/*
    * ====================================================================
    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  package org.apache.hc.client5.http.impl.async;
  
  import java.util.concurrent.Future;
  
  import org.apache.hc.client5.http.async.HttpAsyncClient;
  import org.apache.hc.client5.http.async.methods.SimpleHttpRequest;
  import org.apache.hc.client5.http.async.methods.SimpleHttpResponse;
  import org.apache.hc.client5.http.async.methods.SimpleRequestProducer;
  import org.apache.hc.client5.http.async.methods.SimpleResponseConsumer;
  import org.apache.hc.client5.http.protocol.HttpClientContext;
  import org.apache.hc.core5.annotation.Contract;
  import org.apache.hc.core5.annotation.ThreadingBehavior;
  import org.apache.hc.core5.concurrent.FutureCallback;
  import org.apache.hc.core5.function.Supplier;
  import org.apache.hc.core5.http.HttpHost;
  import org.apache.hc.core5.http.nio.AsyncPushConsumer;
  import org.apache.hc.core5.http.nio.AsyncRequestProducer;
  import org.apache.hc.core5.http.nio.AsyncResponseConsumer;
  import org.apache.hc.core5.http.nio.HandlerFactory;
  import org.apache.hc.core5.http.protocol.HttpContext;
  import org.apache.hc.core5.io.ModalCloseable;
  import org.apache.hc.core5.reactor.IOReactorStatus;
  import org.apache.hc.core5.util.Args;
  import org.apache.hc.core5.util.TimeValue;
  
  /**
   * Base implementation of {@link HttpAsyncClient} that also implements {@link ModalCloseable}.
   *
   * @since 5.0
   */
  @Contract(threading = ThreadingBehavior.STATELESS)
  public abstract class CloseableHttpAsyncClient implements HttpAsyncClient, ModalCloseable {
  
      public abstract void start();
  
      public abstract IOReactorStatus getStatus();
  
      public abstract void awaitShutdown(TimeValue waitTime) throws InterruptedException;
  
      public abstract void initiateShutdown();
  
      protected abstract <T> Future<T> doExecute(
              final HttpHost target,
              final AsyncRequestProducer requestProducer,
              final AsyncResponseConsumer<T> responseConsumer,
              final HandlerFactory<AsyncPushConsumer> pushHandlerFactory,
              final HttpContext context,
              final FutureCallback<T> callback);
  
      public final <T> Future<T> execute(
              final HttpHost target,
              final AsyncRequestProducer requestProducer,
              final AsyncResponseConsumer<T> responseConsumer,
              final HandlerFactory<AsyncPushConsumer> pushHandlerFactory,
              final HttpContext context,
              final FutureCallback<T> callback) {
          Args.notNull(requestProducer, "Request producer");
          Args.notNull(responseConsumer, "Response consumer");
          return doExecute(target, requestProducer, responseConsumer, pushHandlerFactory, context, callback);
      }
  
      @Override
      public final <T> Future<T> execute(
              final AsyncRequestProducer requestProducer,
              final AsyncResponseConsumer<T> responseConsumer,
              final HandlerFactory<AsyncPushConsumer> pushHandlerFactory,
              final HttpContext context,
              final FutureCallback<T> callback) {
          Args.notNull(requestProducer, "Request producer");
          Args.notNull(responseConsumer, "Response consumer");
          return doExecute(null, requestProducer, responseConsumer, pushHandlerFactory, context, callback);
      }
  
     public final <T> Future<T> execute(
             final AsyncRequestProducer requestProducer,
             final AsyncResponseConsumer<T> responseConsumer,
             final HttpContext context,
             final FutureCallback<T> callback) {
         Args.notNull(requestProducer, "Request producer");
         Args.notNull(responseConsumer, "Response consumer");
         return execute(requestProducer, responseConsumer, null, context, callback);
     }
 
     public final <T> Future<T> execute(
             final AsyncRequestProducer requestProducer,
             final AsyncResponseConsumer<T> responseConsumer,
             final FutureCallback<T> callback) {
         Args.notNull(requestProducer, "Request producer");
         Args.notNull(responseConsumer, "Response consumer");
         return execute(requestProducer, responseConsumer, HttpClientContext.create(), callback);
     }
 
     public final Future<SimpleHttpResponse> execute(
             final SimpleHttpRequest request,
             final HttpContext context,
             final FutureCallback<SimpleHttpResponse> callback) {
         Args.notNull(request, "Request");
         return execute(SimpleRequestProducer.create(request), SimpleResponseConsumer.create(), context, callback);
     }
 
     public final Future<SimpleHttpResponse> execute(
             final SimpleHttpRequest request,
             final FutureCallback<SimpleHttpResponse> callback) {
         return execute(request, HttpClientContext.create(), callback);
     }
 
     public abstract void register(String hostname, String uriPattern, Supplier<AsyncPushConsumer> supplier);
 
     public final void register(final String uriPattern, final Supplier<AsyncPushConsumer> supplier) {
         register(null, uriPattern, supplier);
     }
 
 }