public ESMappingAPIImpl() {
if (mapper == null) {
synchronized (this.getClass().getName()) {
if (mapper == null) {
mapper = new ObjectMapper();
ThreadSafeSimpleDateFormat df = new ThreadSafeSimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
mapper.setDateFormat(df);
}
}
}
}