content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.camel.component.kafka;
  
  import java.util.List;
  import java.util.Map;
  
  import org.apache.camel.health.HealthCheckResultBuilder;
  import org.apache.camel.impl.health.AbstractHealthCheck;
  
  /**
   * Kafka consumer readiness health-check
   */
  public class KafkaConsumerHealthCheck extends AbstractHealthCheck {
  
      private final KafkaConsumer kafkaConsumer;
      private final String routeId;
  
      public KafkaConsumerHealthCheck(KafkaConsumer kafkaConsumer, String routeId) {
          super("camel", "consumer:kafka-" + routeId);
          this.kafkaConsumer = kafkaConsumer;
          this.routeId = routeId;
      }
  
      @Override
      protected void doCall(HealthCheckResultBuilder builder, Map<String, Object> options) {
          List<TaskHealthState> healthStates = kafkaConsumer.healthStates();
  
          for (TaskHealthState healthState : healthStates) {
              if (!healthState.isReady()) {
                  builder.down();
  
                  final String msg = healthState.buildStateMessage();
  
                  builder.message(msg);
  
                  // was this caused by consumer not able to connect then this is stored in last error
                  builder.error(healthState.getLastError());
  
                  KafkaConfiguration cfg = kafkaConsumer.getEndpoint().getConfiguration();
  
                  if (healthState.getBootstrapServers() != null) {
                      builder.detail("bootstrap.servers", healthState.getBootstrapServers());
                  }
                  if (healthState.getClientId() != null) {
                      builder.detail("client.id", healthState.getClientId());
                  }
  
                  String gid = healthState.getGroupId();
                  if (gid != null) {
                      builder.detail("group.id", gid);
                  }
  
                  if (routeId != null) {
                      // camel route id
                      builder.detail("route.id", routeId);
                  }
                  builder.detail("topic", cfg.getTopic());
  
                  return; // break on first DOWN
              }
          }
          builder.up();
      }
  }
  