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add dollarde function 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1897752 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2022-02-04 09:49:44 +00:00
parent e3d995ce72
commit 865913b5c5
3 changed files with 204 additions and 1 deletions
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2
poi/src/main/java/org/apache/poi/ss/formula/atp/AnalysisToolPak.java
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@ -102,7 +102,7 @@ public final class AnalysisToolPak implements UDFFinder {
r(m, "DEC2OCT", null);
r(m, "DELTA", Delta.instance);
r(m, "DISC", null);
r(m, "DOLLARDE", null);
r(m, "DOLLARDE", DollarDe.instance);
r(m, "DOLLARFR", null);
r(m, "DURATION", null);
r(m, "EDATE", EDate.instance);

96
poi/src/main/java/org/apache/poi/ss/formula/functions/DollarDe.java Normal file
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@ -0,0 +1,96 @@
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.ss.formula.functions;
import org.apache.poi.ss.formula.OperationEvaluationContext;
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.OperandResolver;
import org.apache.poi.ss.formula.eval.ValueEval;
import java.math.BigDecimal;
import java.math.MathContext;
import java.text.NumberFormat;
/**
* Implementation for Excel DOLLARDE() function.
* <p>
* <https://support.microsoft.com/en-us/office/dollarde-function-db85aab0-1677-428a-9dfd-a38476693427
*/
public final class DollarDe extends Fixed2ArgFunction implements FreeRefFunction {
public static final FreeRefFunction instance = new DollarDe();
@Override
public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg1, ValueEval arg2) {
try {
Double number1 = evaluateValue(arg1, srcRowIndex, srcColumnIndex);
if (number1 == null) {
return ErrorEval.VALUE_INVALID;
}
Double number2 = evaluateValue(arg2, srcRowIndex, srcColumnIndex);
if (number2 == null) {
return ErrorEval.VALUE_INVALID;
}
int fraction = number2.intValue();
if (fraction < 0) {
return ErrorEval.NUM_ERROR;
} else if (fraction == 0) {
return ErrorEval.DIV_ZERO;
}
long valueLong = number1.longValue();
double valueFractional = number1 - valueLong;
if (valueFractional == 0.0) {
return new NumberEval(valueLong);
}
int iterations = 0;
final int maxIterations = 100;
while (valueFractional < fraction && iterations < maxIterations) {
valueFractional = valueFractional * 10;
iterations++;
}
if (iterations == maxIterations && valueFractional < fraction) {
return new NumberEval(valueLong);
}
BigDecimal calc = new BigDecimal((long)valueFractional)
.divide(BigDecimal.valueOf(10), MathContext.DECIMAL128)
.divide(BigDecimal.valueOf(fraction), MathContext.DECIMAL128);
return new NumberEval(calc.add(BigDecimal.valueOf(valueLong)).doubleValue());
} catch (EvaluationException e) {
return e.getErrorEval();
}
}
@Override
public ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec) {
if (args.length == 2) {
return evaluate(ec.getRowIndex(), ec.getColumnIndex(), args[0], args[1]);
}
return ErrorEval.VALUE_INVALID;
}
private static Double evaluateValue(ValueEval arg, int srcRowIndex, int srcColumnIndex) throws EvaluationException {
ValueEval veText = OperandResolver.getSingleValue(arg, srcRowIndex, srcColumnIndex);
String strText1 = OperandResolver.coerceValueToString(veText);
return OperandResolver.parseDouble(strText1);
}
}

107
poi/src/test/java/org/apache/poi/ss/formula/functions/TestDollarDe.java Normal file
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@ -0,0 +1,107 @@
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.ss.formula.functions;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.formula.OperationEvaluationContext;
import org.apache.poi.ss.formula.eval.BoolEval;
import org.apache.poi.ss.formula.eval.ErrorEval;
import org.apache.poi.ss.formula.eval.NumberEval;
import org.apache.poi.ss.formula.eval.StringEval;
import org.apache.poi.ss.formula.eval.ValueEval;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import static org.apache.poi.ss.util.Utils.addRow;
import static org.apache.poi.ss.util.Utils.assertDouble;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* Tests for {@link DollarDe}
*/
final class TestDollarDe {
private static final OperationEvaluationContext ec = new OperationEvaluationContext(null, null, 0, 0, 0, null);
@Test
void testInvalid() {
confirmInvalidError("A1","B2");
}
@Test
void testNumError() {
confirmNumError("22.5","-40");
}
@Test
void testDiv0() {
confirmDiv0("22.5","0");
confirmDiv0("22.5","0.9");
confirmDiv0("22.5","-0.9");
}
//https://support.microsoft.com/en-us/office/dollarde-function-db85aab0-1677-428a-9dfd-a38476693427
@Test
void testMicrosoftExample1() throws IOException {
try (HSSFWorkbook wb = new HSSFWorkbook()) {
HSSFSheet sheet = wb.createSheet();
HSSFRow row = sheet.createRow(0);
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
HSSFCell cell = row.createCell(0);
assertDouble(fe, cell, "DOLLARDE(1.02,16)", 1.125, 0.00000000000001);
assertDouble(fe, cell, "DOLLARDE(1.02,16.9)", 1.125, 0.00000000000001);
assertDouble(fe, cell, "DOLLARDE(1.1,32)", 1.3125, 0.00000000000001);
assertDouble(fe, cell, "DOLLARDE(1.1,32.1)", 1.3125, 0.00000000000001);
}
}
private static ValueEval invokeValue(String number1, String number2) {
ValueEval[] args = new ValueEval[] { new StringEval(number1), new StringEval(number2) };
return DollarDe.instance.evaluate(args, ec);
}
private static void confirmValue(String number1, String number2, double expected) {
ValueEval result = invokeValue(number1, number2);
assertEquals(NumberEval.class, result.getClass());
assertEquals(expected, ((NumberEval) result).getNumberValue(), 0.00000000000001);
}
private static void confirmInvalidError(String number1, String number2) {
ValueEval result = invokeValue(number1, number2);
assertEquals(ErrorEval.class, result.getClass());
assertEquals(ErrorEval.VALUE_INVALID, result);
}
private static void confirmNumError(String number1, String number2) {
ValueEval result = invokeValue(number1, number2);
assertEquals(ErrorEval.class, result.getClass());
assertEquals(ErrorEval.NUM_ERROR, result);
}
private static void confirmDiv0(String number1, String number2) {
ValueEval result = invokeValue(number1, number2);
assertEquals(ErrorEval.class, result.getClass());
assertEquals(ErrorEval.DIV_ZERO, result);
}
}