Metacat

import java.io.BufferedReader;

    public Reader query(Reader xmlQuery) throws MetacatInaccessibleException,

                                                IOException

        Reader reader = null;

        String query = null;

        try

        {

          query = readerToString(xmlQuery);

        }

        catch (IOException ioE)

        {

          throw ioE;

        }

        //set up properties

        Properties prop = new Properties();

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

        prop.put("qformat", "xml");

        prop.put("query", query);

        InputStream response = null;

        try {

            response = sendData(prop);

        } catch (Exception e) {

            throw new MetacatInaccessibleException(e.getMessage());

        }

        reader = new InputStreamReader(response);

        return reader;

    /**

     * Utility method to convert a reader to a String.

     *

     * @param reader the Reader to be converted

     * @return a String representation fo the data read

     */

    private String readerToString(Reader reader) throws IOException

    {

        String response = null;

        try {

            StringWriter sw = new StringWriter();

            int len;

            char[] characters = new char[512];

            while ((len = reader.read(characters, 0, 512)) != -1) {

                sw.write(characters, 0, len);

            }

            response = sw.toString();

            sw.close();

            reader.close();

        } catch (IOException e) {

            throw e;

        }

        return response;

    }