io.github.geraldnguyen.excel.BaseIfs Maven / Gradle / Ivy

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Implementation of popular excel formula in Java

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package io.github.geraldnguyen.excel;

import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public abstract class BaseIfs {
    protected  List ifs(List range, RangeCriteria... rangeCriteria) {
        var size = range.size();
        for (var rc : rangeCriteria) {
            int providedSize = rc.range.size();
            if (providedSize > size) {
                throw new IllegalArgumentException("Invalid range, max expected: " + size + ", provided: " + providedSize);
            }
        }

        var finalist = ifs(rangeCriteria);

        return finalist.stream().map(range::get).collect(Collectors.toList());
    }

    protected  Set ifs(RangeCriteria... rangeCriteria) {
        var eligibles = Arrays.stream(rangeCriteria).map(rc -> {
            var list = (List