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.concurrent;
  
  import org.apache.cassandra.utils.Shared;
  
  import static org.apache.cassandra.utils.Shared.Recursive.INTERFACES;
  import static org.apache.cassandra.utils.Shared.Scope.SIMULATION;
  
  /**
   * Entry point for configuring and creating new executors.
   *
   * Supports quick and easy construction of default-configured executors via
   * <li>{@link #sequential(String)}
   * <li>{@link #pooled(String, int)}
   *
   * Supports custom configuration of executors via
   * <li>{@link #configureSequential(String)}
   * <li>{@link #configurePooled(String, int)}
   */
  @Shared(scope = SIMULATION, inner = INTERFACES)
  public interface ExecutorBuilderFactory<E extends ExecutorPlus, S extends SequentialExecutorPlus>
  {
      /**
       * Configure a sequential (single threaded) executor
       */
      ExecutorBuilder<? extends S> configureSequential(String name);
  
      /**
       * Configure a pooled executor with the requested number of threads
       */
      ExecutorBuilder<? extends E> configurePooled(String name, int threads);
  
      /**
       * Return a default configuration of sequential executor
       */
      default S sequential(String name) { return configureSequential(name).build(); }
  
      /**
       * Return a default configuration of pooled executor
       */
      default E pooled(String name, int threads) { return configurePooled(name, threads).build(); }
  
      /**
       * Entry point for configuring and creating new executors.
       *
       * Supports quick and easy construction of default-configured executors via
       * <li>{@link #sequential(String)}
       * <li>{@link #pooled(String, int)}
       *
       * Supports custom configuration of executors via
       * <li>{@link #configureSequential(String)}
       * <li>{@link #configurePooled(String, int)}
       *
       * Supports any of the above with added JMX registration via sub-factories
       * <li>{@link #withJmx(String)}
       * <li>{@link #withJmxInternal()}
       */
      interface Jmxable<E extends ExecutorPlus, S extends SequentialExecutorPlus> extends ExecutorBuilderFactory<E, S>
      {
          /**
           * @return a factory that configures executors that register against JMX using the provided jmx path
           */
          ExecutorBuilderFactory<E, S> withJmx(String jmxPath);
  
          /**
           * @return a factory that configures executors that register against JMX using the "internal" jmx path
           */
          default ExecutorBuilderFactory<E, S> withJmxInternal() { return withJmx("internal"); }
      }
  }
  