/// <summary>
/// Remove a filter callback from the given index node.
/// </summary>
/// <param name="filterCallback">is the callback to remove</param>
/// <param name="filterServiceEntry">The filter service entry.</param>
public void Remove(FilterHandle filterCallback, FilterServiceEntry filterServiceEntry)
{
EventTypeIndexBuilderValueIndexesPair pair;
if (_isolatableCallbacks != null)
{
using (_callbacksLock.Acquire())
{
pair = _isolatableCallbacks.Delete(filterCallback);
}
if (pair == null)
{
return;
}
}
else
{
pair = (EventTypeIndexBuilderValueIndexesPair)filterServiceEntry;
}
using (Instrument.With(
i => i.QFilterRemove(filterCallback, pair),
i => i.AFilterRemove()))
{
var eventType = pair.FilterValueSet.EventType;
var rootNode = _eventTypeIndex.Get(eventType);
// GetInstance remove from tree
if (rootNode != null)
{
pair.IndexPairs.ForEach(
indexPair => IndexTreeBuilder.Remove(eventType, filterCallback, indexPair, rootNode));
}
}
}
public override void Remove(FilterHandle callback, FilterServiceEntry filterServiceEntry)
{
using (_iLock.AcquireWriteLock())
{
base.RemoveInternal(callback, filterServiceEntry);
}
}
public void Activate(EventBean optionalTriggeringEvent, MatchedEventMap priorMatches, long timeOffset, bool isRecoveringResilient)
{
FilterHandleCallback filterCallback = new ProxyFilterHandleCallback
{
ProcStatementId = () => _agentInstanceContext.StatementContext.StatementId,
ProcIsSubselect = () => false,
ProcMatchFound = (theEvent, allStmtMatches) => FilterMatchFound(theEvent)
};
// determine addendum, if any
FilterValueSetParam[][] addendum = null;
if (_filterAddendum != null)
{
addendum = _filterAddendum.GetFilterAddendum(_endpointFilterSpec.FilterSpecCompiled);
}
_filterHandle = new EPStatementHandleCallback(_agentInstanceContext.EpStatementAgentInstanceHandle, filterCallback);
FilterValueSet filterValueSet = _endpointFilterSpec.FilterSpecCompiled.GetValueSet(null, _agentInstanceContext, addendum);
_filterServiceEntry = _servicesContext.FilterService.Add(filterValueSet, _filterHandle);
if (optionalTriggeringEvent != null)
{
bool match = StatementAgentInstanceUtil.EvaluateFilterForStatement(_servicesContext, optionalTriggeringEvent, _agentInstanceContext, _filterHandle);
if (match)
{
FilterMatchFound(optionalTriggeringEvent);
}
}
}
public void Open(DataFlowOpOpenContext openContext)
{
FilterValueSet valueSet;
try
{
IList <ExprNode> filters = new ExprNode[0];
if (filter != null)
{
filters = new ExprNode[] { filter };
}
var spec = FilterSpecCompiler.MakeFilterSpec(
_eventType, _eventType.Name, filters, null,
null, null,
new StreamTypeServiceImpl(
_eventType,
_eventType.Name, true,
_agentInstanceContext.EngineURI),
null,
_agentInstanceContext.StatementContext,
new List <int>());
valueSet = spec.GetValueSet(null, _agentInstanceContext, null);
}
catch (ExprValidationException ex)
{
throw new EPException("Failed to open filter: " + ex.Message, ex);
}
var handle = new EPStatementAgentInstanceHandle(_agentInstanceContext.StatementContext.EpStatementHandle, _agentInstanceContext.AgentInstanceLock, 0, new StatementAgentInstanceFilterVersion());
_callbackHandle = new EPStatementHandleCallback(handle, this);
_filterServiceEntry = _agentInstanceContext.StatementContext.FilterService.Add(valueSet, _callbackHandle);
}
public void Deactivate()
{
if (_filterHandle != null)
{
_servicesContext.FilterService.Remove(_filterHandle, _filterServiceEntry);
_filterHandle = null;
_filterServiceEntry = null;
long filtersVersion = _agentInstanceContext.StatementContext.FilterService.FiltersVersion;
_agentInstanceContext.EpStatementAgentInstanceHandle.StatementFilterVersion.StmtFilterVersion = filtersVersion;
}
}
public void Close(DataFlowOpCloseContext openContext)
{
using (_iLock.Acquire())
{
if (callbackHandle != null)
{
agentInstanceContext.StatementContext.FilterService.Remove(callbackHandle, filterServiceEntry);
callbackHandle = null;
filterServiceEntry = null;
}
}
}
protected void StartFiltering()
{
FilterService filterService = _evalFilterNode.Context.PatternContext.FilterService;
Handle = new EPStatementHandleCallback(_evalFilterNode.Context.AgentInstanceContext.EpStatementAgentInstanceHandle, this);
FilterValueSet filterValues = _evalFilterNode.FactoryNode.FilterSpec.GetValueSet(BeginState, _evalFilterNode.Context.AgentInstanceContext, _evalFilterNode.AddendumFilters);
FilterServiceEntry = filterService.Add(filterValues, Handle);
long filtersVersion = filterService.FiltersVersion;
_evalFilterNode.Context.AgentInstanceContext.EpStatementAgentInstanceHandle.StatementFilterVersion.StmtFilterVersion = filtersVersion;
}
private void StopFiltering()
{
PatternContext context = _evalFilterNode.Context.PatternContext;
if (Handle != null)
{
context.FilterService.Remove(Handle, FilterServiceEntry);
}
Handle = null;
FilterServiceEntry = null;
IsStarted = false;
long filtersVersion = context.FilterService.FiltersVersion;
_evalFilterNode.Context.AgentInstanceContext.EpStatementAgentInstanceHandle.StatementFilterVersion.StmtFilterVersion = filtersVersion;
}
public void TestActiveCallbackRemove()
{
var spec = SupportFilterSpecBuilder.Build(_eventTypeOne, new Object[0]).GetValueSet(null, null, null);
var callbackTwo = new SupportFilterHandle();
// callback that removes another matching filter spec callback
Atomic <FilterServiceEntry> filterServiceEntryOne = new Atomic <FilterServiceEntry>();
FilterHandleCallback callbackOne = new ProxyFilterHandleCallback
{
ProcStatementId = () => "",
ProcIsSubselect = () => false,
ProcMatchFound = (e, allStmtMatches) =>
{
Log.Debug(".matchFound Removing callbackTwo");
_filterService.Remove(callbackTwo, filterServiceEntryOne.Value);
}
};
FilterServiceEntry filterServiceEntry = _filterService.Add(spec, callbackOne);
filterServiceEntryOne.Set(filterServiceEntry);
_filterService.Add(spec, callbackTwo);
// send event
var theEvent = MakeTypeOneEvent(1, "HELLO", false, 1);
var matches = new List <FilterHandle>();
_filterService.Evaluate(theEvent, matches);
foreach (FilterHandle match in matches)
{
var handle = (FilterHandleCallback)match;
handle.MatchFound(theEvent, null);
}
// Callback two MUST be invoked, was removed by callback one, but since the
// callback invocation order should not matter, the second one MUST also execute
Assert.AreEqual(1, callbackTwo.GetAndResetCountInvoked());
}
public ContextControllerHashedFilterCallback(
EPServicesContext servicesContext,
AgentInstanceContext agentInstanceContextCreateContext,
ContextDetailHashItem hashItem,
ContextControllerHashedInstanceCallback callback,
ContextInternalFilterAddendum filterAddendum)
{
_agentInstanceContextCreateContext = agentInstanceContextCreateContext;
_callback = callback;
_getter = hashItem.Lookupable.Getter;
_filterHandle = new EPStatementHandleCallback(agentInstanceContextCreateContext.EpStatementAgentInstanceHandle, this);
FilterValueSetParam[][] addendum = filterAddendum != null?filterAddendum.GetFilterAddendum(hashItem.FilterSpecCompiled) : null;
FilterValueSet filterValueSet = hashItem.FilterSpecCompiled.GetValueSet(null, null, addendum);
_filterServiceEntry = servicesContext.FilterService.Add(filterValueSet, _filterHandle);
long filtersVersion = servicesContext.FilterService.FiltersVersion;
agentInstanceContextCreateContext.EpStatementAgentInstanceHandle.StatementFilterVersion.StmtFilterVersion = filtersVersion;
}
public ContextControllerPartitionedFilterCallback(EPServicesContext servicesContext, AgentInstanceContext agentInstanceContextCreateContext, ContextDetailPartitionItem partitionItem, ContextControllerPartitionedInstanceCreateCallback callback, ContextInternalFilterAddendum filterAddendum)
{
_agentInstanceContextCreateContext = agentInstanceContextCreateContext;
_callback = callback;
_filterHandle = new EPStatementHandleCallback(agentInstanceContextCreateContext.EpStatementAgentInstanceHandle, this);
_getters = new EventPropertyGetter[partitionItem.PropertyNames.Count];
for (int i = 0; i < partitionItem.PropertyNames.Count; i++)
{
var propertyName = partitionItem.PropertyNames[i];
var getter = partitionItem.FilterSpecCompiled.FilterForEventType.GetGetter(propertyName);
_getters[i] = getter;
}
var addendum = filterAddendum != null?filterAddendum.GetFilterAddendum(partitionItem.FilterSpecCompiled) : null;
var filterValueSet = partitionItem.FilterSpecCompiled.GetValueSet(null, null, addendum);
_filterServiceEntry = servicesContext.FilterService.Add(filterValueSet, _filterHandle);
var filtersVersion = servicesContext.FilterService.FiltersVersion;
agentInstanceContextCreateContext.EpStatementAgentInstanceHandle.StatementFilterVersion.StmtFilterVersion = filtersVersion;
}
public void Remove(FilterHandle callback, FilterServiceEntry filterServiceEntry)
{
_removed.Add(callback);
}
protected void RemoveInternal(FilterHandle filterCallback, FilterServiceEntry filterServiceEntry)
{
_indexBuilder.Remove(filterCallback, filterServiceEntry);
_filtersVersion++;
}
public abstract void Remove(FilterHandle callback, FilterServiceEntry filterServiceEntry);
public ViewableActivatorFilterProxyStopCallback(ViewableActivatorFilterProxy parent, EPStatementHandleCallback filterHandle, FilterServiceEntry filterServiceEntry)
{
_parent = parent;
_filterHandle = filterHandle;
_filterServiceEntry = filterServiceEntry;
}
public override void Remove(FilterHandle callback, FilterServiceEntry filterServiceEntry)
{
base.RemoveInternal(callback, filterServiceEntry);
}
