/*
 * @(#)AvailableUserQueues.java
 *
 * Copyright 2009 Instituto Superior Tecnico
 * Founding Authors: Paulo Abrantes
 * 
 *      https://fenix-ashes.ist.utl.pt/
 * 
 *   This file is part of the Meta-Workflow Module.
 *
 *   The Meta-Workflow Module is free software: you can
 *   redistribute it and/or modify it under the terms of the GNU Lesser General
 *   Public License as published by the Free Software Foundation, either version 
 *   3 of the License, or (at your option) any later version.
 *
 *   The Meta-Workflow Module is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with the Meta-Workflow Module. If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package module.metaWorkflow.presentationTier.renderers.providers;

import java.util.Collections;

import module.metaWorkflow.domain.WorkflowMetaType;
import pt.ist.bennu.core.applicationTier.Authenticate.UserView;
import pt.ist.bennu.core.domain.User;
import pt.ist.fenixWebFramework.renderers.DataProvider;
import pt.ist.fenixWebFramework.renderers.components.converters.Converter;

/**
 * 
 * @author Paulo Abrantes
 * 
 */
public class AvailableUserQueues implements DataProvider {

    @Override
    public Converter getConverter() {
        return null;
    }

    @Override
    public Object provide(Object source, Object value) {
        User user = UserView.getCurrentUser();
        if (user == null) {
            return Collections.EMPTY_LIST;
        }

        return WorkflowMetaType.getAllQueuesForUser(user);
    }
}