private void ProcessSpecificGroupFeeds(FeedProcessingConfig processingConfig)
{
using (ICommandReceiver groupReceiver = Factory.GetInstance <ICommandReceiver>().Open(processingConfig.GroupQueueId))
{
while (true)
{
GroupQueueItem commandMessage = null;
try
{
commandMessage = groupReceiver.GetCommand <GroupQueueItem>();
if (commandMessage == null)
{
this.log.Error("No groups found to process. Processing stopped.");
return;
}
this.ProcessGroup(commandMessage.VkGroupId);
}
catch (Exception exc)
{
this.log.ErrorFormat("Exception is occured while processing a group Id = {0}: {1}", commandMessage != null ? commandMessage.VkGroupId : 0, exc.ToString());
return;
}
finally
{
if (commandMessage != null)
{
commandMessage.MarkAsCompleted();
using (ICommandSender groupSender = Factory.GetInstance <ICommandSender>().Open(processingConfig.GroupQueueId))
{
groupSender.SendCommand(new GroupQueueItem(commandMessage.VkGroupId));
}
}
}
}
}
}
private void ProcessQueueItem(FeedQueueItem queueItem, IVkDataProvider vkDataProvider, FeedProcessingConfig processingConfig)
{
try
{
if (!this.feedProviders.ContainsKey(queueItem.QueueItemType))
{
throw new ArgumentException(string.Format("Unsupported feed type provided: \"{0}\"", queueItem.QueueItemType));
}
var feedProvider = this.feedProviders[queueItem.QueueItemType];
var vkGroup = this.groupRepository.GetGroupById(queueItem.VkGroupId);
if (vkGroup == null)
{
this.log.InfoFormat("Group with Id = \"{0}\" not found. Processing stopped.", queueItem.VkGroupId);
return;
}
this.log.InfoFormat("Fetching of feed '{0}' for VkGroupId {1} is started", queueItem.QueueItemType, queueItem.VkGroupId);
using (ICommandSender commandSender = Factory.GetInstance <ICommandSender>().Open(processingConfig.OutputQueueId))
{
foreach (var dataFeed in feedProvider.GetFeeds(vkDataProvider, vkGroup))
{
dataFeed.TtlInMinutes = processingConfig.TtlInMinutes;
commandSender.SendCommand(dataFeed);
}
var terminator = new DataFeed
{
IsSequenceTerminator = true,
ReceivedAt = this.dateTimeHelper.GetDateTimeNow(),
SendingDate = this.dateTimeHelper.GetDateTimeNow(),
VkGroupId = vkGroup.Id,
Type = feedProvider.ProvidedDataType,
FetchingServer = this.webUtilities.GetServerName(),
FetchingProcess = this.webUtilities.GetApplicationPoolName()
};
commandSender.SendCommand(terminator);
}
this.log.InfoFormat("Fetching of feed '{0}' for VkGroupId {1} is finished", queueItem.QueueItemType, queueItem.VkGroupId);
}
catch (Exception exc)
{
this.log.Error(string.Format("Fetching of feed '{0}' for VkGroupId {1} is FAILED. Reason: {2}", queueItem.QueueItemType, queueItem.VkGroupId, exc));
}
}
