Examples with Selector org.apache.kafka.common.network.Selector used on opensource projects

Example 1 with Selector

use of org.apache.kafka.common.network.Selector in project apache-kafka-on-k8s by banzaicloud.

the class KafkaAdminClient method createInternal.

static KafkaAdminClient createInternal(AdminClientConfig config, TimeoutProcessorFactory timeoutProcessorFactory) {
    Metrics metrics = null;
    NetworkClient networkClient = null;
    Time time = Time.SYSTEM;
    String clientId = generateClientId(config);
    ChannelBuilder channelBuilder = null;
    Selector selector = null;
    ApiVersions apiVersions = new ApiVersions();
    LogContext logContext = createLogContext(clientId);
    try {
        // Since we only request node information, it's safe to pass true for allowAutoTopicCreation (and it
        // simplifies communication with older brokers)
        Metadata metadata = new Metadata(config.getLong(AdminClientConfig.RETRY_BACKOFF_MS_CONFIG), config.getLong(AdminClientConfig.METADATA_MAX_AGE_CONFIG), true);
        List<MetricsReporter> reporters = config.getConfiguredInstances(AdminClientConfig.METRIC_REPORTER_CLASSES_CONFIG, MetricsReporter.class);
        Map<String, String> metricTags = Collections.singletonMap("client-id", clientId);
        MetricConfig metricConfig = new MetricConfig().samples(config.getInt(AdminClientConfig.METRICS_NUM_SAMPLES_CONFIG)).timeWindow(config.getLong(AdminClientConfig.METRICS_SAMPLE_WINDOW_MS_CONFIG), TimeUnit.MILLISECONDS).recordLevel(Sensor.RecordingLevel.forName(config.getString(AdminClientConfig.METRICS_RECORDING_LEVEL_CONFIG))).tags(metricTags);
        reporters.add(new JmxReporter(JMX_PREFIX));
        metrics = new Metrics(metricConfig, reporters, time);
        String metricGrpPrefix = "admin-client";
        channelBuilder = ClientUtils.createChannelBuilder(config);
        selector = new Selector(config.getLong(AdminClientConfig.CONNECTIONS_MAX_IDLE_MS_CONFIG), metrics, time, metricGrpPrefix, channelBuilder, logContext);
        networkClient = new NetworkClient(selector, metadata, clientId, 1, config.getLong(AdminClientConfig.RECONNECT_BACKOFF_MS_CONFIG), config.getLong(AdminClientConfig.RECONNECT_BACKOFF_MAX_MS_CONFIG), config.getInt(AdminClientConfig.SEND_BUFFER_CONFIG), config.getInt(AdminClientConfig.RECEIVE_BUFFER_CONFIG), (int) TimeUnit.HOURS.toMillis(1), time, true, apiVersions, logContext);
        return new KafkaAdminClient(config, clientId, time, metadata, metrics, networkClient, timeoutProcessorFactory, logContext);
    } catch (Throwable exc) {
        closeQuietly(metrics, "Metrics");
        closeQuietly(networkClient, "NetworkClient");
        closeQuietly(selector, "Selector");
        closeQuietly(channelBuilder, "ChannelBuilder");
        throw new KafkaException("Failed create new KafkaAdminClient", exc);
    }
}