public void ReadWrite()
{
// Clean..
Utils.ClearJournal <PocoQuote>("c:\\temp\\quote");
// Create.
var journal = new JournalBuilder()
.WithRecordCountHint(1000000)
.WithPartitionBy(EPartitionType.Day)
.WithLocation("c:\\temp\\quote")
.WithSymbolColumn("Sym", 20, 5, 5)
.WithSymbolColumn("Ex", 20, 20, 20)
.WithSymbolColumn("Mode", 20, 20, 20)
.WithTimestampColumn("Timestamp")
.WithAccess(EFileAccess.ReadWrite)
.ToJournal <PocoQuote>();
// Append.
var start = DateTime.Now.Date.AddMonths(-1);
using (var wr = journal.OpenWriteTx())
{
var quote = new PocoQuote();
for (int i = 0; i < 1000000; i++)
{
quote.Timestamp = start.AddSeconds(i);
quote.Bid = i * 2.04;
quote.Bid = i;
quote.BidSize = i;
quote.Ask = i * 50.09014;
quote.AskSize = i;
quote.Ex = "LXE";
quote.Mode = "Fast trading";
quote.Sym = "SYM" + i % 20;
wr.Append(quote);
}
wr.Commit();
}
// Query.
// Read all where Sym = "SYM11".
using (var rdr = journal.OpenReadTx())
{
Console.WriteLine(rdr.Items.Where(i => i.Sym == "SYM0").Count());
}
}
public long ShouldHandleDeletedPartitoinAfterRestart(bool clearPartition1, int days)
{
using (WriteJournal(EPartitionType.Month, TimeSpan.FromDays(1), days))
{
}
if (clearPartition1)
{
var newVersion = new PartitionDate(START_DATE, 0, EPartitionType.Month).Name;
Directory.Delete(Path.Combine(_directoryPath, newVersion), true);
}
using (IJournal <PocoType> journal = new JournalBuilder()
.WithLocation(_directoryPath)
.ToJournal <PocoType>())
{
using (var rtx = journal.OpenReadTx())
{
return(rtx.All().Length ?? 0L);
}
}
}