/// <summary>
/// Initializes a new <see cref="MongoDBMessageQueueingService"/>
/// </summary>
/// <param name="options">Options governing the behavior of the service</param>
/// <exception cref="ArgumentNullException">
/// Thrown if <paramref name="options"/> is <c>null</c>
/// </exception>
public MongoDBMessageQueueingService(MongoDBMessageQueueingOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
_diagnosticService = options.DiagnosticService ?? DiagnosticService.DefaultInstance;
_database = options.Database;
_collectionNameFactory = options.CollectionNameFactory ?? (_ => DefaultCollectionName);
_securityTokenService = options.SecurityTokenService ?? new JwtSecurityTokenService();
_messageEncryptionService = options.MessageEncryptionService;
}
/// <inheritdoc />
public async Task <IMessageQueueingService> CreateMessageQueueingService(QueueingElement configuration)
{
var connectionName = configuration.GetString("connectionName");
if (string.IsNullOrWhiteSpace(connectionName))
{
throw new ConfigurationErrorsException(
"Attribute 'connectionName' is required for MongoDB message queueing service");
}
QueueCollectionNameFactory collectionNameFactory = null;
var databaseName = configuration.GetString("database");
var collectionName = configuration.GetString("collection");
var collectionPerQueue = configuration.GetBool("collectionPerQueue") ?? false;
if (!string.IsNullOrWhiteSpace(collectionName))
{
collectionNameFactory = _ => collectionName;
}
else if (collectionPerQueue)
{
var collectionPrefix = (configuration.GetString("collectionPrefix") ?? "").Trim();
collectionNameFactory = queueName => (collectionPrefix + queueName).Trim();
}
var connectionStringSettings = ConfigurationManager.ConnectionStrings[connectionName];
if (connectionStringSettings == null)
{
throw new ConfigurationErrorsException("Connection string settings \"" + connectionName + "\" not found");
}
var securityTokenServiceFactory = new SecurityTokenServiceFactory();
var securitTokenConfig = configuration.SecurityTokens;
var securityTokenService = await securityTokenServiceFactory.InitSecurityTokenService(securitTokenConfig);
var messageEncrytionServiceFactory = new MessageEncryptionServiceFactory();
var encryptionSection = configuration.Encryption;
var messageEncryptionService = await messageEncrytionServiceFactory.InitMessageEncryptionService(encryptionSection);
var database = MongoDBHelper.Connect(connectionStringSettings, databaseName);
var queueingOptions = new MongoDBMessageQueueingOptions(database)
{
CollectionNameFactory = collectionNameFactory,
SecurityTokenService = securityTokenService,
MessageEncryptionService = messageEncryptionService
};
var messageQueueingService = new MongoDBMessageQueueingService(queueingOptions);
return(messageQueueingService);
}