poi/src/ooxml/java/org/apache/poi/xssf/usermodel/BaseXSSFFormulaEvaluator.java

84 lines
3.4 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.xssf.usermodel;
import org.apache.poi.ss.formula.BaseFormulaEvaluator;
import org.apache.poi.ss.formula.EvaluationCell;
import org.apache.poi.ss.formula.WorkbookEvaluator;
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.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.CellValue;
import org.apache.poi.ss.usermodel.RichTextString;
/**
* Internal POI use only - parent of XSSF and SXSSF formula evaluators
*/
public abstract class BaseXSSFFormulaEvaluator extends BaseFormulaEvaluator {
protected BaseXSSFFormulaEvaluator(WorkbookEvaluator bookEvaluator) {
super(bookEvaluator);
}
@Override
protected RichTextString createRichTextString(String str) {
return new XSSFRichTextString(str);
}
public void notifySetFormula(Cell cell) {
_bookEvaluator.notifyUpdateCell(new XSSFEvaluationCell((XSSFCell)cell));
}
public void notifyDeleteCell(Cell cell) {
_bookEvaluator.notifyDeleteCell(new XSSFEvaluationCell((XSSFCell)cell));
}
public void notifyUpdateCell(Cell cell) {
_bookEvaluator.notifyUpdateCell(new XSSFEvaluationCell((XSSFCell)cell));
}
/**
* Turns a XSSFCell / SXSSFCell into a XSSFEvaluationCell
*/
protected abstract EvaluationCell toEvaluationCell(Cell cell);
/**
* Returns a CellValue wrapper around the supplied ValueEval instance.
*/
protected CellValue evaluateFormulaCellValue(Cell cell) {
EvaluationCell evalCell = toEvaluationCell(cell);
ValueEval eval = _bookEvaluator.evaluate(evalCell);
if (eval instanceof NumberEval) {
NumberEval ne = (NumberEval) eval;
return new CellValue(ne.getNumberValue());
}
if (eval instanceof BoolEval) {
BoolEval be = (BoolEval) eval;
return CellValue.valueOf(be.getBooleanValue());
}
if (eval instanceof StringEval) {
StringEval ne = (StringEval) eval;
return new CellValue(ne.getStringValue());
}
if (eval instanceof ErrorEval) {
return CellValue.getError(((ErrorEval)eval).getErrorCode());
}
throw new RuntimeException("Unexpected eval class (" + eval.getClass().getName() + ")");
}
}