/*
* Copyright (c) 2009-2010 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.service.actions.strategies.directory;
import java.util.ArrayList;
import java.util.List;
import org.eurekastreams.commons.search.ProjectionSearchRequestBuilder;
import org.eurekastreams.server.domain.DomainGroup;
import org.hibernate.search.jpa.FullTextQuery;
/**
* Strategy to determine if a person is either a coordinator or follower of a DomainGroup.
*/
public class DomainGroupRoleDeterminer
{
/**
* SearchRequestBuilder to use to look up whether the user is either a follower or coordinator.
*/
private ProjectionSearchRequestBuilder searchRequestBuilder;
/**
* Constructor.
*
* @param inSearchRequestBuilder
* the search request builder, mostly setup in this constructor but still required as a parameter because
* Spring injects the entity manager into it. An empty ProjectionSearchRequestBuilder can be passed into
* this constructor.
*/
public DomainGroupRoleDeterminer(final ProjectionSearchRequestBuilder inSearchRequestBuilder)
{
searchRequestBuilder = inSearchRequestBuilder;
// setup the fields - we might not need any fields, but just in case, specify id
List<String> fields = new ArrayList<String>();
fields.add("id");
searchRequestBuilder.setResultFields(fields);
// set the entity types - just DomainGroups
Class< ? >[] entityTypes = { DomainGroup.class };
searchRequestBuilder.setResultTypes(entityTypes);
}
/**
* Check if the input user is a follower or coordinator for a DomainGroup.
*
* @param personId
* the personId to check
* @param domainGroupId
* the domainGroup to check
* @return whether the input user is a follower or coordinator of a DomainGroup
*/
public boolean isGroupCoordinatorOrFollower(final long personId, final long domainGroupId)
{
if (personId <= 0)
{
return false;
}
// search for groups with the input
String luceneQuery = String.format("+id:(%d) +followerAndCoordinatorIds:(%d)", domainGroupId, personId);
FullTextQuery query = searchRequestBuilder.buildQueryFromNativeSearchString(luceneQuery);
// if we receive one result, the user is a coordinator or follower of the group
return query.getResultSize() == 1;
}
}