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.dinky.utils;
  
  import org.dinky.assertion.Asserts;
  import org.dinky.data.exception.BusException;
  import org.dinky.data.model.ext.FileNode;
  
  import java.io.BufferedReader;
  import java.io.File;
  import java.io.InputStreamReader;
  import java.nio.charset.StandardCharsets;
  import java.nio.file.Files;
  import java.util.ArrayList;
  import java.util.List;
  
  import cn.hutool.core.util.StrUtil;
  
  /**
   * DirUtil
   *
   * @since 2022/10/14 21:43
   */
  public class DirUtil {
  
      public static List<FileNode> listDirByPath(String path) {
          List<FileNode> dirList = new ArrayList<>();
          File logDir = new File(path);
          if (logDir.isFile()) {
              throw new BusException(StrUtil.format("Directory path {} is a file.", path));
          }
          File[] files = logDir.listFiles();
          if (Asserts.isNull(files)) {
              throw new BusException(StrUtil.format("Directory path {} does not exist.", path));
          }
          for (File file : files) {
              FileNode fileNode = new FileNode(file.getName(), file.isDirectory(), 0, file.getAbsolutePath());
              if (!fileNode.isDir()) {
                  fileNode.setSize(file.length());
              }
              dirList.add(fileNode);
          }
          return dirList;
      }
  
      public static String readFile(String path) {
          StringBuilder builder = new StringBuilder();
          File file = new File(path);
          if (!file.isFile()) {
              throw new BusException(StrUtil.format("File path {} is not a file.", path));
          }
          try (InputStreamReader inputStreamReader =
                          new InputStreamReader(Files.newInputStream(file.toPath()), StandardCharsets.UTF_8);
                  BufferedReader bufferedReader = new BufferedReader(inputStreamReader)) {
              String content;
              while ((content = bufferedReader.readLine()) != null) {
                  builder.append("\n");
                  builder.append(content);
              }
          } catch (Exception e) {
              e.printStackTrace();
          }
          return builder.toString();
      }
  }
  