/// <summary>
/// 等于条件表达式
/// </summary>
/// <param name="propertyName">属性名称</param>
/// <param name="value">表达式右边的值</param>
/// <returns>一个表达式实例</returns>
public static ExpressionEx Eq(string propertyName, object value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
ExpressionOperator = ExpressionOperators.Eq
};
return exp;
}
///// <summary>
///// 判断是否为Empty的条件表达式,只能用于String类型的字段
///// </summary>
///// <param name="propertyName">属性名称</param>
///// <returns>一个表达式实例</returns>
//public static ExpressionEx IsEmpty(string propertyName)
//{
// var exp = new ExpressionEx
// {
// PropertyName = propertyName,
// ExpressionOperator = ExpressionOperators.IsEmpty
// };
// return exp;
//}
///// <summary>
///// 判断是否不为Empty的条件表达式,只能用于String类型的字段
///// </summary>
///// <param name="propertyName">属性名称</param>
///// <returns>一个表达式实例</returns>
//public static ExpressionEx IsNotEmpty(string propertyName)
//{
// var exp = new ExpressionEx
// {
// PropertyName = propertyName,
// ExpressionOperator = ExpressionOperators.IsNotEmpty
// };
// return exp;
//}
public static ExpressionEx StartsWith(string propertyName, string value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
ExpressionOperator = ExpressionOperators.StartsWith
};
return(exp);
}
/// <summary>
/// 相似条件表达式
/// </summary>
/// <param name="propertyName">属性名称</param>
/// <param name="value">表达式右边的值</param>
/// <returns>一个表达式实例</returns>
public static ExpressionEx Like(string propertyName, object value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
ExpressionOperator = ExpressionOperators.Like
};
return(exp);
}
public static ExpressionEx Le(string propertyName, DateTime value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.DATETIME,
ExpressionOperator = ExpressionOperators.Le
};
return(exp);
}
public static ExpressionEx Le(string propertyName, int value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.INT,
ExpressionOperator = ExpressionOperators.Le
};
return(exp);
}
public static ExpressionEx Lt(string propertyName, double value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.DOUBLE,
ExpressionOperator = ExpressionOperators.Lt
};
return(exp);
}
public static ExpressionEx Ge(string propertyName, long value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.LONG,
ExpressionOperator = ExpressionOperators.Ge
};
return(exp);
}
/// <summary>
/// 大于条件表达式
/// </summary>
/// <param name="propertyName">属性名称</param>
/// <param name="value">表达式右边的值</param>
/// <returns>一个表达式实例</returns>
public static ExpressionEx Gt(string propertyName, float value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.FLOAT,
ExpressionOperator = ExpressionOperators.Gt
};
return(exp);
}
/// <summary>
/// Between条件表达式
/// </summary>
/// <param name="propertyName">属性名称</param>
/// <param name="valueLo">起始值</param>
/// <param name="valueHi">结束值</param>
/// <param name="includeBoundary">是否包含起始边界值</param>
/// <param name="rangeType">RANGE类型</param>
/// <returns>一个表达式实例</returns>
private static ExpressionEx Between(string propertyName, object valueLo, object valueHi, bool includeBoundary,
RangeType rangeType)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = valueLo,
Value1 = valueHi,
Value2 = includeBoundary,
Value3 = rangeType,
ExpressionOperator = ExpressionOperators.Between
};
return(exp);
}
/// <summary>
/// 构造一个And条件语句
/// </summary>
/// <param name="expl">左边条件表达式</param>
/// <param name="expr">右边条件表达式</param>
/// <param name="expList">右边条件表达式</param>
/// <returns>条件语句</returns>
public static Conditional And(ExpressionEx expl, ExpressionEx expr, params ExpressionEx[] expList)
{
var conditional = new Conditional();
var booleanQuery = new BooleanQuery();
booleanQuery.Add(Convert(expl), BooleanClause.Occur.MUST);
booleanQuery.Add(Convert(expr), BooleanClause.Occur.MUST);
foreach (ExpressionEx ex in expList)
{
booleanQuery.Add(Convert(ex), BooleanClause.Occur.MUST);
}
conditional._queryExpression = booleanQuery;
return(conditional);
}
/// <summary>
/// 构造一个And条件语句
/// </summary>
/// <param name="expl">左边条件表达式</param>
/// <param name="expr">右边条件表达式</param>
/// <returns>条件语句</returns>
public static Conditional And(ExpressionEx expl, ExpressionEx expr)
{
var conditional = new Conditional();
var booleanQuery = new BooleanQuery();
Query ql = Convert(expl);
if (ql is BooleanQuery)
{
foreach (object variable in ((BooleanQuery)ql).Clauses())
{
booleanQuery.Clauses().Add(variable);
}
}
else
{
booleanQuery.Add(ql, BooleanClause.Occur.MUST);
}
Query qr = Convert(expr);
if (qr is BooleanQuery)
{
foreach (object variable in ((BooleanQuery)qr).Clauses())
{
booleanQuery.Clauses().Add(variable);
}
}
else
{
booleanQuery.Add(qr, BooleanClause.Occur.MUST);
}
conditional._queryExpression = booleanQuery;
return(conditional);
}
/// <summary>
/// 构造一个And条件语句
/// </summary>
/// <param name="expl">左边条件表达式</param>
/// <param name="expr">右边条件表达式</param>
/// <returns>条件语句</returns>
public static Conditional And(ExpressionEx expl, ExpressionEx expr)
{
var conditional = new Conditional();
var booleanQuery = new BooleanQuery();
Query ql = Convert(expl);
if (ql is BooleanQuery)
{
foreach (object variable in ((BooleanQuery)ql).Clauses())
{
booleanQuery.Clauses().Add(variable);
}
}
else
{
booleanQuery.Add(ql, BooleanClause.Occur.MUST);
}
Query qr = Convert(expr);
if (qr is BooleanQuery)
{
foreach (object variable in ((BooleanQuery)qr).Clauses())
{
booleanQuery.Clauses().Add(variable);
}
}
else
{
booleanQuery.Add(qr, BooleanClause.Occur.MUST);
}
conditional._queryExpression = booleanQuery;
return conditional;
}
public static ExpressionEx Contains(string propertyName, string value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
ExpressionOperator = ExpressionOperators.Contains
};
return exp;
}
public static ExpressionEx EndsWith(string propertyName, string value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
ExpressionOperator = ExpressionOperators.EndWith
};
return exp;
}
/// <summary>
/// Between条件表达式
/// </summary>
/// <param name="propertyName">属性名称</param>
/// <param name="valueLo">起始值</param>
/// <param name="valueHi">结束值</param>
/// <param name="includeBoundary">是否包含起始边界值</param>
/// <param name="rangeType">RANGE类型</param>
/// <returns>一个表达式实例</returns>
private static ExpressionEx Between(string propertyName, object valueLo, object valueHi, bool includeBoundary,
RangeType rangeType)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = valueLo,
Value1 = valueHi,
Value2 = includeBoundary,
Value3 = rangeType,
ExpressionOperator = ExpressionOperators.Between
};
return exp;
}
public static ExpressionEx Le(string propertyName, DateTime value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.DATETIME,
ExpressionOperator = ExpressionOperators.Le
};
return exp;
}
public static ExpressionEx Le(string propertyName, int value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.INT,
ExpressionOperator = ExpressionOperators.Le
};
return exp;
}
/// <summary>
/// 构造一个Not条件语句
/// </summary>
public static Conditional Not(ExpressionEx exp)
{
var conditional = new Conditional();
conditional._queryExpression.Add(Convert(exp), BooleanClause.Occur.MUST_NOT);
return conditional;
}
public SearchResult Search(string index, string[] type, ExpressionEx expression, int from, int size)
{
return Search(index, type, Conditional.Get(expression), from, size);
}
/// <summary>
/// 构造一个条件语句
/// </summary>
/// <param name="exp">条件表达式</param>
/// <returns>条件语句</returns>
public static Conditional Get(ExpressionEx exp)
{
Query bq = Convert(exp);
return(Get(bq));
}
private static Query Convert(ExpressionEx exp)
{
#region TODO 参数设置
int maxSupportedIntValue = int.MaxValue;
int minSupportedIntValue = int.MinValue;
long minSupportedLongValue = long.MinValue;
long maxSupportedLongValue = long.MaxValue;
float minSupportedFloatValue = float.MinValue;
float maxSupportedFloatValue = float.MaxValue;
long minSupportedDateNum = 000000000000;
#endregion
switch (exp.ExpressionOperator)
{
#region eq
case ExpressionOperators.Eq:
object value = exp.Value;
#region
//if (value is bool)
//{
// if((bool)value)
// { value = SysDefinition.DATA_TYPE_BOOL_TRUE; }
// else
// { value = SysDefinition.DATA_TYPE_BOOL_FALSE; }
//}
#endregion
if (value is DateTime)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
return(new TermQuery(new Term(exp.PropertyName, startTime)));
}
return(new TermQuery(new Term(exp.PropertyName, PrepareValueString(value.ToString()))));
#endregion
#region ge
case ExpressionOperators.Ge:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return(NumericRangeQuery.NewIntRange(exp.PropertyName, (int)exp.Value, maxSupportedIntValue, true, true));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return(NumericRangeQuery.NewLongRange(exp.PropertyName, (long)exp.Value, maxSupportedLongValue, true, true));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return(NumericRangeQuery.NewFloatRange(exp.PropertyName, (float)exp.Value, maxSupportedFloatValue, true, true));
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return(NumericRangeQuery.NewDoubleRange(exp.PropertyName, (double)exp.Value, double.MaxValue, true, true));
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(startTime);
return(NumericRangeQuery.NewLongRange(exp.PropertyName, end, maxSupportedLongValue, true, true));
}
return(new TermRangeQuery(exp.PropertyName, PrepareValueString(exp.Value.ToString()), null, true, true));
#endregion
#region gt
case ExpressionOperators.Gt:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return(NumericRangeQuery.NewIntRange(exp.PropertyName, (int)exp.Value, maxSupportedIntValue, false, false));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return(NumericRangeQuery.NewLongRange(exp.PropertyName, (long)exp.Value, maxSupportedLongValue, false, false));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return(NumericRangeQuery.NewFloatRange(exp.PropertyName, (float)exp.Value, maxSupportedFloatValue, false, false));
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return(NumericRangeQuery.NewDoubleRange(exp.PropertyName, (double)exp.Value, double.MaxValue, false, false));
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(startTime);
return(NumericRangeQuery.NewLongRange(exp.PropertyName, end, maxSupportedLongValue, false, false));
}
return(new TermRangeQuery(exp.PropertyName, PrepareValueString(exp.Value.ToString()), null, false, false));
#endregion
#region le
case ExpressionOperators.Le:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return(NumericRangeQuery.NewIntRange(exp.PropertyName, minSupportedIntValue, (int)exp.Value, true, true));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return(NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedLongValue, (long)exp.Value, true, true));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return(NumericRangeQuery.NewFloatRange(exp.PropertyName, minSupportedFloatValue, (float)exp.Value, true, true));
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return(NumericRangeQuery.NewDoubleRange(exp.PropertyName, double.MinValue, (double)exp.Value, true, true));
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string endTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(endTime);
return(NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedDateNum, end, true, true));
}
return(new TermRangeQuery(exp.PropertyName, null, PrepareValueString(exp.Value.ToString()), true, true));
#endregion
#region lt
case ExpressionOperators.Lt:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return(NumericRangeQuery.NewIntRange(exp.PropertyName, minSupportedIntValue, (int)exp.Value, false, false));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return(NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedLongValue, (long)exp.Value, false, false));
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return(NumericRangeQuery.NewFloatRange(exp.PropertyName, minSupportedFloatValue, (float)exp.Value, false, false));
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return(NumericRangeQuery.NewDoubleRange(exp.PropertyName, double.MinValue, (double)exp.Value, false, false));
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(startTime);
return(NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedDateNum, end, false, false));
}
return(new TermRangeQuery(exp.PropertyName, null, PrepareValueString(exp.Value.ToString()), false, false));
#endregion
#region noteq
case ExpressionOperators.NotEq:
object value1 = exp.Value;
if (value1 is bool)
{
if ((bool)value1)
{
value1 = SysDefinition.DATA_TYPE_BOOL_TRUE;
}
else
{
value1 = SysDefinition.DATA_TYPE_BOOL_FALSE;
}
}
if (value1 is DateTime)
{
value1 = DateTools.DateToString((DateTime)value1, DateTools.Resolution.MINUTE);
}
var bq = new BooleanQuery();
bq.Add(new BooleanClause(new TermQuery(new Term(exp.PropertyName, PrepareValueString(value1.ToString()))),
BooleanClause.Occur.MUST_NOT));
return(bq);
#endregion
#region between
case ExpressionOperators.Between:
int precisionStep = 4;
if (exp.Value4 is int)
{
precisionStep = (int)exp.Value4;
}
switch (exp.Value3 is RangeType ? (RangeType)exp.Value3 : (RangeType)0)
{
case RangeType.INT:
return(NumericRangeQuery.NewIntRange(exp.PropertyName, precisionStep, (int)exp.Value, (int)exp.Value1, (bool)exp.Value2,
(bool)exp.Value2));
case RangeType.LONG:
return(NumericRangeQuery.NewLongRange(exp.PropertyName, precisionStep, (long)exp.Value, (long)exp.Value1, (bool)exp.Value2,
(bool)exp.Value2));
case RangeType.FLOAT:
return(NumericRangeQuery.NewFloatRange(exp.PropertyName, precisionStep, (float)exp.Value, (float)exp.Value1, (bool)exp.Value2,
(bool)exp.Value2));
case RangeType.DOUBLE:
return(NumericRangeQuery.NewDoubleRange(exp.PropertyName, precisionStep, (double)exp.Value, (double)exp.Value1,
(bool)exp.Value2, (bool)exp.Value2));
case RangeType.DATETIME:
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
string endTime = DateTools.DateToString((DateTime)exp.Value1, DateTools.Resolution.MINUTE);
long start = long.Parse(startTime);
long end = long.Parse(endTime);
return(NumericRangeQuery.NewLongRange(exp.PropertyName, precisionStep, start, end, (bool)exp.Value2, (bool)exp.Value2));
default:
{
return(new TermRangeQuery(exp.PropertyName, PrepareValueString(exp.Value.ToString()),
PrepareValueString(exp.Value1.ToString()), (bool)exp.Value2,
(bool)exp.Value2));
}
}
#endregion
case ExpressionOperators.Like:
int prefixLength = 0;
float similarity = 0.5f;
if (exp.Value4 is float)
{
similarity = (float)exp.Value4;
}
var boolQuery = new BooleanQuery();
var wildQuery = new WildcardQuery(new Term(exp.PropertyName, PrepareValueString("*" + exp.Value + "*")));
boolQuery.Add(wildQuery, BooleanClause.Occur.SHOULD);
boolQuery.Add(new FuzzyQuery(new Term(exp.PropertyName, PrepareValueString(exp.Value.ToString())), similarity), BooleanClause.Occur.SHOULD);
return(boolQuery);
case ExpressionOperators.Fuzzy:
similarity = 0.9f;
if (exp.Value4 is float)
{
similarity = (float)exp.Value4;
}
prefixLength = 0;
if (exp.Value3 is int)
{
prefixLength = (int)exp.Value3;
}
return(new FuzzyQuery(new Term(exp.PropertyName, PrepareValueString(exp.Value.ToString())), similarity, prefixLength));
// case ExpressionOperators.IsEmpty:
// return new TermQuery(new Term(exp.PropertyName, SysDefinition.DATA_TYPE_NULL_OR_EMPTY));
//
// case ExpressionOperators.IsNotEmpty:
// var bq2 = new BooleanQuery();
// bq2.Add(new BooleanClause(new TermQuery(new Term(exp.PropertyName, SysDefinition.DATA_TYPE_NULL_OR_EMPTY)),
// BooleanClause.Occur.MUST_NOT));
// return bq2;
case ExpressionOperators.StartsWith:
return(new PrefixQuery(new Term(exp.PropertyName, PrepareValueString(exp.Value.ToString()))));
case ExpressionOperators.EndWith:
return(new WildcardQuery(new Term(exp.PropertyName, PrepareValueString("*" + exp.Value))));
case ExpressionOperators.Contains:
return(new WildcardQuery(new Term(exp.PropertyName, PrepareValueString("*" + exp.Value + "*"))));
default:
throw new ArgumentOutOfRangeException();
}
}
/// <summary>
/// 构造一个And条件语句
/// </summary>
/// <param name="expl">条件语句</param>
/// <returns></returns>
public Conditional And(ExpressionEx expl)
{
if (_queryExpression.Clauses().Count == 0)
{
if (expl.ExpressionOperator == ExpressionOperators.NotEq
//||expl.ExpressionOperator == ExpressionOperators.IsNotEmpty
)
{
throw new QueryException("第一个条件不允许为NOT类型");
}
}
Query bq = Convert(expl);
if (bq is BooleanQuery)
{
foreach (object variable in ((BooleanQuery)bq).Clauses())
{
_queryExpression.Clauses().Add(variable);
}
}
else
{
_queryExpression.Add(Convert(expl), BooleanClause.Occur.MUST);
}
return this;
}
/// <summary>
/// 构造一个条件语句
/// </summary>
/// <param name="exp">条件表达式</param>
/// <returns>条件语句</returns>
public static Conditional Get(ExpressionEx exp)
{
Query bq = Convert(exp);
return Get(bq);
}
private static Query Convert(ExpressionEx exp)
{
#region TODO 参数设置
int maxSupportedIntValue = int.MaxValue;
int minSupportedIntValue = int.MinValue;
long minSupportedLongValue = long.MinValue;
long maxSupportedLongValue = long.MaxValue;
float minSupportedFloatValue = float.MinValue;
float maxSupportedFloatValue = float.MaxValue;
long minSupportedDateNum = 000000000000;
#endregion
switch (exp.ExpressionOperator)
{
#region eq
case ExpressionOperators.Eq:
object value = exp.Value;
#region
//if (value is bool)
//{
// if((bool)value)
// { value = SysDefinition.DATA_TYPE_BOOL_TRUE; }
// else
// { value = SysDefinition.DATA_TYPE_BOOL_FALSE; }
//}
#endregion
if (value is DateTime)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
return new TermQuery(new Term(exp.PropertyName, startTime));
}
return new TermQuery(new Term(exp.PropertyName, PrepareValueString(value.ToString())));
#endregion
#region ge
case ExpressionOperators.Ge:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return NumericRangeQuery.NewIntRange(exp.PropertyName, (int)exp.Value, maxSupportedIntValue, true, true);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return NumericRangeQuery.NewLongRange(exp.PropertyName, (long)exp.Value, maxSupportedLongValue, true, true);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return NumericRangeQuery.NewFloatRange(exp.PropertyName, (float)exp.Value, maxSupportedFloatValue, true, true);
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return NumericRangeQuery.NewDoubleRange(exp.PropertyName, (double)exp.Value, double.MaxValue, true, true);
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(startTime);
return NumericRangeQuery.NewLongRange(exp.PropertyName, end, maxSupportedLongValue, true, true);
}
return new TermRangeQuery(exp.PropertyName, PrepareValueString(exp.Value.ToString()), null, true, true);
#endregion
#region gt
case ExpressionOperators.Gt:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return NumericRangeQuery.NewIntRange(exp.PropertyName, (int)exp.Value, maxSupportedIntValue, false, false);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return NumericRangeQuery.NewLongRange(exp.PropertyName, (long)exp.Value, maxSupportedLongValue, false, false);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return NumericRangeQuery.NewFloatRange(exp.PropertyName, (float)exp.Value, maxSupportedFloatValue, false, false);
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return NumericRangeQuery.NewDoubleRange(exp.PropertyName, (double)exp.Value, double.MaxValue, false, false);
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(startTime);
return NumericRangeQuery.NewLongRange(exp.PropertyName, end, maxSupportedLongValue, false, false);
}
return new TermRangeQuery(exp.PropertyName, PrepareValueString(exp.Value.ToString()), null, false, false);
#endregion
#region le
case ExpressionOperators.Le:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return NumericRangeQuery.NewIntRange(exp.PropertyName, minSupportedIntValue, (int)exp.Value, true, true);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedLongValue, (long)exp.Value, true, true);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return NumericRangeQuery.NewFloatRange(exp.PropertyName, minSupportedFloatValue, (float)exp.Value, true, true);
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return NumericRangeQuery.NewDoubleRange(exp.PropertyName, double.MinValue, (double)exp.Value, true, true);
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string endTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(endTime);
return NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedDateNum, end, true, true);
}
return new TermRangeQuery(exp.PropertyName, null, PrepareValueString(exp.Value.ToString()), true, true);
#endregion
#region lt
case ExpressionOperators.Lt:
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.INT)
{
return NumericRangeQuery.NewIntRange(exp.PropertyName, minSupportedIntValue, (int)exp.Value, false, false);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.LONG)
{
return NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedLongValue, (long)exp.Value, false, false);
}
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.FLOAT)
{
return NumericRangeQuery.NewFloatRange(exp.PropertyName, minSupportedFloatValue, (float)exp.Value, false, false);
}
#region
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DOUBLE)
{
return NumericRangeQuery.NewDoubleRange(exp.PropertyName, double.MinValue, (double)exp.Value, false, false);
}
#endregion
if (exp.Value1 is RangeType && (RangeType)exp.Value1 == RangeType.DATETIME)
{
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
long end = long.Parse(startTime);
return NumericRangeQuery.NewLongRange(exp.PropertyName, minSupportedDateNum, end, false, false);
}
return new TermRangeQuery(exp.PropertyName, null, PrepareValueString(exp.Value.ToString()), false, false);
#endregion
#region noteq
case ExpressionOperators.NotEq:
object value1 = exp.Value;
if (value1 is bool)
{
if ((bool)value1)
{
value1 = SysDefinition.DATA_TYPE_BOOL_TRUE;
}
else
{
value1 = SysDefinition.DATA_TYPE_BOOL_FALSE;
}
}
if (value1 is DateTime)
{
value1 = DateTools.DateToString((DateTime)value1, DateTools.Resolution.MINUTE);
}
var bq = new BooleanQuery();
bq.Add(new BooleanClause(new TermQuery(new Term(exp.PropertyName, PrepareValueString(value1.ToString()))),
BooleanClause.Occur.MUST_NOT));
return bq;
#endregion
#region between
case ExpressionOperators.Between:
int precisionStep = 4;
if (exp.Value4 is int)
{
precisionStep = (int)exp.Value4;
}
switch (exp.Value3 is RangeType ? (RangeType)exp.Value3 : (RangeType)0)
{
case RangeType.INT:
return NumericRangeQuery.NewIntRange(exp.PropertyName, precisionStep, (int)exp.Value, (int)exp.Value1, (bool)exp.Value2,
(bool)exp.Value2);
case RangeType.LONG:
return NumericRangeQuery.NewLongRange(exp.PropertyName, precisionStep, (long)exp.Value, (long)exp.Value1, (bool)exp.Value2,
(bool)exp.Value2);
case RangeType.FLOAT:
return NumericRangeQuery.NewFloatRange(exp.PropertyName, precisionStep, (float)exp.Value, (float)exp.Value1, (bool)exp.Value2,
(bool)exp.Value2);
case RangeType.DOUBLE:
return NumericRangeQuery.NewDoubleRange(exp.PropertyName, precisionStep, (double)exp.Value, (double)exp.Value1,
(bool)exp.Value2, (bool)exp.Value2);
case RangeType.DATETIME:
string startTime = DateTools.DateToString((DateTime)exp.Value, DateTools.Resolution.MINUTE);
string endTime = DateTools.DateToString((DateTime)exp.Value1, DateTools.Resolution.MINUTE);
long start = long.Parse(startTime);
long end = long.Parse(endTime);
return NumericRangeQuery.NewLongRange(exp.PropertyName, precisionStep, start, end, (bool)exp.Value2, (bool)exp.Value2);
default:
{
return new TermRangeQuery(exp.PropertyName, PrepareValueString(exp.Value.ToString()),
PrepareValueString(exp.Value1.ToString()), (bool)exp.Value2,
(bool)exp.Value2);
}
}
#endregion
case ExpressionOperators.Like:
int prefixLength = 0;
float similarity = 0.5f;
if (exp.Value4 is float)
{
similarity = (float)exp.Value4;
}
var boolQuery = new BooleanQuery();
var wildQuery = new WildcardQuery(new Term(exp.PropertyName, PrepareValueString("*" + exp.Value + "*")));
boolQuery.Add(wildQuery, BooleanClause.Occur.SHOULD);
boolQuery.Add(new FuzzyQuery(new Term(exp.PropertyName, PrepareValueString(exp.Value.ToString())), similarity), BooleanClause.Occur.SHOULD);
return boolQuery;
case ExpressionOperators.Fuzzy:
similarity = 0.9f;
if (exp.Value4 is float)
{
similarity = (float)exp.Value4;
}
prefixLength = 0;
if (exp.Value3 is int)
{
prefixLength = (int)exp.Value3;
}
return new FuzzyQuery(new Term(exp.PropertyName, PrepareValueString(exp.Value.ToString())), similarity, prefixLength);
// case ExpressionOperators.IsEmpty:
// return new TermQuery(new Term(exp.PropertyName, SysDefinition.DATA_TYPE_NULL_OR_EMPTY));
//
// case ExpressionOperators.IsNotEmpty:
// var bq2 = new BooleanQuery();
// bq2.Add(new BooleanClause(new TermQuery(new Term(exp.PropertyName, SysDefinition.DATA_TYPE_NULL_OR_EMPTY)),
// BooleanClause.Occur.MUST_NOT));
// return bq2;
case ExpressionOperators.StartsWith:
return new PrefixQuery(new Term(exp.PropertyName, PrepareValueString(exp.Value.ToString())));
case ExpressionOperators.EndWith:
return new WildcardQuery(new Term(exp.PropertyName, PrepareValueString("*" + exp.Value)));
case ExpressionOperators.Contains:
return new WildcardQuery(new Term(exp.PropertyName, PrepareValueString("*" + exp.Value + "*")));
default:
throw new ArgumentOutOfRangeException();
}
}
/// <summary>
/// 构造一个And条件语句
/// </summary>
/// <param name="expl">左边条件表达式</param>
/// <param name="expr">右边条件表达式</param>
/// <param name="expList">右边条件表达式</param>
/// <returns>条件语句</returns>
public static Conditional And(ExpressionEx expl, ExpressionEx expr, params ExpressionEx[] expList)
{
var conditional = new Conditional();
var booleanQuery = new BooleanQuery();
booleanQuery.Add(Convert(expl), BooleanClause.Occur.MUST);
booleanQuery.Add(Convert(expr), BooleanClause.Occur.MUST);
foreach (ExpressionEx ex in expList)
{
booleanQuery.Add(Convert(ex), BooleanClause.Occur.MUST);
}
conditional._queryExpression = booleanQuery;
return conditional;
}
/// <summary>
/// 小于条件表达式
/// </summary>
/// <param name="propertyName">属性名称</param>
/// <param name="value">表达式右边的值</param>
/// <returns>一个表达式实例</returns>
public static ExpressionEx Lt(string propertyName, float value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.FLOAT,
ExpressionOperator = ExpressionOperators.Lt
};
return exp;
}
public static ExpressionEx Gt(string propertyName, long value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.LONG,
ExpressionOperator = ExpressionOperators.Gt
};
return exp;
}
public static ExpressionEx Lt(string propertyName, double value)
{
var exp = new ExpressionEx
{
PropertyName = propertyName,
Value = value,
Value1 = RangeType.DOUBLE,
ExpressionOperator = ExpressionOperators.Lt
};
return exp;
}
public int Count(string index, string type, ExpressionEx expression)
{
return Count(index, type, Conditional.Get(expression).Query);
}
public Conditional Or(ExpressionEx expl)
{
var conditional = new Conditional();
conditional._queryExpression.Add(_queryExpression, BooleanClause.Occur.SHOULD);
conditional._queryExpression.Add(Convert(expl), BooleanClause.Occur.SHOULD);
return conditional;
}
