| /* |
| * 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.drill.exec.expr.fn; |
| |
| import org.apache.drill.shaded.guava.com.google.common.collect.Lists; |
| import org.apache.drill.categories.SqlFunctionTest; |
| import org.apache.drill.exec.udf.dynamic.JarBuilder; |
| import org.apache.drill.exec.util.JarUtil; |
| import org.codehaus.janino.Java.CompilationUnit; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.TemporaryFolder; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.nio.file.Paths; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| @Category(SqlFunctionTest.class) |
| public class FunctionInitializerTest { |
| |
| @ClassRule |
| public static final TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| private static final String CLASS_NAME = "org.apache.drill.udf.dynamic.CustomLowerFunction"; |
| private static URLClassLoader classLoader; |
| |
| @BeforeClass |
| public static void init() throws Exception { |
| File buildDirectory = temporaryFolder.getRoot(); |
| String binaryName = "drill-custom-lower"; |
| |
| JarBuilder jarBuilder = new JarBuilder("src/test/resources/drill-udf"); |
| String binaryJar = jarBuilder.build(binaryName, buildDirectory.getAbsolutePath(), "**/CustomLowerFunction.java", null); |
| |
| URL[] urls = { |
| Paths.get(buildDirectory.getPath(), binaryJar).toUri().toURL(), |
| Paths.get(buildDirectory.getPath(), JarUtil.getSourceName(binaryJar)).toUri().toURL()}; |
| classLoader = new URLClassLoader(urls); |
| } |
| |
| @Test |
| public void testGetImports() { |
| FunctionInitializer functionInitializer = new FunctionInitializer(CLASS_NAME, classLoader); |
| List<String> actualImports = functionInitializer.getImports(); |
| |
| List<String> expectedImports = Lists.newArrayList( |
| "import io.netty.buffer.DrillBuf;", |
| "import org.apache.drill.exec.expr.DrillSimpleFunc;", |
| "import org.apache.drill.exec.expr.annotations.FunctionTemplate;", |
| "import org.apache.drill.exec.expr.annotations.Output;", |
| "import org.apache.drill.exec.expr.annotations.Param;", |
| "import org.apache.drill.exec.expr.holders.VarCharHolder;", |
| "import javax.inject.Inject;" |
| ); |
| |
| assertEquals("List of imports should match", expectedImports, actualImports); |
| } |
| |
| @Test |
| public void testGetMethod() { |
| FunctionInitializer functionInitializer = new FunctionInitializer(CLASS_NAME, classLoader); |
| String actualMethod = functionInitializer.getMethod("eval"); |
| assertTrue("Method body should match", actualMethod.contains("CustomLowerFunction_eval:")); |
| } |
| |
| @Test |
| public void testConcurrentFunctionBodyLoad() throws Exception { |
| final AtomicInteger counter = new AtomicInteger(); |
| final FunctionInitializer functionInitializer = new FunctionInitializer(CLASS_NAME, classLoader) { |
| @Override |
| CompilationUnit convertToCompilationUnit(Class<?> clazz) throws IOException { |
| counter.incrementAndGet(); |
| return super.convertToCompilationUnit(clazz); |
| } |
| }; |
| |
| int threadsNumber = 5; |
| ExecutorService executor = Executors.newFixedThreadPool(threadsNumber); |
| |
| try { |
| List<Future<String>> results = executor.invokeAll(Collections.nCopies(threadsNumber, |
| (Callable<String>) () -> functionInitializer.getMethod("eval"))); |
| |
| final Set<String> uniqueResults = new HashSet<>(); |
| for (Future<String> result : results) { |
| uniqueResults.add(result.get()); |
| } |
| |
| assertEquals("All threads should have received the same result", 1, uniqueResults.size()); |
| assertEquals("Number of function body loads should match", 1, counter.intValue()); |
| |
| } finally { |
| executor.shutdownNow(); |
| } |
| } |
| } |