UnitAssignmentRemovalListener.java

/*
 * Copyright (c) 2002-2021, City of Paris
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice
 *     and the following disclaimer.
 *
 *  2. Redistributions in binary form must reproduce the above copyright notice
 *     and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *
 *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
 *     contributors may be used to endorse or promote products derived from
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * License 1.0
 */
package fr.paris.lutece.plugins.workflow.modules.unittree.service.unit;

import java.util.List;

import fr.paris.lutece.plugins.unittree.business.assignment.UnitAssignment;
import fr.paris.lutece.plugins.unittree.business.assignment.UnitAssignmentHome;
import fr.paris.lutece.plugins.unittree.service.UnitErrorException;
import fr.paris.lutece.plugins.unittree.service.unit.IUnitRemovalListener;

/**
 * This class is a listener when a {@code Unit} is removed. This listener tests if there is no resource assigned to the removed unit.
 *
 */
public class UnitAssignmentRemovalListener implements IUnitRemovalListener
{
    private static final String MESSAGE_UNIT_REMOVAL_ERROR = "module.workflow.unittree.unit.assignment.removal.listener.error";

    /**
     * {@inheritDoc}
     */
    @Override
    public void notify( int nIdRemovedUnit ) throws UnitErrorException
    {
        List<UnitAssignment> listUnitAssignments = UnitAssignmentHome.findByUnit( nIdRemovedUnit );

        if ( !listUnitAssignments.isEmpty( ) )
        {
            throw new UnitErrorException( MESSAGE_UNIT_REMOVAL_ERROR );
        }
    }

}