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.backend.mysql.PacketUtil;
  import com.actiontech.dble.config.Fields;
  import com.actiontech.dble.net.mysql.*;
  import com.actiontech.dble.services.manager.ManagerService;
  import com.actiontech.dble.util.LongUtil;
  
  import java.nio.ByteBuffer;
  
  public final class SelectSessionTxReadOnly {
      private SelectSessionTxReadOnly() {
      }
  
  
      public static void execute(ManagerService service, String column) {
          ByteBuffer buffer = service.allocate();
          byte packetId = 0;
          ResultSetHeaderPacket header = PacketUtil.getHeader(1);
          header.setPacketId(++packetId);
          // write header
          buffer = header.write(buffer, service, true);
          FieldPacket[] fields = new FieldPacket[1];
          fields[0] = PacketUtil.getField(column, Fields.FIELD_TYPE_INT24);
          fields[0].setPacketId(++packetId);
  
          // write fields
          for (FieldPacket field : fields) {
              buffer = field.write(buffer, service, true);
          }
          EOFPacket eof = new EOFPacket();
          eof.setPacketId(++packetId);
          // write eof
          buffer = eof.write(buffer, service, true);
  
          // write rows
          RowDataPacket row = new RowDataPacket(1);
          row.setPacketId(++packetId);
          row.add(LongUtil.toBytes(service.getUserConfig().isReadOnly() ? 1 : 0));
          buffer = row.write(buffer, service, true);
  
          // write last eof
          EOFRowPacket lastEof = new EOFRowPacket();
          lastEof.setPacketId(++packetId);
  
  
          lastEof.write(buffer, service);
      }
  
  }
  