MissingRequiredPropertyException: Missing required property 'BulkRequest.operations' Elasticsearch - elasticsearch

Question

I am facing the MissingRequiredPropertyException: Missing required property 'BulkRequest.operations' exception. I know what it is. But I don't know how to resolve it.
if (Some Condition) {
// Keep adding the optimised objects to bulk requests so can write it back later in one call.
bulkRequestBuilder.operations(op -> op.index(idx -> idx
.id(esKey)
.document(JSON OBJECT)));
} else {
log.info("I am not building any bulk request.", esKey);
}
Later on, I want to write this bulk request to Elastic search. While writing, I need to check if the bulk request has any operations inside it. So I am doing the below thing.
BulkRequest bulkRequest = bulkRequestBuilder.build();
if (!bulkRequest.operations().isEmpty()) {
BulkResponse bulkResponse = repo.saveToIndexByBulkRequest(bulkRequest);
}
In the above code, .build() is throwing me the MissingRequiredPropertyException. When the bulk Request doesn't have any operations in it, it will throw that exception.
Before building, how can I check if it has any operations inside it?
Let me know if you need more info.

Answer 1

For this particular scenario, you can use exception handling and resolve this like:
try {
BulkRequest bulkRequest = bulkRequestBuilder.build();
if (!bulkRequest.operations().isEmpty()) {
BulkResponse bulkResponse = repo.save(bulkRequest);
if (bulkResponse.errors()) {
throw new CustomException(CustomMessage);
}
}
} catch (MissingRequiredPropertyException exception) {
// either throw exception or continue based on requirement.
log.error("Bulk RequestBuilder has no operations in it.");
}