public File(OnDiskFileCollection owner, uint index, string fileName)
{
_owner = owner;
_index = index;
_fileName = fileName;
_stream = new FileStream(fileName, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read, 1, FileOptions.None);
_writer = new Writer(this);
}
public File(OnDiskFileCollection owner, uint index, string fileName)
{
_owner = owner;
_index = index;
_fileName = fileName;
_stream = new FileStream(fileName, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read, 1, FileOptions.None);
_writer = new Writer(this);
}
static void Main(string[] args)
{
if (args.Length < 1)
{
Console.WriteLine("Need to have just one parameter with directory of ObjectDB");
return;
}
using (var dfc = new OnDiskFileCollection(args[0]))
using (var kdb = new KeyValueDB(dfc))
using (var odb = new ObjectDB())
{
odb.Open(kdb, false);
using (var tr = odb.StartTransaction())
{
var visitor = new ToStringVisitor();
var iterator = new ODBIterator(tr, visitor);
iterator.Iterate();
var text = visitor.ToString();
Console.WriteLine(text);
}
}
}
static void Main(string[] args)
{
if (args.Length < 1)
{
Console.WriteLine("Need to have just one parameter with directory of ObjectDB");
return;
}
var action = "dump";
if (args.Length > 1)
{
action = args[1].ToLowerInvariant();
}
switch (action)
{
case "dump":
{
using (var dfc = new OnDiskFileCollection(args[0]))
using (var kdb = new KeyValueDB(dfc))
using (var odb = new ObjectDB())
{
odb.Open(kdb, false);
using (var tr = odb.StartTransaction())
{
var visitor = new ToStringVisitor();
var iterator = new ODBIterator(tr, visitor);
iterator.Iterate();
var text = visitor.ToString();
Console.WriteLine(text);
}
}
break;
}
case "stat":
{
using (var dfc = new OnDiskFileCollection(args[0]))
using (var kdb = new KeyValueDB(dfc))
{
Console.WriteLine(kdb.CalcStats());
}
break;
}
case "compact":
{
using (var dfc = new OnDiskFileCollection(args[0]))
using (var kdb = new KeyValueDB(dfc, new SnappyCompressionStrategy(), 100 * 1024 * 1024, null))
{
Console.WriteLine("Starting first compaction");
while (kdb.Compact(new CancellationToken()))
{
Console.WriteLine(kdb.CalcStats());
Console.WriteLine("Another compaction needed");
}
Console.WriteLine(kdb.CalcStats());
}
break;
}
case "export":
{
using (var dfc = new OnDiskFileCollection(args[0]))
using (var kdb = new KeyValueDB(dfc))
using (var tr = kdb.StartReadOnlyTransaction())
using (var st = File.Create(Path.Combine(args[0], "export.dat")))
{
KeyValueDBExportImporter.Export(tr, st);
}
break;
}
default:
{
Console.WriteLine($"Unknown action: {action}");
break;
}
}
}
void DoWork5ReadCheck()
{
_sw.Restart();
using (var fileCollection = new OnDiskFileCollection("data"))
using (IKeyValueDB db = new KeyValueDB(fileCollection))
{
using (var trCheck = db.StartTransaction())
{
long pureDataLengthCheck = 0;
while (trCheck.FindNextKey())
{
pureDataLengthCheck += trCheck.GetKey().Length + trCheck.GetValue().Length;
}
if (pureDataLengthCheck != 396130000)
{
throw new Exception("Bug");
}
}
}
_sw.Stop();
Console.WriteLine("Time: {0,15}ms", _sw.Elapsed.TotalMilliseconds);
}
