/// <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 StoreFile(string fileToStore)
{
using (var db = new FileDB(_filedbPath, FileAccess.Write))
{
return db.Store(fileToStore);
}
}
/// <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>
/// 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);
}
}
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 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;
}
}
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);
}
/// <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);
}