content: /*
   * Copyright (C) 2016-2023 ActionTech.
   * License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher.
   */
  
  package com.actiontech.dble.services.manager.response;
  
  import com.actiontech.dble.config.Fields;
  import com.actiontech.dble.config.model.SystemConfig;
  import com.actiontech.dble.net.mysql.*;
  import com.actiontech.dble.services.manager.ManagerService;
  
  import java.io.File;
  import java.nio.ByteBuffer;
  import java.util.ArrayList;
  import java.util.List;
  
  import static com.actiontech.dble.backend.mysql.PacketUtil.getField;
  import static com.actiontech.dble.backend.mysql.PacketUtil.getHeader;
  
  public final class ShowLoadDataErrorFile {
      private ShowLoadDataErrorFile() {
      }
  
      private static final int FIELD_COUNT = 1;
      private static final ResultSetHeaderPacket HEADER = getHeader(FIELD_COUNT);
      private static final FieldPacket[] FIELDS = new FieldPacket[FIELD_COUNT];
      private static final EOFPacket EOF = new EOFPacket();
  
  
      public static void execute(ManagerService service) {
          int i = 0;
          byte packetId = 0;
          HEADER.setPacketId(++packetId);
  
          FIELDS[i] = getField("error_load_data_file", Fields.FIELD_TYPE_VAR_STRING);
          FIELDS[i].setPacketId(++packetId);
  
          EOF.setPacketId(++packetId);
          ByteBuffer buffer = service.allocate();
  
          // write header
          buffer = HEADER.write(buffer, service, true);
  
          // write fields
          for (FieldPacket field : FIELDS) {
              buffer = field.write(buffer, service, true);
          }
  
          // write eof
          buffer = EOF.write(buffer, service, true);
  
          // write rows
          String filePath = SystemConfig.getInstance().getHomePath() + File.separator + "temp" + File.separator + "error";
          List<String> errorFileList = new ArrayList<>();
          getErrorFile(filePath, errorFileList);
          for (String errorFilePath : errorFileList) {
              RowDataPacket row = new RowDataPacket(FIELD_COUNT);
              row.add(errorFilePath.getBytes());
              row.setPacketId(++packetId);
              buffer = row.write(buffer, service, true);
          }
          // write last eof
          EOFRowPacket lastEof = new EOFRowPacket();
          lastEof.setPacketId(++packetId);
          lastEof.write(buffer, service);
      }
  
      private static void getErrorFile(String filePath, List<String> errorFileList) {
          File dirFile = new File(filePath);
          if (!dirFile.exists()) {
              return;
          }
          File[] fileList = dirFile.listFiles();
          if (fileList != null) {
              for (File file : fileList) {
                  if (file.isFile() && file.exists()) {
                      errorFileList.add(file.getPath());
                  } else if (file.isDirectory()) {
                      getErrorFile(file.getPath(), errorFileList);
                  }
              }
          }
      }
  }
  