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.language.groovy;
  
  import java.io.Closeable;
  import java.io.IOException;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Set;
  import java.util.TreeSet;
  
  import org.codehaus.groovy.runtime.InvokerHelper;
  
  public class GroovyScriptClassLoader extends ClassLoader implements Closeable {
  
      private final Map<String, Class<?>> classes = new HashMap<>();
  
      public GroovyScriptClassLoader() {
          super(GroovyScriptClassLoader.class.getClassLoader());
      }
  
      public GroovyScriptClassLoader(ClassLoader parent) {
          super(parent);
      }
  
      @Override
      public String getName() {
          return "GroovyScriptClassLoader";
      }
  
      public void addClass(String name, Class<?> clazz) {
          classes.put(name, clazz);
      }
  
      /**
       * Number of classes in this classloader
       */
      public int size() {
          return classes.size();
      }
  
      /**
       * The names of the classes that has been compiled and added to this classloader.
       */
      public Set<String> getCompiledClassNames() {
          return new TreeSet<>(classes.keySet());
      }
  
      @Override
      protected Class<?> findClass(String name) throws ClassNotFoundException {
          Class<?> clazz = classes.get(name);
          if (clazz != null) {
              return clazz;
          }
          throw new ClassNotFoundException(name);
      }
  
      @Override
      public Class<?> loadClass(String name) throws ClassNotFoundException {
          Class<?> clazz = classes.get(name);
          if (clazz != null) {
              return clazz;
          }
          throw new ClassNotFoundException(name);
      }
  
      public void removeClass(String name) {
          Class<?> clazz = classes.get(name);
          if (clazz != null) {
              InvokerHelper.removeClass(clazz);
          }
      }
  
      @Override
      public void close() throws IOException {
          clear();
      }
  
      void clear() {
          for (Class<?> clazz : classes.values()) {
              InvokerHelper.removeClass(clazz);
          }
          classes.clear();
      }
  
  }
  