public void UpdateStatus(Enums.DocStatus status, Document doc)
{
var fic = KernelFactory.Instance.Get<IFileIndexContext>();
var document = fic.Documents.First(i => i.DocumentId == doc.DocumentId);
document.Status = status;
fic.SaveChanges();
}
public void CheckFileTimes(string path, Document doc)
{
var fi = new FileInfo(path);
fi.Refresh();
// READ Events
if (doc.DocEvents.Any(i => i.Type == Enums.EventType.Read))
{
var recentRead = doc.DocEvents.OrderByDescending(i => i.Time).First(j => j.Type == Enums.EventType.Read);
if (DateTime.Compare(recentRead.Time, fi.LastAccessTime.AddMilliseconds(-fi.LastAccessTime.Millisecond)) < 0)
{
// add the event to the list with the Type 'Read'
_events.Add(new FileSystemEvent() {
Type = Enums.EventType.Read,
FileInf = fi,
DocumentId = doc.DocumentId,
LastWrite = fi.LastWriteTime,
LastAccess = fi.LastAccessTime,
CreationTime = fi.CreationTime
});
}
}
// WRITE Events
if (doc.DocEvents.Any(i => i.Type == Enums.EventType.Write))
{
var recentWrite = doc.DocEvents.OrderByDescending(i => i.Time).First(j => j.Type == Enums.EventType.Write);
if (DateTime.Compare(recentWrite.Time, fi.LastWriteTime.AddMilliseconds(-fi.LastWriteTime.Millisecond)) < 0)
{
// add the event to the list with the Type 'Write'
_events.Add(new FileSystemEvent() {
Type = Enums.EventType.Write,
FileInf = fi,
DocumentId = doc.DocumentId,
LastWrite = fi.LastWriteTime,
LastAccess = fi.LastAccessTime,
CreationTime = fi.CreationTime
});
}
}
}
public void Retrieve(string key, string dest, Document doc)
{
Download.DownloadFile(key, Settings.Default.S3BucketName, dest);
var vm = KernelFactory.Instance.Get<IVersionManager>();
vm.UpdateStatus(Enums.DocStatus.Current, doc);
}
private DocEvent GetLastWriteEvent(Document doc)
{
return doc.DocEvents.OrderByDescending(i => i.Time).First(j => j.Type == Enums.EventType.Write);
}
public void WriteChangesToDB()
{
foreach (var e in _events)
{
// CREATE
if (e.Type == Enums.EventType.Create)
{
var hash = KernelFactory.Instance.Get<IHash>().HashFile(e.FileInf.FullName);
// path doesn't exist - check against hash
if (_fic.Documents.Any(i => i.DocumentHash == hash))
{
// if hash exists just add the path to the existing document
var doc = _fic.Documents.First(i => i.DocumentHash == hash);
if (doc.Status == Enums.DocStatus.Archived)
{
doc.Status = Enums.DocStatus.Current;
}
doc.DocPaths.Add(new DocPath() { Path = e.FileInf.FullName, Directory = e.FileInf.DirectoryName, Name = e.FileInf.Name });
doc.DocEvents.Add(new DocEvent() { Type = e.Type, Time = e.CreationTime });
UpdateFileTimes(doc, e);
}
else
{
// no path or hash found in DB
var doc = new Document() { DocumentHash = hash, Size = e.FileInf.Length, Status = Enums.DocStatus.Indexed };
doc.DocPaths.Add(new DocPath() { Path = e.FileInf.FullName, Directory = e.FileInf.DirectoryName, Name = e.FileInf.Name });
doc.DocEvents.Add(new DocEvent() { Type = e.Type, Time = e.CreationTime });
UpdateFileTimes(doc, e);
_fic.Documents.Add(doc);
}
}
// READ
else if (e.Type == Enums.EventType.Read)
{
// just add the read event
var doc = _fic.DocPaths.First(j => j.Path == e.FileInf.FullName).Document;
doc.DocEvents.Add(new DocEvent() { Time = e.LastAccess, Type = e.Type });
}
// WRITE
else if (e.Type == Enums.EventType.Write)
{
var hash = KernelFactory.Instance.Get<IHash>().HashFile(e.FileInf.FullName);
// add the write event plus update the file hash, possibly branch it out to a new document too + check it hasn't updated to = another document
if (_fic.Documents.Any(i => i.DocumentHash == hash))
{
// file hash matches an existing document (move the path to the matching document)
var matchingDoc = _fic.Documents.First(i => i.DocumentHash == hash);
if (matchingDoc.Status == Enums.DocStatus.Archived)
{
matchingDoc.Status = Enums.DocStatus.Current;
}
matchingDoc.DocPaths.Add(_fic.DocPaths.First(i => i.Path == e.FileInf.FullName));
matchingDoc.DocEvents.Add(new DocEvent() { Time = e.LastWrite, Type = e.Type });
//Logger.write("Changed (new hash matches existing document) " + e.FileInf.Name);
}
else
{
if (_fic.DocPaths.Any(i => i.Path == e.FileInf.FullName))
{
var currentPath = _fic.DocPaths.First(i => i.Path == e.FileInf.FullName);
var relatedDoc = currentPath.Document;
if (relatedDoc.DocPaths.Count() == 1)
{
// update the doc
relatedDoc.DocumentHash = hash;
relatedDoc.Size = e.FileInf.Length;
relatedDoc.Status = Enums.DocStatus.Indexed;
relatedDoc.DocEvents.Add(new DocEvent() { Time = e.LastWrite, Type = e.Type });
//Logger.write("Changed (same document, updated hash, status indexed) " + e.FileInf.Name);
}
else if (relatedDoc.DocPaths.Count() > 1)
{
// create new doc and add the path to it
var newDoc = new Document() { DocumentHash = hash, Size = e.FileInf.Length, Status = Enums.DocStatus.Indexed };
newDoc.DocPaths.Add(currentPath);
newDoc.DocEvents.Add(new DocEvent() { Time = e.LastWrite, Type = e.Type });
_fic.Documents.Add(newDoc);
//Logger.write("Changed (new hash, new document, status indexed");
}
else
{
// can't happen
Logger.Write("Error, impossible logic");
}
}
}
}
RestoreFileTimes(e);
_fic.SaveChanges();
}
_events.Clear();
}
public void UpdateFileTimes(Document doc, FileSystemEvent eve)
{
// READ Events
if (doc.DocEvents.Any(i => i.Type == Enums.EventType.Read))
{
var recentRead = doc.DocEvents.OrderByDescending(i => i.Time).First(j => j.Type == Enums.EventType.Read);
if (DateTime.Compare(recentRead.Time, eve.FileInf.LastAccessTime.AddMilliseconds(-eve.FileInf.LastAccessTime.Millisecond)) < 0)
{
// add event to doc
doc.DocEvents.Add(new DocEvent() { Type = Enums.EventType.Read, Time = eve.FileInf.LastAccessTime });
}
}
else
{
doc.DocEvents.Add(new DocEvent() { Type = Enums.EventType.Read, Time = eve.FileInf.LastAccessTime });
}
// WRITE Events
if (doc.DocEvents.Any(i => i.Type == Enums.EventType.Write))
{
var recentWrite = doc.DocEvents.OrderByDescending(i => i.Time).First(j => j.Type == Enums.EventType.Write);
if (DateTime.Compare(recentWrite.Time, eve.FileInf.LastWriteTime.AddMilliseconds(-eve.FileInf.LastWriteTime.Millisecond)) < 0)
{
// add event to doc
doc.DocEvents.Add(new DocEvent() { Type = Enums.EventType.Write, Time = eve.FileInf.LastWriteTime });
}
}
else
{
doc.DocEvents.Add(new DocEvent() { Type = Enums.EventType.Write, Time = eve.FileInf.LastWriteTime });
}
}