/BlogEngine/DotNetSlave.BusinessLogic/DataStore/StringDictionaryBehavior.cs

namespace BlogEngine.Core.DataStore

{

    using System.Collections;

    using System.Collections.Specialized;

    using System.Configuration;

    using System.IO;

    using System.Xml.Serialization;



    using BlogEngine.Core.Providers;



    /// <summary>

    /// The string dictionary behavior.

    /// </summary>

    internal class StringDictionaryBehavior : ISettingsBehavior

    {

        #region Constants and Fields



        /// <summary>

        /// The section.

        /// </summary>

        private static readonly BlogProviderSection Section =

            (BlogProviderSection)ConfigurationManager.GetSection("BlogEngine/blogProvider");



        #endregion



        #region Implemented Interfaces



        #region ISettingsBehavior



        /// <summary>

        /// Retreaves StringDictionary object from database or file system

        /// </summary>

        /// <param name="extensionType">

        /// Extension Type

        /// </param>

        /// <param name="extensionId">

        /// Extension Id

        /// </param>

        /// <returns>

        /// StringDictionary object as Stream

        /// </returns>

        public object GetSettings(ExtensionType extensionType, string extensionId)

        {

            SerializableStringDictionary ssd;

            var sd = new StringDictionary();

            var serializer = new XmlSerializer(typeof(SerializableStringDictionary));



            if (Section.DefaultProvider == "XmlBlogProvider")

            {

                var stm = (Stream)BlogService.LoadFromDataStore(extensionType, extensionId);

                if (stm != null)

                {

                    ssd = (SerializableStringDictionary)serializer.Deserialize(stm);

                    stm.Close();

                    sd = ssd;

                }

            }

            else

            {

                var o = BlogService.LoadFromDataStore(extensionType, extensionId);

                if (!string.IsNullOrEmpty((string)o))

                {

                    using (var reader = new StringReader((string)o))

                    {

                        ssd = (SerializableStringDictionary)serializer.Deserialize(reader);

                    }



                    sd = ssd;

                }

            }



            return sd;

        }



        /// <summary>

        /// Saves String Dictionary to Data Store

        /// </summary>

        /// <param name="extensionType">

        /// Extension Type

        /// </param>

        /// <param name="extensionId">

        /// Extension Id

        /// </param>

        /// <param name="settings">

        /// StringDictionary settings

        /// </param>

        /// <returns>

        /// The save settings.

        /// </returns>

        public bool SaveSettings(ExtensionType extensionType, string extensionId, object settings)

        {

            var sd = (StringDictionary)settings;

            var ssd = new SerializableStringDictionary();



            foreach (DictionaryEntry de in sd)

            {

                ssd.Add(de.Key.ToString(), de.Value.ToString());

            }



            BlogService.SaveToDataStore(extensionType, extensionId, ssd);

            return true;

        }



        #endregion



        #endregion

    }

}