    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 *  Unless required by applicable law or agreed to in writing, software
    012 *  distributed under the License is distributed on an "AS IS" BASIS,
    013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 *  See the License for the specific language governing permissions and
    015 *  limitations under the License.
    016 *
    017 */
    018package org.apache.bcel.util;
    019
    020import java.util.HashMap;
    021import java.util.Map;
    022
    023import org.apache.bcel.classfile.JavaClass;
    024
    025/**
    026 * This repository is used in situations where a Class is created outside the realm of a ClassLoader. Classes are loaded
    027 * from the file systems using the paths specified in the given class path. By default, this is the value returned by
    028 * ClassPath.getClassPath().
    029 *
    030 * @see org.apache.bcel.Repository
    031 */
    032public class ClassPathRepository extends AbstractClassPathRepository {
    033
    034    private final Map<String, JavaClass> loadedClasses = new HashMap<>(); // CLASSNAME X JAVACLASS
    035
    036    public ClassPathRepository(final ClassPath classPath) {
    037        super(classPath);
    038    }
    039
    040    /**
    041     * Clears all entries from cache.
    042     */
    043    @Override
    044    public void clear() {
    045        loadedClasses.clear();
    046    }
    047
    048    /**
    049     * Finds an already defined (cached) JavaClass object by name.
    050     */
    051    @Override
    052    public JavaClass findClass(final String className) {
    053        return loadedClasses.get(className);
    054    }
    055
    056    /**
    057     * Removes class from repository.
    058     */
    059    @Override
    060    public void removeClass(final JavaClass javaClass) {
    061        loadedClasses.remove(javaClass.getClassName());
    062    }
    063
    064    /**
    065     * Stores a new JavaClass instance into this Repository.
    066     */
    067    @Override
    068    public void storeClass(final JavaClass javaClass) {
    069        loadedClasses.put(javaClass.getClassName(), javaClass);
    070        javaClass.setRepository(this);
    071    }
    072}