| /* |
| * 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.flink.configuration; |
| |
| import org.junit.Test; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.util.Set; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Tests for the {@link DelegatingConfiguration}. |
| */ |
| public class DelegatingConfigurationTest { |
| |
| @Test |
| public void testIfDelegatesImplementAllMethods() throws IllegalAccessException, IllegalArgumentException, InvocationTargetException { |
| |
| // For each method in the Configuration class... |
| Method[] confMethods = Configuration.class.getDeclaredMethods(); |
| Method[] delegateMethods = DelegatingConfiguration.class.getDeclaredMethods(); |
| |
| for (Method configurationMethod : confMethods) { |
| if (!Modifier.isPublic(configurationMethod.getModifiers())) { |
| continue; |
| } |
| |
| boolean hasMethod = false; |
| |
| // Find matching method in wrapper class and call it |
| lookForWrapper: for (Method wrapperMethod : delegateMethods) { |
| if (configurationMethod.getName().equals(wrapperMethod.getName())) { |
| |
| // Get parameters for method |
| Class<?>[] wrapperMethodParams = wrapperMethod.getParameterTypes(); |
| Class<?>[] configMethodParams = configurationMethod.getParameterTypes(); |
| if (wrapperMethodParams.length != configMethodParams.length) { |
| continue; |
| } |
| |
| for (int i = 0; i < wrapperMethodParams.length; i++) { |
| if (wrapperMethodParams[i] != configMethodParams[i]) { |
| continue lookForWrapper; |
| } |
| } |
| hasMethod = true; |
| break; |
| } |
| } |
| |
| assertTrue("Configuration method '" + configurationMethod.getName() + |
| "' has not been wrapped correctly in DelegatingConfiguration wrapper", hasMethod); |
| } |
| } |
| |
| @Test |
| public void testDelegationConfigurationWithNullPrefix() { |
| Configuration backingConf = new Configuration(); |
| backingConf.setValueInternal("test-key", "value"); |
| |
| DelegatingConfiguration configuration = new DelegatingConfiguration( |
| backingConf, null); |
| Set<String> keySet = configuration.keySet(); |
| |
| assertEquals(keySet, backingConf.keySet()); |
| |
| } |
| |
| @Test |
| public void testDelegationConfigurationWithPrefix() { |
| String prefix = "pref-"; |
| String expectedKey = "key"; |
| |
| /* |
| * Key matches the prefix |
| */ |
| Configuration backingConf = new Configuration(); |
| backingConf.setValueInternal(prefix + expectedKey, "value"); |
| |
| DelegatingConfiguration configuration = new DelegatingConfiguration(backingConf, prefix); |
| Set<String> keySet = configuration.keySet(); |
| |
| assertEquals(keySet.size(), 1); |
| assertEquals(keySet.iterator().next(), expectedKey); |
| |
| /* |
| * Key does not match the prefix |
| */ |
| backingConf = new Configuration(); |
| backingConf.setValueInternal("test-key", "value"); |
| |
| configuration = new DelegatingConfiguration(backingConf, prefix); |
| keySet = configuration.keySet(); |
| |
| assertTrue(keySet.isEmpty()); |
| } |
| } |