/*
* 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.common.jmx;
import java.util.concurrent.locks.LockSupport;
import org.apache.commons.lang.math.RandomUtils;
import org.testng.annotations.Test;
import com.alibaba.otter.node.etl.BaseOtterTest;
import com.alibaba.otter.node.etl.common.jmx.StageAggregation.AggregationItem;
public class StageAggregationTest extends BaseOtterTest {
@Test
public void test_normal() {
StageAggregation aggregation = new StageAggregation(256);
for (int i = 0; i < 128; i++) {
long now = System.currentTimeMillis();
aggregation.push(new AggregationItem(now - 10 - RandomUtils.nextInt(100), now));
LockSupport.parkNanos(1000 * 1000L);
}
LockSupport.parkNanos(2000 * 1000 * 1000L);
for (int i = 0; i < 200; i++) {
long now = System.currentTimeMillis();
aggregation.push(new AggregationItem(now - 10 - RandomUtils.nextInt(100), now));
LockSupport.parkNanos(1000 * 1000L);
}
String result = aggregation.histogram();
System.out.println(result);
}
@Test
public void test_zero() {
StageAggregation aggregation = new StageAggregation(256);
String result = aggregation.histogram();
System.out.println(result);
}
}