| /** |
| * 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.hdfs.protocol; |
| |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.SortedSet; |
| |
| import org.apache.hadoop.hdfs.protocol.LayoutVersion.Feature; |
| import org.apache.hadoop.hdfs.protocol.LayoutVersion.FeatureInfo; |
| import org.apache.hadoop.hdfs.protocol.LayoutVersion.LayoutFeature; |
| import org.apache.hadoop.hdfs.server.datanode.DataNodeLayoutVersion; |
| import org.apache.hadoop.hdfs.server.namenode.NameNodeLayoutVersion; |
| import org.junit.Test; |
| |
| /** |
| * Test for {@link LayoutVersion} |
| */ |
| public class TestLayoutVersion { |
| public static final LayoutFeature LAST_NON_RESERVED_COMMON_FEATURE; |
| public static final LayoutFeature LAST_COMMON_FEATURE; |
| static { |
| final Feature[] features = Feature.values(); |
| LAST_COMMON_FEATURE = features[features.length - 1]; |
| LAST_NON_RESERVED_COMMON_FEATURE = LayoutVersion.getLastNonReservedFeature(features); |
| } |
| |
| /** |
| * Tests to make sure a given layout version supports all the |
| * features from the ancestor |
| */ |
| @Test |
| public void testFeaturesFromAncestorSupported() { |
| for (LayoutFeature f : Feature.values()) { |
| validateFeatureList(f); |
| } |
| } |
| |
| /** |
| * Test to make sure 0.20.203 supports delegation token |
| */ |
| @Test |
| public void testRelease203() { |
| assertTrue(NameNodeLayoutVersion.supports(LayoutVersion.Feature.DELEGATION_TOKEN, |
| Feature.RESERVED_REL20_203.getInfo().getLayoutVersion())); |
| } |
| |
| /** |
| * Test to make sure 0.20.204 supports delegation token |
| */ |
| @Test |
| public void testRelease204() { |
| assertTrue(NameNodeLayoutVersion.supports(LayoutVersion.Feature.DELEGATION_TOKEN, |
| Feature.RESERVED_REL20_204.getInfo().getLayoutVersion())); |
| } |
| |
| /** |
| * Test to make sure release 1.2.0 support CONCAT |
| */ |
| @Test |
| public void testRelease1_2_0() { |
| assertTrue(NameNodeLayoutVersion.supports(LayoutVersion.Feature.CONCAT, |
| Feature.RESERVED_REL1_2_0.getInfo().getLayoutVersion())); |
| } |
| |
| /** |
| * Test to make sure NameNode.Feature support previous features |
| */ |
| @Test |
| public void testNameNodeFeature() { |
| final LayoutFeature first = NameNodeLayoutVersion.Feature.ROLLING_UPGRADE; |
| assertTrue(NameNodeLayoutVersion.supports(LAST_NON_RESERVED_COMMON_FEATURE, |
| first.getInfo().getLayoutVersion())); |
| assertEquals(LAST_COMMON_FEATURE.getInfo().getLayoutVersion() - 1, |
| first.getInfo().getLayoutVersion()); |
| } |
| |
| /** |
| * Test to make sure DataNode.Feature support previous features |
| */ |
| @Test |
| public void testDataNodeFeature() { |
| final LayoutFeature first = DataNodeLayoutVersion.Feature.FIRST_LAYOUT; |
| assertTrue(DataNodeLayoutVersion.supports(LAST_NON_RESERVED_COMMON_FEATURE, |
| first.getInfo().getLayoutVersion())); |
| assertEquals(LAST_COMMON_FEATURE.getInfo().getLayoutVersion() - 1, |
| first.getInfo().getLayoutVersion()); |
| } |
| |
| /** |
| * Given feature {@code f}, ensures the layout version of that feature |
| * supports all the features supported by it's ancestor. |
| */ |
| private void validateFeatureList(LayoutFeature f) { |
| final FeatureInfo info = f.getInfo(); |
| int lv = info.getLayoutVersion(); |
| int ancestorLV = info.getAncestorLayoutVersion(); |
| SortedSet<LayoutFeature> ancestorSet = NameNodeLayoutVersion.getFeatures(ancestorLV); |
| assertNotNull(ancestorSet); |
| for (LayoutFeature feature : ancestorSet) { |
| assertTrue("LV " + lv + " does nto support " + feature |
| + " supported by the ancestor LV " + info.getAncestorLayoutVersion(), |
| NameNodeLayoutVersion.supports(feature, lv)); |
| } |
| } |
| } |