Refactor the core part of the XSSF Formula Evaluator, to make SXSSF overrides easier #58200
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1693661 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
parent
4782319fd1
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1761949b02
@ -20,9 +20,7 @@ package org.apache.poi.xssf.usermodel;
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import java.util.List;
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import org.apache.poi.ss.SpreadsheetVersion;
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import org.apache.poi.ss.formula.EvaluationCell;
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import org.apache.poi.ss.formula.EvaluationName;
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import org.apache.poi.ss.formula.EvaluationSheet;
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import org.apache.poi.ss.formula.EvaluationWorkbook;
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import org.apache.poi.ss.formula.FormulaParser;
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import org.apache.poi.ss.formula.FormulaParsingWorkbook;
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@ -44,7 +42,7 @@ import org.apache.poi.xssf.model.ExternalLinksTable;
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import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDefinedName;
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/**
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* Internal POI use only
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* Internal POI use only - parent of XSSF and SXSSF evaluation workbooks
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*/
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public abstract class BaseXSSFEvaluationWorkbook implements FormulaRenderingWorkbook, EvaluationWorkbook, FormulaParsingWorkbook {
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protected final XSSFWorkbook _uBook;
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@ -0,0 +1,225 @@
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/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.xssf.usermodel;
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import java.util.Map;
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import org.apache.poi.ss.formula.CollaboratingWorkbooksEnvironment;
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import org.apache.poi.ss.formula.EvaluationCell;
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import org.apache.poi.ss.formula.WorkbookEvaluator;
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import org.apache.poi.ss.formula.WorkbookEvaluatorProvider;
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import org.apache.poi.ss.formula.eval.BoolEval;
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import org.apache.poi.ss.formula.eval.ErrorEval;
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import org.apache.poi.ss.formula.eval.NumberEval;
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import org.apache.poi.ss.formula.eval.StringEval;
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import org.apache.poi.ss.formula.eval.ValueEval;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.CellValue;
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import org.apache.poi.ss.usermodel.FormulaEvaluator;
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/**
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* Internal POI use only - parent of XSSF and SXSSF formula evaluators
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*/
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public abstract class BaseXSSFFormulaEvaluator implements FormulaEvaluator, WorkbookEvaluatorProvider {
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private WorkbookEvaluator _bookEvaluator;
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protected BaseXSSFFormulaEvaluator(WorkbookEvaluator bookEvaluator) {
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_bookEvaluator = bookEvaluator;
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}
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/**
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* Should be called whenever there are major changes (e.g. moving sheets) to input cells
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* in the evaluated workbook.
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* Failure to call this method after changing cell values will cause incorrect behaviour
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* of the evaluate~ methods of this class
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*/
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public void clearAllCachedResultValues() {
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_bookEvaluator.clearAllCachedResultValues();
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}
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public void notifySetFormula(Cell cell) {
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_bookEvaluator.notifyUpdateCell(new XSSFEvaluationCell((XSSFCell)cell));
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}
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public void notifyDeleteCell(Cell cell) {
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_bookEvaluator.notifyDeleteCell(new XSSFEvaluationCell((XSSFCell)cell));
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}
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public void notifyUpdateCell(Cell cell) {
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_bookEvaluator.notifyUpdateCell(new XSSFEvaluationCell((XSSFCell)cell));
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}
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/**
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* If cell contains a formula, the formula is evaluated and returned,
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* else the CellValue simply copies the appropriate cell value from
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* the cell and also its cell type. This method should be preferred over
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* evaluateInCell() when the call should not modify the contents of the
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* original cell.
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* @param cell
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*/
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public CellValue evaluate(Cell cell) {
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if (cell == null) {
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return null;
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}
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switch (cell.getCellType()) {
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case XSSFCell.CELL_TYPE_BOOLEAN:
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return CellValue.valueOf(cell.getBooleanCellValue());
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case XSSFCell.CELL_TYPE_ERROR:
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return CellValue.getError(cell.getErrorCellValue());
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case XSSFCell.CELL_TYPE_FORMULA:
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return evaluateFormulaCellValue(cell);
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case XSSFCell.CELL_TYPE_NUMERIC:
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return new CellValue(cell.getNumericCellValue());
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case XSSFCell.CELL_TYPE_STRING:
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return new CellValue(cell.getRichStringCellValue().getString());
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case XSSFCell.CELL_TYPE_BLANK:
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return null;
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}
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throw new IllegalStateException("Bad cell type (" + cell.getCellType() + ")");
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}
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/**
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* If cell contains formula, it evaluates the formula,
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* and saves the result of the formula. The cell
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* remains as a formula cell.
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* Else if cell does not contain formula, this method leaves
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* the cell unchanged.
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* Note that the type of the formula result is returned,
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* so you know what kind of value is also stored with
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* the formula.
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* <pre>
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* int evaluatedCellType = evaluator.evaluateFormulaCell(cell);
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* </pre>
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* Be aware that your cell will hold both the formula,
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* and the result. If you want the cell replaced with
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* the result of the formula, use {@link #evaluate(org.apache.poi.ss.usermodel.Cell)} }
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* @param cell The cell to evaluate
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* @return The type of the formula result (the cell's type remains as HSSFCell.CELL_TYPE_FORMULA however)
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*/
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public int evaluateFormulaCell(Cell cell) {
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if (cell == null || cell.getCellType() != XSSFCell.CELL_TYPE_FORMULA) {
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return -1;
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}
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CellValue cv = evaluateFormulaCellValue(cell);
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// cell remains a formula cell, but the cached value is changed
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setCellValue(cell, cv);
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return cv.getCellType();
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}
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/**
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* If cell contains formula, it evaluates the formula, and
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* puts the formula result back into the cell, in place
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* of the old formula.
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* Else if cell does not contain formula, this method leaves
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* the cell unchanged.
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*/
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protected void doEvaluateInCell(Cell cell) {
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if (cell == null) return;
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if (cell.getCellType() == XSSFCell.CELL_TYPE_FORMULA) {
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CellValue cv = evaluateFormulaCellValue(cell);
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setCellType(cell, cv); // cell will no longer be a formula cell
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setCellValue(cell, cv);
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}
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}
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private static void setCellType(Cell cell, CellValue cv) {
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int cellType = cv.getCellType();
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switch (cellType) {
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case XSSFCell.CELL_TYPE_BOOLEAN:
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case XSSFCell.CELL_TYPE_ERROR:
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case XSSFCell.CELL_TYPE_NUMERIC:
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case XSSFCell.CELL_TYPE_STRING:
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cell.setCellType(cellType);
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return;
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case XSSFCell.CELL_TYPE_BLANK:
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// never happens - blanks eventually get translated to zero
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case XSSFCell.CELL_TYPE_FORMULA:
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// this will never happen, we have already evaluated the formula
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}
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throw new IllegalStateException("Unexpected cell value type (" + cellType + ")");
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}
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private static void setCellValue(Cell cell, CellValue cv) {
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int cellType = cv.getCellType();
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switch (cellType) {
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case XSSFCell.CELL_TYPE_BOOLEAN:
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cell.setCellValue(cv.getBooleanValue());
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break;
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case XSSFCell.CELL_TYPE_ERROR:
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cell.setCellErrorValue(cv.getErrorValue());
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break;
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case XSSFCell.CELL_TYPE_NUMERIC:
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cell.setCellValue(cv.getNumberValue());
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break;
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case XSSFCell.CELL_TYPE_STRING:
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cell.setCellValue(new XSSFRichTextString(cv.getStringValue()));
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break;
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case XSSFCell.CELL_TYPE_BLANK:
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// never happens - blanks eventually get translated to zero
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case XSSFCell.CELL_TYPE_FORMULA:
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// this will never happen, we have already evaluated the formula
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default:
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throw new IllegalStateException("Unexpected cell value type (" + cellType + ")");
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}
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}
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/**
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* Turns a XSSFCell / SXSSFCell into a XSSFEvaluationCell
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*/
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protected abstract EvaluationCell toEvaluationCell(Cell cell);
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/**
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* Returns a CellValue wrapper around the supplied ValueEval instance.
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*/
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private CellValue evaluateFormulaCellValue(Cell cell) {
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EvaluationCell evalCell = toEvaluationCell(cell);
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ValueEval eval = _bookEvaluator.evaluate(evalCell);
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if (eval instanceof NumberEval) {
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NumberEval ne = (NumberEval) eval;
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return new CellValue(ne.getNumberValue());
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}
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if (eval instanceof BoolEval) {
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BoolEval be = (BoolEval) eval;
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return CellValue.valueOf(be.getBooleanValue());
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}
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if (eval instanceof StringEval) {
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StringEval ne = (StringEval) eval;
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return new CellValue(ne.getStringValue());
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}
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if (eval instanceof ErrorEval) {
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return CellValue.getError(((ErrorEval)eval).getErrorCode());
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}
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throw new RuntimeException("Unexpected eval class (" + eval.getClass().getName() + ")");
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}
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public void setupReferencedWorkbooks(Map<String, FormulaEvaluator> evaluators) {
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CollaboratingWorkbooksEnvironment.setupFormulaEvaluator(evaluators);
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}
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public WorkbookEvaluator _getWorkbookEvaluator() {
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return _bookEvaluator;
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}
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/** {@inheritDoc} */
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public void setIgnoreMissingWorkbooks(boolean ignore){
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_bookEvaluator.setIgnoreMissingWorkbooks(ignore);
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}
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/** {@inheritDoc} */
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public void setDebugEvaluationOutputForNextEval(boolean value){
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_bookEvaluator.setDebugEvaluationOutputForNextEval(value);
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}
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}
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@ -17,23 +17,12 @@
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package org.apache.poi.xssf.usermodel;
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import java.util.Map;
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import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
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import org.apache.poi.ss.formula.CollaboratingWorkbooksEnvironment;
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import org.apache.poi.ss.formula.EvaluationCell;
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import org.apache.poi.ss.formula.IStabilityClassifier;
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import org.apache.poi.ss.formula.WorkbookEvaluator;
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import org.apache.poi.ss.formula.WorkbookEvaluatorProvider;
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import org.apache.poi.ss.formula.eval.BoolEval;
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import org.apache.poi.ss.formula.eval.ErrorEval;
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import org.apache.poi.ss.formula.eval.NumberEval;
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import org.apache.poi.ss.formula.eval.StringEval;
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import org.apache.poi.ss.formula.eval.ValueEval;
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import org.apache.poi.ss.formula.udf.UDFFinder;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.CellValue;
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import org.apache.poi.ss.usermodel.FormulaEvaluator;
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/**
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* Evaluates formula cells.<p/>
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@ -42,9 +31,7 @@ import org.apache.poi.ss.usermodel.FormulaEvaluator;
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* cell values. Be sure to call {@link #clearAllCachedResultValues()} if any workbook cells are changed between
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* calls to evaluate~ methods on this class.
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*/
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public class XSSFFormulaEvaluator implements FormulaEvaluator, WorkbookEvaluatorProvider {
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private WorkbookEvaluator _bookEvaluator;
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public final class XSSFFormulaEvaluator extends BaseXSSFFormulaEvaluator {
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private XSSFWorkbook _book;
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public XSSFFormulaEvaluator(XSSFWorkbook workbook) {
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@ -54,7 +41,7 @@ public class XSSFFormulaEvaluator implements FormulaEvaluator, WorkbookEvaluator
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this(workbook, new WorkbookEvaluator(XSSFEvaluationWorkbook.create(workbook), stabilityClassifier, udfFinder));
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}
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protected XSSFFormulaEvaluator(XSSFWorkbook workbook, WorkbookEvaluator bookEvaluator) {
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_bookEvaluator = bookEvaluator;
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super(bookEvaluator);
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_book = workbook;
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}
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@ -68,85 +55,6 @@ public class XSSFFormulaEvaluator implements FormulaEvaluator, WorkbookEvaluator
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return new XSSFFormulaEvaluator(workbook, stabilityClassifier, udfFinder);
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}
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/**
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* Should be called whenever there are major changes (e.g. moving sheets) to input cells
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* in the evaluated workbook.
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* Failure to call this method after changing cell values will cause incorrect behaviour
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* of the evaluate~ methods of this class
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*/
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public void clearAllCachedResultValues() {
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_bookEvaluator.clearAllCachedResultValues();
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}
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public void notifySetFormula(Cell cell) {
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_bookEvaluator.notifyUpdateCell(new XSSFEvaluationCell((XSSFCell)cell));
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}
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public void notifyDeleteCell(Cell cell) {
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_bookEvaluator.notifyDeleteCell(new XSSFEvaluationCell((XSSFCell)cell));
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}
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public void notifyUpdateCell(Cell cell) {
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_bookEvaluator.notifyUpdateCell(new XSSFEvaluationCell((XSSFCell)cell));
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}
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/**
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* If cell contains a formula, the formula is evaluated and returned,
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* else the CellValue simply copies the appropriate cell value from
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* the cell and also its cell type. This method should be preferred over
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* evaluateInCell() when the call should not modify the contents of the
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* original cell.
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* @param cell
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*/
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public CellValue evaluate(Cell cell) {
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if (cell == null) {
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return null;
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}
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switch (cell.getCellType()) {
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case XSSFCell.CELL_TYPE_BOOLEAN:
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return CellValue.valueOf(cell.getBooleanCellValue());
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case XSSFCell.CELL_TYPE_ERROR:
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return CellValue.getError(cell.getErrorCellValue());
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case XSSFCell.CELL_TYPE_FORMULA:
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return evaluateFormulaCellValue(cell);
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case XSSFCell.CELL_TYPE_NUMERIC:
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return new CellValue(cell.getNumericCellValue());
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case XSSFCell.CELL_TYPE_STRING:
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return new CellValue(cell.getRichStringCellValue().getString());
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case XSSFCell.CELL_TYPE_BLANK:
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return null;
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}
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throw new IllegalStateException("Bad cell type (" + cell.getCellType() + ")");
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}
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/**
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* If cell contains formula, it evaluates the formula,
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* and saves the result of the formula. The cell
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* remains as a formula cell.
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* Else if cell does not contain formula, this method leaves
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* the cell unchanged.
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* Note that the type of the formula result is returned,
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* so you know what kind of value is also stored with
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* the formula.
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* <pre>
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* int evaluatedCellType = evaluator.evaluateFormulaCell(cell);
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* </pre>
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* Be aware that your cell will hold both the formula,
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* and the result. If you want the cell replaced with
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* the result of the formula, use {@link #evaluate(org.apache.poi.ss.usermodel.Cell)} }
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* @param cell The cell to evaluate
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* @return The type of the formula result (the cell's type remains as HSSFCell.CELL_TYPE_FORMULA however)
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*/
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public int evaluateFormulaCell(Cell cell) {
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if (cell == null || cell.getCellType() != XSSFCell.CELL_TYPE_FORMULA) {
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return -1;
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}
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CellValue cv = evaluateFormulaCellValue(cell);
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// cell remains a formula cell, but the cached value is changed
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setCellValue(cell, cv);
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return cv.getCellType();
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}
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/**
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* If cell contains formula, it evaluates the formula, and
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* puts the formula result back into the cell, in place
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@ -167,54 +75,6 @@ public class XSSFFormulaEvaluator implements FormulaEvaluator, WorkbookEvaluator
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doEvaluateInCell(cell);
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return (XSSFCell)cell;
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}
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protected void doEvaluateInCell(Cell cell) {
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if (cell == null) return;
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if (cell.getCellType() == XSSFCell.CELL_TYPE_FORMULA) {
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CellValue cv = evaluateFormulaCellValue(cell);
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setCellType(cell, cv); // cell will no longer be a formula cell
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setCellValue(cell, cv);
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}
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}
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private static void setCellType(Cell cell, CellValue cv) {
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int cellType = cv.getCellType();
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switch (cellType) {
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case XSSFCell.CELL_TYPE_BOOLEAN:
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case XSSFCell.CELL_TYPE_ERROR:
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case XSSFCell.CELL_TYPE_NUMERIC:
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case XSSFCell.CELL_TYPE_STRING:
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cell.setCellType(cellType);
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return;
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case XSSFCell.CELL_TYPE_BLANK:
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// never happens - blanks eventually get translated to zero
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case XSSFCell.CELL_TYPE_FORMULA:
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// this will never happen, we have already evaluated the formula
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}
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throw new IllegalStateException("Unexpected cell value type (" + cellType + ")");
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}
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private static void setCellValue(Cell cell, CellValue cv) {
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int cellType = cv.getCellType();
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switch (cellType) {
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case XSSFCell.CELL_TYPE_BOOLEAN:
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cell.setCellValue(cv.getBooleanValue());
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break;
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case XSSFCell.CELL_TYPE_ERROR:
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cell.setCellErrorValue(cv.getErrorValue());
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break;
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case XSSFCell.CELL_TYPE_NUMERIC:
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cell.setCellValue(cv.getNumberValue());
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break;
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case XSSFCell.CELL_TYPE_STRING:
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cell.setCellValue(new XSSFRichTextString(cv.getStringValue()));
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break;
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case XSSFCell.CELL_TYPE_BLANK:
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// never happens - blanks eventually get translated to zero
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case XSSFCell.CELL_TYPE_FORMULA:
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// this will never happen, we have already evaluated the formula
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default:
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throw new IllegalStateException("Unexpected cell value type (" + cellType + ")");
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}
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}
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/**
|
||||
* Loops over all cells in all sheets of the supplied
|
||||
@ -256,46 +116,4 @@ public class XSSFFormulaEvaluator implements FormulaEvaluator, WorkbookEvaluator
|
||||
|
||||
return new XSSFEvaluationCell((XSSFCell)cell);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a CellValue wrapper around the supplied ValueEval instance.
|
||||
*/
|
||||
private 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() + ")");
|
||||
}
|
||||
|
||||
public void setupReferencedWorkbooks(Map<String, FormulaEvaluator> evaluators) {
|
||||
CollaboratingWorkbooksEnvironment.setupFormulaEvaluator(evaluators);
|
||||
}
|
||||
|
||||
public WorkbookEvaluator _getWorkbookEvaluator() {
|
||||
return _bookEvaluator;
|
||||
}
|
||||
|
||||
/** {@inheritDoc} */
|
||||
public void setIgnoreMissingWorkbooks(boolean ignore){
|
||||
_bookEvaluator.setIgnoreMissingWorkbooks(ignore);
|
||||
}
|
||||
|
||||
/** {@inheritDoc} */
|
||||
public void setDebugEvaluationOutputForNextEval(boolean value){
|
||||
_bookEvaluator.setDebugEvaluationOutputForNextEval(value);
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user