001/*
002 *  Copyright 2016 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.plugins.core.impl.user.population;
017
018import org.apache.avalon.framework.service.ServiceException;
019import org.apache.avalon.framework.service.ServiceManager;
020import org.apache.avalon.framework.service.Serviceable;
021
022import org.ametys.core.user.population.PopulationConsumer;
023import org.ametys.core.user.population.PopulationContextHelper;
024
025/**
026 * Implementation of {@link PopulationConsumer} allowing to know whether a population is used by the contexts or not.
027 */
028public class ContextPopulationConsumer implements PopulationConsumer, Serviceable
029{
030    /** The helper for the associations population/context */
031    private PopulationContextHelper _populationContextHelper;
032
033    @Override
034    public void service(ServiceManager manager) throws ServiceException
035    {
036        _populationContextHelper = (PopulationContextHelper) manager.lookup(PopulationContextHelper.ROLE);
037    }
038    
039    @Override
040    public boolean isInUse(String id)
041    {
042        return _populationContextHelper.isLinked(id);
043    }
044}