public void ShouldStoreThreeRecordsOutOfOrder2(
int pageSize)
{
var tree = new BplusTree(pageSize);
var cusomter03 = CreateCustomer(102);
tree.Insert(cusomter03);
var cusomter02 = CreateCustomer(101);
tree.Insert(cusomter02);
var customer01 = CreateCustomer(100);
tree.Insert(customer01);
var customers = tree.GetAll();
customers.Should().HaveCount(3);
customers[0].CustomerId.Should().Be(100);
customers[1].CustomerId.Should().Be(101);
customers[2].CustomerId.Should().Be(102);
}
public void BalancedInsert()
{
var tree = new BplusTree(PageCount);
tree.GetStringVersion().Should().BeEmpty();
var customerRecord1 = CreateCustomer(500);
tree.Insert(customerRecord1);
tree.GetStringVersion().Should().Be("P:500");
var customerRecord2 = CreateCustomer(400);
tree.Insert(customerRecord2);
tree.GetStringVersion().Should().Be("P:400|P:500");
var customerRecord3 = CreateCustomer(300);
tree.Insert(customerRecord3);
tree.GetStringVersion().Should().Be("P:300|P:400|P:500");
var customerRecord4 = CreateCustomer(350);
tree.Insert(customerRecord4);
tree.GetStringVersion().Should().Be("P:300|P:350|I:400|P:400|P:500");
}
public void Test910(
int pageSize)
{
var tree = new BplusTree(pageSize);
var customer01 = CreateCustomer(100);
tree.Insert(customer01);
var cusomter02 = CreateCustomer(110);
tree.Insert(cusomter02);
var cusomter03 = CreateCustomer(120);
tree.Insert(cusomter03);
var cusomter04 = CreateCustomer(105);
tree.Insert(cusomter04);
var cusomter05 = CreateCustomer(130);
tree.Insert(cusomter05);
var customers = tree.GetAll();
customers.Should().HaveCount(5);
customers[0].CustomerId.Should().Be(100);
customers[1].CustomerId.Should().Be(105);
customers[2].CustomerId.Should().Be(110);
customers[3].CustomerId.Should().Be(120);
customers[4].CustomerId.Should().Be(130);
}
public void ShouldStoreTwoRecord(
int pageSize)
{
var tree = new BplusTree(pageSize);
var customer01 = CreateCustomer(100);
tree.Insert(customer01);
var cusomter02 = CreateCustomer(101);
tree.Insert(cusomter02);
var customers = tree.GetAll();
customers.Should().HaveCount(2);
customers[0].CustomerId.Should().Be(100);
customers[0].Name.Should().Be(customer01.Name);
customers[1].CustomerId.Should().Be(101);
customers[1].Name.Should().Be(cusomter02.Name);
var stringVersion = tree.GetStringVersion();
stringVersion.Should().Be("P:100|P:101");
}
private void Initialize(string workingDir, bool createNotFound)
{
if (String.IsNullOrEmpty(workingDir))
{
throw new InvalidOperationException();
}
_quickStorage = new MemoryTargetStorage();
if (!Directory.Exists(workingDir))
{
Directory.CreateDirectory(workingDir);
}
if (_isSystem)
{
_treeFileName = Path.Combine(workingDir, "LinkT2.6.10621.1.dat");
_blockFileName = Path.Combine(workingDir, "LinkB2.6.10621.1.dat");
}
else
{
string tempFile = Path.GetFileNameWithoutExtension(
Path.GetTempFileName());
_treeFileName = Path.Combine(workingDir, tempFile + "Tree.dat");
_blockFileName = Path.Combine(workingDir, tempFile + "Block.dat");
}
if (File.Exists(_treeFileName) && File.Exists(_blockFileName))
{
_isExisted = true;
_plusTree = hBplusTree.ReOpen(_treeFileName, _blockFileName);
if (_plusTree.ContainsKey("$DataCount$"))
{
_count = Convert.ToInt32(_plusTree["$DataCount$"]);
}
this.AddQuickTargets();
//if (_count > 0)
//{
//}
}
else
{
_count = 0;
if (createNotFound)
{
_plusTree = hBplusTree.Initialize(_treeFileName,
_blockFileName, 64);
}
}
if (_plusTree != null)
{
_targetCache = new DatabaseTargetCache(100);
}
}
private void Initialize(string workingDir, bool createNotFound)
{
_count = 0;
_cachedMsdnUrls = new Dictionary <string, string>();
if (String.IsNullOrEmpty(workingDir))
{
throw new InvalidOperationException();
}
if (!Directory.Exists(workingDir))
{
Directory.CreateDirectory(workingDir);
}
//string localPart = _locale.ToUpper();
if (_isSystem)
{
_treeFileName = Path.Combine(workingDir, "MsdnT2.6.10621.1.dat");
_blockFileName = Path.Combine(workingDir, "MsdnB2.6.10621.1.dat");
//_treeFileName = Path.Combine(workingDir, "MsdnT" + localPart + "2.6.10621.1.dat");
//_blockFileName = Path.Combine(workingDir, "MsdnB" + localPart + "2.6.10621.1.dat");
}
else
{
string tempFile = Path.GetFileNameWithoutExtension(
Path.GetTempFileName());
_treeFileName = Path.Combine(workingDir, tempFile + "Tree.dat");
_blockFileName = Path.Combine(workingDir, tempFile + "Block.dat");
//_treeFileName = Path.Combine(workingDir, tempFile + localPart + "Tree.dat");
//_blockFileName = Path.Combine(workingDir, tempFile + localPart + "Block.dat");
}
if (File.Exists(_treeFileName) && File.Exists(_blockFileName))
{
_isExisted = true;
_plusTree = hBplusTree.ReOpen(_treeFileName, _blockFileName);
if (_plusTree.ContainsKey("$DataCount$"))
{
_count = Convert.ToInt32(_plusTree["$DataCount$"]);
}
}
else
{
if (createNotFound)
{
_plusTree = hBplusTree.Initialize(_treeFileName,
_blockFileName, 64);
}
}
}
public void ShouldNotErrorWithZeroRecords(
int pageSize)
{
var tree = new BplusTree(pageSize);
var customers = tree.GetAll();
customers.Should().HaveCount(0);
var stringVersion = tree.GetStringVersion();
stringVersion.Should().BeEmpty();
}
public void RightSplit()
{
var tree = new BplusTree(PageCount);
tree.GetStringVersion().Should().BeEmpty();
tree.Insert(CreateCustomer(100));
tree.GetStringVersion().Should().Be("P:100");
tree.Insert(CreateCustomer(110));
tree.GetStringVersion().Should().Be("P:100|P:110");
tree.Insert(CreateCustomer(120));
tree.GetStringVersion().Should().Be("P:100|I:110|P:110|P:120");
tree.Insert(CreateCustomer(130));
tree.GetStringVersion().Should().Be("P:100|I:110|P:110|I:120|P:120|P:130");
}
public void BalancedInsert()
{
var tree = new BplusTree(PageCount);
tree.GetStringVersion().Should().BeEmpty();
tree.Insert(CreateCustomer(500));
tree.GetStringVersion().Should().Be("P:500");
tree.Insert(CreateCustomer(400));
tree.GetStringVersion().Should().Be("P:400|P:500");
tree.Insert(CreateCustomer(300));
tree.GetStringVersion().Should().Be("P:300|I:400|P:400|P:500");
tree.Insert(CreateCustomer(350));
tree.GetStringVersion().Should().Be("P:300|P:350|I:400|P:400|P:500");
}
private static void InitKeyValueStore()
{
try
{
if (File.Exists("services.dat") && File.Exists("services.tree"))
{
_tree = BplusTree.ReOpen("services.tree", "services.dat");
}
else
{
_tree = BplusTree.Initialize("services.tree", "services.dat", 36);
}
}
catch (Exception)
{
Log.Error("Error initialising service tree");
//_tree = BplusTree.Initialize("services.tree", "services.dat", 36);
}
}
private void OpenSaveFile(string filename, string path)
{
if (IsOpen())
{
Debug.LogError(
$"You are trying to open an already opened save file ('{filename}')");
return;
}
var treeFileName = Path.Combine(path, filename + ".save");
var blockFileName = Path.Combine(path, filename + ".block");
try
{
_tree = BplusTree.Initialize(treeFileName, blockFileName, 40);
}
catch (IOException)
{
try
{
_tree = BplusTree.ReOpen(treeFileName, blockFileName);
}
catch (DirectoryNotFoundException e)
{
Debug.LogError(
"Error while opening the save file, check that the specified directory exists\n" +
e);
return;
}
catch (IOException e)
{
Debug.LogError(
$"Error while opening the save file, check that save file '{filename}' is not already open\n" +
e);
return;
}
}
_open = true;
_filename = filename;
_path = path;
}
protected override void Dispose(bool disposing)
{
if (_plusTree != null)
{
try
{
// Save the system reflection database, if newly created...
if (_isSystem)
{
if (!_isExisted)
{
// Add some metadata...
_plusTree["$DataCount$"] = _count.ToString();
_plusTree["$DataVersion$"] = "2.6.10621.1";
_plusTree.Commit();
}
}
_plusTree.Shutdown();
_plusTree = null;
// For the non-system reflection database, delete after use...
if (!_isSystem)
{
if (!String.IsNullOrEmpty(_treeFileName) &&
File.Exists(_treeFileName))
{
File.Delete(_treeFileName);
}
if (!String.IsNullOrEmpty(_blockFileName) &&
File.Exists(_blockFileName))
{
File.Delete(_blockFileName);
}
}
}
catch
{
}
}
}
public void ShouldStoreSingleRecord(
int pageSize)
{
var tree = new BplusTree(pageSize);
var customerRecord = CreateCustomer(100);
tree.Insert(customerRecord);
var customers = tree.GetAll();
customers.Should().HaveCount(1);
customers[0].CustomerId.Should().Be(100);
customers[0].Name.Should().Be(customerRecord.Name);
var stringVersion = tree.GetStringVersion();
stringVersion.Should().Be("P:100");
}
public void HighLevelIndexSplit()
{
var tree = new BplusTree(PageCount);
tree.GetStringVersion().Should().BeEmpty();
tree.Insert(CreateCustomer(100));
tree.GetStringVersion().Should().Be("P:100");
tree.Insert(CreateCustomer(200));
tree.GetStringVersion().Should().Be("P:100|P:200");
tree.Insert(CreateCustomer(300));
tree.GetStringVersion().Should().Be("P:100|I:200|P:200|P:300");
tree.Insert(CreateCustomer(110));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|P:300");
tree.Insert(CreateCustomer(400));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|I:300|P:300|P:400");
tree.Insert(CreateCustomer(225));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|P:225|I:300|P:300|P:400");
tree.Insert(CreateCustomer(230));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|I:225|P:225|P:230|I:300|P:300|P:400");
tree.Insert(CreateCustomer(500));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|I:225|P:225|P:230|I:300|P:300|I:400|P:400|P:500");
tree.Insert(CreateCustomer(600));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|I:225|P:225|P:230|I:300|P:300|I:400|P:400|I:500|P:500|P:600");
tree.Insert(CreateCustomer(700));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|I:225|P:225|P:230|I:300|P:300|I:400|P:400|I:500|P:500|I:600|P:600|P:700");
tree.Insert(CreateCustomer(800));
tree.GetStringVersion().Should().Be("P:100|P:110|I:200|P:200|I:225|P:225|P:230|I:300|P:300|I:400|P:400|I:500|P:500|I:600|P:600|I:700|P:700|P:800");
}
public void LeftMostSplit()
{
var tree = new BplusTree(PageCount);
tree.GetStringVersion().Should().BeEmpty();
tree.Insert(CreateCustomer(100));
tree.GetStringVersion().Should().Be("P:100");
tree.Insert(CreateCustomer(200));
tree.GetStringVersion().Should().Be("P:100|P:200");
tree.Insert(CreateCustomer(300));
tree.GetStringVersion().Should().Be("P:100|P:200|P:300");
tree.Insert(CreateCustomer(400));
tree.GetStringVersion().Should().Be("P:100|P:200|I:300|P:300|P:400");
tree.Insert(CreateCustomer(250));
tree.GetStringVersion().Should().Be("P:100|P:200|P:250|I:300|P:300|P:400");
tree.Insert(CreateCustomer(275));
tree.GetStringVersion().Should().Be("P:100|P:200|I:250|P:250|P:275|I:300|P:300|P:400");
tree.Insert(CreateCustomer(225));
tree.GetStringVersion().Should().Be("P:100|P:200|P:225|I:250|P:250|P:275|I:300|P:300|P:400");
tree.Insert(CreateCustomer(150));
tree.GetStringVersion().Should().Be("P:100|P:150|I:200|P:200|P:225|I:250|P:250|P:275|I:300|P:300|P:400");
tree.Insert(CreateCustomer(175));
tree.GetStringVersion().Should().Be("P:100|P:150|P:175|I:200|P:200|P:225|I:250|P:250|P:275|I:300|P:300|P:400");
tree.Insert(CreateCustomer(125));
tree.GetStringVersion().Should().Be("P:100|P:125|I:150|P:150|P:175|I:200|P:200|P:225|I:250|P:250|P:275|I:300|P:300|P:400");
}
public void MiddleSplit()
{
var tree = new BplusTree(PageCount);
tree.GetStringVersion().Should().BeEmpty();
tree.Insert(CreateCustomer(100));
tree.GetStringVersion().Should().Be("P:100");
tree.Insert(CreateCustomer(110));
tree.GetStringVersion().Should().Be("P:100|P:110");
tree.Insert(CreateCustomer(120));
tree.GetStringVersion().Should().Be("P:100|P:110|P:120");
tree.Insert(CreateCustomer(130));
tree.GetStringVersion().Should().Be("P:100|P:110|I:120|P:120|P:130");
tree.Insert(CreateCustomer(111));
tree.GetStringVersion().Should().Be("P:100|P:110|P:111|I:120|P:120|P:130");
tree.Insert(CreateCustomer(112));
tree.GetStringVersion().Should().Be("P:100|P:110|I:111|P:111|P:112|I:120|P:120|P:130");
tree.Insert(CreateCustomer(113));
tree.GetStringVersion().Should().Be("P:100|P:110|I:111|P:111|P:112|P:113|I:120|P:120|P:130");
tree.Insert(CreateCustomer(114));
tree.GetStringVersion().Should().Be("P:100|P:110|I:111|P:111|P:112|I:113|P:113|P:114|I:120|P:120|P:130");
tree.Insert(CreateCustomer(115));
tree.GetStringVersion().Should().Be("P:100|P:110|I:111|P:111|P:112|I:113|P:113|P:114|P:115|I:120|P:120|P:130");
tree.Insert(CreateCustomer(116));
tree.GetStringVersion().Should().Be("P:100|P:110|I:111|P:111|P:112|I:113|P:113|P:114|I:115|P:115|P:116|I:120|P:120|P:130");
}
public WebServer(BplusTree serviceTree)
{
_tree = serviceTree;
}