| /* |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hdds.fs; |
| |
| import java.io.File; |
| |
| import org.apache.hadoop.hdds.conf.ConfigurationSource; |
| import org.apache.hadoop.hdds.conf.OzoneConfiguration; |
| import org.apache.hadoop.test.GenericTestUtils.LogCapturer; |
| |
| import static org.apache.hadoop.hdds.fs.SpaceUsageCheckFactory.Conf.configKeyForClassName; |
| import org.junit.Before; |
| import org.junit.Test; |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertNotNull; |
| import static org.junit.jupiter.api.Assertions.assertSame; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Tests for {@link SpaceUsageCheckFactory}. |
| */ |
| public class TestSpaceUsageFactory { |
| |
| private LogCapturer capturer; |
| |
| /** |
| * Verifies that {@link SpaceUsageCheckFactory#create(ConfigurationSource)} |
| * creates |
| * the correct implementation if configured. This should be called from each |
| * specific implementation's test class. |
| * @return the instance created, so that further checks can done, if needed |
| */ |
| protected static <T extends SpaceUsageCheckFactory> T testCreateViaConfig( |
| Class<T> factoryClass) { |
| |
| OzoneConfiguration conf = configFor(factoryClass); |
| |
| SpaceUsageCheckFactory factory = SpaceUsageCheckFactory.create(conf); |
| |
| assertSame(factoryClass, factory.getClass()); |
| |
| return factoryClass.cast(factory); |
| } |
| |
| @Before |
| public void setUp() { |
| capturer = LogCapturer.captureLogs( |
| LoggerFactory.getLogger(SpaceUsageCheckFactory.class)); |
| } |
| |
| @Test |
| public void configuresFactoryInstance() { |
| SpyFactory factory = testCreateViaConfig(SpyFactory.class); |
| |
| assertNotNull(factory.getConf()); |
| } |
| |
| @Test |
| public void returnsDefaultFactoryForMissingNoArgs() { |
| testDefaultFactoryForBrokenImplementation(MissingNoArgsConstructor.class); |
| } |
| |
| @Test |
| public void returnsDefaultFactoryForPrivateConstructor() { |
| testDefaultFactoryForBrokenImplementation(PrivateConstructor.class); |
| } |
| |
| @Test |
| public void returnsDefaultFactoryForMissingConfig() { |
| testDefaultFactoryForWrongConfig(""); |
| } |
| |
| @Test |
| public void returnsDefaultFactoryForUnknownClass() { |
| testDefaultFactoryForWrongConfig("no.such.class"); |
| } |
| |
| @Test |
| public void returnsDefaultFactoryForClassThatDoesNotImplementInterface() { |
| testDefaultFactoryForWrongConfig("java.lang.String"); |
| } |
| |
| private void assertNoLog() { |
| assertEquals("", capturer.getOutput()); |
| } |
| |
| private void assertLogged(String substring) { |
| String output = capturer.getOutput(); |
| assertTrue(output.contains(substring), () -> "Expected " + substring + " " + |
| "in log output, but only got: " + output); |
| } |
| |
| private static <T extends SpaceUsageCheckFactory> OzoneConfiguration |
| configFor(Class<T> factoryClass) { |
| |
| OzoneConfiguration conf = new OzoneConfiguration(); |
| conf.setClass(configKeyForClassName(), |
| factoryClass, SpaceUsageCheckFactory.class); |
| |
| return conf; |
| } |
| |
| private static void testDefaultFactoryForBrokenImplementation( |
| Class<? extends SpaceUsageCheckFactory> brokenImplementationClass) { |
| OzoneConfiguration conf = configFor(brokenImplementationClass); |
| assertCreatesDefaultImplementation(conf); |
| } |
| |
| private void testDefaultFactoryForWrongConfig(String value) { |
| OzoneConfiguration conf = new OzoneConfiguration(); |
| conf.set(configKeyForClassName(), value); |
| |
| assertCreatesDefaultImplementation(conf); |
| |
| if (value == null || value.isEmpty()) { |
| assertNoLog(); |
| } else { |
| assertLogged(value); |
| } |
| } |
| |
| private static void assertCreatesDefaultImplementation( |
| OzoneConfiguration conf) { |
| // given |
| // conf |
| |
| // when |
| SpaceUsageCheckFactory factory = SpaceUsageCheckFactory.create(conf); |
| |
| // then |
| assertSame(SpaceUsageCheckFactory.defaultImplementation().getClass(), |
| factory.getClass()); |
| } |
| |
| /** |
| * Base class for broken {@code SpaceUsageCheckFactory} implementations |
| * (for test). |
| */ |
| protected static class BrokenFactoryImpl implements SpaceUsageCheckFactory { |
| @Override |
| public SpaceUsageCheckParams paramsFor(File dir) { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| /** |
| * This one has no no-args constructor. |
| */ |
| public static final class MissingNoArgsConstructor extends BrokenFactoryImpl { |
| public MissingNoArgsConstructor(String ignored) { } |
| } |
| |
| /** |
| * This one has a private constructor. |
| */ |
| public static final class PrivateConstructor extends BrokenFactoryImpl { |
| private PrivateConstructor() { } |
| } |
| |
| /** |
| * Spy factory to verify |
| * {@link SpaceUsageCheckFactory#create(ConfigurationSource)} |
| * properly configures it. |
| */ |
| public static final class SpyFactory implements SpaceUsageCheckFactory { |
| |
| private ConfigurationSource conf; |
| |
| @Override |
| public SpaceUsageCheckFactory setConfiguration(ConfigurationSource config) { |
| this.conf = config; |
| return this; |
| } |
| |
| @Override |
| public SpaceUsageCheckParams paramsFor(File dir) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public ConfigurationSource getConf() { |
| return conf; |
| } |
| } |
| |
| } |