public void AddPoint(IHdaPoint point)
{
if (point == null)
{
throw new ArgumentNullException("point");
}
var values = point.GetValues().ToList();
if (values == null || !values.Any())
{
throw new ArgumentException("Точка не содержит значений.");
}
var fileGroupId = Guid.NewGuid();
var rootPath = Path.GetTempPath() + Assembly.GetExecutingAssembly().GetName().Name + "\\" + fileGroupId.ToString() + "\\";
new FileInfo(rootPath).Directory.Create();
var blockFiles = CompressedBlocksUtils.SaveToFileByParts(values, "points", rootPath, HDDDataManager.BLOCK_SIZE);
//Сохраняем заголовок (ссылку на саму точку не храним, ибо она очень много весит)
AddedPoints.Add(new PointInfo
{
Folder = rootPath,
Item = point.Item,
Description = point.Description,
EngUnit = point.EngUnit,
BlockFiles = blockFiles,
ValuesCount = values.Count
});
}
public IEnumerable <HdaPointValue> GetValues()
{
var values =
CompressedBlocksUtils.LoadFromParts("points",
_info.Folder,
_info.ValuesCount,
HDDDataManager.BLOCK_SIZE);
return(values.OfType <HdaPointValue>());
}
internal void Save(HDDInfinityFileImpl file)
{
if (string.IsNullOrWhiteSpace(file.FilePath))
{
throw new Exception("FileName is empty.");
}
List <string> blockFiles = new List <string>();
var rootPath = Path.GetTempPath() + Assembly.GetExecutingAssembly().GetName().Name + "\\";
blockFiles.AddRange(CompressedBlocksUtils.SaveToFileByParts(file.AddedEvents, "events", rootPath, BLOCK_SIZE));
blockFiles.AddRange(CompressedBlocksUtils.SaveToFileByParts(file.AddedConfigEvents,
"configEvents",
rootPath,
BLOCK_SIZE));
if (File.Exists(file.FilePath))
{
File.Delete(file.FilePath);
}
new FileInfo(file.FilePath).Directory.Create();
var serializer = new BinaryFormatter();
using (var stream = File.Open(file.FilePath, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
using (var writer = new BinaryWriter(stream))
{
writer.Write(Guid.Parse(Header).ToByteArray());
writer.Write(Version);
long hashPosition = stream.Position;
writer.Write(new byte[16]);
writer.Write(file.AddedPoints.Count);
writer.Write(file.AddedEvents.Length);
writer.Write(file.AddedConfigEvents.Length);
foreach (var addedPoint in file.AddedPoints)
{
serializer.Serialize(writer.BaseStream, addedPoint);
foreach (var blockFile in addedPoint.BlockFiles)
{
using (var blockStream = File.Open(blockFile, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
writer.Write((int)blockStream.Length);
blockStream.CopyTo(stream);
}
}
}
//Запись для событий и конфигурационных событий
foreach (var blockFile in blockFiles)
{
using (var blockStream = File.Open(blockFile, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
writer.Write((int)blockStream.Length);
blockStream.CopyTo(stream);
}
}
stream.Seek(hashPosition + 16, SeekOrigin.Begin);
using (var md5 = MD5.Create())
{
var hash = md5.ComputeHash(stream);
stream.Seek(hashPosition, SeekOrigin.Begin);
writer.Write(hash);
}
}
}
foreach (var blockFile in blockFiles)
{
File.Delete(blockFile);
}
}