| package org.apache.helix.cloud.virtualTopologyGroup; |
| |
| /* |
| * 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. |
| */ |
| |
| import com.google.common.collect.Sets; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.helix.cloud.constants.VirtualTopologyGroupConstants; |
| import org.apache.helix.cloud.topology.FifoVirtualGroupAssignmentAlgorithm; |
| import org.apache.helix.cloud.topology.VirtualGroupAssignmentAlgorithm; |
| import org.apache.helix.util.HelixUtil; |
| import org.testng.Assert; |
| import org.testng.annotations.BeforeTest; |
| import org.testng.annotations.DataProvider; |
| import org.testng.annotations.Test; |
| |
| public class TestVirtualTopologyGroupAssignment { |
| |
| private static final String GROUP_NAME = "test_virtual_group"; |
| private final List<String> _flattenExpected = Arrays.asList( |
| "1", "2", "3", |
| "4", "5", "6", |
| "7", "8", "9", |
| "a", "b", "c", "d"); |
| private Map<String, Set<String>> _zoneMapping = new HashMap<>(); |
| |
| @BeforeTest |
| public void prepare() { |
| _zoneMapping = new HashMap<>(); |
| _zoneMapping.put("c", Sets.newHashSet("9", "8", "7")); |
| _zoneMapping.put("a", Sets.newHashSet("2", "3", "1")); |
| _zoneMapping.put("z", Sets.newHashSet("b", "c", "d", "a")); |
| _zoneMapping.put("b", Sets.newHashSet("5", "4", "6")); |
| } |
| |
| @Test |
| public void testFlattenZoneMapping() { |
| Assert.assertEquals(HelixUtil.sortAndFlattenZoneMapping(_zoneMapping), _flattenExpected); |
| } |
| |
| @Test(dataProvider = "getMappingTests") |
| public void testAssignmentScheme(int numGroups, Map<String, Set<String>> expected, |
| VirtualGroupAssignmentAlgorithm algorithm) { |
| Assert.assertEquals(algorithm.computeAssignment(numGroups, GROUP_NAME, _zoneMapping), expected); |
| } |
| |
| @DataProvider |
| public Object[][] getMappingTests() { |
| Map<String, Set<String>> virtualMapping = new HashMap<>(); |
| VirtualGroupAssignmentAlgorithm algorithm = FifoVirtualGroupAssignmentAlgorithm.getInstance(); |
| virtualMapping.put(computeVirtualGroupId(0), Sets.newHashSet("1", "2", "3", "4", "5")); |
| virtualMapping.put(computeVirtualGroupId(1), Sets.newHashSet("6", "7", "8", "9")); |
| virtualMapping.put(computeVirtualGroupId(2), Sets.newHashSet("a", "b", "c", "d")); |
| Assert.assertEquals(algorithm.computeAssignment(3, GROUP_NAME, _zoneMapping), |
| virtualMapping); |
| Map<String, Set<String>> virtualMapping2 = new HashMap<>(); |
| virtualMapping2.put(computeVirtualGroupId(0), Sets.newHashSet("1", "2")); |
| virtualMapping2.put(computeVirtualGroupId(1), Sets.newHashSet("3", "4")); |
| virtualMapping2.put(computeVirtualGroupId(2), Sets.newHashSet("5", "6")); |
| virtualMapping2.put(computeVirtualGroupId(3), Sets.newHashSet("7", "8")); |
| virtualMapping2.put(computeVirtualGroupId(4), Sets.newHashSet("9", "a")); |
| virtualMapping2.put(computeVirtualGroupId(5), Sets.newHashSet("b")); |
| virtualMapping2.put(computeVirtualGroupId(6), Sets.newHashSet("c")); |
| virtualMapping2.put(computeVirtualGroupId(7), Sets.newHashSet("d")); |
| return new Object[][] { |
| {3, virtualMapping, algorithm}, |
| {8, virtualMapping2, algorithm} |
| }; |
| } |
| |
| private static String computeVirtualGroupId(int groupIndex) { |
| return GROUP_NAME + VirtualTopologyGroupConstants.GROUP_NAME_SPLITTER + groupIndex; |
| } |
| } |