content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  package jaxp.sun.org.apache.bcel.internal;
  
  /* ====================================================================
   * 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 (http://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
   * <http://www.apache.org/>.
   */
  
  import jaxp.sun.org.apache.bcel.internal.classfile.JavaClass;
  import jaxp.sun.org.apache.bcel.internal.util.*;
  
  import jaxp.sun.org.apache.bcel.internal.util.ClassPath;
  import jaxp.sun.org.apache.bcel.internal.util.SyntheticRepository;
  
  import java.io.*;
  
  /**
   * 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 jaxp.sun.org.apache.bcel.internal.util.Repository
   * @see SyntheticRepository
   *
   * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
   */
  public abstract class Repository {
    private static jaxp.sun.org.apache.bcel.internal.util.Repository _repository =
      SyntheticRepository.getInstance();
  
    /** @return currently used repository instance
     */
    public static jaxp.sun.org.apache.bcel.internal.util.Repository getRepository() {
      return _repository;
    }
  
    /** Set repository instance to be used for class loading
     */
    public static void setRepository(jaxp.sun.org.apache.bcel.internal.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 = _repository.findClass(class_name);
  
        if(clazz == null) {
          return _repository.loadClass(class_name);
        } else {
          return clazz;
        }
      } 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 _repository.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.SYSTEM_CLASS_PATH.getClassFile(class_name);
      } catch(IOException e) { return null; }
    }
  
    /** Clear the repository.
     */
    public static void clearCache() {
      _repository.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 = _repository.findClass(clazz.getClassName());
      _repository.storeClass(clazz);
      return old;
    }
  
    /**
     * Remove class with given (fully qualified) name from repository.
     */
    public static void removeClass(String clazz) {
      _repository.removeClass(_repository.findClass(clazz));
    }
  
    /**
     * Remove given class from repository.
     */
    public static void removeClass(JavaClass clazz) {
      _repository.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);
    }
  }
  