public void Save(Stream stream)
{
using (var writer = new EndianBinaryWriter(stream, Encoding.Default, true, Endianness.BigEndian))
{
var fixups = new List <Tuple <long, Action> >();
writer.Write(( long )mEntryMap.Count);
foreach (var entry in mEntryMap.Values.OrderBy(x => x.Handle))
{
fixups.Add(new Tuple <long, Action>(writer.BaseStream.Position, () =>
{
entry.GetStream().FullyCopyTo(writer.BaseStream);
var padBytes = AlignmentUtils.GetAlignedDifference(writer.BaseStream.Position, 4);
for (int i = 0; i < padBytes; i++)
{
writer.Write(( byte )0);
}
}));
writer.Write(( int )0);
writer.Write(entry.Length);
}
foreach (var fixup in fixups)
{
var offset = writer.BaseStream.Position;
fixup.Item2();
var nextOffset = writer.BaseStream.Position;
writer.BaseStream.Seek(fixup.Item1, SeekOrigin.Begin);
writer.Write((int)offset);
writer.BaseStream.Seek(nextOffset, SeekOrigin.Begin);
}
}
}
public void Load(Stream stream, bool ownsStream)
{
mBaseStream = stream;
mOwnsStream = ownsStream;
using (var reader = new EndianBinaryReader(stream, Encoding.Default, true, Endianness.LittleEndian))
{
while (reader.Position < reader.BaseStreamLength)
{
var type = reader.ReadByte();
if (type == 0xFF) // end
{
break;
}
var isCompressed = reader.ReadBoolean();
var userId = reader.ReadInt16();
var length = reader.ReadInt32() - 16;
var extension = reader.ReadString(StringBinaryFormat.FixedLength, 4);
var decompressedLength = reader.ReadInt32();
var offset = ( int )reader.Position;
var entry = new StoredEntry(AllocateHandle(), mBaseStream, offset, type, isCompressed, userId, length, extension, decompressedLength);
mEntryMap[entry.Handle] = entry;
reader.SeekCurrent(length);
reader.Position = AlignmentUtils.Align(reader.Position, 64);
}
}
}
public void ComputeWorstAlignmentOnTrace()
{
// Act
var trace = MakeTrace();
//DEFAULT TRACE COST
Assert.AreEqual(5, AlignmentUtils.ComputeWorstCostOfTrace(trace));
//MODIFIED TRACE COST
Assert.AreEqual(10, AlignmentUtils.ComputeWorstCostOfTrace(trace, 2));
}
public void ComputeWorstAlignmentOnHardModel()
{
// Arrange
ImportedEventLog elog = CSVImport.MakeDataFrame(hardCsv);
elog.SetActivity("act");
elog.SetCaseId("id");
WorkflowLog wlog = new WorkflowLog(elog);
PetriNet petriNet = CNetUtils.ConvertCNetToPetriNet(HeuristicMiner.MineCNet(wlog));
// Act
var cost = AlignmentUtils.ComputeWorstCostOfModel(petriNet, 1);
// Assert
Assert.AreEqual(7, cost);
}
public void MakePetriNetFromTraceTest()
{
// Act
var traceNet = AlignmentUtils.MakePNetFromTrace(MakeTrace());
// Asserts
Assert.AreEqual("p0'", traceNet.StartPlace.Id);
Assert.AreEqual("p5'", traceNet.EndPlace.Id);
Assert.AreEqual(6, traceNet.Places.Count);
Assert.AreEqual(5, traceNet.Transitions.Count);
//EACH TRANSITION HAS 1 INPUT AND OUTPUT
foreach (var t in traceNet.Transitions)
{
Assert.AreEqual(1, t.InputPlaces.Count);
Assert.AreEqual(1, t.OutputPlaces.Count);
}
}
public void SyncNetAdvancedCustom()
{
// Arrange
var trace = new WorkflowTrace("0");
trace.Activities.Add("register");
trace.Activities.Add("decide");
trace.Activities.Add("register");
trace.Activities.Add("send money");
trace.Activities.Add("inform acceptance");
var tNet = AlignmentUtils.MakePNetFromTrace(trace);
List <ITransition> transitions = new List <ITransition>();
List <IPlace> places = new List <IPlace>();
for (int i = 1; i < 13; i++)
{
places.Add(new Place("p" + i));
}
transitions.Add(new Transition("t1", "register"));
transitions[^ 1].InputPlaces.Add(places[0]);
public void SyncNetHard()
{
// Arrange
ImportedEventLog elog = CSVImport.MakeDataFrame(hardCsv);
elog.SetActivity("act");
elog.SetCaseId("id");
WorkflowLog wlog = new WorkflowLog(elog);
var tNet = AlignmentUtils.MakePNetFromTrace(wlog.WorkflowTraces[23]);
var pNet = CNetUtils.ConvertCNetToPetriNet(HeuristicMiner.MineCNet(wlog));
// Act
var syncNet = new SynchronousProductNet(tNet, pNet);
// Assert
Assert.AreEqual(syncNet.Places.Count, pNet.Places.Count + tNet.Places.Count);
Assert.AreEqual(pNet.Transitions.Count + 2 * tNet.Transitions.Count, syncNet.Transitions.Count);
Assert.IsTrue(syncNet.EndPlaces.SetEquals(new HashSet <IPlace> {
tNet.EndPlace, pNet.EndPlace
}));
Assert.IsTrue(syncNet.StartPlaces.SetEquals(new HashSet <IPlace> {
tNet.StartPlace, pNet.StartPlace
}));
}
public void Save(Stream stream)
{
using (var writer = new EndianBinaryWriter(stream, Encoding.Default, true, IsBigEndian ? Endianness.BigEndian : Endianness.LittleEndian))
{
if (Version == FormatVersion.Version2 || Version == FormatVersion.Version2BE || Version == FormatVersion.Version3 || Version == FormatVersion.Version3BE)
{
writer.Write(mEntryMap.Count);
}
int nameLength;
switch (Version)
{
case FormatVersion.Version1:
nameLength = 252;
break;
case FormatVersion.Version2:
case FormatVersion.Version2BE:
nameLength = 32;
break;
case FormatVersion.Version3:
case FormatVersion.Version3BE:
nameLength = 24;
break;
default:
throw new NotImplementedException("Invalid format version");
}
foreach (var entry in mEntryMap.Values)
{
// write entry name
for (int j = 0; j < nameLength; j++)
{
byte b = 0;
if (j < entry.FileName.Length)
{
b = ( byte )entry.FileName[j];
}
writer.Write(b);
}
var entryLength = entry.Length;
var paddingByteCount = 0;
if (Version != FormatVersion.Version1)
{
paddingByteCount = AlignmentUtils.GetAlignedDifference(entry.Length, 32);
entryLength += paddingByteCount;
}
// write entry length
writer.Write(entryLength);
// write data
var dataStream = entry.GetStream();
dataStream.FullyCopyTo(writer.BaseStream);
switch (Version)
{
case FormatVersion.Version1:
{
paddingByteCount = AlignmentUtils.GetAlignedDifference(writer.BaseStream.Position, 64);
for (int i = 0; i < paddingByteCount; i++)
{
writer.Write(( byte )0);
}
}
break;
case FormatVersion.Version2:
case FormatVersion.Version2BE:
case FormatVersion.Version3:
case FormatVersion.Version3BE:
{
for (int i = 0; i < paddingByteCount; i++)
{
writer.Write(( byte )0);
}
}
break;
default:
throw new NotImplementedException("Invalid format version");
}
}
if (Version == FormatVersion.Version1)
{
for (int i = 0; i < 256; i++)
{
writer.Write(( byte )0);
}
}
}
}
private void ReadEntries()
{
mEntryMap = new Dictionary <string, IEntry>(StringComparer.InvariantCultureIgnoreCase);
using (var reader = new EndianBinaryReader(mBaseStream, Encoding.Default, true, IsBigEndian ? Endianness.BigEndian : Endianness.LittleEndian))
{
var stringBuilder = new StringBuilder();
if (Version == FormatVersion.Version1)
{
while (true)
{
long entryStartPosition = reader.BaseStream.Position;
if (entryStartPosition == reader.BaseStream.Length)
{
break;
}
// read entry name
while (true)
{
byte b = reader.ReadByte();
if (b == 0)
{
break;
}
stringBuilder.Append(( char )b);
// just to be safe
if (stringBuilder.Length == 252)
{
break;
}
}
string fileName = stringBuilder.ToString();
// set position to length field
reader.BaseStream.Position = entryStartPosition + 252;
// read entry length
int length = reader.ReadInt32();
if (fileName.Length == 0 || length <= 0 || length > 1024 * 1024 * 100)
{
break;
}
// make an entry
var entry = new StoredEntry(mBaseStream, fileName, length, ( int )reader.BaseStream.Position);
// clear string builder for next iteration
stringBuilder.Clear();
reader.BaseStream.Position = AlignmentUtils.Align(reader.BaseStream.Position + entry.Length, 64);
mEntryMap[entry.FileName] = entry;
}
}
else if (Version == FormatVersion.Version2 || Version == FormatVersion.Version2BE || Version == FormatVersion.Version3 || Version == FormatVersion.Version3BE)
{
int entryCount = reader.ReadInt32();
int nameLength = 32;
if (Version == FormatVersion.Version3)
{
nameLength = 24;
}
for (int i = 0; i < entryCount; i++)
{
long entryStartPosition = reader.BaseStream.Position;
if (entryStartPosition == reader.BaseStream.Length)
{
break;
}
// read entry name
for (int j = 0; j < nameLength; j++)
{
byte b = reader.ReadByte();
if (b != 0)
{
stringBuilder.Append(( char )b);
}
}
string fileName = stringBuilder.ToString();
// read entry length
int length = reader.ReadInt32();
if (fileName.Length == 0 || length <= 0 || length > 1024 * 1024 * 100)
{
break;
}
// make an entry
var entry = new StoredEntry(mBaseStream, fileName, length, ( int )reader.BaseStream.Position);
// clear string builder for next iteration
stringBuilder.Clear();
reader.BaseStream.Position += entry.Length;
mEntryMap[entry.FileName] = entry;
}
}
}
}
