/*
* 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.io.Serializable;
import org.eurekastreams.commons.actions.TaskHandlerExecutionStrategy;
import org.eurekastreams.commons.actions.context.PrincipalActionContext;
import org.eurekastreams.commons.actions.context.TaskHandlerActionContext;
import org.eurekastreams.commons.exceptions.ExecutionException;
import org.eurekastreams.commons.server.UserActionRequest;
import org.eurekastreams.server.action.request.notification.ActivityNotificationsRequest;
import org.eurekastreams.server.action.request.notification.CreateNotificationsRequest;
import org.eurekastreams.server.action.request.notification.CreateNotificationsRequest.RequestType;
import org.eurekastreams.server.action.request.stream.SetActivityLikeRequest;
import org.eurekastreams.server.action.request.stream.SetActivityLikeRequest.LikeActionType;
import org.eurekastreams.server.domain.stream.Activity;
import org.eurekastreams.server.domain.stream.LikedActivity;
import org.eurekastreams.server.persistence.mappers.DeleteLikedActivity;
import org.eurekastreams.server.persistence.mappers.FindByIdMapper;
import org.eurekastreams.server.persistence.mappers.IndexEntity;
import org.eurekastreams.server.persistence.mappers.InsertLikedActivity;
import org.eurekastreams.server.persistence.mappers.requests.FindByIdRequest;
/**
* Action to add or remove like on activity for current user.
*/
public class SetActivityLikeExecution implements TaskHandlerExecutionStrategy<PrincipalActionContext>
{
/**
* Mapper for adding like.
*/
private final InsertLikedActivity insertLikedActivity;
/**
* Mapper for removing like.
*/
private final DeleteLikedActivity deleteLikedActivity;
/**
* The entity indexer.
*/
private final IndexEntity<Activity> indexEntity;
/**
* Find Activity by ID mapper.
*/
private final FindByIdMapper<Activity> activityEntityMapper;
/**
* Constructor.
*
* @param inInsertLikedActivity
* Mapper for liking an activity.
* @param inDeleteLikedActivity
* Mapper for unliking an activity.
* @param inIndexEntity
* the activity indexer.
* @param inActivityEntityMapper
* activity entity mapper, used for indexing.
*/
public SetActivityLikeExecution(final InsertLikedActivity inInsertLikedActivity,
final DeleteLikedActivity inDeleteLikedActivity, final IndexEntity<Activity> inIndexEntity,
final FindByIdMapper<Activity> inActivityEntityMapper)
{
insertLikedActivity = inInsertLikedActivity;
deleteLikedActivity = inDeleteLikedActivity;
indexEntity = inIndexEntity;
activityEntityMapper = inActivityEntityMapper;
}
/**
* {@inheritDoc}.
*/
@Override
public Serializable execute(final TaskHandlerActionContext<PrincipalActionContext> inActionContext)
throws ExecutionException
{
SetActivityLikeRequest request = (SetActivityLikeRequest) inActionContext.getActionContext().getParams();
final Long userId = inActionContext.getActionContext().getPrincipal().getId();
LikedActivity likeActivityData = new LikedActivity(userId, request.getActivityId());
if (request.getLikeActionType() == LikeActionType.ADD_LIKE)
{
insertLikedActivity.execute(likeActivityData);
inActionContext.getUserActionRequests().add(
new UserActionRequest("loadLikedActivityIdsByUserId", null, userId));
CreateNotificationsRequest notificationRequest = new ActivityNotificationsRequest(RequestType.LIKE,
userId, 0L, request.getActivityId());
inActionContext.getUserActionRequests().add(
new UserActionRequest(CreateNotificationsRequest.ACTION_NAME, null, notificationRequest));
}
else
{
deleteLikedActivity.execute(likeActivityData);
}
indexEntity.execute(activityEntityMapper.execute(new FindByIdRequest("Activity", request.getActivityId())));
return Boolean.TRUE;
}
}