import kafka.utils.CoreUtils; //导入依赖的package包/类
/**
 * Stop the broker.
 */
public void stop() {
    log.debug("Shutting down embedded Kafka broker at {} (with ZK ensemble at {}) ...",
        brokerList(), zookeeperConnect());
    kafka.shutdown();
    kafka.awaitShutdown();
    log.debug("Removing logs.dir at {} ...", logDir);
    final List<String> logDirs = Collections.singletonList(logDir.getAbsolutePath());
    CoreUtils.delete(scala.collection.JavaConversions.asScalaBuffer(logDirs).seq());
    tmpFolder.delete();
    log.debug("Shutdown of embedded Kafka broker at {} completed (with ZK ensemble at {}) ...",
        brokerList(), zookeeperConnect());
}
 

import kafka.utils.CoreUtils; //导入依赖的package包/类
/**
 * Stop the broker.
 */
public void stop() {
  log.debug("Shutting down embedded Kafka broker at {} (with ZK ensemble at {}) ...",
      brokerList(), zookeeperConnect());
  kafka.shutdown();
  kafka.awaitShutdown();
  log.debug("Removing logs.dir at {} ...", logDir);
  final List<String> logDirs = Collections.singletonList(logDir.getAbsolutePath());
  CoreUtils.delete(scala.collection.JavaConversions.asScalaBuffer(logDirs).seq());
  tmpFolder.delete();
  log.debug("Shutdown of embedded Kafka broker at {} completed (with ZK ensemble at {}) ...",
      brokerList(), zookeeperConnect());
}
 

import kafka.utils.CoreUtils; //导入依赖的package包/类
@Test
public void savesAsManyMetricsToFileAsHaveBeenSubmittedBySingleNodeCluster() throws IOException {
  // Given
  Runtime serverRuntime = Runtime.getRuntime();
  EmbeddedKafkaCluster cluster = new EmbeddedKafkaCluster();
  int numBrokers = 1;
  cluster.startCluster(numBrokers);
  KafkaServer broker = cluster.getBroker(0);
  Properties brokerConfiguration = defaultBrokerConfiguration(broker, cluster.zookeeperConnectString());
  brokerConfiguration.setProperty(KafkaSupportConfig.CONFLUENT_SUPPORT_METRICS_ENDPOINT_INSECURE_ENABLE_CONFIG, "false");
  brokerConfiguration.setProperty(KafkaSupportConfig.CONFLUENT_SUPPORT_METRICS_ENDPOINT_SECURE_ENABLE_CONFIG, "false");
  brokerConfiguration.setProperty(KafkaSupportConfig.CONFLUENT_SUPPORT_METRICS_TOPIC_CONFIG,
      "test_metrics");
  String topic = brokerConfiguration.getProperty(KafkaSupportConfig.CONFLUENT_SUPPORT_METRICS_TOPIC_CONFIG);
  int timeoutMs = 10 * 1000;
  KafkaMetricsToFile kafkaMetricsToFile = new KafkaMetricsToFile(cluster.zookeeperConnectString(), timeoutMs);

  // Sent metrics to the topic
  int numMetricSubmissions = 10;
  KafkaSupportConfig kafkaSupportConfig = new KafkaSupportConfig(brokerConfiguration);
  MetricsReporter reporter = new MetricsReporter(broker, kafkaSupportConfig, serverRuntime);
  reporter.init();
  for (int i = 0; i < numMetricSubmissions; i++) {
    reporter.submitMetrics();
  }

  // When/Then
  String outputFile = "testFile.zip";
  assertThat(kafkaMetricsToFile.saveMetricsToFile(topic, outputFile)).isEqualTo(numMetricSubmissions);

  // Cleanup
  kafkaMetricsToFile.shutdown();
  List<String> outputFiles = Arrays.asList(outputFile);
  CoreUtils.delete(scala.collection.JavaConversions.asScalaBuffer(outputFiles).seq());
  cluster.stopCluster();
}
 

import kafka.utils.CoreUtils; //导入依赖的package包/类
private void stopBroker(int brokerId) {
  if (brokersById.containsKey(brokerId)) {
    KafkaServer broker = brokersById.get(brokerId);
    broker.shutdown();
    broker.awaitShutdown();
    CoreUtils.delete(broker.config().logDirs());
    brokersById.remove(brokerId);
  }
}