Examples with POIFSFileSystem org.apache.poi.poifs.filesystem.POIFSFileSystem used on opensource projects

Example 16 with POIFSFileSystem

use of org.apache.poi.poifs.filesystem.POIFSFileSystem in project poi by apache.

the class TestReWrite method assertWritesOutTheSame.

public void assertWritesOutTheSame(HSLFSlideShowImpl hss, POIFSFileSystem pfs) throws Exception {
    // Write out to a byte array, and to a temp file
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    hss.write(baos);
    final File file = TempFile.createTempFile("TestHSLF", ".ppt");
    final File file2 = TempFile.createTempFile("TestHSLF", ".ppt");
    hss.write(file);
    hss.write(file2);
    // Build an input stream of it, and read back as a POIFS from the stream
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    POIFSFileSystem npfS = new POIFSFileSystem(bais);
    // And the same on the temp file
    POIFSFileSystem npfF = new POIFSFileSystem(file);
    // And another where we do an in-place write
    POIFSFileSystem npfRF = new POIFSFileSystem(file2, false);
    HSLFSlideShowImpl hssRF = new HSLFSlideShowImpl(npfRF);
    hssRF.write();
    hssRF.close();
    npfRF = new POIFSFileSystem(file2);
    // Check all of them in turn
    for (POIFSFileSystem npf : new POIFSFileSystem[] { npfS, npfF, npfRF }) {
        // Check that the "PowerPoint Document" sections have the same size
        DocumentEntry oProps = (DocumentEntry) pfs.getRoot().getEntry(HSLFSlideShow.POWERPOINT_DOCUMENT);
        DocumentEntry nProps = (DocumentEntry) npf.getRoot().getEntry(HSLFSlideShow.POWERPOINT_DOCUMENT);
        assertEquals(oProps.getSize(), nProps.getSize());
        // Check that they contain the same data
        byte[] _oData = new byte[oProps.getSize()];
        byte[] _nData = new byte[nProps.getSize()];
        pfs.createDocumentInputStream(HSLFSlideShow.POWERPOINT_DOCUMENT).read(_oData);
        npf.createDocumentInputStream(HSLFSlideShow.POWERPOINT_DOCUMENT).read(_nData);
        for (int i = 0; i < _oData.length; i++) {
            //System.out.println(i + "\t" + Integer.toHexString(i));
            assertEquals(_oData[i], _nData[i]);
        }
        npf.close();
    }
}

Example 17 with POIFSFileSystem

use of org.apache.poi.poifs.filesystem.POIFSFileSystem in project poi by apache.

the class TestReWriteSanity method setUp.

@Before
public void setUp() throws Exception {
    POIDataSamples slTests = POIDataSamples.getSlideShowInstance();
    pfs = new POIFSFileSystem(slTests.openResourceAsStream("basic_test_ppt_file.ppt"));
    ss = new HSLFSlideShowImpl(pfs);
}

Example 18 with POIFSFileSystem

use of org.apache.poi.poifs.filesystem.POIFSFileSystem in project poi by apache.

the class TestReWrite method assertSlideShowWritesOutTheSame.

public void assertSlideShowWritesOutTheSame(HSLFSlideShowImpl hss, POIFSFileSystem pfs) throws IOException {
    // Create a slideshow covering it
    @SuppressWarnings("resource") HSLFSlideShow ss = new HSLFSlideShow(hss);
    ss.getSlides();
    ss.getNotes();
    // Now write out to a byte array
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    hss.write(baos);
    // Build an input stream of it
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    // Use POIFS to query that lot
    POIFSFileSystem npfs = new POIFSFileSystem(bais);
    // Check that the "PowerPoint Document" sections have the same size
    DocumentEntry oProps = (DocumentEntry) pfs.getRoot().getEntry(HSLFSlideShow.POWERPOINT_DOCUMENT);
    DocumentEntry nProps = (DocumentEntry) npfs.getRoot().getEntry(HSLFSlideShow.POWERPOINT_DOCUMENT);
    assertEquals(oProps.getSize(), nProps.getSize());
    // Check that they contain the same data
    byte[] _oData = new byte[oProps.getSize()];
    byte[] _nData = new byte[nProps.getSize()];
    pfs.createDocumentInputStream(HSLFSlideShow.POWERPOINT_DOCUMENT).read(_oData);
    npfs.createDocumentInputStream(HSLFSlideShow.POWERPOINT_DOCUMENT).read(_nData);
    for (int i = 0; i < _oData.length; i++) {
        if (_oData[i] != _nData[i])
            System.out.println(i + "\t" + Integer.toHexString(i));
        assertEquals(_oData[i], _nData[i]);
    }
    npfs.close();
}

Example 19 with POIFSFileSystem

use of org.apache.poi.poifs.filesystem.POIFSFileSystem in project poi by apache.

the class TestReWrite method testWithMacroStreams.

@Test
public void testWithMacroStreams() throws IOException {
    // Check that they're apparently the same
    assertSlideShowWritesOutTheSame(hssC, pfsC);
    // Currently has a Macros stream
    assertNotNull(pfsC.getRoot().getEntry("Macros"));
    // Write out normally, will loose the macro stream
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    hssC.write(baos);
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    POIFSFileSystem pfsNew = new POIFSFileSystem(bais);
    assertFalse(pfsNew.getRoot().hasEntry("Macros"));
    pfsNew.close();
    // But if we write out with nodes preserved, will be there
    baos.reset();
    hssC.write(baos, true);
    bais = new ByteArrayInputStream(baos.toByteArray());
    pfsNew = new POIFSFileSystem(bais);
    assertTrue(pfsNew.getRoot().hasEntry("Macros"));
    pfsNew.close();
}

Example 20 with POIFSFileSystem

use of org.apache.poi.poifs.filesystem.POIFSFileSystem in project poi by apache.

the class TestExtractor method testExtractFromEmbeded.

@Test
public void testExtractFromEmbeded() throws IOException {
    InputStream is = POIDataSamples.getSpreadSheetInstance().openResourceAsStream("excel_with_embeded.xls");
    POIFSFileSystem fs = new POIFSFileSystem(is);
    DirectoryNode root = fs.getRoot();
    PowerPointExtractor ppe1 = assertExtractFromEmbedded(root, "MBD0000A3B6", "Sample PowerPoint file\nThis is the 1st file\nNot much too it\n");
    PowerPointExtractor ppe2 = assertExtractFromEmbedded(root, "MBD0000A3B3", "Sample PowerPoint file\nThis is the 2nd file\nNot much too it either\n");
    ppe2.close();
    ppe1.close();
    fs.close();
}