76 lines
3.1 KiB
Java
76 lines
3.1 KiB
Java
/* ====================================================================
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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 org.apache.poi.ss.formula.EvaluationCell;
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import org.apache.poi.ss.formula.EvaluationSheet;
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import org.apache.poi.ss.formula.FormulaParser;
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import org.apache.poi.ss.formula.FormulaType;
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import org.apache.poi.ss.formula.ptg.Ptg;
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/**
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* Internal POI use only
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*/
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public final class XSSFEvaluationWorkbook extends BaseXSSFEvaluationWorkbook {
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private XSSFEvaluationSheet[] _sheetCache;
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public static XSSFEvaluationWorkbook create(XSSFWorkbook book) {
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if (book == null) {
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return null;
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}
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return new XSSFEvaluationWorkbook(book);
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}
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private XSSFEvaluationWorkbook(XSSFWorkbook book) {
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super(book);
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}
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@Override
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public int getSheetIndex(EvaluationSheet evalSheet) {
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XSSFSheet sheet = ((XSSFEvaluationSheet)evalSheet).getXSSFSheet();
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return _uBook.getSheetIndex(sheet);
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}
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@Override
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public EvaluationSheet getSheet(int sheetIndex) {
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// Performance optimization: build sheet cache the first time this is called
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// to avoid re-creating the XSSFEvaluationSheet each time a new cell is evaluated
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// EvaluationWorkbooks make not guarentee to syncronize changes made to
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// the underlying workbook after the EvaluationWorkbook is created.
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if (_sheetCache == null) {
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_sheetCache = new XSSFEvaluationSheet[_uBook.getNumberOfSheets()];
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for (int i=0; i < _uBook.getNumberOfSheets(); i++) {
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_sheetCache[i] = new XSSFEvaluationSheet(_uBook.getSheetAt(i));
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}
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}
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if (sheetIndex < 0 || sheetIndex >= _sheetCache.length) {
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// do this to reuse the out-of-bounds logic and message from XSSFWorkbook
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_uBook.getSheetAt(sheetIndex);
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}
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return _sheetCache[sheetIndex];
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}
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@Override
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public Ptg[] getFormulaTokens(EvaluationCell evalCell) {
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final XSSFCell cell = ((XSSFEvaluationCell)evalCell).getXSSFCell();
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final int sheetIndex = _uBook.getSheetIndex(cell.getSheet());
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final int rowIndex = cell.getRowIndex();
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return FormulaParser.parse(cell.getCellFormula(this), this, FormulaType.CELL, sheetIndex, rowIndex);
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}
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}
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