78 lines
2.9 KiB
Java
78 lines
2.9 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;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import org.apache.poi.hssf.HSSFTestDataSamples;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
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import org.apache.poi.openxml4j.opc.OPCPackage;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import org.apache.poi.util.TempFile;
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/**
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* Centralises logic for finding/opening sample files in the src/testcases/org/apache/poi/hssf/hssf/data folder.
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*
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* @author Josh Micich
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*/
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public class XSSFTestDataSamples {
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public static final XSSFWorkbook openSampleWorkbook(String sampleName) {
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InputStream is = HSSFTestDataSamples.openSampleFileStream(sampleName);
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try {
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return new XSSFWorkbook(is);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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public static <R extends Workbook> R writeOutAndReadBack(R wb) {
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Workbook result;
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try {
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if (wb instanceof HSSFWorkbook) {
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ByteArrayOutputStream baos = new ByteArrayOutputStream(8192);
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wb.write(baos);
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InputStream is = new ByteArrayInputStream(baos.toByteArray());
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result = new HSSFWorkbook(is);
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} else if (wb instanceof XSSFWorkbook) {
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File tmp = TempFile.createTempFile("poi-ooxml-", ".xlsx");
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FileOutputStream out = new FileOutputStream(tmp);
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wb.write(out);
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out.close();
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OPCPackage pkg = OPCPackage.open(tmp.getAbsolutePath());
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result = new XSSFWorkbook(pkg);
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} else {
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throw new RuntimeException("Unexpected workbook type ("
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+ wb.getClass().getName() + ")");
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}
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} catch (InvalidFormatException e) {
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throw new RuntimeException(e);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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@SuppressWarnings("unchecked")
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R r = (R) result;
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return r;
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}
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}
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