public DataStorage(KDB kDB)
{
this.kDB = kDB ?? throw new ArgumentNullException(nameof(kDB));
_dataFileWriter = new FileStream(this.kDB.DBPath + "/data.db", FileMode.Append, FileAccess.Write, FileShare.Read);
_dataFileReader = new FileStream(this.kDB.DBPath + "/data.db", FileMode.Open, FileAccess.Read, FileShare.Write);
}
public SSTable(KDB kDB, int fileNumber)
{
_kDB = kDB;
_store = new SortedList <string, FencePointer>();
_fileNumber = fileNumber;
LoadFile(fileNumber);
}
public IndexManager(KDB kDB)
{
_kDB = kDB ?? throw new ArgumentNullException(nameof(kDB));
_lastIndexFileNumber = GetLastFileNumber();
_dlinkedList = new LinkedList <IIndexTable>();
LoadSSTables();
_memTable = new MemTable(kDB);
_dlinkedList.AddFirst(_memTable);
}
static void Main(string[] args)
{
while (true)
{
var kdb = new KDB(".");
//kdb.Optimize();
//break;
Console.WriteLine("...........");
Console.WriteLine("1. Get Key");
Console.WriteLine("2. Put Key");
Console.WriteLine("3. Read All");
Console.WriteLine("...........");
var input = Console.ReadLine();
if (input == "1")
{
var inputKey = Console.ReadLine();
Console.WriteLine("Key : " + inputKey);
Console.WriteLine("Val : " + Encoding.ASCII.GetString(kdb.Get(inputKey)));
}
if (input == "2")
{
Console.Write("Enter Key : ");
var inputKey = Console.ReadLine();
Console.Write("Enter Val : ");
var inputValue = Console.ReadLine();
kdb.Put(inputKey, Encoding.ASCII.GetBytes(inputValue));
}
if (input == "3")
{
var iterator = kdb.GetAll();
while (true)
{
var key = iterator.Next();
if (key == null)
{
break;
}
Console.WriteLine("Key : " + key);
Console.WriteLine("Val : " + Encoding.ASCII.GetString(kdb.Get(key)));
}
}
kdb.Close();
}
}
public MemTable(KDB kDB)
{
_kDB = kDB ?? throw new ArgumentNullException(nameof(kDB));
Store = new SortedDictionary <string, FencePointer>();
}
public IndexStorage(KDB kDB)
{
_kDB = kDB ?? throw new ArgumentNullException(nameof(kDB));
}
