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209 lines
12 KiB
Java
209 lines
12 KiB
Java
import com.mysql.cj.MysqlType;
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import java.sql.*;
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public class MySQLJavaClientTest {
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public static void main(String[] args) {
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int i = 0;
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String host = "127.0.0.1";
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String port = "9004";
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String user = "default";
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String password = "";
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String database = "default";
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String binary = "false";
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while (i < args.length) {
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switch (args[i]) {
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case "--host":
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host = args[++i];
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break;
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case "--port":
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port = args[++i];
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break;
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case "--user":
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user = args[++i];
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break;
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case "--password":
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password = args[++i];
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break;
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case "--database":
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database = args[++i];
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break;
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case "--binary":
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binary = args[++i];
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break;
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default:
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i++;
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break;
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}
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}
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// useServerPrepStmts=true -> COM_STMT_PREPARE + COM_STMT_EXECUTE -> binary
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// useServerPrepStmts=false -> COM_QUERY -> text
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String jdbcUrl = String.format("jdbc:mysql://%s:%s/%s?useSSL=false&useServerPrepStmts=%s", host, port, database, binary);
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try {
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Class.forName("com.mysql.cj.jdbc.Driver");
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Connection conn = DriverManager.getConnection(jdbcUrl, user, password);
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testSimpleDataTypes(conn);
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testStringTypes(conn);
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testLowCardinalityAndNullableTypes(conn);
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testDecimalTypes(conn);
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testMiscTypes(conn);
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testDateTypes(conn);
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testUnusualDateTime64Scales(conn);
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testDateTimeTimezones(conn);
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testSuspiciousNullableLowCardinalityTypes(conn);
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conn.close();
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} catch (Exception e) {
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e.printStackTrace();
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System.exit(1);
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}
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}
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private static void testSimpleDataTypes(Connection conn) throws SQLException {
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System.out.println("### testSimpleDataTypes");
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ResultSet rs = conn.prepareStatement("SELECT * FROM simple_data_types").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %d, wasNull: %b\n", getMysqlType(rs, "i8"), rs.getInt("i8"), rs.wasNull());
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System.out.printf("%s, value: %d, wasNull: %b\n", getMysqlType(rs, "i16"), rs.getInt("i16"), rs.wasNull());
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System.out.printf("%s, value: %d, wasNull: %b\n", getMysqlType(rs, "i32"), rs.getInt("i32"), rs.wasNull());
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System.out.printf("%s, value: %d, wasNull: %b\n", getMysqlType(rs, "i64"), rs.getLong("i64"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "i128"), rs.getString("i128"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "i256"), rs.getString("i256"), rs.wasNull());
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System.out.printf("%s, value: %d, wasNull: %b\n", getMysqlType(rs, "ui8"), rs.getInt("ui8"), rs.wasNull());
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System.out.printf("%s, value: %d, wasNull: %b\n", getMysqlType(rs, "ui16"), rs.getInt("ui16"), rs.wasNull());
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System.out.printf("%s, value: %d, wasNull: %b\n", getMysqlType(rs, "ui32"), rs.getLong("ui32"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "ui64"), rs.getString("ui64"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "ui128"), rs.getString("ui128"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "ui256"), rs.getString("ui256"), rs.wasNull());
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System.out.printf("%s, value: %f, wasNull: %b\n", getMysqlType(rs, "f32"), rs.getFloat("f32"), rs.wasNull());
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System.out.printf("%s, value: %f, wasNull: %b\n", getMysqlType(rs, "f64"), rs.getFloat("f64"), rs.wasNull());
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System.out.printf("%s, value: %b, wasNull: %b\n", getMysqlType(rs, "b"), rs.getBoolean("b"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testStringTypes(Connection conn) throws SQLException {
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System.out.println("### testStringTypes");
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ResultSet rs = conn.prepareStatement("SELECT * FROM string_types").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "s"), rs.getString("s"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "sn"), rs.getString("sn"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "lc"), rs.getString("lc"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "nlc"), rs.getString("nlc"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testLowCardinalityAndNullableTypes(Connection conn) throws SQLException {
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System.out.println("### testLowCardinalityAndNullableTypes");
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ResultSet rs = conn.prepareStatement("SELECT * FROM low_cardinality_and_nullable_types").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "ilc"), rs.getInt("ilc"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dlc"), rs.getDate("dlc"), rs.wasNull());
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// NULL int is represented as zero
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "ni"), rs.getInt("ni"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testDecimalTypes(Connection conn) throws SQLException {
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System.out.println("### testDecimalTypes");
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ResultSet rs = conn.prepareStatement("SELECT * FROM decimal_types").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d32"), rs.getBigDecimal("d32").toPlainString(), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d64"), rs.getBigDecimal("d64").toPlainString(), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d128_native"), rs.getBigDecimal("d128_native").toPlainString(), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d128_text"), rs.getString("d128_text"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d256"), rs.getString("d256"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testDateTypes(Connection conn) throws SQLException {
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System.out.println("### testDateTypes");
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ResultSet rs = conn.prepareStatement("SELECT * FROM date_types").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d"), rs.getDate("d"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d32"), rs.getDate("d32"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt"), rs.getTimestamp("dt"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_3"), rs.getTimestamp("dt64_3"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_6"), rs.getTimestamp("dt64_6"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_9"), rs.getTimestamp("dt64_9"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testUnusualDateTime64Scales(Connection conn) throws SQLException {
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System.out.println("### testUnusualDateTime64Scales");
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ResultSet rs = conn.prepareStatement("SELECT * FROM unusual_datetime64_scales").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_0"), rs.getTimestamp("dt64_0"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_1"), rs.getTimestamp("dt64_1"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_2"), rs.getTimestamp("dt64_2"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_4"), rs.getTimestamp("dt64_4"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_5"), rs.getTimestamp("dt64_5"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_7"), rs.getTimestamp("dt64_7"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_8"), rs.getTimestamp("dt64_8"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testDateTimeTimezones(Connection conn) throws SQLException {
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System.out.println("### testDateTimeTimezones");
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ResultSet rs = conn.prepareStatement("SELECT * FROM datetime_timezones").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt"), rs.getTimestamp("dt"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt64_3"), rs.getTimestamp("dt64_3"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testMiscTypes(Connection conn) throws SQLException {
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System.out.println("### testMiscTypes");
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ResultSet rs = conn.prepareStatement("SELECT * FROM misc_types").executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "a"), rs.getString("a"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "u"), rs.getString("u"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "t"), rs.getString("t"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "m"), rs.getString("m"), rs.wasNull());
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}
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System.out.println();
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}
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private static void testSuspiciousNullableLowCardinalityTypes(Connection conn) throws SQLException {
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System.out.println("### testSuspiciousNullableLowCardinalityTypes");
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String query = "SELECT * FROM suspicious_nullable_low_cardinality_types";
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ResultSet rs = conn.prepareStatement(query).executeQuery();
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int rowNum = 1;
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while (rs.next()) {
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System.out.printf("Row #%d\n", rowNum++);
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "f"), rs.getFloat("f"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "d"), rs.getDate("d"), rs.wasNull());
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System.out.printf("%s, value: %s, wasNull: %b\n", getMysqlType(rs, "dt"), rs.getTimestamp("dt"), rs.wasNull());
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}
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System.out.println();
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}
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private static String getMysqlType(ResultSet rs, String columnLabel) throws SQLException {
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ResultSetMetaData meta = rs.getMetaData();
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return String.format("%s type is %s", columnLabel, MysqlType.getByJdbcType(meta.getColumnType(rs.findColumn(columnLabel))));
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}
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}
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