Method format

src/org/apache/pig/impl/util/TupleFormat.java:46–79

Default implementation of format of tuple (each filed is delimited by tab) @param tuple @return Default format of Tuple

(Tuple tuple)

     * @return Default format of Tuple
     */
    @SuppressWarnings("unchecked")
    public static String format(Tuple tuple) {
        StringBuilder sb = new StringBuilder();
        sb.append('(');
        for (int i = 0; i < tuple.size(); ++i) {
            try {
                Object d = tuple.get(i);
                if (d != null) {
                    if (d instanceof Map) {
                        sb.append(DataType.mapToString((Map<String, Object>) d));
                    } else if (d instanceof Tuple) {
                        Tuple t = (Tuple) d;
                        sb.append(TupleFormat.format(t));
                    } else if (d instanceof DataBag){
                        DataBag bag=(DataBag)d;
                        sb.append(BagFormat.format(bag));
                    }
                    else {
                        sb.append(d.toString());
                    }
                } else {
                    sb.append("");
                }
                if (i != tuple.size() - 1)
                    sb.append(",");
            } catch (ExecException e) {
                e.printStackTrace();
                mLog.warn("Exception when format tuple", e);
            }

        }
        sb.append(')');
        return sb.toString();
    }
}