/*
*
* (c) Copyright Ascensio System Limited 2010-2021
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
namespace ASC.ActiveDirectory.Base.Expressions;
///
/// Criteria
///
public class Criteria : ICloneable
{
private readonly CriteriaType _type;
private readonly List _expressions = new List();
private readonly List _nestedCriteras = new List();
///
/// Constructor
///
/// Type of critera
/// Expressions
public Criteria(CriteriaType type, params Expression[] expressions)
{
_expressions.AddRange(expressions);
_type = type;
}
///
/// Add nested expressions as And criteria
///
/// Expressions
/// Self
public Criteria And(params Expression[] expressions)
{
_nestedCriteras.Add(All(expressions));
return this;
}
///
/// Add nested expressions as Or criteria
///
/// Expressions
/// Self
public Criteria Or(params Expression[] expressions)
{
_nestedCriteras.Add(Any(expressions));
return this;
}
///
/// Add nested Criteria
///
///
/// себя
public Criteria Add(Criteria nested)
{
_nestedCriteras.Add(nested);
return this;
}
///
/// Criteria as a string
///
/// Criteria string
public override string ToString()
{
var criteria = "({0}{1}{2})";
var expressions = _expressions.Aggregate(string.Empty, (current, expr) => current + expr.ToString());
var criterias = _nestedCriteras.Aggregate(string.Empty, (current, crit) => current + crit.ToString());
return string.Format(criteria, _type == CriteriaType.And ? "&" : "|", expressions, criterias);
}
///
/// Group of Expression union as And
///
/// Expressions
/// new Criteria
public static Criteria All(params Expression[] expressions)
{
return new Criteria(CriteriaType.And, expressions);
}
///
/// Group of Expression union as Or
///
/// Expressions
/// new Criteria
public static Criteria Any(params Expression[] expressions)
{
return new Criteria(CriteriaType.Or, expressions);
}
#region ICloneable Members
///
/// ICloneable implemetation
///
/// Clone object
public object Clone()
{
var cr = new Criteria(_type);
foreach (var ex in _expressions)
{
cr._expressions.Add(ex.Clone() as Expression);
}
foreach (var nc in _nestedCriteras)
{
cr._nestedCriteras.Add(nc.Clone() as Criteria);
}
return cr;
}
#endregion
}