/*
 * Copyright 1999-2011 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.ResultSet;
import java.sql.Statement;
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 Case_Concurrent_50 extends TestCase {

    private String    jdbcUrl;
    private String    user;
    private String    password;
    private String    driverClass;
    private int       initialSize                = 0;
    private int       minIdle                    = 3;
    private int       maxIdle                    = 5;
    private int       maxActive                  = 10;
    private String    validationQuery            = "SELECT 1";
    private boolean   testOnBorrow               = false;

    private long      minEvictableIdleTimeMillis = 3000;
    public final int  LOOP_COUNT                 = 5;
    public final int  COUNT                      = 1000 * 10;

    private final int THREAD_COUNT               = 50;

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

    public void test_0() throws Exception {
        final DruidDataSource dataSource = new DruidDataSource();

        dataSource.setInitialSize(initialSize);
        dataSource.setMaxActive(maxActive);
        dataSource.setMinIdle(minIdle);
        dataSource.setMaxIdle(maxIdle);
        dataSource.setPoolPreparedStatements(true);
        dataSource.setDriverClassName(driverClass);
        dataSource.setUrl(jdbcUrl);
        dataSource.setPoolPreparedStatements(true);
        dataSource.setMaxWait(6000);
        dataSource.setUsername(user);
        dataSource.setPassword(password);
        dataSource.setValidationQuery(validationQuery);
        dataSource.setTestOnBorrow(testOnBorrow);
        dataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);

        for (int i = 0; i < LOOP_COUNT; ++i) {
            p0(dataSource, "druid");
        }

        System.out.println();
    }

    public void test_1() throws Exception {
        final BasicDataSource dataSource = new BasicDataSource();

        dataSource.setInitialSize(initialSize);
        dataSource.setMaxActive(maxActive);
        dataSource.setMinIdle(minIdle);
        dataSource.setMaxIdle(maxIdle);
        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.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);

        for (int i = 0; i < LOOP_COUNT; ++i) {
            p0(dataSource, "dbcp");
        }

        System.out.println();
    }

    private void p0(final DataSource dataSource, String name) throws Exception {
        long startMillis = System.currentTimeMillis();
        long startYGC = TestUtil.getYoungGC();
        long startFullGC = TestUtil.getFullGC();

        final CountDownLatch endLatch = new CountDownLatch(THREAD_COUNT);
        for (int i = 0; i < THREAD_COUNT; ++i) {
            Thread thread = new Thread() {

                public void run() {
                    try {

                        for (int i = 0; i < COUNT; ++i) {
                            Connection conn = dataSource.getConnection();
                            Statement stmt = conn.createStatement();
                            ResultSet rs = stmt.executeQuery("SELECT 1");
                            Thread.sleep(0, 1000 * 100);
                            rs.close();
                            stmt.close();
                            conn.close();
                        }

                    } catch (Exception e) {
                        e.printStackTrace();
                    } finally {
                        endLatch.countDown();
                    }
                }
            };
            thread.start();
        }
        endLatch.await();

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

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