in flink-connector-opensearch/src/main/java/org/apache/flink/connector/opensearch/sink/OpensearchSinkBuilder.java [323:338]
public OpensearchSink<IN> build() {
checkNotNull(emitter);
checkNotNull(hosts);
NetworkClientConfig networkClientConfig = buildNetworkClientConfig();
BulkProcessorConfig bulkProcessorConfig = buildBulkProcessorConfig();
return new OpensearchSink<>(
hosts,
emitter,
deliveryGuarantee,
bulkProcessorConfig,
networkClientConfig,
restClientFactory,
failureHandler);
}