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/*
* Copyright (c) Contributors, http://www.openmetaverse.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
using System;
using System.IO;
using System.Xml;
using OpenSim.Framework.Interfaces;
namespace OpenSim.Framework.Configuration
{
public class XmlConfiguration : IGenericConfig
{
private XmlDocument doc;
private XmlNode rootNode;
private XmlNode configNode;
private string fileName;
private bool createdFile = false;
public XmlConfiguration(string filename)
{
fileName = filename;
}
public void LoadData()
{
doc = new XmlDocument();
if (File.Exists(fileName))
{
XmlTextReader reader = new XmlTextReader(fileName);
reader.WhitespaceHandling = WhitespaceHandling.None;
doc.Load(reader);
reader.Close();
}
else
{
createdFile = true;
rootNode = doc.CreateNode(XmlNodeType.Element, "Root", "");
doc.AppendChild(rootNode);
configNode = doc.CreateNode(XmlNodeType.Element, "Config", "");
rootNode.AppendChild(configNode);
}
rootNode = doc.FirstChild;
if (rootNode.Name != "Root")
throw new Exception("Error: Invalid .xml File. Missing <Root>");
configNode = rootNode.FirstChild;
if (configNode.Name != "Config")
throw new Exception("Error: Invalid .xml File. <Root> first child should be <Config>");
if (createdFile)
{
this.Commit();
}
}
public string GetAttribute(string attributeName)
{
string result = null;
if (configNode.Attributes[attributeName] != null)
{
result = ((XmlAttribute)configNode.Attributes.GetNamedItem(attributeName)).Value;
}
return result;
}
public bool SetAttribute(string attributeName, string attributeValue)
{
if (configNode.Attributes[attributeName] != null)
{
((XmlAttribute)configNode.Attributes.GetNamedItem(attributeName)).Value = attributeValue;
}
else
{
XmlAttribute attri;
attri = doc.CreateAttribute(attributeName);
attri.Value = attributeValue;
configNode.Attributes.Append(attri);
}
return true;
}
public void Commit()
{
doc.Save(fileName);
}
public void Close()
{
configNode = null;
rootNode = null;
doc = null;
}
}
}
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