org.apache.poi.examples.hslf.DataExtraction Maven / Gradle / Ivy

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   this work for additional information regarding copyright ownership.
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   (the "License"); you may not use this file except in compliance with
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package org.apache.poi.examples.hslf;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.poi.hslf.usermodel.HSLFObjectData;
import org.apache.poi.hslf.usermodel.HSLFObjectShape;
import org.apache.poi.hslf.usermodel.HSLFPictureData;
import org.apache.poi.hslf.usermodel.HSLFPictureShape;
import org.apache.poi.hslf.usermodel.HSLFShape;
import org.apache.poi.hslf.usermodel.HSLFSlide;
import org.apache.poi.hslf.usermodel.HSLFSlideShow;
import org.apache.poi.hslf.usermodel.HSLFSoundData;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Paragraph;
import org.apache.poi.hwpf.usermodel.Range;
import org.apache.poi.util.IOUtils;

/**
 * Demonstrates how you can extract misc embedded data from a ppt file
 */
@SuppressWarnings({"java:S106","java:S4823"})
public final class DataExtraction {

    private DataExtraction() {}

    public static void main(String[] args) throws Exception {

        if (args.length == 0) {
            usage();
            return;
        }

        try (FileInputStream fis = new FileInputStream(args[0]);
            HSLFSlideShow ppt = new HSLFSlideShow(fis)) {

            //extract all sound files embedded in this presentation
            HSLFSoundData[] sound = ppt.getSoundData();
            for (HSLFSoundData aSound : sound) {
                handleSound(aSound);
            }

            int oleIdx = -1;
            int picIdx = -1;
            for (HSLFSlide slide : ppt.getSlides()) {
                //extract embedded OLE documents
                for (HSLFShape shape : slide.getShapes()) {
                    if (shape instanceof HSLFObjectShape) {
                        handleShape((HSLFObjectShape) shape, ++oleIdx);
                    } else if (shape instanceof HSLFPictureShape) {
                        handlePicture((HSLFPictureShape) shape, ++picIdx);
                    }
                }
            }
        }
    }

    private static void handleShape(HSLFObjectShape ole, int oleIdx) throws IOException {
        HSLFObjectData data = ole.getObjectData();
        String name = ole.getInstanceName();
        switch (name == null ? "" : name) {
            case "Worksheet":
                //read xls
                handleWorkbook(data, name, oleIdx);
                break;
            case "Document":
                //read the word document
                handleDocument(data, name, oleIdx);
                break;
            default:
                handleUnknown(data, ole.getProgId(), oleIdx);
                break;
        }

    }

    private static void handleWorkbook(HSLFObjectData data, String name, int oleIdx) throws IOException {
        try (InputStream is = data.getInputStream();
             HSSFWorkbook wb = new HSSFWorkbook(is);
             FileOutputStream out = new FileOutputStream(name + "-(" + (oleIdx) + ").xls")) {
            wb.write(out);
        }
    }

    private static void handleDocument(HSLFObjectData data, String name, int oleIdx) throws IOException {
        try (InputStream is = data.getInputStream();
             HWPFDocument doc = new HWPFDocument(is);
             FileOutputStream out = new FileOutputStream(name + "-(" + (oleIdx) + ").doc")) {
            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
            doc.write(out);
        }
    }

    private static void handleUnknown(HSLFObjectData data, String name, int oleIdx) throws IOException {
        try (InputStream is = data.getInputStream();
             FileOutputStream out = new FileOutputStream(name + "-" + (oleIdx + 1) + ".dat")) {
            IOUtils.copy(is, out);
        }
    }

    private static void handlePicture(HSLFPictureShape p, int picIdx) throws IOException {
        HSLFPictureData data = p.getPictureData();
        String ext = data.getType().extension;
        try (FileOutputStream out = new FileOutputStream("pict-" + picIdx + ext)) {
            out.write(data.getData());
        }
    }

    private static void handleSound(HSLFSoundData aSound) throws IOException {
        String type = aSound.getSoundType();  //*.wav
        String name = aSound.getSoundName();  //typically file name

        //save the sound  on disk
        try (FileOutputStream out = new FileOutputStream(name + type)) {
            out.write(aSound.getData());
        }
    }

    private static void usage(){
        System.out.println("Usage: DataExtraction  ppt");
    }
}