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.acme.observability.health.camel;
  
  import java.util.Map;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.camel.health.HealthCheckResultBuilder;
  import org.apache.camel.impl.health.AbstractHealthCheck;
  
  /**
   * A simple custom liveness check which utilizes the Camel Health API.
   *
   * The check status is recorded as DOWN on every 5th invocation.
   */
  public class CustomLivenessCheck extends AbstractHealthCheck {
  
      AtomicInteger hitCount = new AtomicInteger();
  
      public CustomLivenessCheck() {
          super("custom-liveness-check");
      }
  
      @Override
      protected void doCall(HealthCheckResultBuilder builder, Map<String, Object> options) {
          int hits = hitCount.incrementAndGet();
  
          // Flag the check as DOWN on every 5th invocation (but not on Kubernetes), else it is UP
          if (hits % 5 == 0 && System.getenv("KUBERNETES_PORT") == null) {
              builder.down();
          } else {
              builder.up();
          }
      }
  
      @Override
      public boolean isReadiness() {
          return false;
      }
  
      @Override
      public boolean isLiveness() {
          return true;
      }
  }
  