| /* |
| * 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.myfaces.extensions.scripting.core.common.util; |
| |
| //TODO this needs to be moved into the JSF 2.0 and 1.2 packages |
| //reason due to the changes caused by the shade plugin it the ClassLoader |
| //Extensions is in shared_impl in 1.2 and in shared in 2.x |
| |
| import javax.faces.FacesException; |
| import java.io.File; |
| import java.security.AccessController; |
| import java.security.PrivilegedActionException; |
| import java.security.PrivilegedExceptionAction; |
| |
| /** |
| * A generic utils class dealing with different aspects |
| * (naming and reflection) of java classes |
| * |
| * @author werpu |
| * <p> </p> |
| */ |
| public class ClassUtils |
| { |
| |
| public static Class forName(String name) |
| { |
| try |
| { |
| return Class.forName(name); |
| } |
| catch (ClassNotFoundException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| public static boolean isPresent(String clazz) |
| { |
| try |
| { |
| getContextClassLoader().loadClass(clazz); |
| } |
| catch (ClassNotFoundException e) |
| { |
| return false; |
| } |
| return true; |
| } |
| |
| public static File classNameToFile(String classPath, String className) |
| { |
| String classFileName = classNameToRelativeFileName(className); |
| return new File(classPath + File.separator + classFileName); |
| } |
| |
| private static String classNameToRelativeFileName(String className) |
| { |
| String separator = FileUtils.getFileSeparatorForRegex(); |
| |
| return className.replaceAll("\\.", separator) + ".class"; |
| } |
| |
| public static String relativeFileToClassName(String relativeFileName) |
| { |
| String className = relativeFileName.replaceAll("\\\\", ".").replaceAll("\\/", "."); |
| className = className.substring(0, className.lastIndexOf(".")); |
| if(className.startsWith(".")) { |
| className = className.substring(1); |
| } |
| return className; |
| } |
| |
| public static void addClassLoadingExtension(Object extension, boolean top) |
| { |
| try |
| { |
| ReflectUtil.executeStaticMethod(forName("org.apache.myfaces.shared_impl.util.ClassUtils"), |
| "addClassLoadingExtension"); |
| } |
| catch (Exception e) |
| { |
| ReflectUtil.executeStaticMethod(forName("org.apache.myfaces.shared.util.ClassUtils"), |
| "addClassLoadingExtension", extension, top); |
| } |
| |
| //ClassUtils.addClassLoadingExtension(extension, top); |
| } |
| |
| public static ClassLoader getContextClassLoader() |
| { |
| if (System.getSecurityManager() != null) |
| { |
| try |
| { |
| ClassLoader cl = AccessController.doPrivileged(new PrivilegedExceptionAction<ClassLoader>() |
| { |
| public ClassLoader run() throws PrivilegedActionException |
| { |
| return Thread.currentThread().getContextClassLoader(); |
| } |
| }); |
| return cl; |
| } |
| catch (PrivilegedActionException pae) |
| { |
| throw new RuntimeException(pae); |
| } |
| } |
| else |
| { |
| return Thread.currentThread().getContextClassLoader(); |
| } |
| } |
| |
| } |