/// <summary>
/// Adds the channel number to the list and set.
/// </summary>
protected void AddCnlNum(int cnlNum)
{
if (cnlNum > 0 && CnlNumSet.Add(cnlNum))
{
int index = CnlNumList.BinarySearch(cnlNum);
if (index < 0)
{
CnlNumList.Insert(~index, cnlNum);
}
}
}
private TrendTable updatedTable; // the trend table that is currently being updated
/// <summary>
/// Initializes a new instance of the class.
/// </summary>
public BasicHAL(IArchiveContext archiveContext, ArchiveConfig archiveConfig, int[] cnlNums,
ModuleConfig moduleConfig) : base(archiveContext, archiveConfig, cnlNums)
{
this.moduleConfig = moduleConfig ?? throw new ArgumentNullException(nameof(moduleConfig));
options = new BasicHAO(archiveConfig.CustomOptions);
appLog = archiveContext.Log;
arcLog = options.LogEnabled ? CreateLog(ModuleUtils.ModuleCode) : null;
stopwatch = new Stopwatch();
adapter = new TrendTableAdapter
{
ArchiveCode = Code,
CnlNumCache = new MemoryCache <long, CnlNumList>(ModuleUtils.CacheExpiration, ModuleUtils.CacheCapacity)
};
tableCache = new MemoryCache <DateTime, TrendTable>(ModuleUtils.CacheExpiration, ModuleUtils.CacheCapacity);
slice = new Slice(DateTime.MinValue, cnlNums);
writingPeriod = GetPeriodInSec(options.WritingPeriod, options.WritingUnit);
nextWriteTime = DateTime.MinValue;
cnlIndexes = null;
cnlNumList = new CnlNumList(cnlNums);
currentTable = null;
updatedTable = null;
}
private TrendTable updatedTable; // the trend table that is currently being updated
/// <summary>
/// Initializes a new instance of the class.
/// </summary>
public BasicHAL(IArchiveContext archiveContext, ArchiveConfig archiveConfig, int[] cnlNums)
: base(archiveContext, archiveConfig, cnlNums)
{
options = new BasicHAO(archiveConfig.CustomOptions);
appLog = archiveContext.Log;
arcLog = options.LogEnabled ? CreateLog(ModuleUtils.ModuleCode) : null;
stopwatch = new Stopwatch();
adapter = new TrendTableAdapter
{
ParentDirectory = Path.Combine(archiveContext.AppConfig.PathOptions.GetArcDir(options.IsCopy), Code),
ArchiveCode = Code,
CnlNumCache = new MemoryCache <long, CnlNumList>(ModuleUtils.CacheExpiration, ModuleUtils.CacheCapacity)
};
tableCache = new MemoryCache <DateTime, TrendTable>(ModuleUtils.CacheExpiration, ModuleUtils.CacheCapacity);
slice = new Slice(DateTime.MinValue, cnlNums);
writingPeriod = GetPeriodInSec(options.WritingPeriod, options.WritingUnit);
nextWriteTime = DateTime.MinValue;
cnlIndexes = null;
cnlNumList = new CnlNumList(cnlNums);
currentTable = null;
updatedTable = null;
}
/// <summary>
/// Checks and updates the today's trend table.
/// </summary>
private void CheckCurrentTrendTable(DateTime nowDT)
{
currentTable = GetCurrentTrendTable(nowDT);
string tableDir = adapter.GetTablePath(currentTable);
string metaFileName = adapter.GetMetaPath(currentTable);
if (Directory.Exists(tableDir))
{
TrendTableMeta srcTableMeta = adapter.ReadMetadata(metaFileName);
if (srcTableMeta == null)
{
// the existing table is invalid and should be deleted
Directory.Delete(tableDir, true);
}
else if (srcTableMeta.Equals(currentTable.Metadata))
{
if (currentTable.GetDataPosition(nowDT, PositionKind.Ceiling,
out TrendTablePage page, out _))
{
string pageFileName = adapter.GetPagePath(page);
CnlNumList srcCnlNums = adapter.ReadCnlNums(pageFileName);
if (srcCnlNums == null)
{
// make sure that there is no page file
File.Delete(pageFileName);
}
else if (srcCnlNums.Equals(cnlNumList))
{
// re-create the channel list to use the existing list ID
cnlNumList = new CnlNumList(srcCnlNums.ListID, cnlNumList);
}
else
{
// update the current page
string msg = string.Format(Locale.IsRussian ?
"Обновление номеров каналов страницы {0}" :
"Update channel numbers of the page {0}", pageFileName);
appLog.WriteAction(ServerPhrases.ArchiveMessage, Code, msg);
arcLog?.WriteAction(msg);
adapter.UpdatePageChannels(page, srcCnlNums);
}
}
}
else
{
// updating the entire table structure would take too long, so just backup the table
string msg = string.Format(Locale.IsRussian ?
"Резервное копирование таблицы {0}" :
"Backup the table {0}", tableDir);
appLog.WriteAction(ServerPhrases.ArchiveMessage, Code, msg);
arcLog?.WriteAction(msg);
adapter.BackupTable(currentTable);
}
}
// create an empty table if it does not exist
if (!Directory.Exists(tableDir))
{
adapter.WriteMetadata(metaFileName, currentTable.Metadata);
currentTable.IsReady = true;
}
// add the archive channel list to the cache
adapter.CnlNumCache.Add(cnlNumList.ListID, cnlNumList);
}