1 /* |
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2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 import java.io.File; |
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25 import java.lang.module.Configuration; |
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26 import java.lang.module.ModuleFinder; |
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27 import java.lang.reflect.Layer; |
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28 import java.nio.file.Files; |
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29 import java.nio.file.Path; |
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30 import java.nio.file.Paths; |
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31 import java.util.ServiceLoader; |
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32 import java.util.Set; |
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33 import javax.script.ScriptEngineFactory; |
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34 |
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35 import static jdk.testlibrary.ProcessTools.executeTestJava; |
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36 |
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37 import org.testng.annotations.BeforeTest; |
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38 import org.testng.annotations.Test; |
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39 import static org.testng.Assert.*; |
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40 |
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41 /** |
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42 * @test |
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43 * @library /lib/testlibrary |
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44 * @modules java.scripting |
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45 * jdk.compiler |
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46 * @build ServicesTest CompilerUtils jdk.testlibrary.* |
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47 * @run testng ServicesTest |
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48 * @summary Tests ServiceLoader to locate service providers on the module path |
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49 * and class path. Also tests ServiceLoader with a custom Layer. |
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50 */ |
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51 |
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52 @Test |
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53 public class ServicesTest { |
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54 |
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55 private static final String TEST_SRC = System.getProperty("test.src"); |
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56 |
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57 private static final Path SRC_DIR = Paths.get(TEST_SRC, "src"); |
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58 private static final Path CLASSES_DIR = Paths.get("classes"); |
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59 private static final Path MODS_DIR = Paths.get("mods"); |
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60 |
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61 // modules to compile to the module path |
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62 private static final String MODULES[] = { "test", "bananascript" }; |
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63 |
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64 // directories of classes to compile to the class path |
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65 private static final String CLASSES[] = { "pearscript" }; |
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66 |
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67 // resources to copy to the class path |
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68 private static final String RESOURCES[] = { |
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69 "pearscript/META-INF/services/javax.script.ScriptEngineFactory" |
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70 }; |
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71 |
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72 |
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73 /** |
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74 * Compiles all modules and classes used by the test |
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75 */ |
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76 @BeforeTest |
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77 public void setup() throws Exception { |
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78 |
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79 // modules |
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80 for (String mn : MODULES ) { |
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81 Path src = SRC_DIR.resolve(mn); |
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82 Path mods = MODS_DIR.resolve(mn); |
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83 assertTrue(CompilerUtils.compile(src, mods)); |
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84 } |
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85 |
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86 // classes |
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87 for (String dir : CLASSES) { |
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88 Path src = SRC_DIR.resolve(dir); |
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89 assertTrue(CompilerUtils.compile(src, CLASSES_DIR)); |
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90 } |
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91 |
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92 // copy resources |
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93 for (String rn : RESOURCES) { |
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94 Path file = Paths.get(rn.replace('/', File.separatorChar)); |
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95 Path source = SRC_DIR.resolve(file); |
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96 |
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97 // drop directory to get a target of classes/META-INF/... |
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98 Path target = CLASSES_DIR.resolve(file.subpath(1, file.getNameCount())); |
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99 |
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100 Files.createDirectories(target.getParent()); |
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101 Files.copy(source, target); |
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102 } |
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103 |
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104 } |
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105 |
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106 |
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107 /** |
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108 * Run test with --module-path. |
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109 * |
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110 * BananaScriptEngine should be found. |
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111 */ |
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112 public void runWithModulePath() throws Exception { |
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113 int exitValue |
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114 = executeTestJava("--module-path", MODS_DIR.toString(), |
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115 "--add-modules", "bananascript", |
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116 "-m", "test/test.Main", |
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117 "BananaScriptEngine") |
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118 .outputTo(System.out) |
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119 .errorTo(System.out) |
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120 .getExitValue(); |
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121 |
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122 assertTrue(exitValue == 0); |
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123 } |
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124 |
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125 |
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126 /** |
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127 * Run test with --module-path and -classpath. |
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128 * |
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129 * Both BananaScriptEngine and PearScriptEngine should be found |
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130 */ |
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131 public void runWithModulePathAndClassPath() throws Exception { |
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132 int exitValue |
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133 = executeTestJava("--module-path", MODS_DIR.toString(), |
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134 "-cp", CLASSES_DIR.toString(), |
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135 "--add-modules", "bananascript", |
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136 "-m", "test/test.Main", |
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137 "BananaScriptEngine", "PearScriptEngine") |
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138 .outputTo(System.out) |
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139 .errorTo(System.out) |
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140 .getExitValue(); |
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141 |
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142 assertTrue(exitValue == 0); |
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143 } |
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144 |
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145 |
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146 /** |
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147 * Exercise ServiceLoader.load(Layer, Class). |
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148 */ |
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149 public void testWithCustomLayer() throws Exception { |
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150 |
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151 ServiceLoader<ScriptEngineFactory> sl; |
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152 |
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153 // BananaScriptEngine should not be in the boot Layer |
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154 sl = ServiceLoader.load(Layer.boot(), ScriptEngineFactory.class); |
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155 assertTrue(find("BananaScriptEngine", sl) == null); |
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156 |
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157 // create a custom Layer |
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158 ModuleFinder finder = ModuleFinder.of(MODS_DIR); |
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159 Layer bootLayer = Layer.boot(); |
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160 Configuration parent = bootLayer.configuration(); |
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161 Configuration cf |
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162 = parent.resolveRequiresAndUses(finder, ModuleFinder.of(), Set.of()); |
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163 ClassLoader scl = ClassLoader.getSystemClassLoader(); |
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164 Layer layer = bootLayer.defineModulesWithOneLoader(cf, scl); |
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165 |
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166 assertTrue(layer.findModule("bananascript").isPresent()); |
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167 ClassLoader loader = layer.findLoader("bananascript"); |
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168 |
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169 sl = ServiceLoader.load(layer, ScriptEngineFactory.class); |
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170 ScriptEngineFactory factory = find("BananaScriptEngine", sl); |
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171 assertTrue(factory != null); |
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172 assertEquals(factory.getClass().getModule().getName(), "bananascript"); |
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173 assertTrue(factory.getClass().getClassLoader() == loader); |
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174 |
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175 } |
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176 |
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177 /** |
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178 * Find the given scripting engine (by name) via the ScriptEngineFactory |
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179 * that ServiceLoader has found. |
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180 */ |
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181 static ScriptEngineFactory find(String name, |
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182 ServiceLoader<ScriptEngineFactory> sl) { |
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183 for (ScriptEngineFactory factory : sl) { |
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184 if (factory.getEngineName().equals(name)) |
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185 return factory; |
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186 } |
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187 return null; |
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188 } |
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189 |
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190 |
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191 } |
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192 |
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