    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 */
    017package org.apache.bcel.util;
    018
    019import java.util.HashMap;
    020import java.util.Map;
    021
    022import org.apache.bcel.classfile.JavaClass;
    023
    024/**
    025 * This repository is used in situations where a Class is created outside the realm of a ClassLoader. Classes are loaded
    026 * from the file systems using the paths specified in the given class path. By default, this is the value returned by
    027 * ClassPath.getClassPath().
    028 *
    029 * @see org.apache.bcel.Repository
    030 */
    031public class ClassPathRepository extends AbstractClassPathRepository {
    032
    033    private final Map<String, JavaClass> loadedClasses = new HashMap<>(); // CLASSNAME X JAVACLASS
    034
    035    public ClassPathRepository(final ClassPath classPath) {
    036        super(classPath);
    037    }
    038
    039    /**
    040     * Clears all entries from cache.
    041     */
    042    @Override
    043    public void clear() {
    044        loadedClasses.clear();
    045    }
    046
    047    /**
    048     * Finds an already defined (cached) JavaClass object by name.
    049     */
    050    @Override
    051    public JavaClass findClass(final String className) {
    052        return loadedClasses.get(className);
    053    }
    054
    055    /**
    056     * Removes class from repository.
    057     */
    058    @Override
    059    public void removeClass(final JavaClass javaClass) {
    060        loadedClasses.remove(javaClass.getClassName());
    061    }
    062
    063    /**
    064     * Stores a new JavaClass instance into this Repository.
    065     */
    066    @Override
    067    public void storeClass(final JavaClass javaClass) {
    068        loadedClasses.put(javaClass.getClassName(), javaClass);
    069        javaClass.setRepository(this);
    070    }
    071}