| /* |
| * 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.tools.ant.taskdefs.optional.javah; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.ProjectComponent; |
| import org.apache.tools.ant.types.Path; |
| import org.apache.tools.ant.util.ClasspathUtils; |
| import org.apache.tools.ant.util.JavaEnvUtils; |
| |
| /** |
| * Creates the JavahAdapter based on the user choice and |
| * potentially the VM vendor. |
| * |
| * @since Ant 1.6.3 |
| */ |
| // CheckStyle:HideUtilityClassConstructorCheck OFF (bc) |
| public class JavahAdapterFactory { |
| |
| /** |
| * Determines the default choice of adapter based on the VM |
| * vendor. |
| * |
| * @return the default choice of adapter based on the VM |
| * vendor |
| */ |
| public static String getDefault() { |
| if (JavaEnvUtils.isKaffe()) { |
| return Kaffeh.IMPLEMENTATION_NAME; |
| } else if (JavaEnvUtils.isGij()) { |
| return Gcjh.IMPLEMENTATION_NAME; |
| } else if (JavaEnvUtils.isAtLeastJavaVersion(JavaEnvUtils.JAVA_9)) { |
| return ForkingJavah.IMPLEMENTATION_NAME; |
| } |
| return SunJavah.IMPLEMENTATION_NAME; |
| } |
| |
| /** |
| * Creates the JavahAdapter based on the user choice and |
| * potentially the VM vendor. |
| * |
| * @param choice the user choice (if any). |
| * @param log a ProjectComponent instance used to access Ant's |
| * logging system. |
| * @return The adapter to use. |
| * @throws BuildException if there is an error. |
| */ |
| public static JavahAdapter getAdapter(String choice, |
| ProjectComponent log) |
| throws BuildException { |
| return getAdapter(choice, log, null); |
| } |
| |
| /** |
| * Creates the JavahAdapter based on the user choice and |
| * potentially the VM vendor. |
| * |
| * @param choice the user choice (if any). |
| * @param log a ProjectComponent instance used to access Ant's |
| * logging system. |
| * @param classpath the classpath to use when looking up an |
| * adapter class |
| * @return The adapter to use. |
| * @throws BuildException if there is an error. |
| * @since Ant 1.8.0 |
| */ |
| public static JavahAdapter getAdapter(String choice, |
| ProjectComponent log, |
| Path classpath) |
| throws BuildException { |
| if ((JavaEnvUtils.isKaffe() && choice == null) |
| || Kaffeh.IMPLEMENTATION_NAME.equals(choice)) { |
| return new Kaffeh(); |
| } else if ((JavaEnvUtils.isGij() && choice == null) |
| || Gcjh.IMPLEMENTATION_NAME.equals(choice)) { |
| return new Gcjh(); |
| } else if (JavaEnvUtils.isAtLeastJavaVersion("10") && |
| (choice == null || ForkingJavah.IMPLEMENTATION_NAME.equals(choice))) { |
| throw new BuildException("javah does not exist under Java 10 and higher," |
| + " use the javac task with nativeHeaderDir instead"); |
| } else if ((JavaEnvUtils.isAtLeastJavaVersion(JavaEnvUtils.JAVA_9) |
| && choice == null) |
| || ForkingJavah.IMPLEMENTATION_NAME.equals(choice)) { |
| return new ForkingJavah(); |
| } else if (SunJavah.IMPLEMENTATION_NAME.equals(choice)) { |
| return new SunJavah(); |
| } else if (choice != null) { |
| return resolveClassName(choice, |
| // Memory leak in line below |
| log.getProject() |
| .createClassLoader(classpath)); |
| } |
| |
| // This default has been good enough until Ant 1.6.3, so stick |
| // with it |
| return new SunJavah(); |
| } |
| |
| /** |
| * Tries to resolve the given classname into a javah adapter. |
| * Throws a fit if it can't. |
| * |
| * @param className The fully qualified classname to be created. |
| * @param loader the classloader to use |
| * @throws BuildException This is the fit that is thrown if className |
| * isn't an instance of JavahAdapter. |
| */ |
| private static JavahAdapter resolveClassName(String className, |
| ClassLoader loader) |
| throws BuildException { |
| return (JavahAdapter) ClasspathUtils.newInstance(className, |
| loader != null ? loader : |
| JavahAdapterFactory.class.getClassLoader(), JavahAdapter.class); |
| } |
| } |