88 lines
3.2 KiB
Java
88 lines
3.2 KiB
Java
/* ====================================================================
|
|
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.hssf.record.formula.eval;
|
|
|
|
import org.apache.poi.hssf.record.formula.functions.Fixed2ArgFunction;
|
|
import org.apache.poi.hssf.record.formula.functions.Function;
|
|
|
|
/**
|
|
* @author Josh Micich
|
|
*/
|
|
public abstract class TwoOperandNumericOperation extends Fixed2ArgFunction {
|
|
|
|
protected final double singleOperandEvaluate(ValueEval arg, int srcCellRow, int srcCellCol) throws EvaluationException {
|
|
ValueEval ve = OperandResolver.getSingleValue(arg, srcCellRow, srcCellCol);
|
|
return OperandResolver.coerceValueToDouble(ve);
|
|
}
|
|
public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0, ValueEval arg1) {
|
|
double result;
|
|
try {
|
|
double d0 = singleOperandEvaluate(arg0, srcRowIndex, srcColumnIndex);
|
|
double d1 = singleOperandEvaluate(arg1, srcRowIndex, srcColumnIndex);
|
|
result = evaluate(d0, d1);
|
|
if (result == 0.0) { // this '==' matches +0.0 and -0.0
|
|
// Excel converts -0.0 to +0.0 for '*', '/', '%', '+' and '^'
|
|
if (!(this instanceof SubtractEvalClass)) {
|
|
return NumberEval.ZERO;
|
|
}
|
|
}
|
|
if (Double.isNaN(result) || Double.isInfinite(result)) {
|
|
return ErrorEval.NUM_ERROR;
|
|
}
|
|
} catch (EvaluationException e) {
|
|
return e.getErrorEval();
|
|
}
|
|
return new NumberEval(result);
|
|
}
|
|
|
|
protected abstract double evaluate(double d0, double d1) throws EvaluationException;
|
|
|
|
public static final Function AddEval = new TwoOperandNumericOperation() {
|
|
protected double evaluate(double d0, double d1) {
|
|
return d0+d1;
|
|
}
|
|
};
|
|
public static final Function DivideEval = new TwoOperandNumericOperation() {
|
|
protected double evaluate(double d0, double d1) throws EvaluationException {
|
|
if (d1 == 0.0) {
|
|
throw new EvaluationException(ErrorEval.DIV_ZERO);
|
|
}
|
|
return d0/d1;
|
|
}
|
|
};
|
|
public static final Function MultiplyEval = new TwoOperandNumericOperation() {
|
|
protected double evaluate(double d0, double d1) {
|
|
return d0*d1;
|
|
}
|
|
};
|
|
public static final Function PowerEval = new TwoOperandNumericOperation() {
|
|
protected double evaluate(double d0, double d1) {
|
|
return Math.pow(d0, d1);
|
|
}
|
|
};
|
|
private static final class SubtractEvalClass extends TwoOperandNumericOperation {
|
|
public SubtractEvalClass() {
|
|
//
|
|
}
|
|
protected double evaluate(double d0, double d1) {
|
|
return d0-d1;
|
|
}
|
|
}
|
|
public static final Function SubtractEval = new SubtractEvalClass();
|
|
}
|