CloudSearchService.java

	public void deleteTitlesFromCloudSearch(List<AmazonSearchDataFormat> amazonSearchRecords) {

		logger.debug("Deleting {} titles from CloudSearch", amazonSearchRecords.size());

		if (amazonSearchRecords.isEmpty()) return;

		try {

			postBatchToCloudSearch(cloudSearchTitlesEndpoint, amazonSearchRecords);

			for (AmazonSearchDataFormat amazonSearchDataFormat : amazonSearchRecords) {
				searchableContentMapper.removeDeleted(Integer.valueOf(amazonSearchDataFormat.getId()));
			}

			amazonCloudWatchAsyncClient.putMetricDataAsync(
					new PutMetricDataRequest()
							.withNamespace("Hoopla/Integration")
							.withMetricData(new MetricDatum()
									.withMetricName("CloudSearchTitles-DELETE-" + environment)
									.withValue((double) amazonSearchRecords.size())
							)
			);

		} catch (IOException e) {
			logger.error("Exception while trying to post a DELETE batch to CloudSearch", e);
		}

	}