HikariCP Issue1118

Issue1118.java

package com.zaxxer.hikari.benchmark;

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;

import java.sql.*;
import java.util.concurrent.ThreadLocalRandom;

/**
 * docker run --name some-mysql -e MYSQL_USER=brettw -e MYSQL_PASSWORD=secret -e MYSQL_DATABASE=issue1118 -e MYSQL_ALLOW_EMPTY_PASSWORD=yes -p 3306:3306 -d mysql:5.5
 */
public class Issue1118 {
    private static final String jdbcUrl = "jdbc:mysql://localhost/issue1118";

    private HikariDataSource DS;

    public static void main(String[] args) throws Exception {
        Issue1118 issue = new Issue1118();
        issue.setupHikari();

        issue.runTest();

        issue.DS.close();
    }

    private void runTest() throws SQLException {
        final ThreadLocalRandom random = ThreadLocalRandom.current();

        final String sql = "INSERT INTO CUST_STATUS_CODE_ALARM(ALARM_ID,SCOPE,CACHE_GROUP,ISP,CACHE_IP,CHECK_RESULT,ORI_DATA) VALUES(?,?,?,?,?,?,?)";

        try (Connection conn = DS.getConnection(); PreparedStatement pstmt = conn.prepareStatement(sql)) {
            final long start = System.currentTimeMillis();

            for (int i = 0; i < 10000; i++) {
                pstmt.setString(1, random.nextInt() + "bbb" + random.nextInt());
                pstmt.setString(2, "");
                pstmt.setString(3, "");
                pstmt.setString(4, "");
                pstmt.setString(5, "");
                pstmt.setString(6, "");
                pstmt.setString(7, "");
                pstmt.addBatch();
            }

            pstmt.executeBatch();
            conn.commit();
            pstmt.close();

            final long elapsed = (System.currentTimeMillis() - start);

            System.out.printf("Insertion time: %dms\n", elapsed);

            try (Statement stmt = conn.createStatement();
                 ResultSet rs = stmt.executeQuery("SELECT COUNT(*) FROM CUST_STATUS_CODE_ALARM")) {

                if (rs.next()) {
                    System.out.printf("Select count(*) returned %d rows\n", rs.getInt(1));
                }
            }
        }
    }

    private void setupHikari()
    {
        HikariConfig config = new HikariConfig();
        config.setJdbcUrl(jdbcUrl);
        config.setUsername("brettw");
        config.setPassword("secret");
        config.setAutoCommit(false);
        config.addDataSourceProperty("rewriteBatchedStatements", "true");

        DS = new HikariDataSource(config);
    }
}