package com.espertech.esper.epl.enummethod.eval;
import com.espertech.esper.client.EventType;
import com.espertech.esper.epl.core.StreamTypeService;
import com.espertech.esper.epl.enummethod.dot.ExprDotEvalEnumMethodBase;
import com.espertech.esper.epl.enummethod.dot.ExprDotEvalParam;
import com.espertech.esper.epl.enummethod.dot.ExprDotEvalParamLambda;
import com.espertech.esper.epl.enummethod.dot.ExprDotEvalTypeInfo;
import com.espertech.esper.epl.expression.ExprDotNodeUtility;
import com.espertech.esper.epl.expression.ExprEvaluator;
import com.espertech.esper.event.map.MapEventType;
import com.espertech.esper.util.JavaClassHelper;
import java.util.List;
public class ExprDotEvalAggregate extends ExprDotEvalEnumMethodBase {
public EventType[] getAddStreamTypes(String enumMethodUsedName, List<String> goesToNames, EventType inputEventType, Class collectionComponentType, List<ExprDotEvalParam> bodiesAndParameters) {
EventType evalEventType;
if (inputEventType == null) {
evalEventType = ExprDotNodeUtility.makeTransientMapType(enumMethodUsedName, goesToNames.get(1), collectionComponentType);
}
else {
evalEventType = inputEventType;
}
Class initializationType = bodiesAndParameters.get(0).getBodyEvaluator().getType();
EventType typeResult = ExprDotNodeUtility.makeTransientMapType(enumMethodUsedName, goesToNames.get(0), initializationType);
return new EventType[] {typeResult, evalEventType};
}
public EnumEval getEnumEval(StreamTypeService streamTypeService, String enumMethodUsedName, List<ExprDotEvalParam> bodiesAndParameters, EventType inputEventType, Class collectionComponentType, int numStreamsIncoming) {
ExprDotEvalParam initValueParam = bodiesAndParameters.get(0);
ExprEvaluator initValueEval = initValueParam.getBodyEvaluator();
super.setTypeInfo(ExprDotEvalTypeInfo.scalarOrUnderlying(JavaClassHelper.getBoxedType(initValueEval.getType())));
ExprDotEvalParamLambda resultAndAdd = (ExprDotEvalParamLambda) bodiesAndParameters.get(1);
if (inputEventType != null) {
return new EnumEvalAggregateEvents(initValueEval,
resultAndAdd.getBodyEvaluator(), resultAndAdd.getStreamCountIncoming(),
(MapEventType) resultAndAdd.getGoesToTypes()[0], resultAndAdd.getGoesToNames().get(0));
}
else {
return new EnumEvalAggregateScalar(initValueEval,
resultAndAdd.getBodyEvaluator(), resultAndAdd.getStreamCountIncoming(),
(MapEventType) resultAndAdd.getGoesToTypes()[0], resultAndAdd.getGoesToNames().get(0),
(MapEventType) resultAndAdd.getGoesToTypes()[1], resultAndAdd.getGoesToNames().get(1));
}
}
}