Re: Setting a Linked Property?

[Thomas P Laford]

I answered half of my own question.  For Office 2003 and prior files, the 
following code works fine:

        // Open the file
        //
        InputStream fileStream = new FileInputStream(input);
        POIFSFileSystem poifs = new POIFSFileSystem(fileStream);
        fileStream.close();
        DirectoryEntry dir = poifs.getRoot();
 
        // Retrieve the custom properties from the file
        //
        DocumentSummaryInformation dsi = null;
        DocumentEntry dsiEntry = (DocumentEntry) 
dir.getEntry(DocumentSummaryInformation.DEFAULT_STREAM_NAME);
        DocumentInputStream dis = new DocumentInputStream(dsiEntry);
        PropertySet ps = new PropertySet(dis);
        dis.close();
        dsi = new DocumentSummaryInformation(ps);

        CustomProperties properties = dsi.getCustomProperties();
        if (properties == null)
            properties = new CustomProperties();

        // Clear all the custom properties
        //
        Set names = properties.keySet();
        java.util.Iterator it = names.iterator();
        while (it.hasNext())
        {
            String name = (String)it.next();
            Object value = properties.get(name);
            if (value instanceof String)
            {
                properties.put(name, " ");
            }
            else
            {
                properties.put(name, 0);
            }
        }

        // Save the file with it's updated custom properties
        //
        dsi.setCustomProperties(properties);
        dsi.write(poifs.getRoot(), 
DocumentSummaryInformation.DEFAULT_STREAM_NAME);
        OutputStream out = new FileOutputStream(input);
        poifs.writeFilesystem(out);
        out.close();