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- /*
- * Javassist, a Java-bytecode translator toolkit.
- * Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. Alternatively, the contents of this file may be used under
- * the terms of the GNU Lesser General Public License Version 2.1 or later,
- * or the Apache License Version 2.0.
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- */
-
- package javassist;
-
- import java.io.InputStream;
- import java.net.URL;
-
- /**
- * A search-path for obtaining a class file
- * by <code>getResourceAsStream()</code> in <code>java.lang.Class</code>.
- *
- * <p>Try adding a <code>ClassClassPath</code> when a program is running
- * with a user-defined class loader and any class files are not found with
- * the default <code>ClassPool</code>. For example,
- *
- * <pre>
- * ClassPool cp = ClassPool.getDefault();
- * cp.insertClassPath(new ClassClassPath(this.getClass()));
- * </pre>
- *
- * This code snippet permanently adds a <code>ClassClassPath</code>
- * to the default <code>ClassPool</code>. Note that the default
- * <code>ClassPool</code> is a singleton. The added
- * <code>ClassClassPath</code> uses a class object representing
- * the class including the code snippet above.
- *
- * <p>Class files in a named module are private to that module.
- * This method cannot obtain class files in named modules.
- * </p>
- *
- * @see ClassPool#insertClassPath(ClassPath)
- * @see ClassPool#appendClassPath(ClassPath)
- * @see LoaderClassPath
- */
- public class ClassClassPath implements ClassPath {
- private Class<?> thisClass;
-
- /** Creates a search path.
- *
- * @param c the <code>Class</code> object used to obtain a class
- * file. <code>getResourceAsStream()</code> is called on
- * this object.
- */
- public ClassClassPath(Class<?> c) {
- thisClass = c;
- }
-
- ClassClassPath() {
- /* The value of thisClass was this.getClass() in early versions:
- *
- * thisClass = this.getClass();
- *
- * However, this made openClassfile() not search all the system
- * class paths if javassist.jar is put in jre/lib/ext/
- * (with JDK1.4).
- */
- this(java.lang.Object.class);
- }
-
- /**
- * Obtains a class file by <code>getResourceAsStream()</code>.
- */
- @Override
- public InputStream openClassfile(String classname) throws NotFoundException {
- String filename = '/' + classname.replace('.', '/') + ".class";
- return thisClass.getResourceAsStream(filename);
- }
-
- /**
- * Obtains the URL of the specified class file.
- *
- * @return null if the class file could not be found.
- */
- @Override
- public URL find(String classname) {
- String filename = '/' + classname.replace('.', '/') + ".class";
- return thisClass.getResource(filename);
- }
-
- @Override
- public String toString() {
- return thisClass.getName() + ".class";
- }
- }
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