#region License
//=============================================================================
// Vici Core - Productivity Library for .NET 3.5
//
// Copyright (c) 2008-2010 Philippe Leybaert
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//=============================================================================
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Xml.Linq;
using System.Xml.XPath;
namespace Vici.Core.Config{
public class ConfigurationProviderXmlConfig : IConfigurationProvider
{
private XDocument _xDoc;
private readonly string _filePath;
public ConfigurationProviderXmlConfig(string filePath)
{
if (!File.Exists(filePath))
throw new FileNotFoundException("Cofiguration file could not be found.");
_filePath = filePath;
}
public long Version()
{
return new FileInfo(_filePath).LastWriteTimeUtc.Ticks;
}
public bool CanSave
{
get { return false; }
}
public string GetValue(string key, string environment)
{
if (_xDoc == null)
ReloadConfigFile();
var xElement = _xDoc.XPathSelectElement("//" + key.Replace('.', '/'));
return xElement != null ? xElement.Value : null;
}
public void SetValue(string key, string value, string environment)
{
throw new NotSupportedException();
}
private void ReloadConfigFile()
{
try
{
_xDoc = XDocument.Load(_filePath);
}
catch (Exception err)
{
throw new FormatException("The XML of the configuration file could not be loaded.", err);
}
}
}
}
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