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.statistic.sql.analyzer.UserSqlRWStat;
  import com.actiontech.dble.statistic.sql.analyzer.UserStat;
  import com.actiontech.dble.statistic.sql.analyzer.UserStatAbstractAnalyzer;
  import com.actiontech.dble.util.FormatUtil;
  import com.actiontech.dble.util.LongUtil;
  import com.actiontech.dble.util.StringUtil;
  
  import java.nio.ByteBuffer;
  import java.text.DecimalFormat;
  import java.util.Map;
  
  /**
   * ShowSQLSumUser
   * <p>
   * 1.R/W read /write
   * 2.TIME_COUNT
   * 3.TTL_COUNT
   * 4.Net in/out bytes
   *
   * @author zhuam
   */
  public final class ShowSQLSumUser {
      private ShowSQLSumUser() {
      }
  
      private static DecimalFormat decimalFormat = new DecimalFormat("0.00");
  
      private static final int FIELD_COUNT = 11;
      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();
  
      static {
          int i = 0;
          byte packetId = 0;
          HEADER.setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("ID", Fields.FIELD_TYPE_LONGLONG);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("USER", Fields.FIELD_TYPE_VARCHAR);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("R", Fields.FIELD_TYPE_LONGLONG);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("W", Fields.FIELD_TYPE_LONGLONG);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("R%", Fields.FIELD_TYPE_VAR_STRING);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("MAX", Fields.FIELD_TYPE_VAR_STRING);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("NET_IN", Fields.FIELD_TYPE_LONGLONG);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("NET_OUT", Fields.FIELD_TYPE_LONGLONG);
          FIELDS[i++].setPacketId(++packetId);
  
          //22-06h, 06-13h, 13-18h, 18-22h
          FIELDS[i] = PacketUtil.getField("TIME_COUNT", Fields.FIELD_TYPE_VAR_STRING);
          FIELDS[i++].setPacketId(++packetId);
  
          //<10ms, 10ms-200ms, 200ms-1s, >1s
          FIELDS[i] = PacketUtil.getField("TTL_COUNT", Fields.FIELD_TYPE_VAR_STRING);
          FIELDS[i++].setPacketId(++packetId);
  
          FIELDS[i] = PacketUtil.getField("LAST_TIME", Fields.FIELD_TYPE_VAR_STRING);
          FIELDS[i++].setPacketId(++packetId);
          EOF.setPacketId(++packetId);
      }
  
      public static void execute(ManagerService service, boolean isClear) {
          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
          byte packetId = EOF.getPacketId();
          int i = 0;
  
          Map<String, UserStat> statMap = UserStatAbstractAnalyzer.getInstance().getUserStatMap();
          for (UserStat userStat : statMap.values()) {
              i++;
              RowDataPacket row = getRow(userStat, i, service.getCharset().getResults());
              row.setPacketId(++packetId);
              buffer = row.write(buffer, service, true);
  
          }
  
          if (isClear) {
              UserStatAbstractAnalyzer.getInstance().reset();
          }
  
          // write last eof
          EOFRowPacket lastEof = new EOFRowPacket();
          lastEof.setPacketId(++packetId);
  
  
          lastEof.write(buffer, service);
      }
  
      private static RowDataPacket getRow(UserStat userStat, long idx, String charset) {
          RowDataPacket row = new RowDataPacket(FIELD_COUNT);
          row.add(LongUtil.toBytes(idx));
          if (userStat == null) {
              row.add(StringUtil.encode(("not fond"), charset));
              return row;
          }
  
          UserSqlRWStat rwStat = userStat.getRWStat();
          long r = rwStat.getRCount();
          long w = rwStat.getWCount();
          String rStr = decimalFormat.format(1.0D * r / (r + w));
          int max = rwStat.getConcurrentMax();
  
          row.add(StringUtil.encode(userStat.getFrontendInfo().getUser(), charset));
          row.add(LongUtil.toBytes(r));
          row.add(LongUtil.toBytes(w));
          row.add(StringUtil.encode(String.valueOf(rStr), charset));
          row.add(StringUtil.encode(String.valueOf(max), charset));
          row.add(LongUtil.toBytes(rwStat.getNetInBytes()));
          row.add(LongUtil.toBytes(rwStat.getNetOutBytes()));
          row.add(StringUtil.encode(rwStat.getExecuteHistogram().toString(), charset));
          row.add(StringUtil.encode(rwStat.getTimeHistogram().toString(), charset));
          row.add(StringUtil.encode(FormatUtil.formatDate(rwStat.getLastExecuteTime()), charset));
  
          return row;
      }
  
  }
  