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/*
 * smart-doc https://github.com/shalousun/smart-doc
 *
 * Copyright (C) 2018-2021 smart-doc
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.smartdoc.gradle.util;


import org.gradle.api.Project;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.file.FileCollection;
import org.gradle.api.plugins.JavaPlugin;
import org.gradle.api.plugins.JavaPluginConvention;
import org.gradle.api.tasks.SourceSet;
import org.gradle.api.tasks.SourceSetContainer;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

/**
 * @author yu 2020/4/29
 */
public class ClassLoaderUtil {

    /**
     * Get classloader
     *
     * @param project MavenProject
     * @return ClassLoader
     */
    public static ClassLoader getRuntimeClassLoader(Project project) {
        try {
            Configuration compileConfiguration = project.getConfigurations().getByName(JavaPlugin.COMPILE_CLASSPATH_CONFIGURATION_NAME);
            Set fileSet = compileConfiguration.getFiles();
            List urls = new ArrayList<>();
            for (File file : fileSet) {
                urls.add(file.toURI().toURL());
            }
            SourceSetContainer ssc = project.getConvention().getPlugin(JavaPluginConvention.class).getSourceSets();
            FileCollection classesDir = ssc.getByName(SourceSet.MAIN_SOURCE_SET_NAME).getOutput().getClassesDirs();
            Set fileSet1 = classesDir.getFiles();
            for (File file : fileSet1) {
                urls.add(file.toURI().toURL());
            }
            URL[] runtimeUrls = urls.toArray(new URL[0]);
            return new URLClassLoader(runtimeUrls, Thread.currentThread().getContextClassLoader());
        } catch (MalformedURLException e) {
            throw new RuntimeException("Unable to load project runtime !", e);
        }
    }
}