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    
017    package org.jetbrains.jet.codegen;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.OutputFile;
021    
022    import java.net.URL;
023    import java.net.URLClassLoader;
024    
025    public class GeneratedClassLoader extends URLClassLoader {
026        private ClassFileFactory state;
027    
028        public GeneratedClassLoader(@NotNull ClassFileFactory state, ClassLoader parentClassLoader, URL...urls) {
029            super(urls, parentClassLoader);
030            this.state = state;
031        }
032    
033        @NotNull
034        @Override
035        protected Class<?> findClass(@NotNull String name) throws ClassNotFoundException {
036            String classFilePath = name.replace('.', '/') + ".class";
037    
038            OutputFile outputFile = state.get(classFilePath);
039            if (outputFile != null) {
040                byte[] bytes = outputFile.asByteArray();
041                return defineClass(name, bytes, 0, bytes.length);
042            }
043    
044            return super.findClass(name);
045        }
046    
047        public void dispose() {
048            state = null;
049        }
050    }