poi/poi-ooxml/src/test/java/org/apache/poi/xssf/XSSFITestDataProvider.java

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   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

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   distributed under the License is distributed on an "AS IS" BASIS,
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   See the License for the specific language governing permissions and
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package org.apache.poi.xssf;

import org.apache.poi.POIDataSamples;
import org.apache.poi.ss.ITestDataProvider;
import org.apache.poi.ss.SpreadsheetVersion;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFFormulaEvaluator;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public final class XSSFITestDataProvider implements ITestDataProvider {
    public static final XSSFITestDataProvider instance = new XSSFITestDataProvider();

    private XSSFITestDataProvider() {
        // enforce singleton
    }

    @Override
    public XSSFWorkbook openSampleWorkbook(String sampleFileName) {
        return XSSFTestDataSamples.openSampleWorkbook(sampleFileName);
    }

    @Override
    public XSSFWorkbook writeOutAndReadBack(Workbook original) {
        if(!(original instanceof XSSFWorkbook)) {
            throw new IllegalArgumentException("Expected an instance of XSSFWorkbook, but had " + original.getClass());
        }
        return XSSFTestDataSamples.writeOutAndReadBack((XSSFWorkbook)original);
    }

    @Override
    public XSSFWorkbook createWorkbook() {
        return new XSSFWorkbook();
    }

    //************ SXSSF-specific methods ***************//
    @Override
    public XSSFWorkbook createWorkbook(int rowAccessWindowSize) {
        return createWorkbook();
    }

    @Override
    public void trackAllColumnsForAutosizing(Sheet sheet) {}
    //************ End SXSSF-specific methods ***************//

    @Override
    public FormulaEvaluator createFormulaEvaluator(Workbook wb) {
        return new XSSFFormulaEvaluator((XSSFWorkbook) wb);
    }

    @Override
    public byte[] getTestDataFileContent(String fileName) {
        return POIDataSamples.getSpreadSheetInstance().readFile(fileName);
    }

    @Override
    public SpreadsheetVersion getSpreadsheetVersion(){
        return SpreadsheetVersion.EXCEL2007;
    }

    @Override
    public String getStandardFileNameExtension() {
        return "xlsx";
    }
}