/// <summary>
/// Store a file inside the database
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="fileName">Filename to associate with file (eg: MyPhoto.jpg)</param>
/// <param name="input">Stream with a file content</param>
/// <returns>EntryInfo with file information</returns>
public static EntryInfo Store(string dbFileName, string fileName, Stream input)
{
using (var db = new FileDB(dbFileName, FileAccess.ReadWrite))
{
return db.Store(fileName, input);
}
}
/// <summary>
/// Shrink datafile
/// </summary>
public void Shrink()
{
var dbFileName = _fileStream.Name;
var fileAccess = _fileStream.CanWrite ? FileAccess.ReadWrite : FileAccess.Read;
var tempFile = Path.GetDirectoryName(dbFileName) + Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(dbFileName) + ".temp" + Path.GetExtension(dbFileName);
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
var entries = ListFiles();
FileDB.CreateEmptyFile(tempFile, false);
using (var tempDb = new FileDB(tempFile, FileAccess.ReadWrite))
{
foreach (var entry in entries)
{
using (var stream = new MemoryStream())
{
Read(entry.ID, stream);
stream.Seek(0, SeekOrigin.Begin);
tempDb.Store(entry, stream);
}
}
}
Dispose();
File.Delete(dbFileName);
File.Move(tempFile, dbFileName);
Connect(dbFileName, fileAccess);
}
public EntryInfo CopyFile(Guid fileGuid, string destinationPath)
{
using (var db = new FileDB(_filedbPath, FileAccess.Read))
{
return db.Read(fileGuid, destinationPath);
}
}
public static void ReadFileContent(string dbFileName, EntryInfo entry, Stream output)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
db.ReadContent(entry, output);
}
}
/// <summary>
/// Read a file inside the database file
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="id">File ID</param>
/// <param name="fileName">Filename/Path to save the file (eg: C:\Temp\MyPhoto.jpg)</param>
/// <returns>EntryInfo with file information</returns>
public static EntryInfo Read(string dbFileName, Guid id, string fileName)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return(db.Read(id, fileName));
}
}
/// <summary>
/// Read a file inside the database file
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="id">File ID</param>
/// <param name="output">Stream to save the file</param>
/// <returns>EntryInfo with file information</returns>
public static EntryInfo Read(string dbFileName, Guid id, Stream output)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return(db.Read(id, output));
}
}
public static EntryInfo ReadMetadata(string dbFileName, Guid id)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return(db.ReadMetadata(id));
}
}
/// <summary>
/// Export all file inside a database to a directory
/// </summary>
/// <param name="dbFileName">FileDB database file</param>
/// <param name="directory">Directory to export files</param>
/// <param name="filePattern">File Pattern. Use keys: {id} {extension} {filename}. Eg: "{filename}.{id}.{extension}"</param>
public static void Export(string dbFileName, string directory, string filePattern)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
db.Export(directory, filePattern);
}
}
/// <summary>
/// Store a file inside the database
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="fileName">Filename to associate with file (eg: MyPhoto.jpg)</param>
/// <param name="input">Stream with a file content</param>
/// <returns>EntryInfo with file information</returns>
public static EntryInfo Store(string dbFileName, string fileName, Stream input)
{
using (var db = new FileDB(dbFileName, FileAccess.ReadWrite))
{
return(db.Store(fileName, input));
}
}
/// <summary>
/// Delete a file inside a database
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="id">Guid of file</param>
/// <returns>True with found and delete the file, otherwise false</returns>
public static bool Delete(string dbFileName, Guid id)
{
using (var db = new FileDB(dbFileName, FileAccess.ReadWrite))
{
return(db.Delete(id));
}
}
/// <summary>
/// Shrink database file
/// </summary>
/// <param name="dbFileName">Path to database file (eg: C:\Temp\MyDB.dat)</param>
public static void Shrink(string dbFileName)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
db.Shrink();
}
}
public EntryInfo Search(Guid id)
{
using (var db = new FileDB(_filedbPath, FileAccess.Read))
{
return db.Search(id);
}
}
/// <summary>
/// Delete a file inside a database
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <returns>Array with all files identities</returns>
public static EntryInfo[] ListFiles(string dbFileName)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return(db.ListFiles());
}
}
public EntryInfo StoreFile(string fileToStore)
{
using (var db = new FileDB(_filedbPath, FileAccess.Write))
{
return db.Store(fileToStore);
}
}
public static EntryInfo ReadMetadata(string dbFileName, Guid id)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return db.ReadMetadata(id);
}
}
/// <summary>
/// Read a file inside the database file
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="id">File ID</param>
/// <param name="output">Stream to save the file</param>
/// <returns>EntryInfo with file information</returns>
public static EntryInfo Read(string dbFileName, Guid id, Stream output)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return db.Read(id, output);
}
}
public ActionResult Structure()
{
using (var db = new FileDB(pathDB, FileAccess.Read))
{
ViewData["DebugInfo"] = db.Debug.DisplayPages();
}
return View();
}
public static EntryInfo Store(string dbFileName, string fileName, byte[] inputBuffer)
{
using (MemoryStream ms = new MemoryStream(inputBuffer))
using (var db = new FileDB(dbFileName, FileAccess.ReadWrite))
{
EntryInfo en = db.Store(fileName, ms);
ms.Close();
return(en);
}
}
public FileDbContext(FileAccess access, string connectionString = "ACTSfilesConnection")
{
var fileDbConnectionString = ConfigurationManager.ConnectionStrings[connectionString].ConnectionString;
var fileDbPath = Path.Combine((string)AppDomain.CurrentDomain.GetData("DataDirectory"), fileDbConnectionString);
Files = new FileDB(fileDbPath, access);
if (access.HasFlag(FileAccess.Write))
lock (_lockObj)
_writeCounter++;
}
public static EntryInfo Store(string dbFileName, string fileName, byte[] inputBuffer)
{
using (MemoryStream ms = new MemoryStream(inputBuffer))
using (var db = new FileDB(dbFileName, FileAccess.ReadWrite))
{
EntryInfo en = db.Store(fileName, ms);
ms.Close();
return en;
}
}
private void Connect(string fileName, FileAccess fileAccess)
{
if (!File.Exists(fileName))
{
FileDB.CreateEmptyFile(fileName);
}
// Não permite acesso somente gravação (transforma em leitura/gravação)
var fa = fileAccess == FileAccess.Write || fileAccess == FileAccess.ReadWrite ? FileAccess.ReadWrite : FileAccess.Read;
_fileStream = new FileStream(fileName, FileMode.Open, fa, FileShare.ReadWrite, (int)BasePage.PAGE_SIZE, FileOptions.None);
_engine = new Engine(_fileStream);
}
static void Test2()
{
//------------------------------------------------------------------------------
string dbFileName = @"d:\\WImageTest\\testdb2.dat";
//EntryInfo[] fileList2 = FileDB.ListFiles(dbFileName);
//var filename1 = fileList2[0].FileUrl;
//1. open
byte[] inputBuffer = GenerateTestDataBuffer("hello!...1");
List<SampleStoreRequest> storeReqs = new List<SampleStoreRequest>()
{
new SampleStoreRequest("a01", GenerateTestDataBuffer("hello_a01")),
new SampleStoreRequest("a02", GenerateTestDataBuffer("hello_a02")),
new SampleStoreRequest("a03", GenerateTestDataBuffer("hello_a03")),
new SampleStoreRequest("a04", GenerateTestDataBuffer("hello_a04")),
new SampleStoreRequest("a05", GenerateTestDataBuffer("hello_a05"))
};
using (var db = new FileDB(dbFileName, FileAccess.ReadWrite))
{
EntryInfo[] prevFiles = db.ListFiles();
int j = storeReqs.Count;
for (int i = 0; i < j; ++i)
{
SampleStoreRequest req = storeReqs[i];
using (var dataStream = new MemoryStream(req.buffer))
{
EntryInfo en = db.Store(req.fileName, dataStream);
db.Flush();
}
}
}
//------------------------------------------------------------------------------
//test read back
EntryInfo[] fileList = FileDB.ListFiles(dbFileName);
}
public ActionResult Download(string id)
{
// Using a classic way to download a file, insted of FileContentResult mode.
// Optimize for big files (download on demand)
using (var db = new FileDB(pathDB, FileAccess.Read))
{
var info = db.Search(Guid.Parse(id));
Response.Buffer = false;
Response.BufferOutput = false;
Response.ContentType = info.MimeType;
Response.AppendHeader("Content-Length", info.FileLength.ToString());
Response.AppendHeader("content-disposition", "attachment; filename=" + info.FileName);
db.Read(info.ID, Response.OutputStream);
return new EmptyResult();
}
}
/// <summary>
/// Delete a file inside a database
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="id">Guid of file</param>
/// <returns>True with found and delete the file, otherwise false</returns>
public static bool Delete(string dbFileName, Guid id)
{
using (var db = new FileDB(dbFileName, FileAccess.ReadWrite))
{
return db.Delete(id);
}
}
/// <summary>
/// Export all file inside a database to a directory
/// </summary>
/// <param name="dbFileName">FileDB database file</param>
/// <param name="directory">Directory to export files</param>
/// <param name="filePattern">File Pattern. Use keys: {id} {extension} {filename}. Eg: "{filename}.{id}.{extension}"</param>
public static void Export(string dbFileName, string directory, string filePattern)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
db.Export(directory, filePattern);
}
}
/// <summary>
/// Delete a file inside a database
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <returns>Array with all files identities</returns>
public static EntryInfo[] ListFiles(string dbFileName)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return db.ListFiles();
}
}
/// <summary>
/// Shrink datafile
/// </summary>
public void Shrink()
{
var dbFileName = _fileStream.Name;
var fileAccess = _fileStream.CanWrite ? FileAccess.ReadWrite : FileAccess.Read;
var tempFile = Path.GetDirectoryName(dbFileName) + Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(dbFileName) + ".temp" + Path.GetExtension(dbFileName);
if (File.Exists(tempFile))
File.Delete(tempFile);
var entries = ListFiles();
FileDB.CreateEmptyFile(tempFile, false);
using (var tempDb = new FileDB(tempFile, FileAccess.ReadWrite))
{
foreach (var entry in entries)
{
using (var stream = new MemoryStream())
{
Read(entry.ID, stream);
stream.Seek(0, SeekOrigin.Begin);
tempDb.Store(entry, stream);
}
}
}
Dispose();
File.Delete(dbFileName);
File.Move(tempFile, dbFileName);
Connect(dbFileName, fileAccess);
}
public ActionResult Thumbnail(string id)
{
using (var db = new FileDB(pathDB, FileAccess.Read))
{
var info = db.Search(Guid.Parse(id));
if (!info.MimeType.StartsWith("image", StringComparison.InvariantCultureIgnoreCase))
return File(Server.MapPath("~/Content/no-picture.jpg"), "image/jpg");
using (MemoryStream output = new MemoryStream())
{
db.Read(info.ID, output);
Image image = Image.FromStream(output);
Image thumbnailImage = image.GetThumbnailImage(64, 64, new Image.GetThumbnailImageAbort(delegate { return true; }), IntPtr.Zero);
using (MemoryStream imageStream = new MemoryStream())
{
thumbnailImage.Save(imageStream, System.Drawing.Imaging.ImageFormat.Png);
return File(imageStream.ToArray(), "image/png");
}
}
}
}
/// <summary>
/// Shrink database file
/// </summary>
/// <param name="dbFileName">Path to database file (eg: C:\Temp\MyDB.dat)</param>
public static void Shrink(string dbFileName)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
db.Shrink();
}
}
public ActionResult DeleteAll()
{
using (var db = new FileDB(pathDB, FileAccess.ReadWrite))
{
var ent = db.ListFiles();
foreach(var e in ent)
db.Delete(e.ID);
}
return RedirectToAction("Index");
}
/// <summary>
/// Read a file inside the database file
/// </summary>
/// <param name="dbFileName">Database path/filname (eg: C:\Temp\MyDB.dat)</param>
/// <param name="id">File ID</param>
/// <param name="fileName">Filename/Path to save the file (eg: C:\Temp\MyPhoto.jpg)</param>
/// <returns>EntryInfo with file information</returns>
public static EntryInfo Read(string dbFileName, Guid id, string fileName)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
return db.Read(id, fileName);
}
}
public static void ReadFileContent(string dbFileName, EntryInfo entry, Stream output)
{
using (var db = new FileDB(dbFileName, FileAccess.Read))
{
db.ReadContent(entry, output);
}
}
