1 /* 2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.io.File; 25 import java.lang.module.Configuration; 26 import java.lang.module.ModuleFinder; 27 import java.lang.reflect.Layer; 28 import java.nio.file.Files; 29 import java.nio.file.Path; 30 import java.nio.file.Paths; 31 import java.util.ServiceLoader; 32 import java.util.Set; 33 import javax.script.ScriptEngineFactory; 34 35 import static jdk.testlibrary.ProcessTools.executeTestJava; 36 37 import org.testng.annotations.BeforeTest; 38 import org.testng.annotations.Test; 39 import static org.testng.Assert.*; 40 41 /** 42 * @test 43 * @library /lib/testlibrary 44 * @modules java.scripting 45 jdk.compiler 46 * @build ServicesTest CompilerUtils jdk.testlibrary.* 47 * @run testng ServicesTest 48 * @summary Tests ServiceLoader to locate service providers on the module path 49 * and class path. Also tests ServiceLoader with a custom Layer. 50 */ 51 52 @Test 53 public class ServicesTest { 54 55 private static final String TEST_SRC = System.getProperty("test.src"); 56 57 private static final Path SRC_DIR = Paths.get(TEST_SRC, "src"); 58 private static final Path CLASSES_DIR = Paths.get("classes"); 59 private static final Path MODS_DIR = Paths.get("mods"); 60 61 // modules to compile to the module path 62 private static final String MODULES[] = { "test", "bananascript" }; 63 64 // directories of classes to compile to the class path 65 private static final String CLASSES[] = { "pearscript" }; 66 67 // resources to copy to the class path 68 private static final String RESOURCES[] = { 69 "pearscript/META-INF/services/javax.script.ScriptEngineFactory" 70 }; 71 72 73 /** 74 * Compiles all modules and classes used by the test 75 */ 76 @BeforeTest 77 public void setup() throws Exception { 78 79 // modules 80 for (String mn : MODULES ) { 81 Path src = SRC_DIR.resolve(mn); 82 Path mods = MODS_DIR.resolve(mn); 83 assertTrue(CompilerUtils.compile(src, mods)); 84 } 85 86 // classes 87 for (String dir : CLASSES) { 88 Path src = SRC_DIR.resolve(dir); 89 assertTrue(CompilerUtils.compile(src, CLASSES_DIR)); 90 } 91 92 // copy resources 93 for (String rn : RESOURCES) { 94 Path file = Paths.get(rn.replace('/', File.separatorChar)); 95 Path source = SRC_DIR.resolve(file); 96 97 // drop directory to get a target of classes/META-INF/... 98 Path target = CLASSES_DIR.resolve(file.subpath(1, file.getNameCount())); 99 100 Files.createDirectories(target.getParent()); 101 Files.copy(source, target); 102 } 103 104 } 105 106 107 /** 108 * Run test with -modulepath. 109 * 110 * BananaScriptEngine should be found. 111 */ 112 public void runWithModulePath() throws Exception { 113 int exitValue 114 = executeTestJava("-mp", MODS_DIR.toString(), 115 "-m", "test/test.Main", 116 "BananaScriptEngine") 117 .outputTo(System.out) 118 .errorTo(System.out) 119 .getExitValue(); 120 121 assertTrue(exitValue == 0); 122 } 123 124 125 /** 126 * Run test with -modulepath and -classpath. 127 * 128 * Both BananaScriptEngine and PearScriptEngine should be found 129 */ 130 public void runWithModulePathAndClassPath() throws Exception { 131 int exitValue 132 = executeTestJava("-mp", MODS_DIR.toString(), 133 "-cp", CLASSES_DIR.toString(), 134 "-m", "test/test.Main", 135 "BananaScriptEngine", "PearScriptEngine") 136 .outputTo(System.out) 137 .errorTo(System.out) 138 .getExitValue(); 139 140 assertTrue(exitValue == 0); 141 } 142 143 144 /** 145 * Exercise ServiceLoader.load(Layer, Class). 146 */ 147 public void testWithCustomLayer() throws Exception { 148 149 ServiceLoader<ScriptEngineFactory> sl; 150 151 // BananaScriptEngine should not be in the boot Layer 152 sl = ServiceLoader.load(Layer.boot(), ScriptEngineFactory.class); 153 assertTrue(find("BananaScriptEngine", sl) == null); 154 155 // create a custom Layer 156 ModuleFinder finder = ModuleFinder.of(MODS_DIR); 157 Layer bootLayer = Layer.boot(); 158 Configuration parent = bootLayer.configuration(); 159 Configuration cf 160 = parent.resolveRequiresAndUses(finder, ModuleFinder.of(), Set.of()); 161 ClassLoader scl = ClassLoader.getSystemClassLoader(); 162 Layer layer = bootLayer.defineModulesWithOneLoader(cf, scl); 163 164 assertTrue(layer.findModule("bananascript").isPresent()); 165 ClassLoader loader = layer.findLoader("bananascript"); 166 167 sl = ServiceLoader.load(layer, ScriptEngineFactory.class); 168 ScriptEngineFactory factory = find("BananaScriptEngine", sl); 169 assertTrue(factory != null); 170 assertEquals(factory.getClass().getModule().getName(), "bananascript"); 171 assertTrue(factory.getClass().getClassLoader() == loader); 172 173 } 174 175 /** 176 * Find the given scripting engine (by name) via the ScriptEngineFactory 177 * that ServiceLoader has found. 178 */ 179 static ScriptEngineFactory find(String name, 180 ServiceLoader<ScriptEngineFactory> sl) { 181 for (ScriptEngineFactory factory : sl) { 182 if (factory.getEngineName().equals(name)) 183 return factory; 184 } 185 return null; 186 } 187 188 189 } 190