content: /*
   * Created by LuaView.
   * Copyright (c) 2017, Alibaba Group. All rights reserved.
   *
   * This source code is licensed under the MIT.
   * For the full copyright and license information,please view the LICENSE file in the root directory of this source tree.
   */
  
  package com.taobao.luaview.userdata.kit;
  
  import android.text.TextUtils;
  
  import com.taobao.luaview.fun.mapper.LuaViewLib;
  import com.taobao.luaview.userdata.base.BaseLuaTable;
  import com.taobao.luaview.util.DateUtil;
  import com.taobao.luaview.util.EncryptUtil;
  
  import org.luaj.vm2.Globals;
  import org.luaj.vm2.LuaFunction;
  import org.luaj.vm2.LuaValue;
  import org.luaj.vm2.Varargs;
  import org.luaj.vm2.lib.VarArgFunction;
  
  /**
   * 下载器 TODO
   *
   * @author song
   * @date 15/9/6
   */
  @LuaViewLib(revisions = {"20170306已对标"})
  @Deprecated
  public class UDDownloader extends BaseLuaTable {
  
      public UDDownloader(Globals globals, LuaValue metatable) {
          super(globals, metatable);
          init();
      }
  
      private void init() {
          set("fetch", new fetch());
      }
  
      private String newFileName(String url) {
          return EncryptUtil.md5(url) + DateUtil.getCurrent(DateUtil.DATE_FORMAT_CN_24_SHORT_ENG);
      }
  
      /**
       * 下载内容
       */
      class fetch extends VarArgFunction {
          @Override
          public Varargs invoke(Varargs args) {
              final String url = args.optjstring(1, null);
              if (!TextUtils.isEmpty(url)) {
                  final String fileName = args.optjstring(2, newFileName(url));
                  final LuaFunction callback = args.optfunction(3, null);
                  //TODO 下载器下载并保存
              }
              return UDDownloader.this;
          }
      }
  
  
  }
  