content: /*
   * Copyright (C) 2016-2023 ActionTech.
   * based on code by MyCATCopyrightHolder Copyright (c) 2013, OpenCloudDB/MyCAT.
   * License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher.
   */
  package com.actiontech.dble.route.parser;
  
  import com.actiontech.dble.route.parser.util.Pair;
  import com.actiontech.dble.route.parser.util.ParseUtil;
  import com.actiontech.dble.util.SplitUtil;
  
  /**
   * @author mycat
   */
  public final class ManagerParseStop {
      private ManagerParseStop() {
      }
  
      public static final int OTHER = -1;
      public static final int HEARTBEAT = 1;
      public static final int STATISTIC_QUEUE_MONITOR = 2;
  
      public static int parse(String stmt, int offset) {
          int i = offset;
          for (; i < stmt.length(); i++) {
              switch (stmt.charAt(i)) {
                  case ' ':
                      continue;
                  case '/':
                  case '#':
                      i = ParseUtil.comment(stmt, i);
                      continue;
                  case '@':
                      return stop2Check(stmt, i);
                  default:
                      return OTHER;
              }
          }
          return OTHER;
      }
  
      public static Pair<String[], Integer> getPair(String stmt) {
          int offset = stmt.indexOf("@@");
          String s = stmt.substring(offset + 11).trim();
          int p1 = s.lastIndexOf(':');
          if (p1 == -1) {
              String[] src = SplitUtil.split(s, ',', '$', '-', '[', ']');
              return new Pair<>(src, null);
          } else {
              String[] src = SplitUtil.split(s, ':', true);
              String[] src1 = SplitUtil.split(src[0], ',', '$', '-', '[', ']');
              return new Pair<>(src1, Integer.valueOf(src[1]));
          }
      }
  
      // STATISTIC_QUEUE_TIMER
      // HEARTBEAT
      static int stop2Check(String stmt, int offset) {
          if (stmt.length() > ++offset && stmt.charAt(offset) == '@') {
              if (stmt.length() > offset + 21 && stmt.substring(offset + 1).toUpperCase().equals("STATISTIC_QUEUE_MONITOR")) {
                  return STATISTIC_QUEUE_MONITOR;
              } else if (stmt.length() > offset + 9) {
                  char c1 = stmt.charAt(++offset);
                  char c2 = stmt.charAt(++offset);
                  char c3 = stmt.charAt(++offset);
                  char c4 = stmt.charAt(++offset);
                  char c5 = stmt.charAt(++offset);
                  char c6 = stmt.charAt(++offset);
                  char c7 = stmt.charAt(++offset);
                  char c8 = stmt.charAt(++offset);
                  char c9 = stmt.charAt(++offset);
                  if ((c1 == 'H' || c1 == 'h') && (c2 == 'E' || c2 == 'e') && (c3 == 'A' || c3 == 'a') &&
                          (c4 == 'R' || c4 == 'r') && (c5 == 'T' || c5 == 't') && (c6 == 'B' || c6 == 'b') &&
                          (c7 == 'E' || c7 == 'e') && (c8 == 'A' || c8 == 'a') && (c9 == 'T' || c9 == 't')) {
                      if (stmt.length() > ++offset && stmt.charAt(offset) != ' ') {
                          return OTHER;
                      }
                      return HEARTBEAT;
                  }
              }
  
          }
          return OTHER;
      }
  
  }
  