/// <summary>
/// Make an observer instance.
/// </summary>
/// <param name="context">services that may be required by observer implementation</param>
/// <param name="beginState">start state for observer</param>
/// <param name="observerEventEvaluator">receiver for events observed</param>
/// <param name="stateNodeId">optional id for the associated pattern state node</param>
/// <param name="observerState">state node for observer</param>
/// <param name="isFilterChildNonQuitting">if set to <c>true</c> [is filter child non quitting].</param>
/// <returns>
/// observer instance
/// </returns>
/// <exception cref="System.NotImplementedException"></exception>
public abstract EventObserver MakeObserver(
PatternAgentInstanceContext context,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator,
EvalStateNodeNumber stateNodeId,
object observerState,
bool isFilterChildNonQuitting);
/// <summary>Ctor. </summary>
/// <param name="scheduleSpec">specification containing the crontab schedule</param>
/// <param name="beginState">start state</param>
/// <param name="observerEventEvaluator">receiver for events</param>
public TimerAtObserver(ScheduleSpec scheduleSpec, MatchedEventMap beginState, ObserverEventEvaluator observerEventEvaluator)
{
_scheduleSpec = scheduleSpec;
_beginState = beginState;
_observerEventEvaluator = observerEventEvaluator;
_scheduleSlot = observerEventEvaluator.Context.PatternContext.ScheduleBucket.AllocateSlot();
}
/// <summary>Ctor. </summary>
/// <param name="deltaTime">number of milliseconds</param>
/// <param name="beginState">start state</param>
/// <param name="observerEventEvaluator">receiver for events</param>
public TimerIntervalObserver(long deltaTime, MatchedEventMap beginState, ObserverEventEvaluator observerEventEvaluator)
{
_deltaTime = deltaTime;
_beginState = beginState;
_observerEventEvaluator = observerEventEvaluator;
_scheduleSlot = observerEventEvaluator.Context.PatternContext.ScheduleBucket.AllocateSlot();
}
/// <summary>
/// Ctor.
/// </summary>
/// <param name="spec">The spec.</param>
/// <param name="beginState">start state</param>
/// <param name="observerEventEvaluator">receiver for events</param>
/// <param name="isFilterChildNonQuitting">if set to <c>true</c> [is filter child non quitting].</param>
public TimerScheduleObserver(TimerScheduleSpec spec, MatchedEventMap beginState, ObserverEventEvaluator observerEventEvaluator, bool isFilterChildNonQuitting)
{
_beginState = beginState;
_observerEventEvaluator = observerEventEvaluator;
_scheduleSlot = observerEventEvaluator.Context.PatternContext.ScheduleBucket.AllocateSlot();
_spec = spec;
_isFilterChildNonQuitting = isFilterChildNonQuitting;
}
public MyFileExistsObserver(
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator,
string filename)
{
BeginState = beginState;
this.observerEventEvaluator = observerEventEvaluator;
this.filename = filename;
}
public EventObserver MakeObserver(
PatternAgentInstanceContext context,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator,
EvalStateNodeNumber stateNodeId,
Object observerState,
bool isFilterChildNonQuitting)
{
return(new TimerAtObserver(ComputeSpec(beginState, context), beginState, observerEventEvaluator));
}
public EventObserver MakeObserver(
PatternAgentInstanceContext context,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator,
EvalStateNodeNumber stateNodeId,
Object observerState,
bool isFilterchildNonQuitting)
{
return(null);
}
/// <summary>
/// Ctor.
/// </summary>
/// <param name="scheduleSpec">specification containing the crontab schedule</param>
/// <param name="beginState">start state</param>
/// <param name="observerEventEvaluator">receiver for events</param>
public TimerAtObserver(
ScheduleSpec scheduleSpec,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator)
{
this.scheduleSpec = scheduleSpec;
this.beginState = beginState;
this.observerEventEvaluator = observerEventEvaluator;
this.scheduleSlot = observerEventEvaluator.Context.AgentInstanceContext.ScheduleBucket.AllocateSlot();
}
/// <summary>
/// Ctor.
/// </summary>
/// <param name="deltaTime">the time deltaTime</param>
/// <param name="beginState">start state</param>
/// <param name="observerEventEvaluator">receiver for events</param>
public TimerIntervalObserver(
long deltaTime,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator)
{
this.deltaTime = deltaTime;
BeginState = beginState;
this.observerEventEvaluator = observerEventEvaluator;
scheduleSlot = observerEventEvaluator.Context.AgentInstanceContext.ScheduleBucket.AllocateSlot();
}
public TimerScheduleObserver(
TimerScheduleSpec spec,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator,
bool isFilterChildNonQuitting)
{
this.beginState = beginState;
this.observerEventEvaluator = observerEventEvaluator;
scheduleSlot = observerEventEvaluator.Context.AgentInstanceContext.ScheduleBucket.AllocateSlot();
this.spec = spec;
this.isFilterChildNonQuitting = isFilterChildNonQuitting;
}
public override EventObserver MakeObserver(
PatternAgentInstanceContext context,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator,
EvalStateNodeNumber stateNodeId,
Object observerState,
bool isFilterChildNonQuitting)
{
Object filename = PatternExpressionUtil.Evaluate(
"File-exists observer ", beginState, FilenameExpression, Convertor, null);
if (filename == null)
{
throw new EPException("Filename evaluated to null");
}
return(new MyFileExistsObserver(beginState, observerEventEvaluator, filename.ToString()));
}
public EventObserver MakeObserver(
PatternAgentInstanceContext context,
MatchedEventMap beginState,
ObserverEventEvaluator observerEventEvaluator,
object observerState,
bool isFilterChildNonQuitting)
{
var events = convertor == null ? null : convertor.Invoke(beginState);
var filename = PatternExpressionUtil.EvaluateChecked(
"File-exists observer ",
filenameExpression,
events,
context.AgentInstanceContext);
if (filename == null) {
throw new EPException("Filename evaluated to null");
}
return new MyFileExistsObserver(beginState, observerEventEvaluator, filename.ToString());
}
public MyFileExistsObserver(MatchedEventMap beginState, ObserverEventEvaluator observerEventEvaluator, String filename)
{
_beginState = beginState;
_observerEventEvaluator = observerEventEvaluator;
_filename = filename;
}
