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src/main/java/io/protobase/f7/formulas/math/MULTIPLY.java
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1package io.protobase.f7.formulas.math;
2
3import io.protobase.f7.errors.F7Exception;
4import io.protobase.f7.formulas.AbstractFormula;
5import io.protobase.f7.formulas.FormulaName;
6import io.protobase.f7.models.GridColumnRowKey;
7import io.protobase.f7.utils.Converters;
8
9import java.util.function.BiFunction;
10import java.util.function.Function;
11
12public class MULTIPLY extends AbstractFormula {
13 public static FormulaName NAME = FormulaName.MULTIPLY;
14 public static MULTIPLY SELF = new MULTIPLY();
15
16 public MULTIPLY() {
17 super();
18 }
19
20 public MULTIPLY(Function<Object, Object> lookup, BiFunction<GridColumnRowKey, Object, Object> collateralLookup) {
21 super(lookup, collateralLookup);
22 }
23
24
25 @Override
26 public Object internal(GridColumnRowKey origin, Object... values) {
27 checkLength(values.length, 2, NAME);
28 Object first = Converters.first(collateralLookup.apply(origin, values[0]));
29 Object second = Converters.first(collateralLookup.apply(origin, values[1]));
30 if (first instanceof F7Exception) {
31 return first;
32 }
33 if (second instanceof F7Exception) {
34 return second;
35 }
36 return Converters.toDouble(first) * Converters.toDouble(second);
37 }
38}