}

    private static class Description
        extends LogType.Description
    {
        public Description( LogType.Basic logtype, String[] attributeNames )
        {
            super( logtype, attributeNames );
            logtype.setDescription( this );
        }

        public LogEvent.Factory newFactory( Reader reader, String logSource )
            throws IOException
        {
            return new Factory( this, reader, logSource );
        }

        public String getDefaultSpecificGroups()
        {
            return "  <group id=\"warn\">\n"
                + "    <description>WARN events</description>\n"
                + "    <condition>\n"
                + "      <match attribute=\"level\" type=\"equals\">WARN</match>\n"
                + "    </condition>\n"
                + "    <report publisher=\"file\"/>\n"
                + "    <plugin type=\"sampling\">\n"
                + "      <param name=\"attributes\">logger</param>\n"
                + "    </plugin>\n"
                + "  </group>\n"
                + "\n"
                + "  <group id=\"error\">\n"
                + "    <description>ERROR events</description>\n"
                + "    <condition>\n"
                + "      <match attribute=\"level\" type=\"equals\">ERROR</match>\n"
                + "    </condition>\n"
                + "    <report publisher=\"file\"/>\n"
                + "    <plugin type=\"sampling\">\n"
                + "      <param name=\"attributes\">logger</param>\n"
                + "    </plugin>\n"
                + "  </group>";
        }

        public String getDefaultSamplingAttributes()
        {
            return "level,logger";
        }
    }

    private static class Factory
        extends LogEvent.Factory
    {
        private final LineNumberReader reader;

        private String curLine;

        public Factory( Description description, Reader reader, String logSource )
            throws FileNotFoundException
        {
            super( description, logSource );
            this.reader = new LineNumberReader( reader );
        }

    }

    public void publish( LogDistillation.Group group, LogDistiller.Report report )
        throws IOException, PublishException
    {
        // prepare the data for the entry
        LogDistillation logdistillation = group.getLogdistillation();
        String content = logdistillation.getContent();
        String subject =
            "[logdistiller:" + logdistillation.getDefinition().getOutput().getId() + "]"
                + ( ( content == null ) ? "" : ( " " + content ) ) + " report for group "
                + group.getDefinition().getId() + ": " + group.getEventCount() + " logevents";
        ReportFormat format = ReportFormats.getReportFormat( report.getFormat() );
        StringWriter sw = new StringWriter();
        format.report( group, sw );
        String body = sw.toString();