public PostgreSqlTaskQueueConsumer(TaskQueueConsumerOptions options, ITimestampProvider timestampProvider)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (timestampProvider == null)
{
throw new ArgumentNullException(nameof(timestampProvider));
}
mOptions = options;
mTimestampProvider = timestampProvider;
mSignalingConnectionString = options.ConnectionOptions
.ConnectionString
.DeriveSignalingConnectionString(options);
mNotificationListener = new PostgreSqlTaskQueueNotificationListener(mSignalingConnectionString,
options.Mapping.NewTaskNotificationChannelName);
mNotificationListener.ListenerConnectionRestored +=
HandleListenerConnectionRestored;
mNotificationListener.NewTaskPosted +=
HandleNewTaskUpdateReceived;
mNotificationListener.ListenerTimedOutWhileWaiting +=
HandleListenerTimedOut;
mTaskDequeueSql = GetTaskDequeueSql(options.Mapping);
mTaskAcquireSql = GetTaskAcquireSql(options.Mapping);
mTaskResultUpdateSql = GetTaskResultUpdateSql(options.Mapping);
}
protected void Dispose(bool disposing)
{
if (!mIsDisposed)
{
if (disposing)
{
ClearForDequeue = null;
StopReceivingNewTaskUpdatesAsync()
.Wait();
mNotificationListener.ListenerConnectionRestored -=
HandleListenerConnectionRestored;
mNotificationListener.NewTaskPosted -=
HandleNewTaskUpdateReceived;
mNotificationListener.ListenerTimedOutWhileWaiting -=
HandleListenerTimedOut;
mNotificationListener.Dispose();
mNotificationListener = null;
}
mIsDisposed = true;
}
}
