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.testing;
  
  import java.util.concurrent.ThreadFactory;
  
  import com.google.common.util.concurrent.ThreadFactoryBuilder;
  
  import com.datastax.driver.core.NettyOptions;
  import io.netty.channel.EventLoopGroup;
  import io.netty.channel.nio.NioEventLoopGroup;
  import io.netty.util.HashedWheelTimer;
  import io.netty.util.Timer;
  
  /**
   * This class is used to encapsulate several heavy-weight objects that can be shared across all executions
   * of tests within a test run. It intentionally does not close these resources when the Cassandra Driver's
   * cluster is closed, so they can be reused for the next test.
   */
  public class SharedExecutorNettyOptions extends NettyOptions
  {
      private SharedExecutorNettyOptions()
      {
      }
  
      public static final SharedExecutorNettyOptions INSTANCE = new SharedExecutorNettyOptions();
  
      private final ThreadFactory threadFactory = new ThreadFactoryBuilder()
                                                  .setDaemon(true)
                                                  .setNameFormat("IntegrationTest-%d")
                                                  .build();
      private final HashedWheelTimer sharedHWT = new HashedWheelTimer(threadFactory);
      private final EventLoopGroup sharedEventLoopGroup = new NioEventLoopGroup(0, threadFactory);
  
      @Override
      public EventLoopGroup eventLoopGroup(ThreadFactory threadFactory)
      {
          return sharedEventLoopGroup;
      }
  
      @Override
      public void onClusterClose(EventLoopGroup eventLoopGroup)
      {
      }
  
      @Override
      public Timer timer(ThreadFactory threadFactory)
      {
          return sharedHWT;
      }
  
      @Override
      public void onClusterClose(Timer timer)
      {
      }
  }
  