/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed 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 com.alibaba.druid.benckmark.pool;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.text.NumberFormat;
import java.util.concurrent.CountDownLatch;

import javax.sql.DataSource;

import junit.framework.TestCase;

import org.apache.commons.dbcp.BasicDataSource;

import com.alibaba.druid.TestUtil;
import com.alibaba.druid.pool.DruidDataSource;

public class CaseKylin_mysql extends TestCase {
    private String jdbcUrl;
    private String user;
    private String password;
    private String driverClass;
    private int initialSize = 1;
    private int minIdle = 1;
    private int maxIdle = 20;
    private int maxActive = 20;
    private int maxWait = 60000;
    private String validationQuery = null;      // "SELECT 1";
    private int threadCount = 15;
    private int TEST_COUNT = 3;
    final int LOOP_COUNT = 1000 * 100;
    private boolean testWhileIdle = true;
    private boolean testOnBorrow = false;
    private boolean testOnReturn = false;

    private boolean removeAbandoned = true;
    private int removeAbandonedTimeout = 180;
    private long timeBetweenEvictionRunsMillis = 60000;
    private long minEvictableIdleTimeMillis = 1800000;
    private int numTestsPerEvictionRun = 20;

    protected void setUp() throws Exception {
        // jdbcUrl = "jdbc:fake:dragoon_v25masterdb";
        // user = "dragoon25";
        // password = "dragoon25";
        // driverClass = "com.alibaba.druid.mock.MockDriver";

        jdbcUrl = "jdbc:mysql://a.b.c.d:3306/druid2";
        user = "root";
        password = "root";
        driverClass = "com.mysql.jdbc.Driver";

        // jdbcUrl = "jdbc:oracle:thin:@a.b.c.d:1521:ocnauto";
        // user = "alibaba";
        // password = "ccbuauto";
        // driverClass = "oracle.jdbc.driver.OracleDriver";
    }

    public void test_perf() throws Exception {
        for (int i = 0; i < 5; ++i) {
            druid();
            dbcp();
        }
    }

    public void druid() throws Exception {
        DruidDataSource dataSource = new DruidDataSource();

        dataSource.setInitialSize(initialSize);
        dataSource.setMaxActive(maxActive);
        dataSource.setMaxIdle(maxIdle);
        dataSource.setMinIdle(minIdle);
        dataSource.setMaxWait(maxWait);
        dataSource.setPoolPreparedStatements(true);
        dataSource.setDriverClassName(driverClass);
        dataSource.setUrl(jdbcUrl);
        dataSource.setPoolPreparedStatements(true);
        dataSource.setUsername(user);
        dataSource.setPassword(password);
        dataSource.setValidationQuery(validationQuery);
        dataSource.setTestOnBorrow(testOnBorrow);
        dataSource.setTestOnBorrow(testWhileIdle);
        dataSource.setTestOnBorrow(testOnReturn);
        dataSource.setRemoveAbandoned(removeAbandoned);
        dataSource.setRemoveAbandonedTimeout(removeAbandonedTimeout);
        dataSource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        dataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        dataSource.setNumTestsPerEvictionRun(numTestsPerEvictionRun);

        for (int i = 0; i < TEST_COUNT; ++i) {
            p0(dataSource, "druid", threadCount);
        }
        System.out.println();
    }

    public void dbcp() throws Exception {
        final BasicDataSource dataSource = new BasicDataSource();

        dataSource.setInitialSize(initialSize);
        dataSource.setMaxActive(maxActive);
        dataSource.setMaxIdle(maxIdle);
        dataSource.setMinIdle(minIdle);
        dataSource.setMaxWait(maxWait);
        dataSource.setPoolPreparedStatements(true);
        dataSource.setDriverClassName(driverClass);
        dataSource.setUrl(jdbcUrl);
        dataSource.setPoolPreparedStatements(true);
        dataSource.setUsername(user);
        dataSource.setPassword(password);
        dataSource.setValidationQuery(validationQuery);
        dataSource.setTestOnBorrow(testOnBorrow);
        dataSource.setTestOnBorrow(testWhileIdle);
        dataSource.setTestOnBorrow(testOnReturn);
        dataSource.setRemoveAbandoned(removeAbandoned);
        dataSource.setRemoveAbandonedTimeout(removeAbandonedTimeout);
        dataSource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        dataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        dataSource.setNumTestsPerEvictionRun(numTestsPerEvictionRun);

        for (int i = 0; i < TEST_COUNT; ++i) {
            p0(dataSource, "dbcp", threadCount);
        }
        System.out.println();
    }

    private void p0(final DataSource dataSource, String name, int threadCount) throws Exception {
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);
        for (int i = 0; i < threadCount; ++i) {
            Thread thread = new Thread() {
                public void run() {
                    try {
                        startLatch.await();

                        for (int i = 0; i < LOOP_COUNT; ++i) {
                            Connection conn = dataSource.getConnection();
                            PreparedStatement stmt = conn.prepareStatement("SELECT 1 FROM DUAL");
                            ResultSet rs = stmt.executeQuery();
                            rs.next();
                            rs.getInt(1);
                            rs.close();
                            stmt.close();
                            conn.close();
                        }
                    } catch (Exception ex) {
                        ex.printStackTrace();
                    }
                    endLatch.countDown();
                }
            };
            thread.start();
        }
        long startMillis = System.currentTimeMillis();
        long startYGC = TestUtil.getYoungGC();
        long startFullGC = TestUtil.getFullGC();
        startLatch.countDown();
        endLatch.await();

        long millis = System.currentTimeMillis() - startMillis;
        long ygc = TestUtil.getYoungGC() - startYGC;
        long fullGC = TestUtil.getFullGC() - startFullGC;

        System.out.println("thread " + threadCount + " " + name + " millis : "
                + NumberFormat.getInstance().format(millis) + ", YGC " + ygc + " FGC " + fullGC);
    }
}
