public FilterInfo(FilterSpec filterSpec, ColumnDescriptor columnDescriptor, ColumnDescriptor collectionColumn)
{
FilterSpec = filterSpec;
ColumnDescriptor = columnDescriptor;
CollectionColumn = collectionColumn;
try
{
Predicate = MakePredicate();
}
catch (Exception e)
{
Error = e.Message;
}
}
//public void AddFilters(Type type, Dictionary<string, object> clauses, RouteData rd)
//{
// List<string> specialQueryParams = type.GetProperties().Select(pi => pi.Name).ToList();
// var qb = QueryBuilderFactory.Instance.Create();
// rd.DataTokens
// .Where(dt => specialQueryParams.Any(sqp => sqp == dt.Key || dt.Key.StartsWith(sqp + ".")))
// .Select(dt => new KeyValuePair<string, object>(
//}
public List <object> GetList(Type type, RouteData rd)
{
var clauses = new Dictionary <string, object>();
PagingSpec pagingSpec = PagingSpec.Create(rd);
if (pagingSpec != null)
{
clauses.Add("@Paging", pagingSpec);
}
FilterSpec filterSpec = FilterSpec.Create(type, rd);
if (filterSpec != null)
{
filterSpec.AddFilterClauses(clauses);
}
List <object> res = GetList(type, clauses);
if (res != null && res.Count > 0 && res[0].GetType() == typeof(PagingSpec))
{
rd.DataTokens.Add("@Paging", res[0]);
res.RemoveAt(0);
}
return(res);
}
public ViewableActivationResult Activate(
AgentInstanceContext agentInstanceContext,
bool isSubselect,
bool isRecoveringResilient)
{
FilterValueSetParam[][] addendum = null;
if (agentInstanceContext.AgentInstanceFilterProxy != null) {
addendum = agentInstanceContext.AgentInstanceFilterProxy.GetAddendumFilters(
FilterSpec,
agentInstanceContext);
}
var filterValues = FilterSpec.GetValueSet(
null,
addendum,
agentInstanceContext,
agentInstanceContext.StatementContextFilterEvalEnv);
EventStream theStream;
if (!agentInstanceContext.AuditProvider.Activated() &&
!agentInstanceContext.InstrumentationProvider.Activated()) {
theStream = CanIterate
? new ZeroDepthStreamIterable(FilterSpec.ResultEventType)
: (EventStream) new ZeroDepthStreamNoIterate(FilterSpec.ResultEventType);
}
else {
var streamNum = StreamNumFromClause ?? -1;
theStream = CanIterate
? new ZeroDepthStreamIterableWAudit(
FilterSpec.ResultEventType,
agentInstanceContext,
FilterSpec,
streamNum,
isSubselect,
SubselectNumber)
: (EventStream) new ZeroDepthStreamNoIterateWAudit(
FilterSpec.ResultEventType,
agentInstanceContext,
FilterSpec,
streamNum,
isSubselect,
SubselectNumber);
}
var statementId = agentInstanceContext.StatementId;
FilterHandleCallback filterCallback;
if (FilterSpec.OptionalPropertyEvaluator == null) {
filterCallback = new ProxyFilterHandleCallback {
ProcMatchFound = (
theEvent,
allStmtMatches) => theStream.Insert(theEvent),
ProcIsSubselect = () => IsSubSelect
};
}
else {
filterCallback = new ProxyFilterHandleCallback {
ProcMatchFound = (
theEvent,
allStmtMatches) => {
var result = FilterSpec.OptionalPropertyEvaluator.GetProperty(theEvent, agentInstanceContext);
if (result == null) {
return;
}
theStream.Insert(result);
},
ProcIsSubselect = () => IsSubSelect
};
}
var filterHandle = new EPStatementHandleCallbackFilter(
agentInstanceContext.EpStatementAgentInstanceHandle,
filterCallback);
agentInstanceContext.StatementContext.StatementContextRuntimeServices.FilterService.Add(
FilterSpec.FilterForEventType,
filterValues,
filterHandle);
var filterStopCallback = new ViewableActivatorFilterStopCallback(Container, filterHandle, FilterSpec);
return new ViewableActivationResult(theStream, filterStopCallback, null, false, false, null, null);
}
