| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.hadoop.fs.azure.metrics; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Date; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.junit.Test; |
| |
| public class TestBandwidthGaugeUpdater { |
| @Test |
| public void testSingleThreaded() throws Exception { |
| AzureFileSystemInstrumentation instrumentation = |
| new AzureFileSystemInstrumentation(new Configuration()); |
| BandwidthGaugeUpdater updater = |
| new BandwidthGaugeUpdater(instrumentation, 1000, true); |
| updater.triggerUpdate(true); |
| assertEquals(0, AzureMetricsTestUtil.getCurrentBytesWritten(instrumentation)); |
| updater.blockUploaded(new Date(), new Date(), 150); |
| updater.triggerUpdate(true); |
| assertEquals(150, AzureMetricsTestUtil.getCurrentBytesWritten(instrumentation)); |
| updater.blockUploaded(new Date(new Date().getTime() - 10000), |
| new Date(), 200); |
| updater.triggerUpdate(true); |
| long currentBytes = AzureMetricsTestUtil.getCurrentBytesWritten(instrumentation); |
| assertTrue( |
| "We expect around (200/10 = 20) bytes written as the gauge value." + |
| "Got " + currentBytes, |
| currentBytes > 18 && currentBytes < 22); |
| updater.close(); |
| } |
| |
| @Test |
| public void testMultiThreaded() throws Exception { |
| final AzureFileSystemInstrumentation instrumentation = |
| new AzureFileSystemInstrumentation(new Configuration()); |
| final BandwidthGaugeUpdater updater = |
| new BandwidthGaugeUpdater(instrumentation, 1000, true); |
| Thread[] threads = new Thread[10]; |
| for (int i = 0; i < threads.length; i++) { |
| threads[i] = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| updater.blockDownloaded(new Date(), new Date(), 10); |
| updater.blockDownloaded(new Date(0), new Date(0), 10); |
| } |
| }); |
| } |
| for (Thread t : threads) { |
| t.start(); |
| } |
| for (Thread t : threads) { |
| t.join(); |
| } |
| updater.triggerUpdate(false); |
| assertEquals(10 * threads.length, AzureMetricsTestUtil.getCurrentBytesRead(instrumentation)); |
| updater.close(); |
| } |
| } |