    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.bcel.util;
    020
    021import java.util.HashMap;
    022import java.util.Map;
    023
    024import org.apache.bcel.classfile.JavaClass;
    025
    026/**
    027 * This repository is used in situations where a Class is created outside the realm of a ClassLoader. Classes are loaded
    028 * from the file systems using the paths specified in the given class path. By default, this is the value returned by
    029 * ClassPath.getClassPath().
    030 *
    031 * @see org.apache.bcel.Repository
    032 */
    033public class ClassPathRepository extends AbstractClassPathRepository {
    034
    035    private final Map<String, JavaClass> loadedClasses = new HashMap<>(); // CLASSNAME X JAVACLASS
    036
    037    public ClassPathRepository(final ClassPath classPath) {
    038        super(classPath);
    039    }
    040
    041    /**
    042     * Clears all entries from cache.
    043     */
    044    @Override
    045    public void clear() {
    046        loadedClasses.clear();
    047    }
    048
    049    /**
    050     * Finds an already defined (cached) JavaClass object by name.
    051     */
    052    @Override
    053    public JavaClass findClass(final String className) {
    054        return loadedClasses.get(className);
    055    }
    056
    057    /**
    058     * Removes class from repository.
    059     */
    060    @Override
    061    public void removeClass(final JavaClass javaClass) {
    062        loadedClasses.remove(javaClass.getClassName());
    063    }
    064
    065    /**
    066     * Stores a new JavaClass instance into this Repository.
    067     */
    068    @Override
    069    public void storeClass(final JavaClass javaClass) {
    070        loadedClasses.put(javaClass.getClassName(), javaClass);
    071        javaClass.setRepository(this);
    072    }
    073}