/*
* Copyright (c) 2010 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.start;
import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import org.eurekastreams.commons.actions.ExecutionStrategy;
import org.eurekastreams.commons.actions.context.PrincipalActionContext;
import org.eurekastreams.commons.exceptions.ExecutionException;
import org.eurekastreams.server.action.request.start.SetTabOrderRequest;
import org.eurekastreams.server.domain.Person;
import org.eurekastreams.server.domain.Tab;
import org.eurekastreams.server.persistence.PersonMapper;
import org.eurekastreams.server.persistence.mappers.DomainMapper;
import org.eurekastreams.server.persistence.mappers.cache.CacheKeys;
/**
* Move one tab to a different spot in the list of tabs belonging to a page.
*/
public class SetTabOrderExecution implements ExecutionStrategy<PrincipalActionContext>
{
/**
* Mapper used to retrieve and save the page that holds the tabs.
*/
private PersonMapper personMapper = null;
/**
* Domain mapper to delete keys.
*/
private DomainMapper<Set<String>, Boolean> deleteKeysMapper;
/**
* Constructor.
*
* @param inPersonMapper
* injecting the mapper
* @param inDeleteKeysMapper
* mapper to delete cache keys.
*/
public SetTabOrderExecution(final PersonMapper inPersonMapper,
final DomainMapper<Set<String>, Boolean> inDeleteKeysMapper)
{
personMapper = inPersonMapper;
deleteKeysMapper = inDeleteKeysMapper;
}
@Override
public Serializable execute(final PrincipalActionContext inActionContext) throws ExecutionException
{
SetTabOrderRequest currentRequest = (SetTabOrderRequest) inActionContext.getParams();
Person person = personMapper.findByAccountId(inActionContext.getPrincipal().getAccountId());
List<Tab> tabs = person.getTabs(currentRequest.getTabType());
// Find the tab to be moved
int oldIndex = findTabIndex(tabs, currentRequest.getTabId());
Tab movingTab = tabs.get(oldIndex);
// move the tab
tabs.remove(oldIndex);
tabs.add(currentRequest.getNewIndex(), movingTab);
deleteKeysMapper.execute(Collections.singleton(CacheKeys.PERSON_PAGE_PROPERTIES_BY_ID
+ inActionContext.getPrincipal().getId()));
personMapper.flush();
return Boolean.TRUE;
}
/**
* Find the current location of the tab.
*
* @param tabs
* the collection to search through
* @param tabId
* the id to look for
* @return the index of the tab or -1 if not found
*/
private int findTabIndex(final List<Tab> tabs, final long tabId)
{
for (int i = 0; i < tabs.size(); i++)
{
if (tabs.get(i).getId() == tabId)
{
return i;
}
}
return -1;
}
}