/* * Copyright (c) Contributors, http://opensimulator.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; namespace OpenSim.Framework.Configuration.XML { public class XmlConfiguration : IGenericConfig { private XmlDocument doc; private XmlNode rootNode; private XmlNode configNode; private string fileName; private bool createdFile = false; public void SetFileName(string file) { fileName = file; } private void LoadDataToClass() { rootNode = doc.SelectSingleNode("Root"); if (null == rootNode) throw new Exception("Error: Invalid .xml File. Missing <Root>"); configNode = rootNode.SelectSingleNode("Config"); if (null == configNode) throw new Exception("Error: Invalid .xml File. <Root> should contain a <Config>"); } public void LoadData() { lock (this) { 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", String.Empty); doc.AppendChild(rootNode); configNode = doc.CreateNode(XmlNodeType.Element, "Config", String.Empty); rootNode.AppendChild(configNode); } LoadDataToClass(); if (createdFile) { Commit(); } } } public void LoadDataFromString(string data) { doc = new XmlDocument(); doc.LoadXml(data); LoadDataToClass(); } 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() { if (fileName == null || fileName == String.Empty) return; if (!Directory.Exists(Util.configDir())) { Directory.CreateDirectory(Util.configDir()); } doc.Save(fileName); } public void Close() { configNode = null; rootNode = null; doc = null; } } }