content: /*
   * Copyright (C) 2016-2023 ActionTech.
   * License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher.
   */
  
  package com.actiontech.dble.server.response;
  
  import com.actiontech.dble.backend.mysql.PacketUtil;
  import com.actiontech.dble.config.Fields;
  import com.actiontech.dble.net.mysql.EOFPacket;
  import com.actiontech.dble.net.mysql.EOFRowPacket;
  import com.actiontech.dble.net.mysql.FieldPacket;
  import com.actiontech.dble.net.mysql.ResultSetHeaderPacket;
  import com.actiontech.dble.net.service.AbstractService;
  
  import java.nio.ByteBuffer;
  
  
  public final class InformationSchemaProfiling {
      private InformationSchemaProfiling() {
      }
  
      private static final int FIELD_COUNT = 3;
      private static final ResultSetHeaderPacket HEADER = PacketUtil.getHeader(FIELD_COUNT);
      private static final FieldPacket[] FIELDS = new FieldPacket[FIELD_COUNT];
      private static final EOFPacket EOF = new EOFPacket();
  
  
      /**
       * response method.
       *
       * @param service
       */
      public static void response(AbstractService service) {
  
  
          int i = 0;
          byte packetId = 0;
          HEADER.setPacketId(++packetId);
          FIELDS[i] = PacketUtil.getField("State", Fields.FIELD_TYPE_VAR_STRING);
          FIELDS[i].setPacketId(++packetId);
          FIELDS[i + 1] = PacketUtil.getField("Duration", Fields.FIELD_TYPE_DECIMAL);
          FIELDS[i + 1].setPacketId(++packetId);
  
          FIELDS[i + 2] = PacketUtil.getField("Percentage", Fields.FIELD_TYPE_DECIMAL);
          FIELDS[i + 2].setPacketId(++packetId);
          EOF.setPacketId(++packetId);
          ByteBuffer buffer = service.allocate();
  
          // writeDirectly header
          buffer = HEADER.write(buffer, service, true);
  
          // writeDirectly fields
          for (FieldPacket field : FIELDS) {
              buffer = field.write(buffer, service, true);
          }
  
          // writeDirectly eof
          buffer = EOF.write(buffer, service, true);
  
          // writeDirectly rows
          packetId = EOF.getPacketId();
  
  
          // writeDirectly last eof
          EOFRowPacket lastEof = new EOFRowPacket();
          lastEof.setPacketId(++packetId);
          lastEof.write(buffer, service);
      }
  
  
  }
  