Examples with KafkaMetadataService com.hortonworks.streamline.streams.cluster.service.metadata.KafkaMetadataService used on opensource projects

Example 1 with KafkaMetadataService

use of com.hortonworks.streamline.streams.cluster.service.metadata.KafkaMetadataService in project streamline by hortonworks.

the class AbstractKafkaBundleHintProvider method getHintsOnCluster.

@Override
public Map<String, Object> getHintsOnCluster(Cluster cluster, SecurityContext securityContext, Subject subject) {
    Map<String, Object> hintClusterMap = new HashMap<>();
    try (KafkaMetadataService kms = KafkaMetadataService.newInstance(environmentService, cluster.getId(), securityContext)) {
        KafkaTopics topics = kms.getTopicsFromZk();
        hintClusterMap.put(FIELD_NAME_TOPIC, topics.list());
        fillZookeeperHints(cluster, hintClusterMap);
        final Map<KafkaBrokerListeners.Protocol, List<String>> protocolToHostsWithPort = kms.getKafkaBrokerListeners().getProtocolToHostsWithPort();
        hintClusterMap.put(FIELD_NAME_BOOTSTRAP_SERVERS, mapValuesJoiner(protocolToHostsWithPort, ","));
        hintClusterMap.put(FIELD_NAME_SECURITY_PROTOCOL, protocolToHostsWithPort.keySet());
        hintClusterMap.put(FIELD_NAME_KAFKA_SERVICE_NAME, kms.getKafkaServiceName());
    } catch (ServiceNotFoundException e) {
        // we access it from mapping information so shouldn't be here
        throw new IllegalStateException("Service " + Constants.Kafka.SERVICE_NAME + " in cluster " + cluster.getName() + " not found but mapping information exists.");
    } catch (ServiceConfigurationNotFoundException e) {
    // there's KAFKA service but not enough configuration info.
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return hintClusterMap;
}