/// <summary>
/// Initializes a new <see cref="SQLMessageQueueingService"/> with the specified connection
/// string settings and dialect
/// </summary>
/// <param name="options">Options influencing the behavior of this service</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="options"/>
/// is <c>null</c></exception>
/// <remarks>
/// <para>If a SQL dialect is not specified, then one will be selected based on the
/// supplied connection string settings</para>
/// <para>If a security token service is not specified then a default implementation
/// based on unsigned JWTs will be used.</para>
/// </remarks>
/// <seealso cref="Platibus.Config.Extensibility.IMessageQueueingCommandBuildersProvider"/>
public SQLMessageQueueingService(SQLMessageQueueingOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
DiagnosticService = options.DiagnosticService ?? Diagnostics.DiagnosticService.DefaultInstance;
ConnectionProvider = options.ConnectionProvider;
CommandBuilders = options.CommandBuilders;
_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 SQL message queueing service");
}
var connectionStringSettings = ConfigurationManager.ConnectionStrings[connectionName];
if (connectionStringSettings == null)
{
throw new ConfigurationErrorsException($"Connection string settings \"{connectionName}\" not found");
}
var securityTokenServiceFactory = new SecurityTokenServiceFactory();
var securityTokenConfig = configuration.SecurityTokens;
var securityTokenService = await securityTokenServiceFactory.InitSecurityTokenService(securityTokenConfig);
var messageEncryptionServiceFactory = new MessageEncryptionServiceFactory();
var messageEncryptionConfig = configuration.Encryption;
var messageEncryptionService = await messageEncryptionServiceFactory.InitMessageEncryptionService(messageEncryptionConfig);
var connectionProvider = new DefaultConnectionProvider(connectionStringSettings);
var commandBuildersFactory = new CommandBuildersFactory(connectionStringSettings);
var messageQueueingCommandBuilders = commandBuildersFactory.InitMessageQueueingCommandBuilders();
var messageQueueingOptions = new SQLMessageQueueingOptions(connectionProvider, messageQueueingCommandBuilders)
{
SecurityTokenService = securityTokenService,
MessageEncryptionService = messageEncryptionService
};
var sqlMessageQueueingService = new SQLMessageQueueingService(messageQueueingOptions);
sqlMessageQueueingService.Init();
return(sqlMessageQueueingService);
}