genepi.db.JdbcDataAccessObject.java Source code

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Here is the source code for genepi.db.JdbcDataAccessObject.java

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/*******************************************************************************
 * Copyright (C) 2009-2016 Lukas Forer and Sebastian Schnherr
 *  
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by 
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *  
 * This program 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 General Public License for more details.
 *  
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

package genepi.db;

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.ResultSetHandler;

public abstract class JdbcDataAccessObject {

    protected QueryRunner runner = null;

    protected Database database;

    public JdbcDataAccessObject(Database database) {
        this.database = database;
        runner = new QueryRunner(database.getDataSource());
    }

    /*
     * protected Connection getConnection() { return database.getConnection(); }
     */

    public Object queryForObject(String sql, Object[] params, IRowMapper mapper) throws SQLException {
        return runner.query(sql, new ObjectHandler(mapper), params);
    }

    @SuppressWarnings("rawtypes")
    public List query(String sql, Object[] params, IRowMapper mapper) throws SQLException {
        return (List) runner.query(sql, new ListHandler(mapper), params);
    }

    public Object queryForObject(String sql, IRowMapper mapper) throws SQLException {
        return runner.query(sql, new ObjectHandler(mapper));
    }

    @SuppressWarnings("rawtypes")
    public Map queryForMap(String sql, IRowMapMapper mapper) throws SQLException {
        return (Map) runner.query(sql, new MapHandler(mapper));
    }

    @SuppressWarnings("rawtypes")
    public Map queryForMap(String sql, Object[] params, IRowMapMapper mapper) throws SQLException {
        return (Map) runner.query(sql, new MapHandler(mapper), params);
    }

    @SuppressWarnings("rawtypes")
    public Map queryForGroupedList(String sql, Object[] params, IRowMapMapper mapper) throws SQLException {
        return (Map) runner.query(sql, new GroupedListHandler(mapper), params);
    }

    @SuppressWarnings("rawtypes")
    public Map queryForGroupedList(String sql, IRowMapMapper mapper) throws SQLException {
        return (Map) runner.query(sql, new GroupedListHandler(mapper));
    }

    @SuppressWarnings("rawtypes")
    public List query(String sql, IRowMapper mapper) throws SQLException {
        return (List) runner.query(sql, new ListHandler(mapper));
    }

    public int update(String sql, Object[] params) throws SQLException {
        return runner.update(sql.toString(), params);
    }

    public int update(String sql) throws SQLException {
        return runner.update(sql.toString());
    }

    public int insert(String sql, Object[] params) throws SQLException {

        Connection connection = database.getDataSource().getConnection();

        try {
            PreparedStatement statement = connection.prepareStatement(sql, PreparedStatement.RETURN_GENERATED_KEYS);

            runner.fillStatement(statement, params);

            statement.executeUpdate();

            ResultSet rs = statement.getGeneratedKeys();
            rs.beforeFirst();
            rs.next();
            int id = rs.getInt(1);
            connection.close();
            return id;
        } catch (Exception e) {
            throw e;
        } finally {
            connection.close();
        }
    }

    public int[] batch(String sql, Object[][] params) throws SQLException {

        return runner.batch(sql.toString(), params);
    }

    // DBUtils 1.6 method
    public List<Integer> batchGeneratedKeys(String sql, Object[][] params) throws SQLException {

        ResultSetHandler<List<Integer>> handler = new ResultSetHandler<List<Integer>>() {

            public List<Integer> handle(ResultSet rs) throws SQLException {
                List<Integer> identifiers = new ArrayList<Integer>();

                while (rs.next()) {
                    identifiers.add(rs.getInt(1));
                }

                return identifiers;
            }
        };

        return runner.insertBatch(sql, handler, params);
    }

    public boolean callProcedure(String sql, Object[] params) throws SQLException {

        Connection connection = null;

        try {
            connection = database.getDataSource().getConnection();

            CallableStatement cstmt = connection.prepareCall(sql);
            runner.fillStatement(cstmt, params);
            boolean state = cstmt.execute();
            cstmt.close();
            connection.close();
            return state;
        } catch (SQLException e) {
            throw e;
        } finally {
            connection.close();
        }
    }

    public static class IntegerMapper implements IRowMapper {

        @Override
        public Object mapRow(ResultSet rs, int row) throws SQLException {
            return rs.getInt(1);
        }

    }

}