org.squashtest.it.infrastructure.DeleteDataSetLoadStrategy.java Source code

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Here is the source code for org.squashtest.it.infrastructure.DeleteDataSetLoadStrategy.java

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/**
 *     This file is part of the Squashtest platform.
 *     Copyright (C) 2010 - 2016 Henix, henix.fr
 *
 *     See the NOTICE file distributed with this work for additional
 *     information regarding copyright ownership.
 *
 *     This 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.
 *
 *     this software 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 this software.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.squashtest.it.infrastructure;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import org.dbunit.dataset.IDataSet;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.unitils.dbunit.datasetloadstrategy.impl.CleanInsertLoadStrategy;
import org.unitils.dbunit.util.DbUnitDatabaseConnection;

public class DeleteDataSetLoadStrategy extends CleanInsertLoadStrategy {

    public Connection getConnection(Session session) {
        try {
            SessionFactoryImplementor sfi = (SessionFactoryImplementor) session.getSessionFactory();
            ConnectionProvider cp = sfi.getConnectionProvider();
            return cp.getConnection();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return null;
    }

    public void delete(Session session, IDataSet dataSet) {
        try {
            String[] tables = dataSet.getTableNames();
            StringBuilder builder = new StringBuilder();
            for (int i = tables.length - 1; i >= 0; i--) {
                builder.append("delete from " + tables[i] + ";");
            }

            Query query = session.createSQLQuery(builder.toString());

            query.executeUpdate();

            getConnection(session).commit();

        } catch (Exception e) {
            throw new RuntimeException(e);
        }

    }

    public void execute(Connection connection, IDataSet dataSet) {
        try {

            String[] tables = dataSet.getTableNames();
            StringBuilder builder = new StringBuilder();
            for (int i = tables.length - 1; i >= 0; i--) {
                builder.append("delete from " + tables[i] + ";");
            }

            PreparedStatement statement = connection.prepareStatement(builder.toString());

            statement.execute();

            connection.commit();

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void execute(DbUnitDatabaseConnection dbUnitDatabaseConnection, IDataSet dataSet) {
        try {
            execute(dbUnitDatabaseConnection.getConnection(), dataSet);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

}