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* ====================================================================
* 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
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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.Workbook;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
/**
* @author Yegor Kozlov
*/
public final class SXSSFITestDataProvider implements ITestDataProvider {
public static final SXSSFITestDataProvider instance = new SXSSFITestDataProvider();
private ArrayList<SXSSFWorkbook> instances = new ArrayList<SXSSFWorkbook>();
private SXSSFITestDataProvider() {
// enforce singleton
}
public Workbook openSampleWorkbook(String sampleFileName) {
XSSFWorkbook xssfWorkbook = XSSFITestDataProvider.instance.openSampleWorkbook(sampleFileName);
SXSSFWorkbook swb = new SXSSFWorkbook(xssfWorkbook);
instances.add(swb);
return swb;
}
public Workbook writeOutAndReadBack(Workbook wb) {
if(!(wb instanceof SXSSFWorkbook)) {
throw new IllegalArgumentException("Expected an instance of SXSSFWorkbook");
}
Workbook result;
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream(8192);
wb.write(baos);
InputStream is = new ByteArrayInputStream(baos.toByteArray());
result = new XSSFWorkbook(is);
} catch (IOException e) {
throw new RuntimeException(e);
}
return result;
}
public SXSSFWorkbook createWorkbook(){
SXSSFWorkbook wb = new SXSSFWorkbook();
instances.add(wb);
return wb;
}
public byte[] getTestDataFileContent(String fileName) {
return POIDataSamples.getSpreadSheetInstance().readFile(fileName);
}
public SpreadsheetVersion getSpreadsheetVersion(){
return SpreadsheetVersion.EXCEL2007;
}
public String getStandardFileNameExtension() {
return "xlsx";
}
public synchronized boolean cleanup(){
boolean ok = true;
for(int i = 0; i < instances.size(); i++){
SXSSFWorkbook wb = instances.get(i);
ok = ok && wb.dispose();
instances.remove(i);
}
return ok;
}
}