Line data    Source code

       1             : #region Copyright
       2             : // // -----------------------------------------------------------------------
       3             : // // <copyright company="cdmdotnet Limited">
       4             : // //   Copyright cdmdotnet Limited. All rights reserved.
       5             : // // </copyright>
       6             : // // -----------------------------------------------------------------------
       7             : #endregion
       8             : 
       9             : using System;
      10             : using System.Collections.Generic;
      11             : using System.Linq;
      12             : using Cqrs.Configuration;
      13             : using cdmdotnet.Logging;
      14             : 
      15             : namespace Cqrs.Azure.BlobStorage.Events
      16             : {
      17             :         public class BlobStorageEventStoreConnectionStringFactory : IBlobStorageStoreConnectionStringFactory
      18           0 :         {
      19             :                 public static string BlobStorageReadableEventStoreConnectionStringKey = "Cqrs.Azure.BlobStorage.EventStore.Read.ConnectionStringName";
      20             : 
      21             :                 public static string BlobStorageWritableEventStoreConnectionStringKey = "Cqrs.Azure.BlobStorage.EventStore.Write.ConnectionStringName";
      22             : 
      23             :                 public static string BlobStorageEventStoreConnectionStringKey = "Cqrs.Azure.BlobStorage.EventStore.ConnectionStringName";
      24             : 
      25             :                 public static string BlobStorageBaseContainerNameKey = "Cqrs.Azure.BlobStorage.EventStore.BaseContainerName";
      26             : 
      27             :                 protected IConfigurationManager ConfigurationManager { get; private set; }
      28             : 
      29             :                 protected ILogger Logger { get; private set; }
      30             : 
      31           0 :                 public BlobStorageEventStoreConnectionStringFactory(IConfigurationManager configurationManager, ILogger logger)
      32             :                 {
      33             :                         ConfigurationManager = configurationManager;
      34             :                         Logger = logger;
      35             :                 }
      36             : 
      37           0 :                 public virtual IEnumerable<string> GetWritableConnectionStrings()
      38             :                 {
      39             :                         Logger.LogDebug("Getting blob storage writable connection strings", "BlobStorageEventStoreConnectionStringFactory\\GetWritableConnectionStrings");
      40             :                         try
      41             :                         {
      42             :                                 var collection = new List<string> ();
      43             : 
      44             :                                 string blobStorageWritableEventStoreConnectionString = ConfigurationManager.GetSetting(BlobStorageWritableEventStoreConnectionStringKey);
      45             :                                 if (string.IsNullOrWhiteSpace(blobStorageWritableEventStoreConnectionString))
      46             :                                 {
      47             :                                         Logger.LogDebug(string.Format("No application setting named '{0}' in the configuration file.", BlobStorageWritableEventStoreConnectionStringKey), "BlobStorageEventStoreConnectionStringFactory\\GetWritableConnectionStrings");
      48             :                                         blobStorageWritableEventStoreConnectionString = ConfigurationManager.GetSetting(BlobStorageEventStoreConnectionStringKey);
      49             :                                 }
      50             : 
      51             :                                 int writeIndex = 1;
      52             :                                 while (!string.IsNullOrWhiteSpace(blobStorageWritableEventStoreConnectionString))
      53             :                                 {
      54             :                                         collection.Add(blobStorageWritableEventStoreConnectionString);
      55             : 
      56             :                                         blobStorageWritableEventStoreConnectionString = ConfigurationManager.GetSetting(string.Format("{0}.{1}", BlobStorageWritableEventStoreConnectionStringKey, writeIndex));
      57             : 
      58             :                                         writeIndex++;
      59             :                                 }
      60             : 
      61             :                                 if (!collection.Any())
      62             :                                         throw new NullReferenceException();
      63             : 
      64             :                                 return collection;
      65             :                         }
      66             :                         catch (NullReferenceException exception)
      67             :                         {
      68             :                                 throw new NullReferenceException(string.Format("No application settings named '{0}' was found in the configuration file with the cloud storage connection string.", BlobStorageEventStoreConnectionStringKey), exception);
      69             :                         }
      70             :                         finally
      71             :                         {
      72             :                                 Logger.LogDebug("Getting blob storage writable connection string... Done", "BlobStorageEventStoreConnectionStringFactory\\GetWritableConnectionStrings");
      73             :                         }
      74             :                 }
      75             : 
      76           0 :                 public virtual string GetReadableConnectionString()
      77             :                 {
      78             :                         Logger.LogDebug("Getting blob storage readable connection strings", "BlobStorageEventStoreConnectionStringFactory\\GetReadableConnectionStrings");
      79             :                         try
      80             :                         {
      81             :                                 string blobStorageWritableEventStoreConnectionString = ConfigurationManager.GetSetting(BlobStorageReadableEventStoreConnectionStringKey);
      82             :                                 if (string.IsNullOrWhiteSpace(blobStorageWritableEventStoreConnectionString))
      83             :                                 {
      84             :                                         Logger.LogDebug(string.Format("No application setting named '{0}' in the configuration file.", BlobStorageReadableEventStoreConnectionStringKey), "BlobStorageEventStoreConnectionStringFactory\\GetReadableConnectionStrings");
      85             :                                         blobStorageWritableEventStoreConnectionString = ConfigurationManager.GetSetting(BlobStorageEventStoreConnectionStringKey);
      86             :                                 }
      87             : 
      88             :                                 if (string.IsNullOrWhiteSpace(blobStorageWritableEventStoreConnectionString))
      89             :                                         throw new NullReferenceException();
      90             : 
      91             :                                 return blobStorageWritableEventStoreConnectionString;
      92             :                         }
      93             :                         catch (NullReferenceException exception)
      94             :                         {
      95             :                                 throw new NullReferenceException(string.Format("No application settings named '{0}' was found in the configuration file with the cloud storage connection string.", BlobStorageEventStoreConnectionStringKey), exception);
      96             :                         }
      97             :                         finally
      98             :                         {
      99             :                                 Logger.LogDebug("Getting blob storage readable connection string... Done", "BlobStorageEventStoreConnectionStringFactory\\GetReadableConnectionStrings");
     100             :                         }
     101             :                 }
     102             : 
     103           0 :                 public virtual string GetBaseContainerName()
     104             :                 {
     105             :                         Logger.LogDebug("Getting blob storage base container name", "BlobStorageEventStoreConnectionStringFactory\\GetBaseContainerName");
     106             :                         try
     107             :                         {
     108             :                                 string result = ConfigurationManager.GetSetting(BlobStorageBaseContainerNameKey);
     109             : 
     110             :                                 if (string.IsNullOrWhiteSpace(result))
     111             :                                         throw new NullReferenceException();
     112             : 
     113             :                                 return result;
     114             :                         }
     115             :                         catch (NullReferenceException exception)
     116             :                         {
     117             :                                 throw new NullReferenceException(string.Format("No application setting named '{0}' in the configuration file.", BlobStorageBaseContainerNameKey), exception);
     118             :                         }
     119             :                         finally
     120             :                         {
     121             :                                 Logger.LogDebug("Getting blob storage base container name... Done", "BlobStorageEventStoreConnectionStringFactory\\GetBaseContainerName");
     122             :                         }
     123             :                 }
     124             :         }
     125             : }