public async Task ExecuteOperationThreadTopicSynchronizedAsync(string topicId, MessagePageId pageId, IMessageContentPage messageContentPage)
{
var logContext = "Page: " + pageId.Value;
if (await _compressedMessagesStorage.HasCompressedPageAsync(topicId, pageId))
{
_appLogger.AddLog(LogProcess.PagesCompressor, topicId, logContext, "Has compressed page. Skipping compressing procedure");
return;
}
if (messageContentPage.Count == 0)
{
_appLogger.AddLog(LogProcess.PagesCompressor, topicId, logContext, "No messages to compress. Skipping compressing procedure");
return;
}
var compressedPage = messageContentPage.GetCompressedPage();
if (_appGlobalFlags.DebugTopic == topicId)
{
_appLogger.AddLog(LogProcess.PagesCompressor, topicId, logContext, $"Writing Compressed data for page {pageId}.");
}
await _compressedMessagesStorage.WriteCompressedPageAsync(topicId, pageId, compressedPage, _appLogger);
if (_appGlobalFlags.DebugTopic == topicId)
{
_appLogger.AddLog(LogProcess.PagesCompressor, topicId, logContext, $"Verifying compressed data for page {pageId}");
}
var compressedPageToVerify = await _compressedMessagesStorage.GetCompressedPageAsync(topicId, pageId);
var messages = compressedPageToVerify.Messages;
if (_appGlobalFlags.DebugTopic == topicId)
{
_appLogger.AddLog(LogProcess.PagesCompressor, topicId, logContext, $"Verified compressed data for page {pageId}. Messages: " + messages.Count);
}
if (_appGlobalFlags.DebugTopic == topicId)
{
_appLogger.AddLog(LogProcess.PagesCompressor, topicId, logContext, $"Deleting Uncompressed page {pageId}");
}
await _persistentStorage.DeleteNonCompressedPageAsync(topicId, pageId);
if (_appGlobalFlags.DebugTopic == topicId)
{
_appLogger.AddLog(LogProcess.PagesCompressor, topicId, logContext, "Written Compressed Page: " + pageId + ". Messages in the page:" + messageContentPage.Count);
}
}
public async Task <IMessageContentPage> TryRestoreFromCompressedPage(string topicId, MessagePageId pageId)
{
var resultFromCache = _messagesContentCache.TryGetPage(topicId, pageId);
if (resultFromCache != null)
{
return(resultFromCache);
}
var logContext = "PageId: " + pageId.Value;
_appLogger.AddLog(LogProcess.PagesLoaderOrGc, topicId, logContext,
$"Restoring page #{pageId} from compressed source");
var pageCompressedContent = await _compressedMessagesStorage.GetCompressedPageAsync(topicId, pageId);
var dt = DateTime.UtcNow;
if (pageCompressedContent.ZippedContent.Length == 0)
{
_appLogger.AddLog(LogProcess.PagesLoaderOrGc, topicId, logContext,
$"Can not restore page #{pageId} from compressed source. Duration: {DateTime.UtcNow - dt}");
return(null);
}
var msgs = pageCompressedContent.Messages;
long minId = 0;
long maxId = 0;
if (msgs.Count > 0)
{
minId = msgs.Min(itm => itm.MessageId);
maxId = msgs.Max(itm => itm.MessageId);
}
_appLogger.AddLog(LogProcess.PagesLoaderOrGc, topicId, logContext,
$"Restored page #{pageId} from compressed source. Duration: {DateTime.UtcNow - dt}. Messages: {msgs.Count}. MinId: {minId}, MaxId: {maxId}");
var result = new ReadOnlyContentPage(pageCompressedContent);
_messagesContentCache.AddPage(topicId, result);
return(result);
}
