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.Text;
      11             : using EventStore.ClientAPI;
      12             : 
      13             : namespace Cqrs.EventStore.Bus
      14             : {
      15             :         /// <summary>
      16             :         /// A collection of utility functions.
      17             :         /// </summary>
      18             :         public static class EventStoreUtilities
      19           1 :         {
      20             :                 /// <summary>
      21             :                 /// Converts the provide <paramref name="position"/> into a string representation of itself.
      22             :                 /// </summary>
      23           1 :                 public static string PositionToFormattedString(Position position)
      24             :                 {
      25             :                         return position.CommitPosition + "/" + position.PreparePosition;
      26             :                 }
      27             : 
      28             :                 /// <summary>
      29             :                 /// Converts the provided <paramref name="formattedPosition">string representation</paramref> of a <see cref="Position"/> back into a <see cref="Position"/>.
      30             :                 /// </summary>
      31           1 :                 public static Position FormattedStringToPosition(string formattedPosition)
      32             :                 {
      33             :                         Position position = Position.End;
      34             : 
      35             :                         if (!string.IsNullOrEmpty(formattedPosition))
      36             :                         {
      37             :                                 string[] substrings = formattedPosition.Split('/');
      38             :                                 long commitPosition, preparePosition;
      39             :                                 if (long.TryParse(substrings[0], out commitPosition) &&
      40             :                                         long.TryParse(substrings[1], out preparePosition))
      41             :                                 {
      42             :                                         position = new Position(commitPosition, preparePosition);
      43             :                                 }
      44             :                                 else
      45             :                                 {
      46             :                                         throw new InvalidLastEventProcessedException(formattedPosition);
      47             :                                 }
      48             :                         }
      49             : 
      50             :                         return position;
      51             :                 }
      52             : 
      53             :                 /// <summary>
      54             :                 /// Converts the provided <paramref name="value"/> into a <see cref="byte"/> <see cref="Array"/>.
      55             :                 /// </summary>
      56           1 :                 public static byte[] StringToByteArray(string value)
      57             :                 {
      58             :                         byte[] rawEventData = Encoding.UTF8.GetBytes(value);
      59             :                         return rawEventData;
      60             :                 }
      61             : 
      62             :                 /// <summary>
      63             :                 /// Converts the provided <paramref name="value">byte array</paramref> into a string.
      64             :                 /// </summary>
      65           1 :                 public static string ByteArrayToString(byte[] value)
      66             :                 {
      67             :                         return Encoding.UTF8.GetString(value);
      68             :                 }
      69             :         }
      70             : }