/// <summary>
/// Crunches when any of <see cref="IUpdatable"/> are updated for every n <paramref name="interval"/>.
/// </summary>
/// <param name="name">Name of the cruncher for debugging purposes.</param>
/// <param name="updatables">The updatables to observe and crunch.</param>
/// <param name="interval">The interval for how many fires must any of <paramref name="updatables"/> trigger <see cref="IUpdatable.Updated"/> in order to trigger Concat's update event.</param>
/// <param name="properties">
/// How many properties all of the <paramref name="updatables"/> emit.
/// this can be less than their minimal properties.
/// e.g. if <paramref name="updatables"/> emit <see cref="BarValue"/> (4 properties), selecting 1 will take only <see cref="BarValue.Close"/>.
/// </param>
/// <returns>A new cruncher configured.</returns>
public static Concat OnEveryUpdate(IEnumerable <IUpdatable> updatables, int interval = 1, int properties = 1, string name = null)
{
if (interval <= 0)
{
throw new ArgumentOutOfRangeException(nameof(interval));
}
// ReSharper disable once UseObjectOrCollectionInitializer
var c = new Concat();
c.Name = name ?? "Concat";
c.Options = ConcatOptions.OnEveryUpdate;
var obsing = c.observing = updatables.ToArray();
c.concatenating = c.observing.ToArray();
var len = c.length = c.concatenating.Length;
var props = c.Properties = properties;
var outputCount = c.outputCount = c.concatenating.Sum(upd => upd.OutputCount);
c.signalCounter = null;
var workingTarget = new DoubleArrayPinned2DManaged(outputCount, props);
c.workingTarget = workingTarget;
c.counter = interval;
c.BindValues();
for (var i = 0; i < obsing.Length; i++)
{
IUpdatable srcUpdatable = obsing[i];
if (properties == 1)
{
if (interval == 1)
{
srcUpdatable.Updated += (time, updated) => { c.OnUpdated(time); };
}
else
{
srcUpdatable.Updated += (time, updated) => {
if (--c.counter <= 0)
{
c.OnUpdated(time);
c.counter = interval;
}
};
srcUpdatable.Resetted += sender => { c.counter = interval; };
}
}
else
{
//case when values collected are multi-valued output (tradebar value)
if (interval == 1)
{
srcUpdatable.Updated += (time, updated) => { c.OnUpdated(time); };
}
else
{
srcUpdatable.Updated += (time, updated) => {
if (--c.counter <= 0)
{
c.OnUpdated(time);
c.counter = interval;
}
};
srcUpdatable.Resetted += sender => { c.counter = interval; };
}
}
}
return(c);
}
/// <summary>
/// Crunches <paramref name="updatables"/> whenever <paramref name="crunchTriggers"/> is updated for n <paramref name="interval"/> times.
/// </summary>
/// <param name="name">Name of the cruncher for debugging purposes.</param>
/// <param name="updatables">The updatables to observe and crunch.</param>
/// <param name="crunchTriggers">The <see cref="IUpdatable"/>s to observe for fires of <see cref="IUpdatable.Updated"/>.</param>
/// <param name="interval">The interval for how many fires must <paramref name="crunchTriggers"/> trigger <see cref="IUpdatable.Updated"/> in order to trigger Concat's update event.</param>
/// <param name="properties">
/// How many properties all of the <paramref name="updatables"/> emit.
/// this can be less than their minimal properties.
/// e.g. if <paramref name="updatables"/> emit <see cref="BarValue"/> (4 properties), selecting 1 will take only <see cref="BarValue.Close"/>.
/// </param>
/// <param name="triggerMustBeReady">Does <paramref name="crunchTriggers"/> must be ready to trigger Concat's update event? By default </param>
/// <returns>A new cruncher configured.</returns>
public static Concat OnSpecificUpdate(IEnumerable <IUpdatable> updatables, IUpdatable[] crunchTriggers, int interval = 1, int properties = 1, string name = null, bool[] triggerMustBeReady = null)
{
if (interval <= 0)
{
throw new ArgumentOutOfRangeException(nameof(interval));
}
// ReSharper disable once UseObjectOrCollectionInitializer
var c = new Concat {
Name = name ?? "Concat"
};
c.Options = ConcatOptions.OnSpecificUpdated;
c.observing = crunchTriggers;
c.concatenating = updatables.ToArray();
var len = c.length = c.concatenating.Length;
var props = c.Properties = properties;
var outputCount = c.outputCount = c.concatenating.Sum(upd => upd.OutputCount);
c.signalCounter = null;
var workingTarget = new DoubleArrayPinned2DManaged(outputCount, props);
c.workingTarget = workingTarget;
c.counter = interval;
c.BindValues();
for (var i = 0; i < crunchTriggers.Length; i++)
{
var onlyWhenReady = triggerMustBeReady[i];
var crunchTrigger = crunchTriggers[i];
if (interval == 1)
{
if (onlyWhenReady)
{
crunchTrigger.Updated += (time, updated) => {
if (crunchTrigger.IsReady)
{
c.OnUpdated(time);
}
};
}
else
{
crunchTrigger.Updated += (time, updated) => c.OnUpdated(time);
}
}
else
{
if (onlyWhenReady)
{
crunchTrigger.Updated += (time, updated) => {
if (!crunchTrigger.IsReady)
{
return;
}
if (--c.counter <= 0)
{
c.OnUpdated(time);
c.counter = interval;
}
};
}
else
{
crunchTrigger.Updated += (time, updated) => {
if (--c.counter <= 0)
{
c.OnUpdated(time);
c.counter = interval;
}
};
}
}
crunchTrigger.Resetted += _ => c.counter = interval;
}
return(c);
}
/// <summary>
/// Crunches when all <see cref="IUpdatable"/> were updated atleast once.
/// </summary>
/// <param name="name">Name of the cruncher for debugging purposes.</param>
/// <param name="updatables">The updatables to observe and crunch.</param>
/// <param name="properties">
/// How many properties all of the <paramref name="updatables"/> emit.
/// this can be less than their minimal properties.
/// e.g. if <paramref name="updatables"/> emit <see cref="BarValue"/> (4 properties), selecting 1 will take only <see cref="BarValue.Close"/>.
/// </param>
/// <returns>A new cruncher configured.</returns>
public static Concat OnAllUpdatedOnce(IEnumerable <IUpdatable> updatables, int properties = 1, string name = null)
{
// ReSharper disable once UseObjectOrCollectionInitializer
var c = new Concat();
c.Name = name ?? "Concat";
c.Options = ConcatOptions.OnAllUpdatedOnce;
var obsing = c.observing = updatables.ToArray();
c.concatenating = c.observing.ToArray();
var len = c.length = c.concatenating.Length;
var outputCount = c.outputCount = c.concatenating.Sum(upd => upd.OutputCount);
var props = c.Properties = properties;
var cntr = c.signalCounter = new bool[len];
var workingTarget = new DoubleArrayPinned2DManaged(outputCount, props);
c.workingTarget = workingTarget;
c.counter = len;
//debug handle
//bind the values to their repsective memory address.
c.BindValues();
for (var i = 0; i < obsing.Length; i++)
{
IUpdatable srcUpdatable = obsing[i];
int updId = i;
//case when values collected are indicator output (single value)
if (properties == 1)
{
srcUpdatable.Updated += (time, updated) => {
if (!cntr[updId])
{
cntr[updId] = true;
if (--c.counter <= 0)
{
c.OnUpdated(time);
Array.Clear(cntr, 0, len);
c.counter = len;
}
}
};
srcUpdatable.Resetted += sender => {
if (cntr[updId])
{
c.counter++;
cntr[updId] = false;
}
};
}
else
{
//case when values collected are multi-valued output (tradebar value)
srcUpdatable.Updated += (time, updated) => {
if (!cntr[updId])
{
cntr[updId] = true;
if (--c.counter <= 0)
{
c.OnUpdated(time);
Array.Clear(cntr, 0, len);
c.counter = len;
}
}
};
srcUpdatable.Resetted += sender => {
if (cntr[updId])
{
c.counter++;
cntr[updId] = false;
}
};
}
}
return(c);
}
