| /* |
| * 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.accumulo.core.spi.scan; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.accumulo.core.spi.common.ServiceEnvironment; |
| import org.apache.accumulo.core.spi.scan.ScanInfo.Type; |
| import org.junit.Test; |
| |
| public class IdleRatioScanPrioritizerTest { |
| |
| @Test |
| public void testSort() { |
| long now = System.currentTimeMillis(); |
| |
| List<TestScanInfo> scans = new ArrayList<>(); |
| |
| // Two following have never run, so oldest should go first |
| scans.add(new TestScanInfo("a", Type.SINGLE, now - 3)); |
| scans.add(new TestScanInfo("b", Type.SINGLE, now - 8)); |
| // Two following have different idle ratio and same last run times |
| scans.add(new TestScanInfo("c", Type.SINGLE, now - 16, 2, 10)); |
| scans.add(new TestScanInfo("d", Type.SINGLE, now - 16, 5, 10)); |
| // Two following have same idle ratio and different last run times |
| scans.add(new TestScanInfo("e", Type.SINGLE, now - 12, 5, 9)); |
| scans.add(new TestScanInfo("f", Type.SINGLE, now - 12, 3, 7)); |
| |
| Collections.shuffle(scans); |
| |
| Comparator<ScanInfo> comparator = |
| new IdleRatioScanPrioritizer().createComparator(new ScanPrioritizer.CreateParameters() { |
| |
| @Override |
| public Map<String,String> getOptions() { |
| return Collections.emptyMap(); |
| } |
| |
| @Override |
| public ServiceEnvironment getServiceEnv() { |
| throw new UnsupportedOperationException(); |
| } |
| }); |
| |
| scans.sort(comparator); |
| |
| assertEquals("b", scans.get(0).testId); |
| assertEquals("a", scans.get(1).testId); |
| assertEquals("f", scans.get(2).testId); |
| assertEquals("e", scans.get(3).testId); |
| assertEquals("d", scans.get(4).testId); |
| assertEquals("c", scans.get(5).testId); |
| } |
| } |