content: /*
   * Copyright 2002-2017 the original author or authors.
   *
   * Licensed 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
   *
   *      https://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.alibaba.nacos.common.packagescan.resource;
  
  import java.io.IOException;
  import java.lang.reflect.InvocationHandler;
  import java.lang.reflect.Proxy;
  import java.net.URL;
  
  /**
   * Copy from https://github.com/spring-projects/spring-framework.git, with less modifications
   * Artificial class used for accessing the {@link VfsUtils} methods
   * without exposing them to the entire world.
   *
   * @author Costin Leau
   * @since 3.0.3
   */
  abstract class VfsPatternUtils extends VfsUtils {
  
      static Object getVisitorAttributes() {
          return doGetVisitorAttributes();
      }
  
      static String getPath(Object resource) {
          String path = doGetPath(resource);
          return (path != null ? path : "");
      }
  
      static Object findRoot(URL url) throws IOException {
          return getRoot(url);
      }
  
      static void visit(Object resource, InvocationHandler visitor) throws IOException {
          Object visitorProxy = Proxy.newProxyInstance(
                  VIRTUAL_FILE_VISITOR_INTERFACE.getClassLoader(),
                  new Class<?>[]{VIRTUAL_FILE_VISITOR_INTERFACE}, visitor);
          invokeVfsMethod(VIRTUAL_FILE_METHOD_VISIT, resource, visitorProxy);
      }
  
  }
  