| /** |
| * 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.metron.stellar.dsl.functions.resolver; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.Lists; |
| import org.apache.metron.stellar.dsl.Context; |
| import org.apache.metron.stellar.dsl.StellarFunction; |
| import org.junit.jupiter.api.BeforeAll; |
| import org.junit.jupiter.api.Test; |
| import org.reflections.util.FilterBuilder; |
| |
| import java.io.File; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Properties; |
| import java.util.Set; |
| |
| import static org.apache.metron.stellar.dsl.functions.resolver.ClasspathFunctionResolver.Config.*; |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| import static org.mockito.Mockito.mock; |
| |
| public class ClasspathFunctionResolverTest { |
| |
| private static List<String> expectedFunctions; |
| |
| @BeforeAll |
| public static void setup() { |
| |
| // search the entire classpath for functions - provides a baseline to test against |
| Properties config = new Properties(); |
| // use a permissive regex that should not filter anything |
| ClasspathFunctionResolver resolver = create(config); |
| |
| expectedFunctions = Lists.newArrayList(resolver.getFunctions()); |
| } |
| |
| /** |
| * Create a function resolver to test. |
| * @param config The configuration for Stellar. |
| */ |
| public static ClasspathFunctionResolver create(Properties config) { |
| ClasspathFunctionResolver resolver = new ClasspathFunctionResolver(); |
| |
| Context context = new Context.Builder() |
| .with(Context.Capabilities.STELLAR_CONFIG, () -> config) |
| .build(); |
| resolver.initialize(context); |
| |
| return resolver; |
| } |
| |
| @Test |
| public void testInclude() { |
| |
| // setup - include all `org.apache.metron.*` functions |
| Properties config = new Properties(); |
| config.put(STELLAR_SEARCH_INCLUDES_KEY.param(), "org.apache.metron.*"); |
| |
| // execute |
| ClasspathFunctionResolver resolver = create(config); |
| List<String> actual = Lists.newArrayList(resolver.getFunctions()); |
| |
| // validate - should have found all of the functions |
| assertEquals(expectedFunctions, actual); |
| } |
| |
| @Test |
| public void testWithMultipleIncludes() { |
| |
| // setup - include all of the common and management functions, which is most of them |
| Properties config = new Properties(); |
| config.put(STELLAR_SEARCH_INCLUDES_KEY.param(), "org.apache.metron.common.*, org.apache.metron.management.*"); |
| |
| // execute |
| ClasspathFunctionResolver resolver = create(config); |
| List<String> actual = Lists.newArrayList(resolver.getFunctions()); |
| |
| // validate - should have found all of the functions |
| assertTrue(actual.size() > 0); |
| assertTrue(actual.size() <= expectedFunctions.size()); |
| } |
| |
| @Test |
| public void testExclude() { |
| |
| // setup - exclude all `org.apache.metron.*` functions |
| Properties config = new Properties(); |
| config.put(STELLAR_SEARCH_EXCLUDES_KEY.param(), "org.apache.metron.*"); |
| |
| // use a permissive regex that should not filter anything |
| ClasspathFunctionResolver resolver = create(config); |
| List<String> actual = Lists.newArrayList(resolver.getFunctions()); |
| |
| // both should have resolved the same functions |
| assertEquals(0, actual.size()); |
| } |
| |
| @Test |
| public void testExternalLocal() { |
| File jar = new File("src/test/classpath-resources"); |
| assertTrue(jar.exists()); |
| Properties config = new Properties(); |
| config.put(STELLAR_VFS_PATHS.param(), jar.toURI() + "/.*.jar"); |
| |
| ClasspathFunctionResolver resolver = create(config); |
| HashSet<String> functions = new HashSet<>(Lists.newArrayList(resolver.getFunctions())); |
| assertTrue(functions.contains("NOW")); |
| } |
| |
| @Test |
| public void testInvalidStellarClass() { |
| StellarFunction goodFunc = mock(StellarFunction.class); |
| StellarFunction badFunc = mock(StellarFunction.class); |
| ClasspathFunctionResolver resolver = new ClasspathFunctionResolver() { |
| @Override |
| protected Iterable<Class<?>> getStellarClasses(ClassLoader cl) { |
| return ImmutableList.of(goodFunc.getClass(), badFunc.getClass()); |
| } |
| |
| @Override |
| protected boolean includeClass(Class<?> c, FilterBuilder filterBuilder) { |
| if(c != goodFunc.getClass()) { |
| throw new LinkageError("failed!"); |
| } |
| return true; |
| } |
| }; |
| Set<Class<? extends StellarFunction>> funcs = resolver.resolvables(); |
| assertEquals(1, funcs.size()); |
| assertEquals(goodFunc.getClass(), Iterables.getFirst(funcs, null)); |
| } |
| |
| } |