147 lines
4.8 KiB
Java
147 lines
4.8 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.stress;
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import static org.junit.Assert.assertNotNull;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
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import org.apache.poi.ss.extractor.EmbeddedData;
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import org.apache.poi.ss.extractor.EmbeddedExtractor;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.ss.usermodel.WorkbookFactory;
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import org.apache.poi.util.RecordFormatException;
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public abstract class SpreadsheetHandler extends AbstractFileHandler {
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public void handleWorkbook(Workbook wb) throws IOException {
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// try to access some of the content
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readContent(wb);
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// write out the file
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writeToArray(wb);
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// access some more content (we had cases where writing corrupts the data in memory)
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readContent(wb);
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// write once more
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ByteArrayOutputStream out = writeToArray(wb);
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// read in the written file
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Workbook read;
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try {
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read = WorkbookFactory.create(new ByteArrayInputStream(out.toByteArray()));
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} catch (InvalidFormatException e) {
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throw new IllegalStateException(e);
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}
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assertNotNull(read);
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readContent(read);
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extractEmbedded(read);
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modifyContent(read);
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read.close();
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}
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private ByteArrayOutputStream writeToArray(Workbook wb) throws IOException {
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ByteArrayOutputStream stream = new ByteArrayOutputStream();
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try {
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wb.write(stream);
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} finally {
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stream.close();
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}
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return stream;
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}
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private void readContent(Workbook wb) {
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for(int i = 0;i < wb.getNumberOfSheets();i++) {
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Sheet sheet = wb.getSheetAt(i);
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assertNotNull(wb.getSheet(sheet.getSheetName()));
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sheet.groupColumn((short) 4, (short) 5);
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sheet.setColumnGroupCollapsed(4, true);
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sheet.setColumnGroupCollapsed(4, false);
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// don't do this for very large sheets as it will take a long time
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if(sheet.getPhysicalNumberOfRows() > 1000) {
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continue;
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}
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for(Row row : sheet) {
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for(Cell cell : row) {
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assertNotNull(cell.toString());
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}
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}
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}
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}
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private void extractEmbedded(Workbook wb) throws IOException {
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EmbeddedExtractor ee = new EmbeddedExtractor();
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for (Sheet s : wb) {
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for (EmbeddedData ed : ee.extractAll(s)) {
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assertNotNull(ed.getFilename());
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assertNotNull(ed.getEmbeddedData());
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assertNotNull(ed.getShape());
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}
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}
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}
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private void modifyContent(Workbook wb) {
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/* a number of file fail because of various things: udf, unimplemented functions, ...
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we would need quite a list of excludes and the large regression tests would probably
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take a lot longer to run...
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try {
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// try to re-compute all formulas to find cases where parsing fails
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wb.getCreationHelper().createFormulaEvaluator().evaluateAll();
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} catch (RuntimeException e) {
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// only allow a specific exception which indicates that an external
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// reference was not found
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if(!e.getMessage().contains("Could not resolve external workbook name")) {
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throw e;
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}
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}*/
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for (int i=wb.getNumberOfSheets()-1; i>=0; i--) {
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try {
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wb.cloneSheet(i);
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} catch (RecordFormatException e) {
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if (e.getCause() instanceof CloneNotSupportedException) {
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// ignore me
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continue;
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}
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throw e;
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} catch (RuntimeException e) {
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if ("Could not find 'internal references' EXTERNALBOOK".equals(e.getMessage()) ||
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"CountryRecord not found".equals(e.getMessage()) ||
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"Cannot add more than 65535 shapes".equals(e.getMessage()) ) {
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// ignore these here for now
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continue;
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}
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throw e;
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}
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}
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}
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} |