Examples with DataContext org.apache.calcite.DataContext used on opensource projects

Example 6 with DataContext

use of org.apache.calcite.DataContext in project storm by apache.

the class EvaluationCalc method execute.

@Override
public Iterable<Values> execute(TridentTuple input) {
    Context calciteContext = new StormContext(dataContext);
    calciteContext.values = input.getValues().toArray();
    if (filterInstance != null) {
        filterInstance.execute(calciteContext, outputValues);
        // filtered out
        if (outputValues[0] == null || !((Boolean) outputValues[0])) {
            return Collections.emptyList();
        }
    }
    if (projectionInstance != null) {
        projectionInstance.execute(calciteContext, outputValues);
        return Collections.singletonList(new Values(outputValues));
    } else {
        return Collections.singletonList(new Values(input.getValues()));
    }
}