| /* ==================================================================== |
| 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.examples.ss; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.poi.EncryptedDocumentException; |
| import org.apache.poi.hslf.usermodel.HSLFSlideShow; |
| import org.apache.poi.hssf.usermodel.HSSFObjectData; |
| import org.apache.poi.hssf.usermodel.HSSFWorkbook; |
| import org.apache.poi.hwpf.HWPFDocument; |
| import org.apache.poi.openxml4j.exceptions.InvalidFormatException; |
| import org.apache.poi.openxml4j.exceptions.OpenXML4JException; |
| import org.apache.poi.openxml4j.opc.PackagePart; |
| import org.apache.poi.poifs.filesystem.DirectoryNode; |
| import org.apache.poi.poifs.filesystem.Entry; |
| import org.apache.poi.sl.usermodel.SlideShow; |
| import org.apache.poi.ss.usermodel.Workbook; |
| import org.apache.poi.ss.usermodel.WorkbookFactory; |
| import org.apache.poi.xslf.usermodel.XMLSlideShow; |
| import org.apache.poi.xssf.usermodel.XSSFWorkbook; |
| import org.apache.poi.xwpf.usermodel.XWPFDocument; |
| import org.apache.xmlbeans.XmlException; |
| |
| /** |
| * Loads embedded resources from Workbooks. Code taken from the website: |
| * https://poi.apache.org/spreadsheet/quick-guide.html#Embedded |
| */ |
| @SuppressWarnings({"java:S106","java:S4823"}) |
| public final class LoadEmbedded { |
| private LoadEmbedded() {} |
| |
| public static void main(String[] args) throws IOException, EncryptedDocumentException, OpenXML4JException, XmlException { |
| Workbook wb = WorkbookFactory.create(new File(args[0])); |
| loadEmbedded(wb); |
| } |
| |
| public static void loadEmbedded(Workbook wb) throws IOException, InvalidFormatException, OpenXML4JException, XmlException { |
| if (wb instanceof HSSFWorkbook) { |
| loadEmbedded((HSSFWorkbook)wb); |
| } |
| else if (wb instanceof XSSFWorkbook) { |
| loadEmbedded((XSSFWorkbook)wb); |
| } |
| else { |
| throw new IllegalArgumentException(wb.getClass().getName()); |
| } |
| } |
| |
| public static void loadEmbedded(HSSFWorkbook workbook) throws IOException { |
| for (HSSFObjectData obj : workbook.getAllEmbeddedObjects()) { |
| //the OLE2 Class Name of the object |
| String oleName = obj.getOLE2ClassName(); |
| if (oleName.equals("Worksheet")) { |
| DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
| HSSFWorkbook embeddedWorkbook = new HSSFWorkbook(dn, false); |
| embeddedWorkbook.close(); |
| } else if (oleName.equals("Document")) { |
| DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
| HWPFDocument embeddedWordDocument = new HWPFDocument(dn); |
| embeddedWordDocument.close(); |
| } else if (oleName.equals("Presentation")) { |
| DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
| SlideShow<?,?> embeddedSlieShow = new HSLFSlideShow(dn); |
| embeddedSlieShow.close(); |
| } else { |
| if(obj.hasDirectoryEntry()){ |
| // The DirectoryEntry is a DocumentNode. Examine its entries to find out what it is |
| DirectoryNode dn = (DirectoryNode) obj.getDirectory(); |
| for (Entry entry : dn) { |
| //System.out.println(oleName + "." + entry.getName()); |
| } |
| } else { |
| // There is no DirectoryEntry |
| // Recover the object's data from the HSSFObjectData instance. |
| byte[] objectData = obj.getObjectData(); |
| } |
| } |
| } |
| } |
| |
| public static void loadEmbedded(XSSFWorkbook workbook) throws IOException, InvalidFormatException, OpenXML4JException, XmlException { |
| for (PackagePart pPart : workbook.getAllEmbeddedParts()) { |
| String contentType = pPart.getContentType(); |
| if (contentType.equals("application/vnd.ms-excel")) { |
| // Excel Workbook - either binary or OpenXML |
| HSSFWorkbook embeddedWorkbook = new HSSFWorkbook(pPart.getInputStream()); |
| embeddedWorkbook.close(); |
| } else if (contentType.equals("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")) { |
| // Excel Workbook - OpenXML file format |
| XSSFWorkbook embeddedWorkbook = new XSSFWorkbook(pPart.getInputStream()); |
| embeddedWorkbook.close(); |
| } else if (contentType.equals("application/msword")) { |
| // Word Document - binary (OLE2CDF) file format |
| HWPFDocument document = new HWPFDocument(pPart.getInputStream()); |
| document.close(); |
| } else if (contentType.equals("application/vnd.openxmlformats-officedocument.wordprocessingml.document")) { |
| // Word Document - OpenXML file format |
| XWPFDocument document = new XWPFDocument(pPart.getInputStream()); |
| document.close(); |
| } else if (contentType.equals("application/vnd.ms-powerpoint")) { |
| // PowerPoint Document - binary file format |
| HSLFSlideShow slideShow = new HSLFSlideShow(pPart.getInputStream()); |
| slideShow.close(); |
| } else if (contentType.equals("application/vnd.openxmlformats-officedocument.presentationml.presentation")) { |
| // PowerPoint Document - OpenXML file format |
| XMLSlideShow slideShow = new XMLSlideShow(pPart.getInputStream()); |
| slideShow.close(); |
| } else { |
| // Any other type of embedded object. |
| System.out.println("Unknown Embedded Document: " + contentType); |
| InputStream inputStream = pPart.getInputStream(); |
| inputStream.close(); |
| } |
| } |
| } |
| } |