Metacat

    /**

     * return true of the given docid is registered, false if not

     * @param scope String  the scope to use to limit the docid query

     * @throws MetacatException when an error occurs

     */

    public boolean isRegistered(String docid) throws MetacatException {

        Vector resultVec = new Vector();

        //set up properties

        Properties prop = new Properties();

        prop.put("action", "isregistered");

        if(docid == null)

        {

          throw new MetacatException("<error>Cannot check if a null docid " +

            "is registered.</error>");

        }

        prop.put("docid", docid);

        String response = null;

        try {

            response = sendDataForString(prop, null, null, 0);

            // Check for an error condition

            if (response.indexOf("<error>") != -1) {

               throw new MetacatException(response);

            } else {

                Reader responseReader = new StringReader(response);

                StringBuffer sb = new StringBuffer();

                char[] c = new char[1024];

                int numread = responseReader.read(c, 0, 1024);

                while(numread != -1)

                {

                  sb.append(new String(c, 0, numread));

                  numread = responseReader.read(c, 0, 1024);

                }

                String responseStr = sb.toString();

                if(responseStr.indexOf("true") != -1)

                {

                  return true;

                }

                return false;

            }

        } catch (Exception e) {

            throw new MetacatException(e.getMessage());

        }

    }