public IndexDynamicTest()
{
var uniqPath = Path+DateTime.Now.ToString(CultureInfo.InvariantCulture).Replace(":"," ")+ DateTime.Now.Second.ToString()+ @"/";
Directory.CreateDirectory(uniqPath);
tableView = new TableView(uniqPath+ "table", TpTableElement);
tableView.Fill(Enumerable.Range(0, NumberOfRecords).Select(i =>
(object) (new object[] {i.ToString(), i })));
// Делаем индекс
var ha = new IndexHalfkeyImmutable<string>(uniqPath + "dyna_index_str_half")
{
Table = tableView,
KeyProducer = va => (string) ((object[]) (((object[]) va)[1]))[0],
HalfProducer = k => k.GetHashModifiedBernstein()
};
ha.Scale = new ScaleCell(uniqPath + "dyna_index_str_half") {IndexCell = ha.IndexCell};
ha.Build();
sIndex = new IndexDynamic<string, IndexHalfkeyImmutable<string>>(true)
{
Table = tableView,
KeyProducer = va => (string) ((object[]) (((object[]) va)[1]))[0],
IndexArray = ha
};
iIndex = new IndexDynamic<int, IIndexImmutable<int>>(true,
new IndexKeyImmutable<int>(uniqPath + "int", tableView,
va => (int) ((object[]) (((object[]) va)[1]))[1],
new ScaleCell(uniqPath + "iisndexScale")));
iIndex.Build();
}
public static void Main7()
{
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
string path = "../../../Databases/";
int NumberOfRecords = 100000000;
Random rnd = new Random();
Console.WriteLine("Start Universal Index. Main7()");
PType tp_table_element = new PTypeRecord(
new NamedType("name", new PType(PTypeEnumeration.sstring)),
new NamedType("age", new PType(PTypeEnumeration.integer)));
TableView table = new TableView(path + "table", tp_table_element);
sw.Restart();
bool tobuild = false;
if (tobuild)
{
table.Fill(Enumerable.Range(0, NumberOfRecords).Select(i =>
(object)(new object[] { i.ToString(), i == NumberOfRecords / 2 ? -1 : i })));
sw.Stop();
Console.WriteLine("Load Table of {0} elements ok. Duration {1}", NumberOfRecords, sw.ElapsedMilliseconds);
}
else table.Warmup();
sw.Restart();
// Делаем индекс
var ha = new IndexHalfkeyImmutable<string>(path + "dyna_index_str_half")
{
Table = table,
KeyProducer = va => (string)((object[])(((object[])va)[1]))[0],
HalfProducer = k => k.GetHashCode()
};
ha.Scale = new ScaleCell(path + "dyna_index_str_half") { IndexCell = ha.IndexCell };
bool tobuild_h_index = false;
if (tobuild_h_index)
{
ha.Build();
}
else
{
ha.Warmup();
//ha.BuildScale();
}
IndexDynamic<string, IndexHalfkeyImmutable<string>> h_index = new IndexDynamic<string, IndexHalfkeyImmutable<string>>(true)
{
Table = table,
KeyProducer = va => (string)((object[])(((object[])va)[1]))[0],
IndexArray = ha
};
Console.WriteLine("h_index Build ok. Duration {0}", sw.ElapsedMilliseconds);
sw.Restart();
int cnt = 0;
for (int i = 0; i < 1000; i++)
{
int c = h_index.GetAllByKey(rnd.Next(NumberOfRecords * 3 / 2 - 1).ToString()).Count();
if (c > 1) Console.WriteLine("Unexpected Error: {0}", c);
cnt += c;
}
sw.Stop();
Console.WriteLine("1000 GetAllByKey ok. Duration={0} cnt={1}", sw.ElapsedMilliseconds, cnt);
}