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/* ==================================================================== |
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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.ss.examples; |
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import java.io.File; |
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import java.io.InputStream; |
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import org.apache.poi.hslf.usermodel.HSLFSlideShow; |
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import org.apache.poi.hssf.usermodel.HSSFObjectData; |
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import org.apache.poi.hssf.usermodel.HSSFWorkbook; |
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import org.apache.poi.hwpf.HWPFDocument; |
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import org.apache.poi.openxml4j.opc.OPCPackage; |
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import org.apache.poi.openxml4j.opc.PackagePart; |
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import org.apache.poi.poifs.filesystem.DirectoryNode; |
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import org.apache.poi.poifs.filesystem.Entry; |
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import org.apache.poi.sl.usermodel.SlideShow; |
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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.xslf.usermodel.XSLFSlideShow; |
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import org.apache.poi.xssf.usermodel.XSSFWorkbook; |
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import org.apache.poi.xwpf.usermodel.XWPFDocument; |
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/** |
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* Loads embedded resources from Workbooks. Code taken from the website: |
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* https://poi.apache.org/spreadsheet/quick-guide.html#Embedded |
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*/ |
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public class LoadEmbedded { |
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public static void main(String[] args) throws Exception { |
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Workbook wb = WorkbookFactory.create(new File(args[0])); |
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loadEmbedded(wb); |
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} |
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public static void loadEmbedded(Workbook wb) throws Exception { |
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if (wb instanceof HSSFWorkbook) { |
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loadEmbedded((HSSFWorkbook)wb); |
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} |
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else if (wb instanceof XSSFWorkbook) { |
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loadEmbedded((XSSFWorkbook)wb); |
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} |
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else { |
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throw new IllegalArgumentException(wb.getClass().getName()); |
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} |
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} |
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public static void loadEmbedded(HSSFWorkbook workbook) throws Exception { |
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for (HSSFObjectData obj : workbook.getAllEmbeddedObjects()) { |
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//the OLE2 Class Name of the object |
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String oleName = obj.getOLE2ClassName(); |
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if (oleName.equals("Worksheet")) { |
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DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
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HSSFWorkbook embeddedWorkbook = new HSSFWorkbook(dn, false); |
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//System.out.println(entry.getName() + ": " + embeddedWorkbook.getNumberOfSheets()); |
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} else if (oleName.equals("Document")) { |
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DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
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HWPFDocument embeddedWordDocument = new HWPFDocument(dn); |
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//System.out.println(entry.getName() + ": " + embeddedWordDocument.getRange().text()); |
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} else if (oleName.equals("Presentation")) { |
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DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
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SlideShow<?,?> embeddedPowerPointDocument = new HSLFSlideShow(dn); |
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//System.out.println(entry.getName() + ": " + embeddedPowerPointDocument.getSlides().length); |
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} else { |
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if(obj.hasDirectoryEntry()){ |
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// The DirectoryEntry is a DocumentNode. Examine its entries to find out what it is |
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DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
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for (Entry entry : dn) { |
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//System.out.println(oleName + "." + entry.getName()); |
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} |
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} else { |
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// There is no DirectoryEntry |
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// Recover the object's data from the HSSFObjectData instance. |
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byte[] objectData = obj.getObjectData(); |
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} |
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} |
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} |
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} |
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public static void loadEmbedded(XSSFWorkbook workbook) throws Exception { |
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for (PackagePart pPart : workbook.getAllEmbedds()) { |
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String contentType = pPart.getContentType(); |
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// Excel Workbook - either binary or OpenXML |
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if (contentType.equals("application/vnd.ms-excel")) { |
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HSSFWorkbook embeddedWorkbook = new HSSFWorkbook(pPart.getInputStream()); |
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} |
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// Excel Workbook - OpenXML file format |
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else if (contentType.equals("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")) { |
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OPCPackage docPackage = OPCPackage.open(pPart.getInputStream()); |
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XSSFWorkbook embeddedWorkbook = new XSSFWorkbook(docPackage); |
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} |
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// Word Document - binary (OLE2CDF) file format |
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else if (contentType.equals("application/msword")) { |
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HWPFDocument document = new HWPFDocument(pPart.getInputStream()); |
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} |
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// Word Document - OpenXML file format |
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else if (contentType.equals("application/vnd.openxmlformats-officedocument.wordprocessingml.document")) { |
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OPCPackage docPackage = OPCPackage.open(pPart.getInputStream()); |
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XWPFDocument document = new XWPFDocument(docPackage); |
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} |
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// PowerPoint Document - binary file format |
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else if (contentType.equals("application/vnd.ms-powerpoint")) { |
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HSLFSlideShow slideShow = new HSLFSlideShow(pPart.getInputStream()); |
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} |
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// PowerPoint Document - OpenXML file format |
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else if (contentType.equals("application/vnd.openxmlformats-officedocument.presentationml.presentation")) { |
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OPCPackage docPackage = OPCPackage.open(pPart.getInputStream()); |
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XSLFSlideShow slideShow = new XSLFSlideShow(docPackage); |
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} |
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// Any other type of embedded object. |
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else { |
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System.out.println("Unknown Embedded Document: " + contentType); |
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InputStream inputStream = pPart.getInputStream(); |
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} |
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} |
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} |
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} |