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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
- limitations under the License.
- ==================================================================== */
- package org.apache.poi.xssf.extractor;
-
- import java.io.IOException;
- import java.io.InputStream;
-
- import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
- import org.apache.poi.openxml4j.opc.OPCPackage;
- import org.apache.poi.ss.usermodel.DataFormatter;
- import org.apache.poi.util.POILogFactory;
- import org.apache.poi.util.POILogger;
- import org.apache.poi.xssf.binary.XSSFBCommentsTable;
- import org.apache.poi.xssf.binary.XSSFBHyperlinksTable;
- import org.apache.poi.xssf.binary.XSSFBSharedStringsTable;
- import org.apache.poi.xssf.binary.XSSFBSheetHandler;
- import org.apache.poi.xssf.binary.XSSFBStylesTable;
- import org.apache.poi.xssf.eventusermodel.XSSFBReader;
- import org.apache.poi.xssf.eventusermodel.XSSFSheetXMLHandler.SheetContentsHandler;
- import org.apache.poi.xssf.model.SharedStrings;
- import org.apache.poi.xssf.usermodel.XSSFRelation;
- import org.apache.xmlbeans.XmlException;
- import org.xml.sax.SAXException;
-
- /**
- * Implementation of a text extractor or xlsb Excel
- * files that uses SAX-like binary parsing.
- *
- * @since 3.16-beta3
- */
- public class XSSFBEventBasedExcelExtractor extends XSSFEventBasedExcelExtractor {
-
- private static final POILogger LOGGER = POILogFactory.getLogger(XSSFBEventBasedExcelExtractor.class);
-
- public static final XSSFRelation[] SUPPORTED_TYPES = new XSSFRelation[]{
- XSSFRelation.XLSB_BINARY_WORKBOOK
- };
-
- private boolean handleHyperlinksInCells;
-
- public XSSFBEventBasedExcelExtractor(String path) throws XmlException, OpenXML4JException, IOException {
- super(path);
- }
-
- public XSSFBEventBasedExcelExtractor(OPCPackage container) throws XmlException, OpenXML4JException, IOException {
- super(container);
- }
-
- public void setHandleHyperlinksInCells(boolean handleHyperlinksInCells) {
- this.handleHyperlinksInCells = handleHyperlinksInCells;
- }
-
- /**
- * Should we return the formula itself, and not
- * the result it produces? Default is false
- * This is currently unsupported for xssfb
- */
- @Override
- public void setFormulasNotResults(boolean formulasNotResults) {
- throw new IllegalArgumentException("Not currently supported");
- }
-
- /**
- * Processes the given sheet
- */
- public void processSheet(
- SheetContentsHandler sheetContentsExtractor,
- XSSFBStylesTable styles,
- XSSFBCommentsTable comments,
- SharedStrings strings,
- InputStream sheetInputStream)
- throws IOException {
-
- DataFormatter formatter;
- if (getLocale() == null) {
- formatter = new DataFormatter();
- } else {
- formatter = new DataFormatter(getLocale());
- }
-
- XSSFBSheetHandler xssfbSheetHandler = new XSSFBSheetHandler(
- sheetInputStream,
- styles, comments, strings, sheetContentsExtractor, formatter, getFormulasNotResults()
- );
- xssfbSheetHandler.parse();
- }
-
- /**
- * Processes the file and returns the text
- */
- public String getText() {
- try {
- XSSFBSharedStringsTable strings = new XSSFBSharedStringsTable(getPackage());
- XSSFBReader xssfbReader = new XSSFBReader(getPackage());
- XSSFBStylesTable styles = xssfbReader.getXSSFBStylesTable();
- XSSFBReader.SheetIterator iter = (XSSFBReader.SheetIterator) xssfbReader.getSheetsData();
-
- StringBuilder text = new StringBuilder(64);
- SheetTextExtractor sheetExtractor = new SheetTextExtractor();
- XSSFBHyperlinksTable hyperlinksTable = null;
- while (iter.hasNext()) {
- InputStream stream = iter.next();
- if (getIncludeSheetNames()) {
- text.append(iter.getSheetName());
- text.append('\n');
- }
- if (handleHyperlinksInCells) {
- hyperlinksTable = new XSSFBHyperlinksTable(iter.getSheetPart());
- }
- XSSFBCommentsTable comments = getIncludeCellComments() ? iter.getXSSFBSheetComments() : null;
- processSheet(sheetExtractor, styles, comments, strings, stream);
- if (getIncludeHeadersFooters()) {
- sheetExtractor.appendHeaderText(text);
- }
- sheetExtractor.appendCellText(text);
- if (getIncludeTextBoxes()) {
- processShapes(iter.getShapes(), text);
- }
- if (getIncludeHeadersFooters()) {
- sheetExtractor.appendFooterText(text);
- }
- sheetExtractor.reset();
- stream.close();
- }
-
- return text.toString();
- } catch (IOException | OpenXML4JException | SAXException e) {
- LOGGER.log(POILogger.WARN, e);
- return null;
- }
- }
-
- }
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