| /* |
| * 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 |
| * |
| * https://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.util; |
| |
| import org.apache.tools.ant.AntClassLoader; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.types.Path; |
| |
| /** |
| * Specialized classloader for tasks that need finer grained control |
| * over which classes are to be loaded via Ant's classloader and which |
| * should not even if they are available. |
| */ |
| public final class SplitClassLoader extends AntClassLoader { |
| |
| private final String[] splitClasses; |
| |
| /** |
| * @param parent ClassLoader |
| * @param path Path |
| * @param project Project |
| * @param splitClasses classes contained herein will not be loaded |
| * via Ant's classloader |
| */ |
| public SplitClassLoader(ClassLoader parent, Path path, Project project, |
| String[] splitClasses) { |
| super(parent, project, path, true); |
| this.splitClasses = splitClasses; |
| } |
| |
| // forceLoadClass is not convenient here since it would not |
| // properly deal with inner classes of these classes. |
| @Override |
| protected synchronized Class<?> loadClass(String classname, boolean resolve) |
| throws ClassNotFoundException { |
| Class<?> theClass = findLoadedClass(classname); |
| if (theClass != null) { |
| return theClass; |
| } |
| if (isSplit(classname)) { |
| theClass = findClass(classname); |
| if (resolve) { |
| resolveClass(theClass); |
| } |
| return theClass; |
| } |
| return super.loadClass(classname, resolve); |
| } |
| |
| private boolean isSplit(String classname) { |
| String simplename = classname.substring(classname.lastIndexOf('.') + 1); |
| for (String splitClass : splitClasses) { |
| if (simplename.equals(splitClass) |
| || simplename.startsWith(splitClass + '$')) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } |