void AddNewValue()
{
OpenFileDialog openDic = new OpenFileDialog();
openDic.Multiselect = false;
openDic.Filter = string.Format("{0} (*.{1})|*.{1}", "Index файл", "index");
if (openDic.ShowDialog() == DialogResult.OK)
{
var basePath = System.IO.Path.ChangeExtension(openDic.FileName, null);
var indexFile = basePath + ".index";
var baseFile = basePath + ".base";
var header = Helper.ReadFromBinaryFile <SelfOrganizeIndexHeader>(openDic.FileName, 0);
if (header.version == 0)
{
Console.WriteLine("Incorrect file header");
MessageBox.Show("Incorrect file header");
return;
}
if (header.version != _version)
{
Console.WriteLine("Old version,fix it");
MessageBox.Show("Old version, fix it");
return;
}
Console.WriteLine("Be patient!Operation may take some time,depending on index file");
var lst = Helper.ReadFromBinaryFileList <SelfOrganizeIndexNode>(indexFile, header.nodesBeginOffset, 0, true);
while (true)
{
Console.WriteLine("Enter value to add, -1 to exit");
var data = Console.ReadLine();
if (data.Contains("-1"))
{
break;
}
Console.WriteLine("Wait...");
var hash = Helper.GetHash(data, _hashType);
var exist = lst.Where(x => x.hash == hash);
if (exist.Any())
{
Console.WriteLine("This value already exists");
}
else
{
var newNode = new SelfOrganizeFileNode()
{
text = data
};
var lastNodePos = Helper.WriteToBinaryFile <SelfOrganizeFileNode>(baseFile, newNode, FileMode.Append);
var indexNode = new SelfOrganizeIndexNode()
{
hash = Helper.GetHash(data, _hashType),
len = System.Runtime.InteropServices.Marshal.SizeOf(newNode),
offset = lastNodePos
};
lst.Add(indexNode);
Helper.WriteToBinaryFile <SelfOrganizeIndexNode>(indexFile, indexNode, FileMode.Append);
header.count += 1;
Helper.WriteToBinaryFile <SelfOrganizeIndexHeader>(indexFile, header, FileMode.Open, 0);
}
}
}
}
void GenerateNewSelfOrganizingFile()
{
OpenFileDialog openDic = new OpenFileDialog();
openDic.Multiselect = false;
var items = new List <SelfOrganizeIndexNode>();
if (openDic.ShowDialog() == DialogResult.OK)
{
var fileName = GenerateNameForNewFile();
var lines = System.IO.File.ReadAllLines(openDic.FileName);
if (lines.Count() > 0)
{
Console.WriteLine("Be patient!Operation may take some time,depending on input file");
var indexFile = fileName + ".index";
var baseFile = fileName + ".base";
//Write 1st text element
var firstFileNode = new SelfOrganizeFileNode()
{
text = lines.ElementAt(0)
};
var firstFileNodePos = Helper.WriteToBinaryFile <SelfOrganizeFileNode>(baseFile, firstFileNode, FileMode.CreateNew);
var header = new SelfOrganizeIndexHeader()
{
version = _version,
hashType = _hashType,
count = lines.Count(),
nodesBeginOffset = 0,
};
//Write header
var firstIndexPos = Helper.WriteToBinaryFile <SelfOrganizeIndexHeader>(indexFile, header, FileMode.CreateNew, -1, false);
//Update header with correct information
header.nodesBeginOffset = firstIndexPos;
Helper.WriteToBinaryFile <SelfOrganizeIndexHeader>(indexFile, header, FileMode.Open, 0);
var firstIndexNode = new SelfOrganizeIndexNode()
{
hash = Helper.GetHash(firstFileNode.text, _hashType),
len = Marshal.SizeOf(firstFileNode),
offset = firstFileNodePos
};
//Add 1st index
Helper.WriteToBinaryFile <SelfOrganizeIndexNode>(indexFile, firstIndexNode, FileMode.Append);
var res = new List <SelfOrganizeIndexNode>();
for (int i = 1; i < lines.Count(); i++)
{
var item = lines[i];
var fileNode = new SelfOrganizeFileNode()
{
text = item
};
var lastNodePos = Helper.WriteToBinaryFile <SelfOrganizeFileNode>(baseFile, fileNode, FileMode.Append);
var indexNode = new SelfOrganizeIndexNode()
{
hash = Helper.GetHash(item, _hashType),
len = System.Runtime.InteropServices.Marshal.SizeOf(fileNode),
offset = lastNodePos
};
res.Add(indexNode);
}
Helper.WriteToBinaryFileList <SelfOrganizeIndexNode>(indexFile, res, FileMode.Append);
res.Clear();
}
}
}
