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.cassandra.sidecar.lifecycle;
  
  import java.util.concurrent.TimeUnit;
  
  import org.apache.cassandra.distributed.api.IInstance;
  import org.apache.cassandra.sidecar.cluster.instance.InstanceMetadata;
  
  /**
   * Manages the lifecycle of JVM Dtest Cassandra instances.
   * This should be used for integration tests where Cassandra instances are started and stopped
   */
  public class InJvmDTestLifecycleProvider implements LifecycleProvider
  {
      private final Iterable<? extends IInstance> instances;
  
      public InJvmDTestLifecycleProvider(Iterable<? extends IInstance> instances)
      {
          this.instances = instances;
      }
  
      @Override
      public void start(InstanceMetadata instanceMetadata)
      {
          getInstance(instanceMetadata).startup();
      }
  
      @Override
      public void stop(InstanceMetadata instanceMetadata)
      {
          try
          {
              // Synchronous to ensure JMX port is released before start again
              getInstance(instanceMetadata).shutdown().get(1, TimeUnit.MINUTES);
          }
          catch (Exception e)
          {
              throw new RuntimeException(e);
          }
      }
  
      @Override
      public boolean isRunning(InstanceMetadata host)
      {
          return !getInstance(host).isShutdown();
      }
  
      private IInstance getInstance(InstanceMetadata instanceMetadata)
      {
          for (IInstance instance : instances)
          {
              if (instance.broadcastAddress().getHostName().equals(instanceMetadata.host()))
              {
                  return instance;
              }
          }
          throw new IllegalArgumentException("No instance found for host: " + instanceMetadata);
      }
  }
  