public void RollbackChangesToAFile()
{
string fileName = @"C:\Temp\ArchiveFile.d2";
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeFile file = SortedTreeFile.OpenFile(fileName, isReadOnly: false))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> editor = table.BeginEdit())
{
key.TimestampAsDate = DateTime.Now.AddDays(-1);
key.PointID = 234;
value.AsString = "Add Me";
editor.AddPoint(key, value);
editor.Commit();
}
using (SortedTreeTableEditor <HistorianKey, HistorianValue> editor = table.BeginEdit())
{
key.Timestamp = 31;
value.AsString = "But Not Me";
editor.AddPoint(key, value);
editor.Rollback(); //These changes will not be written to the disk
}
}
ReadDataFromAFile();
}
public void EnduranceTest()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeTable <HistorianKey, HistorianValue> target = SortedTreeFile.CreateInMemory().OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
for (uint x = 0; x < 100; x++)
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> fileEditor = target.BeginEdit())
{
for (int y = 0; y < 10; y++)
{
key.Timestamp = x;
key.PointID = x;
value.Value1 = x;
value.Value3 = x;
fileEditor.AddPoint(key, value);
x++;
}
fileEditor.Commit();
}
Assert.AreEqual(target.FirstKey.Timestamp, 0);
Assert.AreEqual(target.LastKey.Timestamp, x - 1);
}
}
}
public void WriteFile()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
if (File.Exists("c:\\temp\\ArchiveTestFileBig.d2"))
{
File.Delete("c:\\temp\\ArchiveTestFileBig.d2");
}
//using (var af = ArchiveFile.CreateInMemory(CompressionMethod.TimeSeriesEncoded))
using (SortedTreeFile af = SortedTreeFile.CreateFile("c:\\temp\\ArchiveTestFileBig.d2"))
using (SortedTreeTable <HistorianKey, HistorianValue> af2 = af.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
Random r = new Random(3);
for (ulong v1 = 1; v1 < 36; v1++)
{
using (var edit = af2.BeginEdit())
{
for (ulong v2 = 1; v2 < 86000; v2++)
{
key.Timestamp = v1 * 2342523;
key.PointID = v2;
value.Value1 = (ulong)r.Next();
value.Value3 = 0;
edit.AddPoint(key, value);
}
edit.Commit();
}
af2.Count();
}
af2.Count();
}
}
public void GetDifference()
{
StringBuilder sb = new StringBuilder();
sb.AppendLine("Bucket Number, Count");
using (SortedTreeFile file = SortedTreeFile.OpenFile(@"C:\Unison\GPA\Codeplex\openHistorian\Main\Build\Output\Release\Applications\openHistorian\Archive\635293583194231435-Stage2-0ef36dcc-4264-498f-b194-01b2043a9231.d2", true))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenTable <HistorianKey, HistorianValue>())
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> reader = table.BeginRead())
using (SortedTreeScannerBase <HistorianKey, HistorianValue> scan = reader.GetTreeScanner())
{
HistorianKey key1 = new HistorianKey();
HistorianKey key2 = new HistorianKey();
HistorianValue value = new HistorianValue();
int count = 0;
scan.SeekToStart();
while (scan.Read(key1, value))
{
count++;
}
int[] bucket = new int[130];
scan.SeekToStart();
while (true)
{
if (!scan.Read(key1, value))
{
break;
}
if (key1.Timestamp == key2.Timestamp)
{
int diff = Math.Abs((int)(key1.PointID - key2.PointID));
diff = Math.Min(129, diff);
bucket[diff]++;
}
if (!scan.Read(key2, value))
{
break;
}
if (key1.Timestamp == key2.Timestamp)
{
int diff = Math.Abs((int)(key1.PointID - key2.PointID));
diff = Math.Min(129, diff);
bucket[diff]++;
}
}
for (uint x = 0; x < bucket.Length; x++)
{
sb.AppendLine(x.ToString() + "," + (bucket[x] / (double)count * 100.0).ToString("0.00"));
}
}
Console.WriteLine(sb.ToString());
}
public void TestSmall()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <HistorianKey, HistorianValue> file = af.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> edit = file.BeginEdit())
{
for (int x = 0; x < 10000000; x++)
{
key.Timestamp = (ulong)x;
edit.AddPoint(key, value);
}
edit.Commit();
}
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> read = file.BeginRead())
using (SortedTreeScannerBase <HistorianKey, HistorianValue> scan = read.GetTreeScanner())
{
int count = 0;
scan.SeekToStart();
while (scan.Read(key, value))
{
count++;
}
System.Console.WriteLine(count.ToString());
}
}
}
SortedTreeTable <HistorianKey, HistorianValue> CreateTable()
{
SortedTreeFile file = SortedTreeFile.CreateInMemory();
SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding);
return(table);
}
public void TestBulkRolloverFile()
{
Stats.LookupKeys = 0;
DiskIoSession.ReadCount = 0;
DiskIoSession.WriteCount = 0;
Stats.ChecksumCount = 0;
DiskIoSession.Lookups = 0;
DiskIoSession.CachedLookups = 0;
long cnt;
Stopwatch sw = new Stopwatch();
sw.Start();
//using (SortedTreeTable<HistorianKey, HistorianValue> af = SortedTreeFile.CreateInMemory(4096).OpenOrCreateTable<HistorianKey, HistorianValue>(SortedTree.FixedSizeNode))
using (SortedTreeTable <HistorianKey, HistorianValue> af = SortedTreeFile.CreateInMemory(blockSize: 4096).OpenOrCreateTable <HistorianKey, HistorianValue>(HistorianFileEncodingDefinition.TypeGuid))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> edit = af.BeginEdit())
{
edit.AddPoints(new PointStreamSequentialPoints(1, 20000000));
edit.Commit();
}
sw.Stop();
cnt = af.Count();
System.Console.WriteLine(cnt);
}
System.Console.WriteLine((float)(20 / sw.Elapsed.TotalSeconds));
}
public void GetBits()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
StringBuilder sb = new StringBuilder();
sb.AppendLine("Higher Bits, Bucket Number, Count, FloatValue");
using (SortedTreeFile file = SortedTreeFile.OpenFile(@"C:\Archive\635184227258021940-Stage2-8b835d6a-8299-45bb-9624-d4a470e4abe1.d2", true))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenTable <HistorianKey, HistorianValue>())
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> reader = table.BeginRead())
using (SortedTreeScannerBase <HistorianKey, HistorianValue> scan = reader.GetTreeScanner())
{
int count = 0;
scan.SeekToStart();
while (scan.Read(key, value))
{
count++;
}
for (int x = 1; x < 24; x++)
{
scan.SeekToStart();
int[] bucket = MeasureBits(scan, x);
Write(sb, bucket, x, count);
}
}
Console.WriteLine(sb.ToString());
}
public void ReadDataFromAFile()
{
string fileName = @"c:\temp\Tulsa Bank 1 LTC 1.d2";
DateTime start = DateTime.Parse("4/17/2013 10:38 AM");
DateTime stop = DateTime.Parse("4/17/2013 10:38 AM");
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (var file = SortedTreeFile.OpenFile(fileName, isReadOnly: true))
using (var table = file.OpenTable <HistorianKey, HistorianValue>())
using (var snapshot = table.BeginRead())
{
var scanner = snapshot.GetTreeScanner();
var seekKey = new HistorianKey();
seekKey.TimestampAsDate = start;
seekKey.PointID = 3142023;
scanner.SeekToKey(seekKey);
while (scanner.Read(key, value) && key.TimestampAsDate <= stop)
{
Console.WriteLine("{0}, {1}, {2}",
key.TimestampAsDate.ToString(), key.PointID, value.AsString);
}
}
}
public void TestFile()
{
// FilePath "C:\\Temp\\Historian\\635287587300536177-Stage1-d559e63e-d938-46a9-8d57-268f7c8ba194.d2" string
//635329017197429979-Stage1-38887e11-4097-4937-b269-ce4037157691.d2
//using (var file = SortedTreeFile.OpenFile(@"C:\Temp\Historian\635287587300536177-Stage1-d559e63e-d938-46a9-8d57-268f7c8ba194.d2", true))
using (var file = SortedTreeFile.OpenFile(@"C:\Archive\635329017197429979-Stage1-38887e11-4097-4937-b269-ce4037157691.d2", true))
//using (var file = SortedTreeFile.OpenFile(@"C:\Temp\Historian\635255664136496199-Stage2-6e758046-b2af-40ff-ae4e-85cd0c0e4501.d2", true))
using (var table = file.OpenTable <HistorianKey, HistorianValue>())
using (var reader = table.BeginRead())
{
var scanner = reader.GetTreeScanner();
scanner.SeekToStart();
scanner.TestSequential().Count();
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
int x = 0;
scanner.Peek(key, value);
while (scanner.Read(key, value) && x < 10000)
{
System.Console.WriteLine(key.PointID);
x++;
scanner.Peek(key, value);
}
scanner.Count();
}
}
private void StartStream(object args)
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (HistorianClient client = new HistorianClient("127.0.0.1", 54996))
using (ClientDatabaseBase <HistorianKey, HistorianValue> database = client.GetDatabase <HistorianKey, HistorianValue>(string.Empty))
{
using (SortedTreeTable <HistorianKey, HistorianValue> file = SortedTreeFile.OpenFile(@"H:\OGE 2009.d2", isReadOnly: true).OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> read = file.BeginRead())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scan = read.GetTreeScanner();
scan.SeekToStart();
long count = 0;
while (scan.Read(key, value))
{
count++;
database.Write(key, value);
if ((count % 10) == 1)
{
Thread.Sleep(1);
}
}
}
}
}
}
public void ReadFromAFileWhileWritingToIt()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
string fileName = @"C:\Temp\ArchiveFile.d2";
using (SortedTreeFile file = SortedTreeFile.OpenFile(fileName, isReadOnly: false))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenTable <HistorianKey, HistorianValue>())
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> writer = table.BeginEdit())
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> reader = table.BeginRead())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner = reader.GetTreeScanner();
scanner.SeekToStart();
while (scanner.Read(key, value))
{
key.Timestamp++;
value.Value1++;
writer.AddPoint(key, value);
}
writer.Commit();
}
}
ReadDataFromAFile();
}
private void TestFile(int pageSize, string fileName)
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
key.Timestamp = 1;
if (File.Exists(fileName))
{
File.Delete(fileName);
}
Stopwatch sw = new Stopwatch();
sw.Start();
using (SortedTreeTable <HistorianKey, HistorianValue> af = SortedTreeFile.CreateFile(fileName, blockSize: pageSize).OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
using (SortedTreeTableEditor <HistorianKey, HistorianValue> edit = af.BeginEdit())
{
for (uint x = 0; x < 1000000; x++)
{
key.PointID = x;
edit.AddPoint(key, value);
}
edit.Commit();
}
sw.Stop();
System.Console.WriteLine("Size: " + pageSize + " Rate: " + (1 / sw.Elapsed.TotalSeconds).ToString());
}
public void TestCompressed()
{
int count = 10000000;
Stopwatch sw = new Stopwatch();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <AmiKey, AmiValue> table = af.OpenOrCreateTable <AmiKey, AmiValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <AmiKey, AmiValue> edit = table.BeginEdit())
{
sw.Start();
AmiKey key = new AmiKey();
AmiValue value = new AmiValue();
for (int x = 0; x < count; x++)
{
key.Timestamp = (uint)x;
edit.AddPoint(key, value);
}
edit.Commit();
sw.Stop();
Console.WriteLine(af.ArchiveSize / 1024.0 / 1024.0);
Console.WriteLine(count / sw.Elapsed.TotalSeconds / 1000000);
}
}
}
private TestResults TestRandom(int pageSize, uint count)
{
//StringBuilder sb = new StringBuilder();
Random R = new Random(1);
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
DiskIoSession.ReadCount = 0;
DiskIoSession.WriteCount = 0;
Stats.ChecksumCount = 0;
DiskIoSession.Lookups = 0;
DiskIoSession.CachedLookups = 0;
Stopwatch sw = new Stopwatch();
sw.Start();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory(blockSize: pageSize))
using (SortedTreeTable <HistorianKey, HistorianValue> af2 = af.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
uint pointPairs = count / 5000;
for (uint i = 0; i < pointPairs; i++)
{
uint max = i * 5000 + 5000;
using (var edit = af2.BeginEdit())
{
for (ulong x = i * 5000; x < max; x++)
{
key.Timestamp = (uint)R.Next();
key.PointID = 2 * x;
value.Value3 = 3 * x;
value.Value1 = 4 * x;
//if ((x % 100) == 0)
// sb.AppendLine(x + "," + DiskIoSession.ReadCount + "," + DiskIoSession.WriteCount);
//if (x == 1000)
// DiskIoSession.BreakOnIO = true;
edit.AddPoint(key, value);
//edit.AddPoint(uint.MaxValue - x, 2 * x, 3 * x, 4 * x);
}
edit.Commit();
}
}
//long cnt = af.Count();
}
sw.Stop();
//File.WriteAllText(@"C:\temp\" + pageSize + ".csv",sb.ToString());
return(new TestResults()
{
PageSize = pageSize,
Rate = (float)(count / sw.Elapsed.TotalSeconds / 1000000),
ReadCount = DiskIoSession.ReadCount,
WriteCount = DiskIoSession.WriteCount,
ChecksumCount = Stats.ChecksumCount,
Lookups = DiskIoSession.Lookups,
CachedLookups = DiskIoSession.CachedLookups
});
}
public void AddPointTest()
{
using (SortedTreeTable <HistorianKey, HistorianValue> target = SortedTreeFile.CreateInMemory().OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> fileEditor = target.BeginEdit())
{
fileEditor.AddPoint(new HistorianKey(), new HistorianValue());
fileEditor.Commit();
}
}
}
/// <summary>
/// Creates a new <see cref="SortedTreeTable{TKey,TValue}"/> based on the settings passed to this class.
/// Once created, it is up to he caller to make sure that this class is properly disposed of.
/// </summary>
/// <param name="startKey">the first key in the archive file</param>
/// <param name="endKey">the last key in the archive file</param>
/// <param name="estimatedSize">The estimated size of the file. -1 to ignore this feature and write to the first available directory.</param>
/// <param name="archiveIdCallback">the archiveId to assign to the new file.</param>
/// <returns></returns>
public SortedTreeTable <TKey, TValue> CreateArchiveFile(TKey startKey, TKey endKey, long estimatedSize, TreeStream <TKey, TValue> data, Action <Guid> archiveIdCallback)
{
SimplifiedArchiveInitializerSettings settings = m_settings;
string pendingFile = CreateArchiveName(GetPathWithEnoughSpace(estimatedSize), startKey, endKey);
string finalFile = Path.ChangeExtension(pendingFile, settings.FinalExtension);
SortedTreeFileSimpleWriter <TKey, TValue> .Create(pendingFile, finalFile, 4096, archiveIdCallback, settings.EncodingMethod, data, settings.Flags.ToArray());
return(SortedTreeFile.OpenFile(finalFile, true).OpenTable <TKey, TValue>());
}
public void Test()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeFile file = SortedTreeFile.OpenFile(@"C:\Unison\GPA\Codeplex\openHistorian\Main\Build\Output\Release\Applications\openHistorian\Archive\635293583194231435-Stage2-0ef36dcc-4264-498f-b194-01b2043a9231.d2", true))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenTable <HistorianKey, HistorianValue>())
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> reader = table.BeginRead())
using (SortedTreeScannerBase <HistorianKey, HistorianValue> scan = reader.GetTreeScanner())
{
scan.SeekToStart();
while (scan.Read(key, value))
{
;
}
}
}
public void CreateSnapshotTest()
{
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
key.Timestamp = 1;
key.PointID = 2;
value.Value1 = 3;
value.Value2 = 4;
using (SortedTreeTable <HistorianKey, HistorianValue> target = SortedTreeFile.CreateInMemory().OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
ulong date = 1;
ulong pointId = 2;
ulong value1 = 3;
ulong value2 = 4;
SortedTreeTableSnapshotInfo <HistorianKey, HistorianValue> snap1;
using (SortedTreeTableEditor <HistorianKey, HistorianValue> fileEditor = target.BeginEdit())
{
fileEditor.AddPoint(key, value);
key.Timestamp++;
fileEditor.AddPoint(key, value);
snap1 = target.AcquireReadSnapshot();
fileEditor.Commit();
}
SortedTreeTableSnapshotInfo <HistorianKey, HistorianValue> snap2 = target.AcquireReadSnapshot();
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> instance = snap1.CreateReadSnapshot())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner = instance.GetTreeScanner();
scanner.SeekToStart();
Assert.AreEqual(false, scanner.Read(key, value));
}
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> instance = snap2.CreateReadSnapshot())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner = instance.GetTreeScanner();
scanner.SeekToStart();
Assert.AreEqual(true, scanner.Read(key, value));
Assert.AreEqual(1uL, key.Timestamp);
Assert.AreEqual(2uL, key.PointID);
Assert.AreEqual(3uL, value.Value1);
Assert.AreEqual(4uL, value.Value2);
}
Assert.AreEqual(1uL, target.FirstKey.Timestamp);
Assert.AreEqual(2uL, target.LastKey.Timestamp);
}
}
/// <summary>
/// Creates a new <see cref="SortedTreeTable{TKey,TValue}"/> based on the settings passed to this class.
/// Once created, it is up to he caller to make sure that this class is properly disposed of.
/// </summary>
/// <param name="estimatedSize">The estimated size of the file. -1 to ignore this feature and write to the first available directory.</param>
/// <returns></returns>
public SortedTreeTable <TKey, TValue> CreateArchiveFile(long estimatedSize = -1)
{
using (m_lock.EnterReadLock())
{
if (m_settings.IsMemoryArchive)
{
SortedTreeFile af = SortedTreeFile.CreateInMemory(blockSize: 4096, flags: m_settings.Flags.ToArray());
return(af.OpenOrCreateTable <TKey, TValue>(m_settings.EncodingMethod));
}
else
{
string fileName = CreateArchiveName(GetPathWithEnoughSpace(estimatedSize));
SortedTreeFile af = SortedTreeFile.CreateFile(fileName, blockSize: 4096, flags: m_settings.Flags.ToArray());
return(af.OpenOrCreateTable <TKey, TValue>(m_settings.EncodingMethod));
}
}
}
public void AppendDataToAnExistingFile()
{
string fileName = @"C:\Temp\ArchiveFile.d2";
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeFile file = SortedTreeFile.OpenFile(fileName, isReadOnly: false))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenTable <HistorianKey, HistorianValue>())
using (SortedTreeTableEditor <HistorianKey, HistorianValue> editor = table.BeginEdit())
{
key.TimestampAsDate = DateTime.Now;
key.PointID = 2;
value.AsString = "Test Append";
editor.AddPoint(key, value);
editor.Commit();
}
ReadDataFromAFile();
}
public void BenchmarkWriteSpeed()
{
DebugStopwatch sw = new DebugStopwatch();
double time;
double count = 0;
using (SortedTreeFile file = SortedTreeFile.CreateInMemory())
{
var table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(HistorianFileEncodingDefinition.TypeGuid);
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
time = sw.TimeEvent(() =>
{
//TreeKeyMethodsBase<HistorianKey>.ClearStats();
//TreeValueMethodsBase<HistorianKey>.ClearStats();
count = 0;
using (var scan = table.BeginEdit())
{
for (uint x = 0; x < 10000000; x++)
{
key.PointID = x;
scan.AddPoint(key, value);
count++;
}
scan.Rollback();
}
});
}
Console.WriteLine((count / 1000000 / time).ToString() + " Million PPS");
//Console.WriteLine("KeyMethodsBase calls");
//for (int x = 0; x < 23; x++)
//{
// Console.WriteLine(TreeKeyMethodsBase<HistorianKey>.CallMethods[x] + "\t" + ((TreeKeyMethodsBase<HistorianKey>.Method)(x)).ToString());
//}
//Console.WriteLine("ValueMethodsBase calls");
//for (int x = 0; x < 5; x++)
//{
// Console.WriteLine(TreeValueMethodsBase<HistorianValue>.CallMethods[x] + "\t" + ((TreeValueMethodsBase<HistorianValue>.Method)(x)).ToString());
//}
}
public void ConcurrentReadingFromAFile()
{
string fileName = @"C:\Temp\ArchiveFile.d2";
HistorianKey key1 = new HistorianKey();
HistorianKey key2 = new HistorianKey();
HistorianValue value1 = new HistorianValue();
HistorianValue value2 = new HistorianValue();
using (SortedTreeFile file = SortedTreeFile.OpenFile(fileName, isReadOnly: true))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenTable <HistorianKey, HistorianValue>())
{
SortedTreeTableSnapshotInfo <HistorianKey, HistorianValue> snapshotInfo = table.AcquireReadSnapshot();
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> reader1 = snapshotInfo.CreateReadSnapshot())
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> reader2 = snapshotInfo.CreateReadSnapshot())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner1 = reader1.GetTreeScanner();
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner2 = reader2.GetTreeScanner();
scanner1.SeekToStart();
scanner2.SeekToStart();
bool scanner1Read = scanner1.Read(key1, value1);
bool scanner2Read = scanner2.Read(key2, value2);
while (scanner1Read && scanner2Read)
{
Assert.AreEqual(key1.Timestamp, key2.Timestamp);
Assert.AreEqual(key1.PointID, key2.PointID);
Assert.AreEqual(key1.EntryNumber, key2.EntryNumber);
Assert.AreEqual(value1.Value1, value2.Value1);
Assert.AreEqual(value1.Value2, value2.Value2);
Assert.AreEqual(value1.Value3, value2.Value3);
scanner1Read = scanner1.Read(key1, value1);
scanner2Read = scanner2.Read(key2, value2);
}
}
}
ReadDataFromAFile();
}
public void TestRollover()
{
int count = 1000000;
Stopwatch sw = new Stopwatch();
using (SortedTreeFile af = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <AmiKey, AmiKey> table = af.OpenOrCreateTable <AmiKey, AmiKey>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <AmiKey, AmiKey> edit = table.BeginEdit())
{
sw.Start();
AmiKey key = new AmiKey();
AmiKey value = new AmiKey();
for (int x = 0; x < count; x++)
{
key.Timestamp = (uint)x;
edit.AddPoint(key, value);
}
edit.Commit();
sw.Stop();
Console.WriteLine(af.ArchiveSize / 1024.0 / 1024.0);
Console.WriteLine(count / sw.Elapsed.TotalSeconds / 1000000);
}
using (SortedTreeFile af2 = SortedTreeFile.CreateInMemory())
using (SortedTreeTable <AmiKey, AmiKey> table2 = af2.OpenOrCreateTable <AmiKey, AmiKey>(new EncodingDefinition(EncodingDefinition.FixedSizeCombinedEncoding.KeyValueEncodingMethod, EncodingDefinition.FixedSizeCombinedEncoding.KeyValueEncodingMethod)))
using (SortedTreeTableEditor <AmiKey, AmiKey> edit = table2.BeginEdit())
{
using (SortedTreeTableReadSnapshot <AmiKey, AmiKey> read = table.BeginRead())
using (SortedTreeScannerBase <AmiKey, AmiKey> scan = read.GetTreeScanner())
{
scan.SeekToStart();
edit.AddPoints(scan);
}
}
Console.WriteLine(count);
}
}
public void ReadDataFromAFile()
{
string fileName = @"C:\Temp\ArchiveFile.d2";
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeFile file = SortedTreeFile.OpenFile(fileName, isReadOnly: true))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenTable <HistorianKey, HistorianValue>())
using (SortedTreeTableReadSnapshot <HistorianKey, HistorianValue> snapshot = table.BeginRead())
{
SortedTreeScannerBase <HistorianKey, HistorianValue> scanner = snapshot.GetTreeScanner();
scanner.SeekToStart();
while (scanner.Read(key, value))
{
Console.WriteLine("{0}, {1}, {2}",
key.TimestampAsDate.ToString(), key.PointID, value.AsString);
}
}
}
public void TestReadDataFromArchive()
{
DebugStopwatch sw = new DebugStopwatch();
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
string path = Directory.GetFiles(@"c:\temp\Scada\", "*.d2")[0];
double time;
double count = 0;
using (SortedTreeFile file = SortedTreeFile.OpenFile(path, true))
{
var table = file.OpenTable <HistorianKey, HistorianValue>();
time = sw.TimeEvent(() =>
{
count = 0;
using (var scan = table.BeginRead())
{
var t = scan.GetTreeScanner();
t.SeekToStart();
while (t.Read(key, value))
{
count++;
}
}
});
}
Console.WriteLine((count / 1000000 / time).ToString() + " Million PPS");
//Console.WriteLine("KeyMethodsBase calls");
//for (int x = 0; x < 23; x++)
//{
// Console.WriteLine(TreeKeyMethodsBase<HistorianKey>.CallMethods[x] + "\t" + ((TreeKeyMethodsBase<HistorianKey>.Method)(x)).ToString());
//}
//Console.WriteLine("ValueMethodsBase calls");
//for (int x = 0; x < 5; x++)
//{
// Console.WriteLine(TreeValueMethodsBase<HistorianValue>.CallMethods[x] + "\t" + ((TreeValueMethodsBase<HistorianValue>.Method)(x)).ToString());
//}
}
private TestResults Test(int pageSize)
{
Stats.LookupKeys = 0;
DiskIoSession.ReadCount = 0;
DiskIoSession.WriteCount = 0;
Stats.ChecksumCount = 0;
DiskIoSession.Lookups = 0;
DiskIoSession.CachedLookups = 0;
long cnt;
Stopwatch sw = new Stopwatch();
Stopwatch sw2 = new Stopwatch();
sw.Start();
using (SortedTreeTable <HistorianKey, HistorianValue> af = SortedTreeFile.CreateInMemory(blockSize: pageSize).OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
{
using (SortedTreeTableEditor <HistorianKey, HistorianValue> edit = af.BeginEdit())
{
for (int x = 0; x < 100; x++)
{
edit.AddPoints(new PointStreamSequential(x * 10000, 10000));
}
edit.Commit();
}
sw.Stop();
sw2.Start();
cnt = af.Count();
sw2.Stop();
}
return(new TestResults()
{
Count = cnt,
PageSize = pageSize,
RateWrite = (float)(1 / sw.Elapsed.TotalSeconds),
RateRead = (float)(1 / sw2.Elapsed.TotalSeconds),
ReadCount = DiskIoSession.ReadCount,
WriteCount = DiskIoSession.WriteCount,
ChecksumCount = Stats.ChecksumCount,
Lookups = DiskIoSession.Lookups,
CachedLookups = DiskIoSession.CachedLookups
});
}
public void TestFixed()
{
int count = 10000000;
Stopwatch sw = new Stopwatch();
using (var af = SortedTreeFile.CreateInMemory())
using (var table = af.OpenOrCreateTable <AmiKey, AmiKey>(EncodingDefinition.FixedSizeCombinedEncoding))
{
var key = new AmiKey();
var value = new AmiKey();
using (var edit = table.BeginEdit())
{
sw.Start();
for (int x = 0; x < count; x++)
{
key.Timestamp = (uint)x;
edit.AddPoint(key, value);
}
edit.Commit();
sw.Stop();
Console.WriteLine(af.ArchiveSize / 1024.0 / 1024.0);
Console.WriteLine(count / sw.Elapsed.TotalSeconds / 1000000);
}
using (var read = table.BeginRead())
using (var scan = read.GetTreeScanner())
{
scan.SeekToStart();
while (scan.Read(key, value))
{
count--;
}
}
Console.WriteLine(count);
}
}
public void WriteDataToAFile()
{
Logger.Console.Verbose = VerboseLevel.All;
string fileName = @"C:\Temp\ArchiveFile.d2";
if (File.Exists(fileName))
{
File.Delete(fileName);
}
HistorianKey key = new HistorianKey();
HistorianValue value = new HistorianValue();
using (SortedTreeFile file = SortedTreeFile.CreateFile(fileName))
using (SortedTreeTable <HistorianKey, HistorianValue> table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding))
using (SortedTreeTableEditor <HistorianKey, HistorianValue> editor = table.BeginEdit())
{
key.TimestampAsDate = DateTime.Now;
key.PointID = 1;
value.AsString = "Test Write";
editor.AddPoint(key, value);
editor.Commit();
}
}
SortedTreeTable <HistorianKey, HistorianValue> CreateTable()
{
var r = new Random(seed++);
var key = new HistorianKey();
var value = new HistorianValue();
var file = SortedTreeFile.CreateInMemory();
var table = file.OpenOrCreateTable <HistorianKey, HistorianValue>(EncodingDefinition.FixedSizeCombinedEncoding);
using (var edit = table.BeginEdit())
{
for (int x = 0; x < 1000; x++)
{
key.Timestamp = (ulong)r.Next();
key.PointID = (ulong)r.Next();
key.EntryNumber = (ulong)r.Next();
edit.AddPoint(key, value);
}
edit.Commit();
}
return(table);
}
