| /** |
| * 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.ipc; |
| |
| import java.util.concurrent.TimeUnit; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.ipc.ProcessingDetails.Timing; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.apache.hadoop.ipc.WeightedTimeCostProvider.DEFAULT_LOCKEXCLUSIVE_WEIGHT; |
| import static org.apache.hadoop.ipc.WeightedTimeCostProvider.DEFAULT_LOCKFREE_WEIGHT; |
| import static org.apache.hadoop.ipc.WeightedTimeCostProvider.DEFAULT_LOCKSHARED_WEIGHT; |
| import static org.junit.Assert.assertEquals; |
| |
| /** Tests for {@link WeightedTimeCostProvider}. */ |
| public class TestWeightedTimeCostProvider { |
| |
| private static final int QUEUE_TIME = 3; |
| private static final int LOCKFREE_TIME = 5; |
| private static final int LOCKSHARED_TIME = 7; |
| private static final int LOCKEXCLUSIVE_TIME = 11; |
| |
| private WeightedTimeCostProvider costProvider; |
| private ProcessingDetails processingDetails; |
| |
| @Before |
| public void setup() { |
| costProvider = new WeightedTimeCostProvider(); |
| processingDetails = new ProcessingDetails(TimeUnit.MILLISECONDS); |
| processingDetails.set(Timing.QUEUE, QUEUE_TIME); |
| processingDetails.set(Timing.LOCKFREE, LOCKFREE_TIME); |
| processingDetails.set(Timing.LOCKSHARED, LOCKSHARED_TIME); |
| processingDetails.set(Timing.LOCKEXCLUSIVE, LOCKEXCLUSIVE_TIME); |
| } |
| |
| @Test(expected = AssertionError.class) |
| public void testGetCostBeforeInit() { |
| costProvider.getCost(null); |
| } |
| |
| @Test |
| public void testGetCostDefaultWeights() { |
| costProvider.init("foo", new Configuration()); |
| long actualCost = costProvider.getCost(processingDetails); |
| long expectedCost = DEFAULT_LOCKFREE_WEIGHT * LOCKFREE_TIME |
| + DEFAULT_LOCKSHARED_WEIGHT * LOCKSHARED_TIME |
| + DEFAULT_LOCKEXCLUSIVE_WEIGHT * LOCKEXCLUSIVE_TIME; |
| assertEquals(expectedCost, actualCost); |
| } |
| |
| @Test |
| public void testGetCostConfiguredWeights() { |
| Configuration conf = new Configuration(); |
| int queueWeight = 1000; |
| int lockfreeWeight = 10000; |
| int locksharedWeight = 100000; |
| conf.setInt("foo.weighted-cost.queue", queueWeight); |
| conf.setInt("foo.weighted-cost.lockfree", lockfreeWeight); |
| conf.setInt("foo.weighted-cost.lockshared", locksharedWeight); |
| conf.setInt("bar.weighted-cost.lockexclusive", 0); // should not apply |
| costProvider.init("foo", conf); |
| long actualCost = costProvider.getCost(processingDetails); |
| long expectedCost = queueWeight * QUEUE_TIME |
| + lockfreeWeight * LOCKFREE_TIME |
| + locksharedWeight * LOCKSHARED_TIME |
| + DEFAULT_LOCKEXCLUSIVE_WEIGHT * LOCKEXCLUSIVE_TIME; |
| assertEquals(expectedCost, actualCost); |
| } |
| } |