Beispiel #1
0
 private void processComparativeOne(
     Comparable<?> condition,
     Set<Object> retValue,
     Integer cumulativeTimes,
     Comparable<?> atomIncrValue,
     boolean needMergeValueInCloseInterval) {
   Comparative comp = (Comparative) condition;
   int comparison = comp.getComparison();
   switch (comparison) {
     case 0:
       // 为0 的时候表示纯粹的包装对象。
       process(
           comp.getValue(),
           retValue,
           cumulativeTimes,
           atomIncrValue,
           needMergeValueInCloseInterval);
       break;
     case Comparative.Equivalent:
       // 等于关系,直接放在collection
       retValue.add(EnumeratorUtils.toPrimaryValue(comp.getValue()));
       break;
     case Comparative.GreaterThan:
     case Comparative.GreaterThanOrEqual:
     case Comparative.LessThan:
     case Comparative.LessThanOrEqual:
       // 各种需要全取的情况
       throw new EnumerationInterruptException(comp);
     default:
       throw new NotSupportException();
   }
 }
Beispiel #2
0
 /** 是否属于一个区间 */
 private boolean isCloseInterval(Comparative from, Comparative to) {
   int fromComparasion = from.getComparison();
   int toComparasion = to.getComparison();
   // 本来想简单通过数值比大小,但发现里面还有not in,like这类的标记,还是保守点写清楚
   if ((fromComparasion == Comparative.GreaterThan
           || fromComparasion == Comparative.GreaterThanOrEqual)
       && (toComparasion == Comparative.LessThan
           || toComparasion == Comparative.LessThanOrEqual)) {
     return true;
   } else {
     return false;
   }
 }
Beispiel #3
0
  /**
   * 根据传入的参数决定使用哪类枚举器
   *
   * @param comp
   * @param needMergeValueInCloseInterval
   * @return
   */
  private CloseIntervalFieldsEnumeratorHandler getCloseIntervalEnumeratorHandlerByComparative(
      Comparative comp, boolean needMergeValueInCloseInterval) {
    if (!needMergeValueInCloseInterval) {
      return enumeratorMap.get(DEFAULT_ENUMERATOR);
    }
    if (comp == null) {
      throw new IllegalArgumentException("comp is null");
    }

    Comparable value = comp.getValue();
    if (value instanceof ComparativeBaseList) {
      ComparativeBaseList comparativeBaseList = (ComparativeBaseList) value;
      for (Comparative comparative : comparativeBaseList.getList()) {
        return getCloseIntervalEnumeratorHandlerByComparative(
            comparative, needMergeValueInCloseInterval);
      }

      throw new NotSupportException(); // 不可能到这一步
    } else if (value instanceof Comparative) {
      return getCloseIntervalEnumeratorHandlerByComparative(comp, needMergeValueInCloseInterval);
    } else {
      // 表明是一个comparative对象
      CloseIntervalFieldsEnumeratorHandler enumeratorHandler =
          enumeratorMap.get(value.getClass().getName());
      if (enumeratorHandler != null) {
        return enumeratorHandler;
      } else {
        return enumeratorMap.get(DEFAULT_ENUMERATOR);
      }
    }
  }
Beispiel #4
0
  private void processComparativeAnd(
      Comparable<?> condition,
      Set<Object> retValue,
      Integer cumulativeTimes,
      Comparable<?> atomIncrValue,
      boolean needMergeValueInCloseInterval) {
    List<Comparative> andList = ((ComparativeAND) condition).getList();
    // 多余两个感觉没什么实际的意义,碰到了再处理
    if (andList.size() == 2) {
      Comparable<?> arg1 = andList.get(0);
      Comparable<?> arg2 = andList.get(1);
      Comparative compArg1 = valid2varableInAndIsNotComparativeBaseList(arg1);
      Comparative compArg2 = valid2varableInAndIsNotComparativeBaseList(arg2);

      int compResult = 0;
      try {
        compArg1.setValue(EnumeratorUtils.toPrimaryValue(compArg1.getValue()));
        compArg2.setValue(EnumeratorUtils.toPrimaryValue(compArg2.getValue()));
        compResult = compArg1.getValue().compareTo(compArg2.getValue());
      } catch (NullPointerException e) {
        throw new IllegalArgumentException("ComparativeAnd args is null", e);
      }

      if (compResult == 0) {
        // 值相等,如果都含有=关系,那么还有个公共点,否则一个公共点都没有
        if (containsEquvilentRelation(compArg1) && containsEquvilentRelation(compArg2)) {
          retValue.add(compArg1.getValue());
        }
      } else if (compResult < 0) {
        // arg1 < arg2
        processTwoDifferentArgsInComparativeAnd(
            retValue,
            compArg1,
            compArg2,
            cumulativeTimes,
            atomIncrValue,
            needMergeValueInCloseInterval);
      } else {
        // compResult>0
        // arg1 > arg2
        processTwoDifferentArgsInComparativeAnd(
            retValue,
            compArg2,
            compArg1,
            cumulativeTimes,
            atomIncrValue,
            needMergeValueInCloseInterval);
      }
    } else {
      throw new TddlRuleException("ComparativeAND only support two args");
    }
  }
Beispiel #5
0
 private boolean containsEquvilentRelation(Comparative comp) {
   int comparasion = comp.getComparison();
   if (comparasion == Comparative.Equivalent
       || comparasion == Comparative.GreaterThanOrEqual
       || comparasion == Comparative.LessThanOrEqual) {
     return true;
   }
   return false;
 }
Beispiel #6
0
  private Comparative valid2varableInAndIsNotComparativeBaseList(Comparable<?> arg) {
    if (arg instanceof ComparativeBaseList) {
      throw new TddlRuleException("ComparativeAND only support two args");
    }

    if (arg instanceof Comparative) {
      Comparative comp = ((Comparative) arg);
      int comparison = comp.getComparison();
      if (comparison == 0) {
        // 0的时候意味着这个非ComparativeBaseList的Comparative是个纯粹的包装对象。
        return valid2varableInAndIsNotComparativeBaseList(comp.getValue());
      } else {
        // 其他就是有意义的值对象了
        return comp;
      }
    } else {
      // 否则就是基本对象,应该用等于包装
      // return new Comparative(Comparative.Equivalent,arg);
      throw new IllegalArgumentException("input value is not a comparative: " + arg);
    }
  }
Beispiel #7
0
 /**
  * 处理在一个and条件中的两个不同的argument
  *
  * @param samplingField
  * @param from
  * @param to
  */
 private void processTwoDifferentArgsInComparativeAnd(
     Set<Object> retValue,
     Comparative from,
     Comparative to,
     Integer cumulativeTimes,
     Comparable<?> atomIncrValue,
     boolean needMergeValueInCloseInterval) {
   if (isCloseInterval(from, to)) { // 处理 1 < x < 3的情况
     mergeFeildOfDefinitionInCloseInterval(
         from, to, retValue, cumulativeTimes, atomIncrValue, needMergeValueInCloseInterval);
   } else { // 处理 1 < x = 3 or 1 = x <= 3
     Comparable temp = compareAndGetIntersactionOneValue(from, to);
     if (temp != null) {
       retValue.add(temp);
     } else {
       // 闭区间已经处理过,x >= ? and x = ? 或者 x <= ? and x = ?有交的也处理过,纯粹的> 和
       // <已经被转化为 >= 以及<=
       // 这里主要处理三类情况 x <= 3 and x>=5 这类,
       if (from.getComparison() == Comparative.LessThanOrEqual
           || from.getComparison() == Comparative.LessThan) {
         if (to.getComparison() == Comparative.LessThanOrEqual
             || to.getComparison() == Comparative.LessThan) {
           // 处理 x <= 3 and x <= 5
           processAllPassableFields(
               from, retValue, cumulativeTimes, atomIncrValue, needMergeValueInCloseInterval);
         } else {
           // to为GreaterThanOrEqual,或者为Equals 那么是个开区间,无交集
           // do nothing.
         }
       } else if (to.getComparison() == Comparative.GreaterThanOrEqual
           || to.getComparison() == Comparative.GreaterThan) {
         if (from.getComparison() == Comparative.GreaterThanOrEqual
             || from.getComparison() == Comparative.GreaterThan) {
           // 处理 x >= 3 and x >= 5
           processAllPassableFields(
               to, retValue, cumulativeTimes, atomIncrValue, needMergeValueInCloseInterval);
         } else {
           // from为LessThanOrEqual,或者为Equals,为开区间,无交集
           // do nothing.
         }
       }
     }
   }
 }
Beispiel #8
0
  /**
   * 处理一个and条件中 x > 1 and x = 3 类似这样的情况,因为前面已经对from 和 to 相等的情况作了处理 因此这里只需要处理不等的情况中的上述问题。 同时也处理了x = 1
   * and x = 2这种情况。以及x = 1 and x>2 和x < 1 and x =2这种情况
   *
   * @param from
   * @param to
   * @return
   */
  protected static Comparable compareAndGetIntersactionOneValue(Comparative from, Comparative to) {
    // x = from and x <= to
    if (from.getComparison() == Comparative.Equivalent) {
      if (to.getComparison() == Comparative.LessThan
          || to.getComparison() == Comparative.LessThanOrEqual) {
        return from.getValue();
      }
    }

    // x <= from and x = to
    if (to.getComparison() == Comparative.Equivalent) {
      if (from.getComparison() == Comparative.GreaterThan
          || from.getComparison() == Comparative.GreaterThanOrEqual) {
        return to.getValue();
      }
    }

    return null;
  }