galleryconfiguration.cs

本系统是在asp版《在线文件管理器》的基础上设计制作

//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------

using System.IO;
using System.Web.Caching;
using System.Xml;
using CommunityServer.Components;
using CommunityServer.Configuration;

namespace CommunityServer.Galleries.Components
{
	/// <summary>
	/// Summary description for GalleryConfiguration.
	/// </summary>
	public class GalleryConfiguration
	{

		#region Private Members

		private bool enableFileSystemStorage = false;
		private string fileSystemStorageLocation = "~/photos/storage";
		private string calculatedLocation = null;
		private bool enableThemes = true;
		private string defaultTemplate = "default";
		private bool enableSkinCache = true;
		private string themeLocation = "~/Themes/Galleries/";

		#endregion

		#region Public Properties

		public bool EnableFileSystemStorage
		{
			get { return enableFileSystemStorage; }
		}

		public string FileSystemStorageLocation
		{
			get { return fileSystemStorageLocation; }
		}

		public bool EnableThemes
		{
			get { return enableThemes; }
		}

		public string DefaultTemplate
		{
			get { return defaultTemplate; }
		}

		public bool EnableSkinCache
		{
			get { return enableSkinCache; }
		}

		public string ThemeLocation
		{
			get { return themeLocation; }
		}

		#endregion

		private GalleryConfiguration() {}

		#region Public Methods

		public string CalculateFileSystemStorageLocation()
		{
			if(calculatedLocation == null)
			{
				// Make sure it isn't a drive reference like "c:\blah" or a UNC name like "\\machine\share"
				if((fileSystemStorageLocation.IndexOf( ":\\" ) != -1) || (fileSystemStorageLocation.IndexOf( "\\\\" ) != -1))
					calculatedLocation = fileSystemStorageLocation;
				else
					calculatedLocation = CSContext.Current.MapPath( fileSystemStorageLocation );

				// Add the end directory separator if missing
				if(!calculatedLocation.EndsWith( Path.DirectorySeparatorChar.ToString() ))
					calculatedLocation += Path.DirectorySeparatorChar;
			}

			return calculatedLocation;
		}

		public string CalculatePictureFileSystemLocation(int settingsID, int sectionID, int pictureID)
		{
			return string.Format( "{0}{1}.{2}.{3}", CalculateFileSystemStorageLocation(), settingsID, sectionID, pictureID );
		}

		#endregion

		#region Public Static Methods

		public static GalleryConfiguration Instance()
		{
			string cacheKey = "GalleryConfiguration";
			GalleryConfiguration config = CSCache.Get(cacheKey) as GalleryConfiguration;

			if(config == null)
			{
				XmlNode node = CSConfiguration.GetConfig().GetConfigSection("CommunityServer/Gallery");
				config = new GalleryConfiguration();

				if(node != null)
				{
					XmlAttributeCollection attributeCollection = node.Attributes;

					try { config.enableFileSystemStorage = bool.Parse( attributeCollection["enableFileSystemStorage"].Value ); }
					catch { config.enableFileSystemStorage = false; }

					config.fileSystemStorageLocation = attributeCollection["fileSystemStorageLocation"].Value;

					if(attributeCollection["enableThemes"] != null)
						config.enableThemes = bool.Parse(attributeCollection["enableThemes"].Value);

					if(attributeCollection["defaultTemplate"] != null)
						config.defaultTemplate = attributeCollection["defaultTemplate"].Value;

					if(attributeCollection["enableSkinCache"] != null)
						config.enableSkinCache = bool.Parse(attributeCollection["enableSkinCache"].Value);

					if(attributeCollection["themeLocation"] != null)
						config.themeLocation = attributeCollection["themeLocation"].Value;
				}

				CacheDependency dep = new CacheDependency(null, new string[]{CSConfiguration.CacheKey});
				CSCache.Insert(cacheKey, config, dep);
			}

			return config;
		}

		#endregion

	}
}