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- /* ====================================================================
- 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 java.math.BigDecimal;
- import java.math.RoundingMode;
- import java.text.DecimalFormat;
- import java.text.NumberFormat;
- import java.util.Locale;
-
- import org.apache.poi.ss.formula.eval.BoolEval;
- 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.StringEval;
- import org.apache.poi.ss.formula.eval.ValueEval;
-
- public final class Fixed implements Function1Arg, Function2Arg, Function3Arg {
- @Override
- public ValueEval evaluate(
- int srcRowIndex, int srcColumnIndex,
- ValueEval arg0, ValueEval arg1, ValueEval arg2) {
- return fixed(arg0, arg1, arg2, srcRowIndex, srcColumnIndex);
- }
-
- @Override
- public ValueEval evaluate(
- int srcRowIndex, int srcColumnIndex, ValueEval arg0, ValueEval arg1) {
- return fixed(arg0, arg1, BoolEval.FALSE, srcRowIndex, srcColumnIndex);
- }
-
- @Override
- public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0) {
- return fixed(arg0, new NumberEval(2), BoolEval.FALSE, srcRowIndex, srcColumnIndex);
- }
-
- @Override
- public ValueEval evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex) {
- switch (args.length) {
- case 1:
- return fixed(args[0], new NumberEval(2), BoolEval.FALSE,
- srcRowIndex, srcColumnIndex);
- case 2:
- return fixed(args[0], args[1], BoolEval.FALSE,
- srcRowIndex, srcColumnIndex);
- case 3:
- return fixed(args[0], args[1], args[2], srcRowIndex, srcColumnIndex);
- }
- return ErrorEval.VALUE_INVALID;
- }
-
- private ValueEval fixed(
- ValueEval numberParam, ValueEval placesParam,
- ValueEval skipThousandsSeparatorParam,
- int srcRowIndex, int srcColumnIndex) {
- try {
- ValueEval numberValueEval =
- OperandResolver.getSingleValue(
- numberParam, srcRowIndex, srcColumnIndex);
- BigDecimal number =
- new BigDecimal(OperandResolver.coerceValueToDouble(numberValueEval));
- ValueEval placesValueEval =
- OperandResolver.getSingleValue(
- placesParam, srcRowIndex, srcColumnIndex);
- int places = OperandResolver.coerceValueToInt(placesValueEval);
- ValueEval skipThousandsSeparatorValueEval =
- OperandResolver.getSingleValue(
- skipThousandsSeparatorParam, srcRowIndex, srcColumnIndex);
- Boolean skipThousandsSeparator =
- OperandResolver.coerceValueToBoolean(
- skipThousandsSeparatorValueEval, false);
-
- // Round number to respective places.
- number = number.setScale(places, RoundingMode.HALF_UP);
-
- // Format number conditionally using a thousands separator.
- NumberFormat nf = NumberFormat.getNumberInstance(Locale.US);
- DecimalFormat formatter = (DecimalFormat)nf;
- formatter.setGroupingUsed(! skipThousandsSeparator);
- formatter.setMinimumFractionDigits(places >= 0 ? places : 0);
- formatter.setMaximumFractionDigits(places >= 0 ? places : 0);
- String numberString = formatter.format(number.doubleValue());
-
- // Return the result as a StringEval.
- return new StringEval(numberString);
- } catch (EvaluationException e) {
- return e.getErrorEval();
- }
- }
- }
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