public void transform(Object obj) {
if (obj instanceof SenseEventBean) {
SenseEventBean senseEventBean = (SenseEventBean) obj;
JSONContext context = getContext();
context.writeOpenObject();
context.writeName("feed_id");
context.write("" + senseEventBean.getFeedId());
context.writeComma();
context.writeName("value");
context.write("\"" + senseEventBean.getValue() + "\"");
context.writeCloseObject();