| /* |
| * 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.native2ascii; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.ProjectComponent; |
| import org.apache.tools.ant.util.ClasspathUtils; |
| import org.apache.tools.ant.util.JavaEnvUtils; |
| |
| /** |
| * Creates the Native2AsciiAdapter based on the user choice and |
| * potentially the VM vendor. |
| * |
| * @since Ant 1.6.3 |
| */ |
| // CheckStyle:HideUtilityClassConstructorCheck OFF (bc) |
| public class Native2AsciiAdapterFactory { |
| |
| /** |
| * 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 KaffeNative2Ascii.IMPLEMENTATION_NAME; |
| } |
| return SunNative2Ascii.IMPLEMENTATION_NAME; |
| } |
| |
| /** |
| * Creates the Native2AsciiAdapter 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 was a problem. |
| */ |
| public static Native2AsciiAdapter getAdapter(String choice, |
| ProjectComponent log) |
| throws BuildException { |
| if ((JavaEnvUtils.isKaffe() && choice == null) |
| || KaffeNative2Ascii.IMPLEMENTATION_NAME.equals(choice)) { |
| return new KaffeNative2Ascii(); |
| } else if (SunNative2Ascii.IMPLEMENTATION_NAME.equals(choice)) { |
| return new SunNative2Ascii(); |
| } else if (choice != null) { |
| return resolveClassName(choice); |
| } |
| |
| // This default has been good enough until Ant 1.6.3, so stick |
| // with it |
| return new SunNative2Ascii(); |
| } |
| |
| /** |
| * Tries to resolve the given classname into a native2ascii adapter. |
| * Throws a fit if it can't. |
| * |
| * @param className The fully qualified classname to be created. |
| * @throws BuildException This is the fit that is thrown if className |
| * isn't an instance of Native2AsciiAdapter. |
| */ |
| private static Native2AsciiAdapter resolveClassName(String className) |
| throws BuildException { |
| return (Native2AsciiAdapter) ClasspathUtils.newInstance(className, |
| Native2AsciiAdapterFactory.class.getClassLoader(), |
| Native2AsciiAdapter.class); |
| } |
| } |