public BaseConditionParameter(string type, IColumnObject first, IConditionRightSideObject second)
{
var item = typeMapping.First(t => t.Item2 == type);
if (item == null)
{
throw new ParameterParseException(string.Format("Unknown condition type [{0}].", type));
}
ConditionType = item.Item1;
stringFormat = item.Item3;
First = first;
Second = second;
}
public static BaseConditionParameter TranslateByDictionary(string type, object dicObj, bool canUseAggregation)
{
var dic = dicObj as IDictionary <string, JToken>;
if (dic == null)
{
throw new Exception("条件指令内容错误！");
}
IColumnObject firstCO = null;
IConditionRightSideObject secondCRSO = null;
object value = null;
if (dic.ContainsKey("$key"))
{
//复杂形式
if (!dic.ContainsKey("$value"))
{
throw new Exception("条件指令复杂形式必须同时设置$key与$value值");
}
if (!(dic["$key"] is IDictionary <string, object>))
{
throw new Exception("条件指令复杂形式$key必须为字段对象！");
}
var firstDic = dic["$key"] as IDictionary <string, object>;
if (!firstDic.ContainsKey("$name"))
{
throw new Exception("条件指令复杂形式$key对应的字段对象必须包含$name！");
}
if (canUseAggregation)
{
var cco = new ComplexColumnObject()
{
Name = firstDic["$name"].ToString()
};
if (firstDic.ContainsKey("$aggregation") && firstDic["$aggregation"] != null)
{
cco.Aggregation = firstDic["$aggregation"].ToString().ToAggregationType();
if (cco.Aggregation == null)
{
throw new Exception("聚合指令无法识别！");
}
}
if (firstDic.ContainsKey("$distinct") && firstDic["$distinct"] != null)
{
cco.IsDistinct = firstDic["$distinct"].ToString().ToLower().Equals("false");
}
firstCO = cco;
}
else
{
firstCO = new SimpleColumnObject()
{
Name = firstDic["$name"].ToString()
};
}
value = dic["$value"];
}
else
{
//简单形式
if (dic.Keys.Count != 1)
{
throw new Exception("条件指令简单形式对应的对象中不支持多字段的判断！");
}
firstCO = new SimpleColumnObject()
{
Name = dic.Keys.First()
};
value = dic.First().Value;
}
if (value is IDictionary <string, object> )
{
var secondDic = value as IDictionary <string, object>;
if (canUseAggregation)
{
var cco = new ComplexColumnObject()
{
Name = secondDic["$name"].ToString()
};
if (secondDic.ContainsKey("$aggregation") && secondDic["$aggregation"] != null)
{
cco.Aggregation = secondDic["$aggregation"].ToString().ToAggregationType();
if (cco.Aggregation == null)
{
throw new Exception("聚合指令无法识别！");
}
}
if (secondDic.ContainsKey("$distinct") && secondDic["$distinct"] != null)
{
cco.IsDistinct = secondDic["$distinct"].ToString().ToLower().Equals("false");
}
secondCRSO = cco;
}
else
{
secondCRSO = new SimpleColumnObject()
{
Name = secondDic["$name"].ToString()
};
}
}
else
{
secondCRSO = new ValueObject()
{
Value = value
};
}
return(new BaseConditionParameter(type, firstCO, secondCRSO));
}
