D-Net

	@Deprecated

	private void getFirstHarvestingDate(final String dsId,

			final CountDownLatch outerLatch,

			final Queue<Throwable> errors,

			final DatasourceInfo dsInfo) {

		Futures.addCallback(

				executor.submit(() -> mongoLoggerClient.firstHarvestDate(dsId)),

				new FutureCallback<String>() {

					@Override

					public void onSuccess(@Nullable final String firstHarvestDate) {

						dsInfo.setFirstHarvestDate(firstHarvestDate);

						outerLatch.countDown();

					}

					@Override

					public void onFailure(final Throwable e) {

						log.error(ExceptionUtils.getStackTrace(e));

						errors.offer(e);

						outerLatch.countDown();

					}

				}, executor);

	}