>> mapper;
/**
* People mapper.
*/
private final DomainMapper<List<Long>, List<PersonModelView>> peopleMapper;
/**
* Default constructor.
*
* @param inMapper
* the mapper.
* @param inPeopleMapper
* the people mapper.
*/
public GetPeopleWhoLikedItemExecution(
final DecoratedPartialResponseDomainMapper<List<Long>, List<List<Long>>> inMapper,
final DomainMapper<List<Long>, List<PersonModelView>> inPeopleMapper)
{
mapper = inMapper;
peopleMapper = inPeopleMapper;
}
/**
* Just execute the mapper, it does all the heavy lifting for this action.
*
* @param inActionContext
* the action context.
* @return the list of people
* @throws ExecutionException
* the exception.
*/
@Override
public ArrayList<PersonModelView> execute(final PrincipalActionContext inActionContext) throws ExecutionException
{
List<Long> itemIdList = (List) Collections.singletonList(inActionContext.getParams());
List<Long> peopleIdsInterested = mapper.execute(itemIdList).get(0);
List<PersonModelView> people = peopleMapper.execute(peopleIdsInterested);
return new ArrayList<PersonModelView>(people);
}
}