/// <summary> if all the facts have not expired, the method returns true. If a fact has
/// expired, the method will retract the fact.
/// </summary>
/// <param name="">inx
/// </param>
/// <param name="">engine
/// </param>
/// <param name="">mem
/// </param>
/// <returns>
///
/// </returns>
protected internal virtual bool checkFacts(Index inx, Rete engine, IWorkingMemory mem)
{
IFact[] facts = inx.Facts;
bool fresh = true;
long current = (DateTime.Now.Ticks - 621355968000000000) / 10000;
for (int idx = 0; idx < facts.Length; idx++)
{
if (facts[idx] is ITemporalFact)
{
TemporalDeffact tf = (TemporalDeffact)facts[idx];
if (tf.ExpirationTime < current)
{
// the fact has expired
fresh = false;
try
{
engine.retractFact(tf);
}
catch (RetractException e)
{
// we do nothing
}
}
}
}
return(fresh);
}
public virtual IFact createTemporalFact(Object[] data, long id)
{
Slot[] values = cloneAllSlots();
long expire = 0;
String source = "";
String service = "";
int valid = 0;
for (int idz = 0; idz < data.Length; idz++)
{
Slot s = (Slot)data[idz];
// check to see if the slot is a temporal fact attribute
if (isTemporalAttribute(s))
{
if (s.Name.Equals(TemporalFact_Fields.EXPIRATION))
{
expire = Decimal.ToInt64(((Decimal)s.Value));
}
else if (s.Name.Equals(TemporalFact_Fields.SERVICE_TYPE))
{
service = (String)s.Value;
}
else if (s.Name.Equals(TemporalFact_Fields.SOURCE))
{
source = (String)s.Value;
}
else if (s.Name.Equals(TemporalFact_Fields.VALIDITY))
{
valid = Decimal.ToInt32(((Decimal)s.Value));
}
}
else
{
for (int idx = 0; idx < values.Length; idx++)
{
if (values[idx].Name.Equals(s.Name))
{
if (s.Value == null)
{
values[idx].Value = Constants.NIL_SYMBOL;
}
else if (values[idx].ValueType == Constants.STRING_TYPE && !(s.Value is BoundParam))
{
values[idx].Value = s.Value.ToString();
}
else if (s.Value is BoundParam)
{
values[idx].Value = s.Value;
}
else
{
values[idx].Value = s.Value;
}
}
}
}
}
TemporalDeffact newfact = new TemporalDeffact(this, null, values, id);
// we call this to create the string used to map the fact.
newfact.ExpirationTime = expire;
newfact.ServiceType = service;
newfact.Source = source;
newfact.Validity = valid;
newfact.equalityIndex();
return(newfact);
}
public virtual IFact createTemporalFact(Object[] data, long id)
{
Slot[] values = cloneAllSlots();
long expire = 0;
String source = "";
String service = "";
int valid = 0;
for (int idz = 0; idz < data.Length; idz++)
{
Slot s = (Slot) data[idz];
// check to see if the slot is a temporal fact attribute
if (isTemporalAttribute(s))
{
if (s.Name.Equals(TemporalFact_Fields.EXPIRATION))
{
expire = Decimal.ToInt64(((Decimal) s.Value));
}
else if (s.Name.Equals(TemporalFact_Fields.SERVICE_TYPE))
{
service = (String) s.Value;
}
else if (s.Name.Equals(TemporalFact_Fields.SOURCE))
{
source = (String) s.Value;
}
else if (s.Name.Equals(TemporalFact_Fields.VALIDITY))
{
valid = Decimal.ToInt32(((Decimal) s.Value));
}
}
else
{
for (int idx = 0; idx < values.Length; idx++)
{
if (values[idx].Name.Equals(s.Name))
{
if (s.Value == null)
{
values[idx].Value = Constants.NIL_SYMBOL;
}
else if (values[idx].ValueType == Constants.STRING_TYPE && !(s.Value is BoundParam))
{
values[idx].Value = s.Value.ToString();
}
else if (s.Value is BoundParam)
{
values[idx].Value = s.Value;
}
else
{
values[idx].Value = s.Value;
}
}
}
}
}
TemporalDeffact newfact = new TemporalDeffact(this, null, values, id);
// we call this to create the string used to map the fact.
newfact.ExpirationTime = expire;
newfact.ServiceType = service;
newfact.Source = source;
newfact.Validity = valid;
newfact.equalityIndex();
return newfact;
}