/*
* Copyright (C) 2010-2101 Alibaba Group Holding Limited.
*
* 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.otter.node.etl.load;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.testng.annotations.Test;
import com.alibaba.otter.node.etl.BaseOtterTest;
import com.alibaba.otter.node.etl.load.loader.weight.WeightBarrier;
public class WeightBarrierTest extends BaseOtterTest {
@Test
public void test_simple() {
final WeightBarrier barrier = new WeightBarrier(10);
try {
barrier.await(10);// 可以成功通过
} catch (InterruptedException e1) {
want.fail();
}
try {
final CountDownLatch count = new CountDownLatch(1);
ExecutorService executor = Executors.newCachedThreadPool();
executor.submit(new Callable() {
public Object call() throws Exception {
Thread.sleep(1000);
barrier.single(11);
count.countDown();
return null;
}
});
barrier.await(11);// 会被阻塞
count.await();
executor.shutdown();
} catch (InterruptedException e) {
want.fail();
}
}
@Test
public void test_cocurrent() {
final WeightBarrier barrier = new WeightBarrier(-1);
try {
final CountDownLatch count = new CountDownLatch(10);
ExecutorService executor = Executors.newCachedThreadPool();
for (int i = 0; i < 10; i++) {
final long index = i;
executor.submit(new Callable() {
public Object call() throws Exception {
barrier.await(index);
want.number(index).isLe(barrier.state());
count.countDown();
return null;
}
});
}
Thread.sleep(1000);
for (int i = 0; i < 10; i++) {
barrier.single(i);
}
count.await();
executor.shutdown();
} catch (InterruptedException e) {
want.fail();
}
}
}