Examples with HSLFObjectData org.apache.poi.hslf.usermodel.HSLFObjectData used on opensource projects

Example 1 with HSLFObjectData

use of org.apache.poi.hslf.usermodel.HSLFObjectData in project poi by apache.

the class DataExtraction method main.

public static void main(String[] args) throws Exception {
    if (args.length == 0) {
        usage();
        return;
    }
    FileInputStream is = new FileInputStream(args[0]);
    HSLFSlideShow ppt = new HSLFSlideShow(is);
    is.close();
    //extract all sound files embedded in this presentation
    HSLFSoundData[] sound = ppt.getSoundData();
    for (int i = 0; i < sound.length; i++) {
        //*.wav
        String type = sound[i].getSoundType();
        //typically file name
        String name = sound[i].getSoundName();
        //raw bytes
        byte[] data = sound[i].getData();
        //save the sound  on disk
        FileOutputStream out = new FileOutputStream(name + type);
        out.write(data);
        out.close();
    }
    int oleIdx = -1, picIdx = -1;
    for (HSLFSlide slide : ppt.getSlides()) {
        //extract embedded OLE documents
        for (HSLFShape shape : slide.getShapes()) {
            if (shape instanceof OLEShape) {
                oleIdx++;
                OLEShape ole = (OLEShape) shape;
                HSLFObjectData data = ole.getObjectData();
                String name = ole.getInstanceName();
                if ("Worksheet".equals(name)) {
                    //read xls
                    @SuppressWarnings({ "unused", "resource" }) 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 + "-(" + (oleIdx) + ").doc");
                    doc.write(out);
                    out.close();
                    doc.close();
                } else {
                    FileOutputStream out = new FileOutputStream(ole.getProgID() + "-" + (oleIdx + 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();
                }
            } else //Pictures
            if (shape instanceof HSLFPictureShape) {
                picIdx++;
                HSLFPictureShape p = (HSLFPictureShape) shape;
                HSLFPictureData data = p.getPictureData();
                String ext = data.getType().extension;
                FileOutputStream out = new FileOutputStream("pict-" + picIdx + ext);
                out.write(data.getData());
                out.close();
            }
        }
    }
    ppt.close();
}

Example 2 with HSLFObjectData

use of org.apache.poi.hslf.usermodel.HSLFObjectData in project poi by apache.

the class TestOleEmbedding method testOleEmbedding2003.

/**
     * Tests support for OLE objects.
     *
     * @throws Exception if an error occurs.
     */
@Test
public void testOleEmbedding2003() throws IOException {
    HSLFSlideShowImpl slideShow = new HSLFSlideShowImpl(_slTests.openResourceAsStream("ole2-embedding-2003.ppt"));
    // Placeholder EMFs for clients that don't support the OLE components.
    List<HSLFPictureData> pictures = slideShow.getPictureData();
    assertEquals("Should be two pictures", 2, pictures.size());
    long[] checkSums = { 0xD37A4204l, 0x26A62F68l, 0x82853169l, 0xE0E45D2Bl };
    int checkId = 0;
    // check for checksum to be uptodate
    for (HSLFPictureData pd : pictures) {
        long checkEMF = IOUtils.calculateChecksum(pd.getData());
        assertEquals(checkSums[checkId++], checkEMF);
    }
    // Actual embedded objects.
    HSLFObjectData[] objects = slideShow.getEmbeddedObjects();
    assertEquals("Should be two objects", 2, objects.length);
    for (HSLFObjectData od : objects) {
        long checkEMF = IOUtils.calculateChecksum(od.getData());
        assertEquals(checkSums[checkId++], checkEMF);
    }
    slideShow.close();
}

Example 3 with HSLFObjectData

use of org.apache.poi.hslf.usermodel.HSLFObjectData in project poi by apache.

the class OLEShape method getObjectData.

/**
     * Returns unique identifier for the OLE object.
     *
     * @return the unique identifier for the OLE object
     */
@SuppressWarnings("resource")
public HSLFObjectData getObjectData() {
    HSLFSlideShow ppt = getSheet().getSlideShow();
    HSLFObjectData[] ole = ppt.getEmbeddedObjects();
    //persist reference
    ExEmbed exEmbed = getExEmbed();
    HSLFObjectData data = null;
    if (exEmbed != null) {
        int ref = exEmbed.getExOleObjAtom().getObjStgDataRef();
        for (int i = 0; i < ole.length; i++) {
            if (ole[i].getExOleObjStg().getPersistId() == ref) {
                data = ole[i];
            }
        }
    }
    if (data == null) {
        LOG.log(POILogger.WARN, "OLE data not found");
    }
    return data;
}

Example 4 with HSLFObjectData

use of org.apache.poi.hslf.usermodel.HSLFObjectData in project poi by apache.

the class TestOleEmbedding method testOLEShape.

@Test
public void testOLEShape() throws IOException {
    HSLFSlideShow ppt = new HSLFSlideShow(_slTests.openResourceAsStream("ole2-embedding-2003.ppt"));
    HSLFSlide slide = ppt.getSlides().get(0);
    int cnt = 0;
    for (HSLFShape sh : slide.getShapes()) {
        if (sh instanceof OLEShape) {
            cnt++;
            OLEShape ole = (OLEShape) sh;
            HSLFObjectData data = ole.getObjectData();
            if ("Worksheet".equals(ole.getInstanceName())) {
                //Voila! we created a workbook from the embedded OLE data
                HSSFWorkbook wb = new HSSFWorkbook(data.getData());
                HSSFSheet sheet = wb.getSheetAt(0);
                //verify we can access the xls data
                assertEquals(1, sheet.getRow(0).getCell(0).getNumericCellValue(), 0);
                assertEquals(1, sheet.getRow(1).getCell(0).getNumericCellValue(), 0);
                assertEquals(2, sheet.getRow(2).getCell(0).getNumericCellValue(), 0);
                assertEquals(3, sheet.getRow(3).getCell(0).getNumericCellValue(), 0);
                assertEquals(8, sheet.getRow(5).getCell(0).getNumericCellValue(), 0);
                wb.close();
            } else if ("Document".equals(ole.getInstanceName())) {
                //creating a HWPF document
                HWPFDocument doc = new HWPFDocument(data.getData());
                String txt = doc.getRange().getParagraph(0).text();
                assertEquals("OLE embedding is thoroughly unremarkable.\r", txt);
                doc.close();
            }
        }
    }
    assertEquals("Expected 2 OLE shapes", 2, cnt);
    ppt.close();
}

Example 5 with HSLFObjectData

use of org.apache.poi.hslf.usermodel.HSLFObjectData in project tika by apache.

the class HSLFExtractor method handleSlideEmbeddedResources.

private void handleSlideEmbeddedResources(HSLFSlide slide, XHTMLContentHandler xhtml) throws TikaException, SAXException, IOException {
    List<HSLFShape> shapes;
    try {
        shapes = slide.getShapes();
    } catch (NullPointerException e) {
        // Sometimes HSLF hits problems
        // Please open POI bugs for any you come across!
        EmbeddedDocumentUtil.recordEmbeddedStreamException(e, parentMetadata);
        return;
    }
    for (HSLFShape shape : shapes) {
        if (shape instanceof OLEShape) {
            OLEShape oleShape = (OLEShape) shape;
            HSLFObjectData data = null;
            try {
                data = oleShape.getObjectData();
            } catch (NullPointerException e) {
                /* getObjectData throws NPE some times. */
                EmbeddedDocumentUtil.recordEmbeddedStreamException(e, parentMetadata);
                continue;
            }
            if (data != null) {
                String objID = Integer.toString(oleShape.getObjectID());
                // Embedded Object: add a <div
                // class="embedded" id="X"/> so consumer can see where
                // in the main text each embedded document
                // occurred:
                AttributesImpl attributes = new AttributesImpl();
                attributes.addAttribute("", "class", "class", "CDATA", "embedded");
                attributes.addAttribute("", "id", "id", "CDATA", objID);
                xhtml.startElement("div", attributes);
                xhtml.endElement("div");
                InputStream dataStream = null;
                try {
                    dataStream = data.getData();
                } catch (Exception e) {
                    EmbeddedDocumentUtil.recordEmbeddedStreamException(e, parentMetadata);
                    continue;
                }
                try (TikaInputStream stream = TikaInputStream.get(dataStream)) {
                    String mediaType = null;
                    if ("Excel.Chart.8".equals(oleShape.getProgID())) {
                        mediaType = "application/vnd.ms-excel";
                    } else {
                        MediaType mt = getTikaConfig().getDetector().detect(stream, new Metadata());
                        mediaType = mt.toString();
                    }
                    if (mediaType.equals("application/x-tika-msoffice-embedded; format=comp_obj")) {
                        try (NPOIFSFileSystem npoifs = new NPOIFSFileSystem(new CloseShieldInputStream(stream))) {
                            handleEmbeddedOfficeDoc(npoifs.getRoot(), objID, xhtml);
                        }
                    } else {
                        handleEmbeddedResource(stream, objID, objID, mediaType, xhtml, false);
                    }
                } catch (IOException e) {
                    EmbeddedDocumentUtil.recordEmbeddedStreamException(e, parentMetadata);
                }
            }
        }
    }
}