001/*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.jetbrains.jet.codegen;
018
019import org.jetbrains.annotations.NotNull;
020
021import java.net.URL;
022import java.net.URLClassLoader;
023
024public class GeneratedClassLoader extends URLClassLoader {
025    private ClassFileFactory state;
026
027    public GeneratedClassLoader(@NotNull ClassFileFactory state, ClassLoader parentClassLoader, URL...urls) {
028        super(urls, parentClassLoader);
029        this.state = state;
030    }
031
032    @NotNull
033    @Override
034    protected Class<?> findClass(@NotNull String name) throws ClassNotFoundException {
035        String file = name.replace('.', '/') + ".class";
036        if (state.files().contains(file)) {
037            byte[] bytes = state.asBytes(file);
038            return defineClass(name, bytes, 0, bytes.length);
039        }
040        return super.findClass(name);
041    }
042
043    public void dispose() {
044        state = null;
045    }
046}