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Viewing changes to dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/dataset/CompleteDataSetRegistrationDeletionHandler.java

  • Committer: larshelge at gmail
  • Date: 2009-03-03 16:46:36 UTC
  • Revision ID: larshelge@gmail.com-20090303164636-2sjlrquo7ib1gf7r
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dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/dataset/CompleteDataSetRegistrationDeletionHandler.java
 
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package org.hisp.dhis.dataset;
 
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/*
 
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 * Copyright (c) 2004-2007, University of Oslo
 
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 * All rights reserved.
 
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 *
 
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 * Redistribution and use in source and binary forms, with or without
 
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 * modification, are permitted provided that the following conditions are met:
 
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 * * Redistributions of source code must retain the above copyright notice, this
 
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 *   list of conditions and the following disclaimer.
 
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 * * Redistributions in binary form must reproduce the above copyright notice,
 
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 *   this list of conditions and the following disclaimer in the documentation
 
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 *   and/or other materials provided with the distribution.
 
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 * * Neither the name of the HISP project nor the names of its contributors may
 
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 *   be used to endorse or promote products derived from this software without
 
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 *   specific prior written permission.
 
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 *
 
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 
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 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 
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 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 
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 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 
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 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 
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 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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 */
 
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import java.sql.ResultSet;
 
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import java.sql.SQLException;
 
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import org.hisp.dhis.jdbc.StatementHolder;
 
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import org.hisp.dhis.jdbc.StatementManager;
 
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import org.hisp.dhis.period.Period;
 
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import org.hisp.dhis.source.Source;
 
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import org.hisp.dhis.system.deletion.DeletionHandler;
 
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/**
 
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 * @author Lars Helge Overland
 
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 * @version $Id$
 
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 */
 
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public class CompleteDataSetRegistrationDeletionHandler
 
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    extends DeletionHandler
 
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{
 
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    // -------------------------------------------------------------------------
 
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    // Dependencies
 
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    // -------------------------------------------------------------------------
 
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    public CompleteDataSetRegistrationService completeDataSetRegistrationService;
 
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    public void setCompleteDataSetRegistrationService( CompleteDataSetRegistrationService completeDataSetRegistrationService )
 
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    {
 
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        this.completeDataSetRegistrationService = completeDataSetRegistrationService;
 
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    }
 
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    private StatementManager statementManager;
 
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    public void setStatementManager( StatementManager statementManager )
 
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    {
 
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        this.statementManager = statementManager;
 
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    }
 
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    // -------------------------------------------------------------------------
 
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    // DeletionHandler implementation
 
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    // -------------------------------------------------------------------------
 
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    @Override
 
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    public String getClassName()
 
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    {
 
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        return CompleteDataSetRegistration.class.getSimpleName();
 
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    }
 
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    @Override
 
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    public void deleteDataSet( DataSet dataSet )
 
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    {
 
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        completeDataSetRegistrationService.deleteCompleteDataSetRegistrations( dataSet );
 
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    }
 
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    @Override
 
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    public boolean allowDeletePeriod( Period period )
 
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    {
 
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        StatementHolder holder = statementManager.getHolder();
 
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        try
 
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        {
 
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            String sql = "SELECT COUNT(*) FROM completedatasetregistration where periodid=" + period.getId();
 
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            ResultSet resultSet = holder.getStatement().executeQuery( sql );
 
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            int count = resultSet.next() ? resultSet.getInt( 1 ) : 0;
 
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            return count == 0;
 
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        }
 
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        catch ( SQLException ex )
 
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        {
 
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            throw new RuntimeException( "Failed to get number of completedatasetregistrations for period", ex );
 
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        }
 
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        finally
 
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        {
 
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            holder.close();
 
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        }
 
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    }
 
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    @Override
 
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    public boolean allowDeleteSource( Source source )
 
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    {
 
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        StatementHolder holder = statementManager.getHolder();
 
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        try
 
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        {
 
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            String sql = "SELECT COUNT(*) FROM completedatasetregistration where sourceid=" + source.getId();
 
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            ResultSet resultSet = holder.getStatement().executeQuery( sql );
 
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            int count = resultSet.next() ? resultSet.getInt( 1 ) : 0;
 
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            return count == 0;
 
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        }
 
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        catch ( SQLException ex )
 
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        {
 
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            throw new RuntimeException( "Failed to get number of completedatasetregistrations for source", ex );
 
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        }
 
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        finally
 
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        {
 
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            holder.close();
 
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        }
 
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    }
 
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}