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/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
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   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
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package org.apache.poi.ss.formula.functions;

import org.apache.poi.ss.formula.eval.AreaEval;
import org.apache.poi.ss.formula.eval.ErrorEval;
import org.apache.poi.ss.formula.eval.EvaluationException;
import org.apache.poi.ss.formula.eval.NumberEval;
import org.apache.poi.ss.formula.eval.RefEval;
import org.apache.poi.ss.formula.eval.ValueEval;
import org.apache.poi.ss.formula.functions.CountUtils.I_MatchPredicate;

/**
 * Implementation for the Excel function SUMIF

* * Syntax :
* SUMIF ( range, criteria, sum_range )
*

* * * *
rangeThe range over which criteria is applied. Also used for addend values when the third parameter is not present
criteriaThe value or expression used to filter rows from range
sum_rangeLocates the top-left corner of the corresponding range of addends - values to be added (after being selected by the criteria)

*

* @author Josh Micich */ public final class Sumif extends Var2or3ArgFunction { public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0, ValueEval arg1) { AreaEval aeRange; try { aeRange = convertRangeArg(arg0); } catch (EvaluationException e) { return e.getErrorEval(); } return eval(srcRowIndex, srcColumnIndex, arg1, aeRange, aeRange); } public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0, ValueEval arg1, ValueEval arg2) { AreaEval aeRange; AreaEval aeSum; try { aeRange = convertRangeArg(arg0); aeSum = createSumRange(arg2, aeRange); } catch (EvaluationException e) { return e.getErrorEval(); } return eval(srcRowIndex, srcColumnIndex, arg1, aeRange, aeSum); } private static ValueEval eval(int srcRowIndex, int srcColumnIndex, ValueEval arg1, AreaEval aeRange, AreaEval aeSum) { // TODO - junit to prove last arg must be srcColumnIndex and not srcRowIndex I_MatchPredicate mp = Countif.createCriteriaPredicate(arg1, srcRowIndex, srcColumnIndex); // handle empty cells if(mp == null) { return NumberEval.ZERO; } double result = sumMatchingCells(aeRange, mp, aeSum); return new NumberEval(result); } private static double sumMatchingCells(AreaEval aeRange, I_MatchPredicate mp, AreaEval aeSum) { int height=aeRange.getHeight(); int width= aeRange.getWidth(); double result = 0.0; for (int r=0; r




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