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- package org.aspectj.apache.bcel;
-
- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (https://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" and
- * "Apache BCEL" must not be used to endorse or promote products
- * derived from this software without prior written permission. For
- * written permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * "Apache BCEL", nor may "Apache" appear in their name, without
- * prior written permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <https://www.apache.org/>.
- */
-
- import java.io.IOException;
-
- import org.aspectj.apache.bcel.classfile.JavaClass;
- import org.aspectj.apache.bcel.util.ClassPath;
- import org.aspectj.apache.bcel.util.SyntheticRepository;
-
- /**
- * The repository maintains informations about class interdependencies, e.g., whether a class is a sub-class of another. Delegates
- * actual class loading to SyntheticRepository with current class path by default.
- *
- * @see org.aspectj.apache.bcel.util.Repository
- * @see org.aspectj.apache.bcel.util.SyntheticRepository
- *
- * @version $Id: Repository.java,v 1.6 2009/09/09 22:18:20 aclement Exp $
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
- */
- public abstract class Repository {
- private static org.aspectj.apache.bcel.util.Repository _repository = null;
-
- /**
- * @return currently used repository instance
- */
- public static org.aspectj.apache.bcel.util.Repository getRepository() {
- if (_repository == null) {
- _repository = SyntheticRepository.getInstance();
- }
- return _repository;
- }
-
- /**
- * Set repository instance to be used for class loading
- */
- public static void setRepository(org.aspectj.apache.bcel.util.Repository rep) {
- _repository = rep;
- }
-
- /**
- * Lookup class somewhere found on your CLASSPATH, or whereever the repository instance looks for it.
- *
- * @return class object for given fully qualified class name, or null if the class could not be found or parsed correctly
- */
- public static JavaClass lookupClass(String class_name) {
- try {
- JavaClass clazz = getRepository().findClass(class_name);
-
- if (clazz != null) {
- return clazz;
- }
-
- return getRepository().loadClass(class_name);
- } catch (ClassNotFoundException ex) {
- return null;
- }
- }
-
- // /**
- // * Try to find class source via getResourceAsStream().
- // *
- // * @see Class
- // * @return JavaClass object for given runtime class
- // */
- // public static JavaClass lookupClass(Class clazz) {
- // try {
- // return getRepository().loadClass(clazz);
- // } catch (ClassNotFoundException ex) {
- // return null;
- // }
- // }
-
- /**
- * @return class file object for given Java class.
- */
- public static ClassPath.ClassFile lookupClassFile(String class_name) {
- try {
- return ClassPath.getSystemClassPath().getClassFile(class_name);
- } catch (IOException e) {
- return null;
- }
- }
-
- /**
- * Clear the repository.
- */
- public static void clearCache() {
- getRepository().clear();
- }
-
- /**
- * Add clazz to repository if there isn't an equally named class already in there.
- *
- * @return old entry in repository
- */
- public static JavaClass addClass(JavaClass clazz) {
- JavaClass old = getRepository().findClass(clazz.getClassName());
- getRepository().storeClass(clazz);
- return old;
- }
-
- /**
- * Remove class with given (fully qualified) name from repository.
- */
- public static void removeClass(String clazz) {
- getRepository().removeClass(getRepository().findClass(clazz));
- }
-
- // /**
- // * Remove given class from repository.
- // */
- // public static void removeClass(JavaClass clazz) {
- // getRepository().removeClass(clazz);
- // }
-
- // /**
- // * @return list of super classes of clazz in ascending order, i.e., Object is always the last element
- // */
- // public static JavaClass[] getSuperClasses(JavaClass clazz) {
- // return clazz.getSuperClasses();
- // }
- //
- // /**
- // * @return list of super classes of clazz in ascending order, i.e., Object is always the last element. return "null", if class
- // * cannot be found.
- // */
- // public static JavaClass[] getSuperClasses(String class_name) {
- // JavaClass jc = lookupClass(class_name);
- // return jc == null ? null : getSuperClasses(jc);
- // }
- //
- // /**
- // * @return all interfaces implemented by class and its super classes and the interfaces that those interfaces extend, and so
- // on.
- // * (Some people call this a transitive hull).
- // */
- // public static JavaClass[] getInterfaces(JavaClass clazz) {
- // return clazz.getAllInterfaces();
- // }
-
- // /**
- // * @return all interfaces implemented by class and its super classes and the interfaces that extend those interfaces, and so
- // on
- // */
- // public static JavaClass[] getInterfaces(String class_name) {
- // return getInterfaces(lookupClass(class_name));
- // }
-
- /**
- * Equivalent to runtime "instanceof" operator.
- *
- * @return true, if clazz is an instance of super_class
- */
- public static boolean instanceOf(JavaClass clazz, JavaClass super_class) {
- return clazz.instanceOf(super_class);
- }
-
- /**
- * @return true, if clazz is an instance of super_class
- */
- public static boolean instanceOf(String clazz, String super_class) {
- return instanceOf(lookupClass(clazz), lookupClass(super_class));
- }
-
- // /**
- // * @return true, if clazz is an instance of super_class
- // */
- // public static boolean instanceOf(JavaClass clazz, String super_class) {
- // return instanceOf(clazz, lookupClass(super_class));
- // }
-
- // /**
- // * @return true, if clazz is an instance of super_class
- // */
- // public static boolean instanceOf(String clazz, JavaClass super_class) {
- // return instanceOf(lookupClass(clazz), super_class);
- // }
-
- /**
- * @return true, if clazz is an implementation of interface inter
- */
- public static boolean implementationOf(JavaClass clazz, JavaClass inter) {
- return clazz.implementationOf(inter);
- }
-
- /**
- * @return true, if clazz is an implementation of interface inter
- */
- public static boolean implementationOf(String clazz, String inter) {
- return implementationOf(lookupClass(clazz), lookupClass(inter));
- }
-
- //
- // /**
- // * @return true, if clazz is an implementation of interface inter
- // */
- // public static boolean implementationOf(JavaClass clazz, String inter) {
- // return implementationOf(clazz, lookupClass(inter));
- // }
-
- // /**
- // * @return true, if clazz is an implementation of interface inter
- // */
- // public static boolean implementationOf(String clazz, JavaClass inter) {
- // return implementationOf(lookupClass(clazz), inter);
- // }
- }
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