Metacat

                    // xmldoc = new DocumentImpl(dbconn, packageDocid);

                    //  thus use the following to get the doc info only

                    //  xmldoc = new DocumentImpl(dbconn);

                    if (xmldoc == null)

                    {

                       MetaCatUtil.debugMessage("Document was null for: "

     *

     * @param dataPackageDocid, the string in docId field of xml_relation table

     */

    {

        Vector docIdList = new Vector();//return value

        String xml = null;

        // Check the parameter

        try {

            //initial a documentImpl object

            //transfer to documentImpl object to string

            xml = packageDocument.toString();

    /**

     * put a data packadge into a zip output stream

     *

     * @param out, a servletoutput stream which the zip output stream will be

     *            put

     * @param user, the username of the user

                throw e;

            }

            //checking if the user has the permission to read the documents

            if (DocumentImpl.hasReadPermission(user, groups, docImpls

                    .getDocID())) {