WallBenchmarkTest_mysql_concurrent.java

/*
 * Copyright 1999-2017 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.wall;

import java.util.concurrent.CountDownLatch;

import junit.framework.TestCase;

import com.alibaba.druid.wall.WallProvider;
import com.alibaba.druid.wall.spi.MySqlWallProvider;

public class WallBenchmarkTest_mysql_concurrent extends TestCase {

    WallProvider            provider = new MySqlWallProvider();

    public final static int COUNT    = 1000 * 10;

    public void test_0() throws Exception {
        String sql = "SELECT t1.department_id, t2.*\n" + //
                     "FROM hr_info t1, x2 t2\n" + //
                     "WHERE t2.department_id = t1.department_id";
        for (int i = 0; i < 10; ++i) {
            provider.clearCache();
            long startMillis = System.currentTimeMillis();
            perf(sql, 10);
            long millis = System.currentTimeMillis() - startMillis;
            System.out.println("millis : " + millis);
        }
    }

    public void perf(final String sql, int threadCount) {
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch latch = new CountDownLatch(threadCount);
        for (int i = 0; i < threadCount; ++i) {
            final int seed = i * 1000 * 1000 * 100;
            Thread thread = new Thread() {

                public void run() {
                    try {
                        startLatch.await();
                        for (int i = 0; i < COUNT; ++i) {
                            int id = seed + i;
                            String text = sql + " AND FID = " + id;
                            provider.check(text);
                        }
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    } finally {
                        latch.countDown();
                    }
                }
            };
            thread.setName("perf-" + i);
            thread.start();
        }
        
        startLatch.countDown();
        
        try {
            latch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

    }
}