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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
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package org.apache.poi.hslf.examples;
import org.apache.poi.hslf.usermodel.*;
import org.apache.poi.hslf.model.*;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Range;
import org.apache.poi.hwpf.usermodel.Paragraph;
import java.io.*;
/**
* Demonstrates how you can extract misc embedded data from a ppt file
*
* @author Yegor Kozlov
*/
public final class DataExtraction {
public static void main(String args[]) throws Exception {
if (args.length == 0) {
usage();
return;
}
FileInputStream is = new FileInputStream(args[0]);
SlideShow ppt = new SlideShow(is);
is.close();
//extract all sound files embedded in this presentation
SoundData[] sound = ppt.getSoundData();
for (int i = 0; i < sound.length; i++) {
String type = sound[i].getSoundType(); //*.wav
String name = sound[i].getSoundName(); //typically file name
byte[] data = sound[i].getData(); //raw bytes
//save the sound on disk
FileOutputStream out = new FileOutputStream(name + type);
out.write(data);
out.close();
}
//extract embedded OLE documents
Slide[] slide = ppt.getSlides();
for (int i = 0; i < slide.length; i++) {
Shape[] shape = slide[i].getShapes();
for (int j = 0; j < shape.length; j++) {
if (shape[j] instanceof OLEShape) {
OLEShape ole = (OLEShape) shape[j];
ObjectData data = ole.getObjectData();
String name = ole.getInstanceName();
if ("Worksheet".equals(name)) {
//read xls
HSSFWorkbook wb = new HSSFWorkbook(data.getData());
} else if ("Document".equals(name)) {
HWPFDocument doc = new HWPFDocument(data.getData());
//read the word document
Range r = doc.getRange();
for(int k = 0; k < r.numParagraphs(); k++) {
Paragraph p = r.getParagraph(k);
System.out.println(p.text());
}
//save on disk
FileOutputStream out = new FileOutputStream(name + "-("+(j)+").doc");
doc.write(out);
out.close();
} else {
FileOutputStream out = new FileOutputStream(ole.getProgID() + "-"+(j+1)+".dat");
InputStream dis = data.getData();
byte[] chunk = new byte[2048];
int count;
while ((count = dis.read(chunk)) >= 0) {
out.write(chunk,0,count);
}
is.close();
out.close();
}
}
}
}
//Pictures
for (int i = 0; i < slide.length; i++) {
Shape[] shape = slide[i].getShapes();
for (int j = 0; j < shape.length; j++) {
if (shape[j] instanceof Picture) {
Picture p = (Picture) shape[j];
PictureData data = p.getPictureData();
String name = p.getPictureName();
int type = data.getType();
String ext;
switch (type) {
case Picture.JPEG:
ext = ".jpg";
break;
case Picture.PNG:
ext = ".png";
break;
case Picture.WMF:
ext = ".wmf";
break;
case Picture.EMF:
ext = ".emf";
break;
case Picture.PICT:
ext = ".pict";
break;
case Picture.DIB:
ext = ".dib";
break;
default:
continue;
}
FileOutputStream out = new FileOutputStream("pict-" + j + ext);
out.write(data.getData());
out.close();
}
}
}
}
private static void usage(){
System.out.println("Usage: DataExtraction ppt");
}
}