#region Copyright(c) Alexey Sadomov, Vladimir Timashkov. All Rights Reserved.
// -----------------------------------------------------------------------------
// Copyright(c) 2010 Alexey Sadomov, Vladimir Timashkov. All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. No Trademark License - Microsoft Public License (Ms-PL) does not grant you rights to use
// authors names, logos, or trademarks.
// 2. If you distribute any portion of the software, you must retain all copyright,
// patent, trademark, and attribution notices that are present in the software.
// 3. If you distribute any portion of the software in source code form, you may do
// so only under this license by including a complete copy of Microsoft Public License (Ms-PL)
// with your distribution. If you distribute any portion of the software in compiled
// or object code form, you may only do so under a license that complies with
// Microsoft Public License (Ms-PL).
// 4. The names of the authors may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// The software is licensed "as-is." You bear the risk of using it. The authors
// give no express warranties, guarantees or conditions. You may have additional consumer
// rights under your local laws which this license cannot change. To the extent permitted
// under your local laws, the authors exclude the implied warranties of merchantability,
// fitness for a particular purpose and non-infringement.
// -----------------------------------------------------------------------------
#endregion
using System.Linq;
using System.Xml.Linq;
using CamlexNET.Impl.Operands;
using CamlexNET.Impl.Operations.DateRangesOverlap;
using CamlexNET.Interfaces;
using CamlexNET.Interfaces.ReverseEngeneering;
namespace CamlexNET.Impl.ReverseEngeneering.Caml.Analyzers
{
internal class ReDateRangesOverlapAnalyzer : ReBaseAnalyzer
{
public ReDateRangesOverlapAnalyzer(XElement el, IReOperandBuilder operandBuilder)
: base(el, operandBuilder)
{
}
public override bool IsValid()
{
if (!base.IsValid())
{
return false;
}
if (el.Attributes().Count() > 0)
{
return false;
}
if (!this.hasValidFieldRefElements())
{
return false;
}
if (!this.hasValidValueElement())
{
return false;
}
return true;
}
protected bool hasValidFieldRefElements()
{
if (el.Elements(Tags.FieldRef).Count() != 3) return false;
var result = true;
el.Elements(Tags.FieldRef).ToList().ToList().ForEach(fieldRefElement =>
{
var isIdOrNamePresent = fieldRefElement.Attributes()
.Any(a => a.Name == Attributes.ID || a.Name == Attributes.Name);
if (!isIdOrNamePresent) result = false;
});
return result;
}
protected bool hasValidValueElement()
{
if (el.Elements(Tags.Value).Count() != 1)
{
return false;
}
var valueElement = el.Elements(Tags.Value).First();
var typeAttribute = valueElement.Attributes()
.Where(a => a.Name == Attributes.Type).FirstOrDefault();
if (typeAttribute == null)
{
return false;
}
if (typeAttribute.Value != typeof (DataTypes.DateTime).Name)
{
return false;
}
if (string.IsNullOrEmpty(valueElement.Value) && valueElement.Elements().Count() != 1)
{
return false;
}
try
{
if (!string.IsNullOrEmpty(valueElement.Value))
{
new DateTimeValueOperand(valueElement.Value, false);
}
else if (valueElement.Elements().Count() == 1)
{
new DateTimeValueOperand(valueElement.Elements().First().Name.ToString(), false);
}
}
catch (InvalidValueForOperandTypeException)
{
return false;
}
return true;
}
public override IOperation GetOperation()
{
if (!this.IsValid())
{
throw new CamlAnalysisException(string.Format(
"Can't create {0} from the following xml: {1}", typeof (DateRangesOverlapOperation).Name, el));
}
var startFieldRefElement = el.Elements(Tags.FieldRef).First();
var stopFieldRefElement = el.Elements(Tags.FieldRef).Skip(1).First();
var recurrenceFieldRefElement = el.Elements(Tags.FieldRef).Skip(2).First();
var startFieldRefOperand = operandBuilder.CreateFieldRefOperand(startFieldRefElement);
var stopFieldRefOperand = operandBuilder.CreateFieldRefOperand(stopFieldRefElement);
var recurrenceFieldRefOperand = operandBuilder.CreateFieldRefOperand(recurrenceFieldRefElement);
var valueOperand = operandBuilder.CreateValueOperand(el, false);
return new DateRangesOverlapOperation(null,
startFieldRefOperand, stopFieldRefOperand, recurrenceFieldRefOperand, valueOperand);
}
}
}