AOO410/main/odk/examples/DevelopersGuide/Forms/URLHelper.java

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import java.io.File;
import java.net.MalformedURLException;

public class URLHelper
{
    /**
     * Because the office need URLs for loading/saving documents
     * we must convert used system pathes.
     * And java use another notation for file URLs ... correct it.
     *
     * @param aSystemPath
     *          represent the file in system notation
     *
     * @return [String]
     *          a file url which represent the given system path
     */
    @SuppressWarnings("deprecation")
    public static String getFileURLFromSystemPath( File aSystemPath )
    {
        String sFileURL = null;
        try
        {
            sFileURL = aSystemPath.toURL().toString();
        }
        catch( MalformedURLException exWrong )
        {
            sFileURL = null;
        }

        // problem of java: file URL's are coded with 1 slash instead of 2 or 3 ones!
        // => correct this problem first, otherwise office can't use these URL's
        if(
            (sFileURL                       != null ) &&
            (sFileURL.startsWith("file:/")  == true ) &&
            (sFileURL.startsWith("file://") == false)
          )
        {
            StringBuffer sWorkBuffer = new StringBuffer(sFileURL);
            sWorkBuffer.insert(6,"//");
            sFileURL = sWorkBuffer.toString();
        }

        return sFileURL;
    }
}