public DependenciesSnapshotProvider(
IUnconfiguredProjectCommonServices commonServices,
Lazy <AggregateCrossTargetProjectContextProvider> contextProvider,
IUnconfiguredProjectTasksService tasksService,
IActiveConfiguredProjectSubscriptionService activeConfiguredProjectSubscriptionService,
IActiveProjectConfigurationRefreshService activeProjectConfigurationRefreshService,
ITargetFrameworkProvider targetFrameworkProvider)
: base(commonServices.ThreadingService.JoinableTaskContext)
{
_commonServices = commonServices;
_tasksService = tasksService;
_activeConfiguredProjectSubscriptionService = activeConfiguredProjectSubscriptionService;
_targetFrameworkProvider = targetFrameworkProvider;
_dependencySubscribers = new OrderPrecedenceImportCollection <IDependencyCrossTargetSubscriber>(
projectCapabilityCheckProvider: commonServices.Project);
_snapshotFilters = new OrderPrecedenceImportCollection <IDependenciesSnapshotFilter>(
ImportOrderPrecedenceComparer.PreferenceOrder.PreferredComesLast,
projectCapabilityCheckProvider: commonServices.Project);
_subTreeProviders = new OrderPrecedenceImportCollection <IProjectDependenciesSubTreeProvider>(
ImportOrderPrecedenceComparer.PreferenceOrder.PreferredComesLast,
projectCapabilityCheckProvider: commonServices.Project);
_context = new ContextTracker(targetFrameworkProvider, commonServices, contextProvider, activeProjectConfigurationRefreshService);
_snapshot = new SnapshotUpdater(commonServices.ThreadingService, tasksService.UnloadCancellationToken);
_disposables = new DisposableBag {
_snapshot, _contextUpdateGate
};
}
protected override void BeginProcessing()
{
if (this.encoding != null)
{
this.textEncoding = EncodingConversion.Convert(this, this.encoding);
}
else
{
this.textEncoding = new UTF8Encoding();
}
if (!this.simpleMatch)
{
RegexOptions options = this.caseSensitive ? RegexOptions.None : RegexOptions.IgnoreCase;
this.regexPattern = new Regex[this.pattern.Length];
for (int i = 0; i < this.pattern.Length; i++)
{
try
{
this.regexPattern[i] = new Regex(this.pattern[i], options);
}
catch (Exception exception)
{
base.ThrowTerminatingError(BuildErrorRecord(MatchStringStrings.InvalidRegex, this.pattern[i], exception.Message, "InvalidRegex", exception));
throw;
}
}
}
this.globalContextTracker = new ContextTracker(this.preContext, this.postContext);
}
public void TestInit1()
{
var context = new PhysicalContext <int>(0.1, 1);
var entity = new PointMass(new AxisStatus(1, 3), new AxisStatus(0, 0), new AxisStatus(0, 0), 1);
context.AddEntity(0, entity);
var tracker = new ContextTracker <int, double>(context, c => c[0].X.Position);
AreEqual(1, tracker[0]);
AreEqual(0ul, tracker.ObservationBeginTick);
ThrowsException <ArgumentOutOfRangeException>(() => tracker[2]);
context.Tick(0.5);
AreEqual(1, tracker[0]);
var pos05 = context[0].X.Position;
AreEqual(pos05, tracker[5]);
AreEqual(pos05, tracker.GetApproximately(0.5));
context.Tick(0.5);
AreEqual(1, tracker[0]);
AreEqual(pos05, tracker.GetApproximately(0.5));
AreEqual(pos05, tracker.GetApproximately(0.478));
AreEqual(pos05, tracker.GetApproximately(0.505));
AreEqual(context[0].X.Position, tracker[context.Ticks]);
}
public void TestDispose()
{
var context = new PhysicalContext <int>(0.1, 2);
var entity = new PointMass(0, 0, 0, 1);
context.AddEntity(0, entity, c => new Force(1, 0, 0));
context.AddEntity(1, entity, c => new Force(1, 0, 0));
context.Tick(1);
var tracker = new ContextTracker <int, int>(context, c => (int)Math.Round(c[0].X.Velocity + c[1].X.Velocity));
AreEqual(2, tracker[context.Ticks]);
AreEqual(10ul, tracker.ObservationBeginTick);
ThrowsException <ArgumentOutOfRangeException>(() => tracker.GetApproximately(0));
ThrowsException <ArgumentOutOfRangeException>(() => tracker.GetApproximately(2));
context.Tick(1);
AreEqual(2, tracker.GetApproximately(1));
AreEqual(1, tracker.ObservationBeginTime);
AreEqual(4, tracker[context.Ticks]);
AreEqual(20ul, tracker.LastObservedTick);
tracker.Dispose();
context.Tick(1);
AreEqual(20ul, tracker.LastObservedTick);
ThrowsException <ArgumentOutOfRangeException>(() => tracker[context.Ticks]);
}
public void Execute(object book)
{
Book bookModel = Mapper.Instance.Map <Book>(book);
bookModel.Id = Guid.NewGuid();
ContextTracker.AttackBookRelatedEntries(bookModel);
ApplicationDbContext.Instance.Entry(bookModel).State = EntityState.Added;
ApplicationDbContext.Instance.SaveChanges();
ApplicationDbContext.Instance.ChangeTracker.Clear();
}
public void Execute(object book)
{
Book bookModel = Mapper.Instance.Map <Book>(book);
ContextTracker.AttackBookRelatedEntries(bookModel);
var bookFromDb = ApplicationDbContext.Instance.Books
.Include(a => a.Authors)
.Include(a => a.Categories)
.Include(a => a.PublishingHouse)
.Include(a => a.Series)
.Include(a => a.StoragePlace)
.Single(a => a.Id == bookModel.Id);
Mapper.Instance.Map(bookModel, bookFromDb);
ApplicationDbContext.Instance.SaveChanges();
}
public void TestStoryboard()
{
var context = new PhysicalContext <int>(1, 1);
var entity = new PointMass(new AxisStatus(0, 1), new AxisStatus(1, 0), new AxisStatus(0, 0), 1);
context.AddEntity(0, entity);
var tracker = new ContextTracker <int, double>(context, c => c[0].X.Position);
AreEqual(1, tracker.Count);
IsTrue(tracker.Keys.Contains <ulong>(0));
context.Tick();
AreEqual(2, tracker.Count);
IsTrue(tracker.Keys.Contains <ulong>(0));
IsTrue(tracker.Keys.Contains <ulong>(1));
IsFalse(tracker.Keys.Contains <ulong>(2));
}
public void TestInterval()
{
ulong[] intervals = { 1, 3, 11, 100 };
foreach (var i in intervals)
{
var context = new PhysicalContext <int>(1, 1);
var entity = new PointMass(new AxisStatus(0, 1), new AxisStatus(1, 0), new AxisStatus(0, 0), 1);
context.AddEntity(0, entity);
var tracker = new ContextTracker <int, double>(context, c => c[0].X.Position, i);
context.Tick(42);
AreEqual((int)(42 / i + 1), tracker.Count);
AreEqual(42 - 42 % i, tracker.LastRecordTick);
ThrowsException <ArgumentOutOfRangeException>(() => tracker[43]);
if (i > 1)
{
ThrowsException <ArgumentOutOfRangeException>(() => tracker[i + 1]);
}
var noException = tracker[0];
}
}
private bool FlushTrackerQueue(ContextTracker contextTracker)
{
if (contextTracker.EmitQueue.Count < 1)
{
return(false);
}
if (this.quiet && !this.list)
{
base.WriteObject(true);
}
else if (this.list)
{
base.WriteObject(contextTracker.EmitQueue[0]);
}
else
{
foreach (MatchInfo info in contextTracker.EmitQueue)
{
base.WriteObject(info);
}
}
contextTracker.EmitQueue.Clear();
return(true);
}
private bool doMatch(object operand, out MatchInfo matchResult, out string operandString)
{
bool success = false;
Match[] array = null;
int index = 0;
matchResult = null;
MatchInfo info = operand as MatchInfo;
if (info != null)
{
operandString = info.Line;
if ((this.preContext > 0) || (this.postContext > 0))
{
this.preContext = 0;
this.postContext = 0;
this.globalContextTracker = new ContextTracker(this.preContext, this.postContext);
this.WarnFilterContext();
}
}
else
{
operandString = (string)LanguagePrimitives.ConvertTo(operand, typeof(string), CultureInfo.InvariantCulture);
}
if (!this.simpleMatch)
{
while (index < this.pattern.Length)
{
Regex regex = this.regexPattern[index];
if (this.allMatches && !this.notMatch)
{
MatchCollection matchs = regex.Matches(operandString);
if ((matchs != null) && (matchs.Count > 0))
{
array = new Match[matchs.Count];
matchs.CopyTo(array, 0);
success = true;
}
}
else
{
Match match = regex.Match(operandString);
success = match.Success;
if (match.Success)
{
array = new Match[] { match };
}
}
if (success)
{
break;
}
index++;
}
}
else
{
StringComparison comparisonType = this.caseSensitive ? StringComparison.CurrentCulture : StringComparison.CurrentCultureIgnoreCase;
while (index < this.pattern.Length)
{
string str = this.pattern[index];
if (operandString.IndexOf(str, comparisonType) >= 0)
{
success = true;
break;
}
index++;
}
}
if (this.notMatch)
{
success = !success;
index = 0;
}
if (!success)
{
return(false);
}
if (info != null)
{
if (info.Context != null)
{
matchResult = info.Clone();
matchResult.Context.DisplayPreContext = new string[0];
matchResult.Context.DisplayPostContext = new string[0];
}
else
{
matchResult = info;
}
return(true);
}
matchResult = new MatchInfo();
matchResult.IgnoreCase = !this.caseSensitive;
matchResult.Line = operandString;
matchResult.Pattern = this.pattern[index];
if ((this.preContext > 0) || (this.postContext > 0))
{
matchResult.Context = new MatchInfoContext();
}
matchResult.Matches = (array != null) ? array : new Match[0];
return(true);
}
private bool ProcessFile(string filename)
{
ContextTracker contextTracker = new ContextTracker(this.preContext, this.postContext);
bool flag = false;
try
{
if (!this.meetsIncludeExcludeCriteria(filename))
{
return(false);
}
using (FileStream stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (StreamReader reader = new StreamReader(stream, this.textEncoding))
{
string str;
int num = 0;
while ((str = reader.ReadLine()) != null)
{
num++;
MatchInfo matchResult = null;
string operandString = null;
if (this.doMatch(str, out matchResult, out operandString))
{
matchResult.Path = filename;
matchResult.LineNumber = num;
contextTracker.TrackMatch(matchResult);
}
else
{
contextTracker.TrackLine(str);
}
if (contextTracker.EmitQueue.Count > 0)
{
flag = true;
if (this.quiet || this.list)
{
goto Label_00C9;
}
this.FlushTrackerQueue(contextTracker);
}
}
}
}
Label_00C9:
contextTracker.TrackEOF();
if (this.FlushTrackerQueue(contextTracker))
{
flag = true;
}
}
catch (NotSupportedException exception)
{
base.WriteError(BuildErrorRecord(MatchStringStrings.FileReadError, filename, exception.Message, "ProcessingFile", exception));
}
catch (IOException exception2)
{
base.WriteError(BuildErrorRecord(MatchStringStrings.FileReadError, filename, exception2.Message, "ProcessingFile", exception2));
}
catch (SecurityException exception3)
{
base.WriteError(BuildErrorRecord(MatchStringStrings.FileReadError, filename, exception3.Message, "ProcessingFile", exception3));
}
catch (UnauthorizedAccessException exception4)
{
base.WriteError(BuildErrorRecord(MatchStringStrings.FileReadError, filename, exception4.Message, "ProcessingFile", exception4));
}
return(flag);
}
private async void EvalButton_Click(object sender, RoutedEventArgs e)
{
try
{
SetPanelEnablity(false);
_isCancelationRequested = false;
var k = double.Parse(kValBox.Text);
var alpha = double.Parse(alphaValueBox.Text);
var dt = double.Parse(dtBox.Text);
var timeSpan = double.Parse(timeSpanBox.Text);
var planetRadius = double.Parse(planetRadiusBox.Text);
var interval = ulong.Parse(renderingIntervalBox.Text);
var progressBarSteps = uint.Parse(progressBarStepsBox.Text);
var context = new PhysicalContext <Entities>(timePerTick: dt, capacity: 2);
context.AddEntity
(
Entities.Planet,
new PointMass(0, 0, 0, 1)
);
context.AddEntity
(
Entities.Ship,
new PointMass
(
new AxisStatus(double.Parse(xPosBox.Text), double.Parse(xVelBox.Text)),
new AxisStatus(double.Parse(yPosBox.Text), double.Parse(yVelBox.Text)),
new AxisStatus(),
1
),
c => ModifiedGravityLaw <Entities>(c[Entities.Ship], c[Entities.Planet], alpha, k)
);
var xTracker = new ContextTracker <Entities, double>(context, c => c[Entities.Ship].X.Position, interval);
var yTracker = new ContextTracker <Entities, double>(context, c => c[Entities.Ship].Y.Position, interval);
var progress = ContextProgressTracker <Entities> .FromTime
(
context,
timeSpan,
Enumerable.Range(1, (int)progressBarSteps).Select(i => timeSpan *i / progressBarSteps).ToArray()
);
progress.OnCheckPoint += (c, _) => Dispatcher.Invoke(() => progressBar.Value = progress.Progress);
bool isSuccesful = await Task.Run
(
() => context.Tick
(
timeSpan,
c =>
!_isCancelationRequested &&
(
c[Entities.Ship].X.Position *c[Entities.Ship].X.Position +
c[Entities.Ship].Y.Position *c[Entities.Ship].Y.Position >=
planetRadius *planetRadius
),
false
)
);
if (!isSuccesful && !_isCancelationRequested)
{
Task.Run(() => MessageBox.Show($"Ship has crashed at {context.Timer}"));
}
var title = $"Start position = ({xPosBox.Text}; {yPosBox.Text})\n" +
$"Start velocity = ({xVelBox.Text}; {yVelBox.Text})\n" +
$"dt = {dtBox.Text}, K = {kValBox.Text}, Alpha = {alphaValueBox.Text}";
var xSeries = new LineSeries()
{
CanTrackerInterpolatePoints = false,
Title = title
};
var ySeries = new LineSeries()
{
CanTrackerInterpolatePoints = false,
Title = title
};
var orbitSeries = new LineSeries()
{
CanTrackerInterpolatePoints = false,
Title = title
};
xSeries.Points.AddRange(from p in xTracker select new DataPoint(p.Key * dt, p.Value));
ySeries.Points.AddRange(from p in yTracker select new DataPoint(p.Key * dt, p.Value));
orbitSeries.Points.AddRange(xTracker.Zip(yTracker, (x, y) => new DataPoint(x.Value, y.Value)));
plotX.Model.Series.Add(xSeries);
plotY.Model.Series.Add(ySeries);
orbitPlot.Model.Series.Add(orbitSeries);
orbitPlot.Model.PlotType = PlotType.Cartesian;
plotX.InvalidatePlot();
plotY.InvalidatePlot();
orbitPlot.InvalidatePlot();
progressBar.Value = 0;
SetPanelEnablity(true);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
/// <summary>
/// Enters the specified context with the current thread.
/// </summary>
/// <remarks>
/// <para>
/// Conceptually this method pushes the specified context onto the context
/// stack for the current thread. It then returns a cookie that can be used
/// to restore the current thread's context to its previous value.
/// </para>
/// </remarks>
/// <param name="context">The context to enter, or null to enter a scope
/// without a context.</param>
/// <returns>A cookie that can be used to restore the current thread's context to its previous value.</returns>
/// <seealso cref="TestContextCookie"/>
public static TestContextCookie EnterContext(TestContext context)
{
return(new TestContextCookie(ContextTracker.EnterContext(context.inner)));
}
/// <summary>
/// Gets the default context for the specified thread.
/// </summary>
/// <remarks>
/// <para>
/// The default context for a thread is <see cref="GlobalContext" /> unless the thread's
/// default context has been overridden with <see cref="SetThreadDefaultContext" />.
/// </para>
/// <para>
/// Changing the default context of a thread is useful for capturing existing threads created
/// outside of a test into a particular context. Among other things, this ensures that side-effects
/// of the thread, such as writing text to the console, are recorded as part of the step
/// represented by the specified context.
/// </para>
/// </remarks>
/// <param name="thread">The thread.</param>
/// <returns>The default context.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="thread"/> is null.</exception>
public static TestContext GetThreadDefaultContext(Thread thread)
{
return(WrapContext(ContextTracker.GetThreadDefaultContext(thread)));
}
/// <summary>
/// Sets the default context for the specified thread.
/// </summary>
/// <remarks>
/// <para>
/// The default context for a thread is <see cref="GlobalContext" /> unless the thread's
/// default context has been overridden with <see cref="SetThreadDefaultContext" />.
/// </para>
/// <para>
/// Changing the default context of a thread is useful for capturing existing threads created
/// outside of a test into a particular context. Among other things, this ensures that side-effects
/// of the thread, such as writing text to the console, are recorded as part of the step
/// represented by the specified context.
/// </para>
/// </remarks>
/// <param name="thread">The thread.</param>
/// <param name="context">The context to associate with the thread, or null to reset the
/// thread's default context to inherit the <see cref="GlobalContext" /> once again.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="thread"/> is null.</exception>
public static void SetThreadDefaultContext(Thread thread, TestContext context)
{
ContextTracker.SetThreadDefaultContext(thread, context.inner);
}
static void Main(string[] args)
{
//PhysicalContext is the core class represents set of entities and
//set of force evaluation laws binded to it.
//Type parameter represents the type of keys used to adding and retrieving entities.
var context = new PhysicalContext <string>
(
timePerTick: dt, //The time, that is considered to be as small, as force values are uniform.
//The smaller timePerTick is, the better precision we get.
//Be aware, time for evaluating state of entities after certain period of time
//is proportional to (timePerTick)^-1.
capacity: 1 //Number of entities required to be added to context.
);
//Adding entity
var freeFallEntity = new PointMass
(
x: new AxisStatus(3.4), //Position = 3.4, zero velocity
y: new AxisStatus(0, 10), //Zero position, velocity = 10
z: new AxisStatus(1.1, 2), //Position = 1.1, Velocity = 2
mass: 77.7
);
context.AddEntity
(
"freeFallEntity", //key
freeFallEntity, //entity
c => //Only force that have impact on this entity
- new Force
(
xComponent: 0,
yComponent: c["freeFallEntity"].Mass * freeFallAcceleration,
zComponent: 0
)
//This force is always vertical and equal to mass of entity multiplied
//by free fall acceleration.
);
Console.WriteLine($"Start state is \n{context["freeFallEntity"]}");
//Evaluating the state of context after 1 second.
context.Tick(timeSpan: 1);
Console.WriteLine($"\nState of entity after 1 second is \n{context["freeFallEntity"]}");
//If you want to record some data while context is updating,
//you may subscribe to OnTick event or better use class derived from ContextObserver.
var yPositionTracker = new ContextTracker <string, double>
(
context,
c => c["freeFallEntity"].Y.Position
);
context.Tick(1);
//Context tracker implements IReadonlyDictionary.
Console.WriteLine($"\nOn tick 10345 y position is {yPositionTracker[10345]}");
Console.WriteLine($"\nOn time 1.27 y position is {yPositionTracker.GetApproximately(1.27)}");
//Throws exception because tracker has started recording when time is context
//was already 1.00.
//Console.WriteLine($"On time 0.4 y position is {yPositionTracker.GetApproximately(0.4)}");
//Throws exception because tracker hasn't record data yet because time in context is 2.00.
//Console.WriteLine($"On time 2.7 y position is {yPositionTracker.GetApproximately(2.7)}");
//Don't forget to dispose tracker when you don't need it anymore.
//It will increase performance because tracker doesn't record data anymore.
yPositionTracker.Dispose();
context.Tick(1);
//Time is context is 3.0, but tracker is already disposed and doesn't record data anymore.
Console.WriteLine
(
$"\nTracker records data during time span {yPositionTracker.ObservationBeginTime} - {yPositionTracker.LastObservationTime}" +
$"\nAverage y position is {yPositionTracker.Sum(record => record.Value) / yPositionTracker.Count}"
);
//However, if you want to record only max, min, average value etc,
//better use ContextDependentValue, because it doesn't use a lot of memory
//to record value in each tick.
var maxYVelocity = new ContextDependentValue <string, double>
(
startValue: context["freeFallEntity"].Y.Velocity,
observableContext: context,
newValueFunc: (c, oldValue) =>
c["freeFallEntity"].Velocity > oldValue ? new double?(c["freeFallEntity"].Velocity) : null
//null value means that there is no reason to change value
);
context.Tick(1);
Console.WriteLine
(
$"\nMax y velocity in time span {maxYVelocity.ObservationBeginTime} - " +
$"{maxYVelocity.LastObservationTime} is {maxYVelocity.Value}"
);
//So, lets create something more complex.
//What about the spring pendulum with air resistance?
var pendulumContext = new PhysicalContext <PendulumEntities>(dt, 2);
var axis = new PointMass(0, 0, 0, 0);
var mass = new PointMass(1, 0, 0, 0);
pendulumContext.AddEntity(PendulumEntities.Axis, axis);
pendulumContext.AddEntity
(
PendulumEntities.Mass,
mass,
c => new Force(0, c[PendulumEntities.Mass].Mass * freeFallAcceleration, 0), //Gravity
HookesLaw.GetLaw //Mechanix.Laws contains amount of static classes to help force evaluating.
(
PendulumEntities.Mass,
PendulumEntities.Axis,
1, //undeformed length of spring
10 //elasticity coefficient
)
);
//Or set of elastic balls.
var ballsContext = new PhysicalContext <int>(dt, 100);
var random = new Random();
const double radius = 1;
const double elasticity = 100;
for (int i = 0; i < 100; ++i)
{
var ball = new PointMass
(
new AxisStatus(random.NextDouble(), random.NextDouble()),
new AxisStatus(random.NextDouble(), random.NextDouble()),
new AxisStatus(random.NextDouble(), random.NextDouble()),
random.NextDouble()
);
ballsContext.AddEntity
(
i,
ball,
c =>
{
var force = Force.Zero;
foreach (var pair in c)
{
if (pair.Key != i)
{
force += RadialCollisionLaw.Eval
(
c[i],
pair.Value,
radius,
elasticity
);
}
}
return(force);
}
);
}
}
