package org.hisp.dhis.program;

/*
 * Copyright (c) 2004-2016, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project 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 OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 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.
 */

import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;

import org.hisp.dhis.system.deletion.DeletionHandler;
import org.springframework.beans.factory.annotation.Autowired;

/**
 * @author Chau Thu Tran
 */
public class ProgramIndicatorDeletionHandler
    extends DeletionHandler
{
    // -------------------------------------------------------------------------
    // Dependencies
    // -------------------------------------------------------------------------

    @Autowired
    private ProgramIndicatorService programIndicatorService;

    // -------------------------------------------------------------------------
    // Implementation methods
    // -------------------------------------------------------------------------

    @Override
    public String getClassName()
    {
        return ProgramIndicator.class.getSimpleName();
    }

    @Override
    public void deleteProgram( Program program )
    {
        Collection<ProgramIndicator> indicators = new HashSet<ProgramIndicator>( program.getProgramIndicators() );

        Iterator<ProgramIndicator> iter = indicators.iterator();

        while ( iter.hasNext() )
        {
            ProgramIndicator indicator = iter.next();
            programIndicatorService.deleteProgramIndicator( indicator );
        }
    }
}
