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

Example 11 with DirectoryNode

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

the class LoadEmbedded method loadEmbedded.

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();
            }
        }
    }
}

Example 12 with DirectoryNode

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

the class HPSFFileHandler method hasPropertyStream.

private static boolean hasPropertyStream(POIFSFileSystem poifs, String streamName) throws IOException, MarkUnsupportedException {
    DirectoryNode root = poifs.getRoot();
    if (!root.hasEntry(streamName)) {
        return false;
    }
    DocumentInputStream dis = root.createDocumentInputStream(streamName);
    try {
        return PropertySet.isPropertySetStream(dis);
    } finally {
        dis.close();
        ;
    }
}

Example 13 with DirectoryNode

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

the class PPTXMLDump method readEntry.

private static byte[] readEntry(NPOIFSFileSystem fs, String entry) throws IOException {
    DirectoryNode dn = fs.getRoot();
    if (!dn.hasEntry(entry)) {
        return null;
    }
    InputStream is = dn.createDocumentInputStream(entry);
    try {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        IOUtils.copy(is, bos);
        return bos.toByteArray();
    } finally {
        is.close();
    }
}

Example 14 with DirectoryNode

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

the class HPBFDumper method dumpEscher.

/**
	 * Dump out the escher parts of the file.
	 * Escher -> EscherStm and EscherDelayStm
	 */
public void dumpEscher() throws IOException {
    DirectoryNode escherDir = (DirectoryNode) fs.getRoot().getEntry("Escher");
    dumpEscherStm(escherDir);
    dumpEscherDelayStm(escherDir);
}

Example 15 with DirectoryNode

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

the class HPBFPart method writeOut.

public void writeOut(DirectoryNode baseDir) throws IOException {
    String[] path = getPath();
    // Ensure that all parent directories exist
    DirectoryNode dir = baseDir;
    for (int i = 0; i < path.length - 1; i++) {
        try {
            dir = (DirectoryNode) dir.getEntry(path[i]);
        } catch (FileNotFoundException e) {
            dir.createDirectory(path[i]);
        }
    }
    // Update the byte array with the latest data
    generateData();
    // Write out
    ByteArrayInputStream bais = new ByteArrayInputStream(data);
    dir.createDocument(path[path.length - 1], bais);
}