org.apache.ctakes.jdl.test.SqlJdl.java Source code

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Here is the source code for org.apache.ctakes.jdl.test.SqlJdl.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.ctakes.jdl.test;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang.StringUtils;

/**
 * Manage of sql for resources files.
 * 
 * @author mas
 */
public class SqlJdl {
    /**
     * @param connection
     *            the connection to manage
     * @throws SQLException
     *             exception
     */
    public static void create(Connection connection) throws SQLException {
        String sql = "create table tab_test (id numeric, name varchar(32), thekey numeric, thevalue varchar(64), code numeric, descr varchar(256));";
        Statement statement = connection.createStatement();
        statement.executeUpdate(sql);
        statement.close();
    }

    /**
     * @param connection
     *            the connection to manage
     * @return list of rows
     * @throws SQLException
     *             exception
     */
    private static List<String[]> select(Connection connection) throws SQLException {
        String sql = "select * from tab_test;";
        Statement statement = connection.createStatement();
        ResultSet resultSet = statement.executeQuery(sql);
        List<String[]> list = new ArrayList<String[]>();
        while (resultSet.next()) {
            list.add(new String[] { resultSet.getString(1), resultSet.getString(2), resultSet.getString(3),
                    resultSet.getString(4), resultSet.getString(5), resultSet.getString(6) });
        }
        resultSet.close();
        statement.close();
        return list;
    }

    /**
     * @param connection
     *            the connetcion to manage
     * @param print
     *            check if print rows
     * @return list of rows
     * @throws SQLException
     *             exception
     */
    public static List<String[]> select(Connection connection, boolean print) throws SQLException {
        List<String[]> list = select(connection);
        if (print) {
            for (String[] c : list) {
                System.out.println(c[0] + "\t" + StringUtils.rightPad(c[1], 31) + c[2] + "\t"
                        + StringUtils.rightPad(c[3], 23) + c[4] + "\t" + c[5]);
            }
        }
        return list;
    }

    /**
     * @param connection
     *            the connection to manage
     * @throws SQLException
     *             exception
     */
    public static void delete(Connection connection) throws SQLException {
        String sql = "delete from tab_test";
        Statement statement = connection.createStatement();
        statement.executeUpdate(sql);
        statement.close();
    }

    /**
     * @param connection
     *            the connection to manage
     * @throws SQLException
     *             exception
     */
    public static void drop(Connection connection) throws SQLException {
        String sql = "drop table tab_test;";
        Statement statement = connection.createStatement();
        statement.executeUpdate(sql);
        statement.close();
    }
}