Line data    Source code

       1             : #region Copyright
       2             : // // -----------------------------------------------------------------------
       3             : // // <copyright company="Chinchilla Software Limited">
       4             : // //   Copyright Chinchilla Software Limited. All rights reserved.
       5             : // // </copyright>
       6             : // // -----------------------------------------------------------------------
       7             : #endregion
       8             : 
       9             : using System;
      10             : using System.IO;
      11             : using System.Runtime.Serialization;
      12             : using Cqrs.Events;
      13             : using Microsoft.WindowsAzure.Storage.Table;
      14             : using Newtonsoft.Json;
      15             : 
      16             : namespace Cqrs.Azure.BlobStorage
      17             : {
      18             :         /// <summary>
      19             :         /// A projection/entity especially designed to work with Azure Table storage.
      20             :         /// </summary>
      21             :         [Serializable]
      22             :         [DataContract]
      23             :         public abstract class TableEntity<TData>
      24             :                 : TableEntity
      25           1 :         {
      26             :                 /// <summary>
      27             :                 /// The default <see cref="JsonSerializerSettings"/> to use.
      28             :                 /// </summary>
      29             :                 public static JsonSerializerSettings DefaultSettings { get; private set; }
      30             : 
      31             :                 static TableEntity()
      32             :                 {
      33             :                         DefaultSettings = DefaultJsonSerializerSettings.DefaultSettings;
      34             :                 }
      35             : 
      36             :                 /// <summary>
      37             :                 /// Deserialise the provided <paramref name="json"/> from its <see cref="string"/> representation.
      38             :                 /// </summary>
      39             :                 /// <param name="json">A <see cref="string"/> representation of an <typeparamref name="TData"/> to deserialise.</param>
      40           1 :                 protected virtual TData Deserialise(string json)
      41             :                 {
      42             :                         using (var stringReader = new StringReader(json))
      43             :                         using (var jsonTextReader = new JsonTextReader(stringReader))
      44             :                                 return GetSerialiser().Deserialize<TData>(jsonTextReader);
      45             :                 }
      46             : 
      47             :                 /// <summary>
      48             :                 /// Serialise the provided <paramref name="data"/>.
      49             :                 /// </summary>
      50             :                 /// <param name="data">The <typeparamref name="TData"/> being serialised.</param>
      51             :                 /// <returns>A <see cref="string"/> representation of the provided <paramref name="data"/>.</returns>
      52           1 :                 protected virtual string Serialise(TData data)
      53             :                 {
      54             :                         string dataContent = JsonConvert.SerializeObject(data, GetSerialisationSettings());
      55             : 
      56             :                         return dataContent;
      57             :                 }
      58             : 
      59             :                 /// <summary>
      60             :                 /// Returns <see cref="DefaultSettings"/>
      61             :                 /// </summary>
      62             :                 /// <returns><see cref="DefaultSettings"/></returns>
      63           1 :                 protected virtual JsonSerializerSettings GetSerialisationSettings()
      64             :                 {
      65             :                         return DefaultSettings;
      66             :                 }
      67             : 
      68             :                 /// <summary>
      69             :                 /// Creates a new <see cref="JsonSerializer"/> using the settings from <see cref="GetSerialisationSettings"/>.
      70             :                 /// </summary>
      71             :                 /// <returns>A new instance of <see cref="JsonSerializer"/>.</returns>
      72           1 :                 protected virtual JsonSerializer GetSerialiser()
      73             :                 {
      74             :                         JsonSerializerSettings settings = GetSerialisationSettings();
      75             :                         return JsonSerializer.Create(settings);
      76             :                 }
      77             :         }
      78             : }