content: /*
   * 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 org.apache.camel.itest.springboot.arquillian;
  
  import java.io.File;
  import java.lang.management.ManagementFactory;
  import java.lang.reflect.Method;
  import java.net.MalformedURLException;
  import java.net.URL;
  import java.net.URLClassLoader;
  import java.util.*;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  
  import org.springframework.boot.loader.launch.JarLauncher;
  import org.springframework.boot.loader.launch.LaunchedClassLoader;
  
  /**
   * A Spring-boot jar launcher that uses the current thread instead of creating a new thread for spring-boot.
   */
  public class ArquillianSyncBootJarLauncher extends JarLauncher {
  
      private ClassLoader classLoader;
  
      public ArquillianSyncBootJarLauncher() throws Exception {
          super();
      }
  
      public void run(String[] args) throws Exception {
          this.launch(args);
      }
  
      @Override
      protected void launch(ClassLoader classLoader, String mainClassName, String[] args) throws Exception {
          this.classLoader = classLoader;
  
          Thread.currentThread().setContextClassLoader(classLoader);
          Class<?> mainClass = Class.forName(mainClassName, false, classLoader);
          Method mainMethod = mainClass.getDeclaredMethod("main", String[].class);
          mainMethod.setAccessible(true);
          mainMethod.invoke(null, new Object[] { args });
      }
  
      @Override
      protected ClassLoader createClassLoader(Collection<URL> urls) throws Exception {
          // The spring classloader should not be built on top of the current classloader, it should just share the test
          // classes if available
          List<URL> parentUrls = Arrays.asList(urlsFromClassLoader(this.getClassLoader()));
          List<URL> additionalURLs = parentUrls.stream()
                  .filter(u -> u.toString().startsWith("file") && !u.toString().endsWith(".jar"))
                  .collect(Collectors.toList());
  
          ArrayList<URL> newURLs = new ArrayList<>();
          newURLs.addAll(urls);
          newURLs.addAll(additionalURLs);
  
          ClassLoader appClassLoader = getClass().getClassLoader().getParent();
  
          return new LaunchedClassLoader(isExploded(), getArchive(), newURLs.toArray(new URL[0]), appClassLoader);
      }
  
      /**
       * Returns the classloader used by spring, to communicate with it.
       *
       * @return the spring classloader
       */
      public ClassLoader getClassLoader() {
          return classLoader;
      }
  
      private static int getJavaMajorVersion() {
          String javaSpecVersion = System.getProperty("java.specification.version");
          if (javaSpecVersion.contains(".")) { // before jdk 9
              return Integer.parseInt(javaSpecVersion.split("\\.")[1]);
          } else {
              return Integer.parseInt(javaSpecVersion);
          }
      }
  
      private static URL[] urlsFromClassLoader(ClassLoader classLoader) {
          if (classLoader instanceof URLClassLoader) {
              return ((URLClassLoader) classLoader).getURLs();
          }
          return Stream.of(ManagementFactory.getRuntimeMXBean().getClassPath().split(File.pathSeparator))
                  .map(ArquillianSyncBootJarLauncher::toURL).toArray(URL[]::new);
      }
  
      private static URL toURL(String classPathEntry) {
          try {
              return new File(classPathEntry).toURI().toURL();
          } catch (MalformedURLException ex) {
              throw new IllegalArgumentException("URL could not be created from '" + classPathEntry + "'", ex);
          }
      }
  }
  