Created IConfigurationManager

MediaBrowser.Common/Configuration/ConfigurationHelper.cs

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+using MediaBrowser.Model.Serialization;
+using System;
+using System.IO;
+using System.Linq;
+
+namespace MediaBrowser.Common.Configuration
+{
+    /// <summary>
+    /// Class ConfigurationHelper
+    /// </summary>
+    public static class ConfigurationHelper
+    {
+        /// <summary>
+        /// Reads an xml configuration file from the file system
+        /// It will immediately re-serialize and save if new serialization data is available due to property changes
+        /// </summary>
+        /// <param name="type">The type.</param>
+        /// <param name="path">The path.</param>
+        /// <param name="xmlSerializer">The XML serializer.</param>
+        /// <returns>System.Object.</returns>
+        public static object GetXmlConfiguration(Type type, string path, IXmlSerializer xmlSerializer)
+        {
+            object configuration;
+
+            byte[] buffer = null;
+
+            // Use try/catch to avoid the extra file system lookup using File.Exists
+            try
+            {
+                buffer = File.ReadAllBytes(path);
+
+                configuration = xmlSerializer.DeserializeFromBytes(type, buffer);
+            }
+            catch (FileNotFoundException)
+            {
+                configuration = Activator.CreateInstance(type);
+            }
+
+            // Take the object we just got and serialize it back to bytes
+            var newBytes = xmlSerializer.SerializeToBytes(configuration);
+
+            // If the file didn't exist before, or if something has changed, re-save
+            if (buffer == null || !buffer.SequenceEqual(newBytes))
+            {
+                // Save it after load in case we got new items
+                File.WriteAllBytes(path, newBytes);
+            }
+
+            return configuration;
+        }
+
+
+        /// <summary>
+        /// Reads an xml configuration file from the file system
+        /// It will immediately save the configuration after loading it, just
+        /// in case there are new serializable properties
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="path">The path.</param>
+        /// <param name="xmlSerializer">The XML serializer.</param>
+        /// <returns>``0.</returns>
+        public static T GetXmlConfiguration<T>(string path, IXmlSerializer xmlSerializer)
+            where T : class
+        {
+            return GetXmlConfiguration(typeof(T), path, xmlSerializer) as T;
+        }
+    }
+}

MediaBrowser.Common/Configuration/IApplicationPaths.cs

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+
+namespace MediaBrowser.Common.Configuration
+{
+    /// <summary>
+    /// Interface IApplicationPaths
+    /// </summary>
+    public interface IApplicationPaths
+    {
+        /// <summary>
+        /// Gets the path to the program data folder
+        /// </summary>
+        /// <value>The program data path.</value>
+        string ProgramDataPath { get; }
+
+        /// <summary>
+        /// Gets the path to the program system folder
+        /// </summary>
+        /// <value>The program data path.</value>
+        string ProgramSystemPath { get; }
+
+        /// <summary>
+        /// Gets the folder path to the data directory
+        /// </summary>
+        /// <value>The data directory.</value>
+        string DataPath { get; }
+
+        /// <summary>
+        /// Gets the image cache path.
+        /// </summary>
+        /// <value>The image cache path.</value>
+        string ImageCachePath { get; }
+
+        /// <summary>
+        /// Gets the path to the plugin directory
+        /// </summary>
+        /// <value>The plugins path.</value>
+        string PluginsPath { get; }
+
+        /// <summary>
+        /// Gets the path to the plugin configurations directory
+        /// </summary>
+        /// <value>The plugin configurations path.</value>
+        string PluginConfigurationsPath { get; }
+
+        /// <summary>
+        /// Gets the path to where temporary update files will be stored
+        /// </summary>
+        /// <value>The plugin configurations path.</value>
+        string TempUpdatePath { get; }
+
+        /// <summary>
+        /// Gets the path to the log directory
+        /// </summary>
+        /// <value>The log directory path.</value>
+        string LogDirectoryPath { get; }
+
+        /// <summary>
+        /// Gets the path to the application configuration root directory
+        /// </summary>
+        /// <value>The configuration directory path.</value>
+        string ConfigurationDirectoryPath { get; }
+
+        /// <summary>
+        /// Gets the path to the system configuration file
+        /// </summary>
+        /// <value>The system configuration file path.</value>
+        string SystemConfigurationFilePath { get; }
+
+        /// <summary>
+        /// Gets the folder path to the cache directory
+        /// </summary>
+        /// <value>The cache directory.</value>
+        string CachePath { get; }
+
+        /// <summary>
+        /// Gets the folder path to the temp directory within the cache folder
+        /// </summary>
+        /// <value>The temp directory.</value>
+        string TempDirectory { get; }
+    }
+
+}

MediaBrowser.Common/Configuration/IConfigurationManager.cs

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+using MediaBrowser.Model.Configuration;
+using System;
+
+namespace MediaBrowser.Common.Configuration
+{
+    public interface IConfigurationManager
+    {
+        /// <summary>
+        /// Occurs when [configuration updated].
+        /// </summary>
+        event EventHandler<EventArgs> ConfigurationUpdated;
+        
+        /// <summary>
+        /// Gets or sets the application paths.
+        /// </summary>
+        /// <value>The application paths.</value>
+        IApplicationPaths CommonApplicationPaths { get; }
+
+        /// <summary>
+        /// Gets the configuration.
+        /// </summary>
+        /// <value>The configuration.</value>
+        BaseApplicationConfiguration CommonConfiguration { get; }
+
+        /// <summary>
+        /// Saves the configuration.
+        /// </summary>
+        void SaveConfiguration();
+
+        /// <summary>
+        /// Replaces the configuration.
+        /// </summary>
+        /// <param name="newConfiguration">The new configuration.</param>
+        void ReplaceConfiguration(BaseApplicationConfiguration newConfiguration);
+    }
+}