/*
    * ====================================================================
    * 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.core5.http.impl.bootstrap;
  
  import org.apache.hc.core5.annotation.Experimental;
  import org.apache.hc.core5.function.Callback;
  import org.apache.hc.core5.function.Decorator;
  import org.apache.hc.core5.http.ConnectionReuseStrategy;
  import org.apache.hc.core5.http.HttpHost;
  import org.apache.hc.core5.http.config.CharCodingConfig;
  import org.apache.hc.core5.http.config.Http1Config;
  import org.apache.hc.core5.http.impl.Http1StreamListener;
  import org.apache.hc.core5.http.impl.HttpProcessors;
  import org.apache.hc.core5.http.impl.nio.ClientHttp1IOEventHandlerFactory;
  import org.apache.hc.core5.http.impl.nio.ClientHttp1StreamDuplexerFactory;
  import org.apache.hc.core5.http.nio.ssl.BasicClientTlsStrategy;
  import org.apache.hc.core5.http.nio.ssl.TlsStrategy;
  import org.apache.hc.core5.http.protocol.HttpProcessor;
  import org.apache.hc.core5.pool.ConnPoolListener;
  import org.apache.hc.core5.pool.DefaultDisposalCallback;
  import org.apache.hc.core5.pool.LaxConnPool;
  import org.apache.hc.core5.pool.ManagedConnPool;
  import org.apache.hc.core5.pool.PoolConcurrencyPolicy;
  import org.apache.hc.core5.pool.PoolReusePolicy;
  import org.apache.hc.core5.pool.StrictConnPool;
  import org.apache.hc.core5.reactor.IOEventHandlerFactory;
  import org.apache.hc.core5.reactor.IOReactorConfig;
  import org.apache.hc.core5.reactor.IOSession;
  import org.apache.hc.core5.reactor.IOSessionListener;
  import org.apache.hc.core5.util.Timeout;
  
  /**
   * {@link HttpAsyncRequester} bootstrap.
   *
   * @since 5.0
   */
  public class AsyncRequesterBootstrap {
  
      private IOReactorConfig ioReactorConfig;
      private Http1Config http1Config;
      private CharCodingConfig charCodingConfig;
      private HttpProcessor httpProcessor;
      private ConnectionReuseStrategy connStrategy;
      private int defaultMaxPerRoute;
      private int maxTotal;
      private Timeout timeToLive;
      private PoolReusePolicy poolReusePolicy;
      private PoolConcurrencyPolicy poolConcurrencyPolicy;
      private TlsStrategy tlsStrategy;
      private Timeout handshakeTimeout;
      private Decorator<IOSession> ioSessionDecorator;
      private Callback<Exception> exceptionCallback;
      private IOSessionListener sessionListener;
      private Http1StreamListener streamListener;
      private ConnPoolListener<HttpHost> connPoolListener;
  
      private AsyncRequesterBootstrap() {
      }
  
      public static AsyncRequesterBootstrap bootstrap() {
          return new AsyncRequesterBootstrap();
      }
  
      /**
       * Sets I/O reactor configuration.
       */
      public final AsyncRequesterBootstrap setIOReactorConfig(final IOReactorConfig ioReactorConfig) {
          this.ioReactorConfig = ioReactorConfig;
          return this;
      }
  
      /**
       * Sets HTTP/1.1 protocol parameters
       */
      public final AsyncRequesterBootstrap setHttp1Config(final Http1Config http1Config) {
         this.http1Config = http1Config;
         return this;
     }
 
     /**
      * Sets message char coding.
      */
     public final AsyncRequesterBootstrap setCharCodingConfig(final CharCodingConfig charCodingConfig) {
         this.charCodingConfig = charCodingConfig;
         return this;
     }
 
     /**
      * Assigns {@link HttpProcessor} instance.
      */
     public final AsyncRequesterBootstrap setHttpProcessor(final HttpProcessor httpProcessor) {
         this.httpProcessor = httpProcessor;
         return this;
     }
 
     /**
      * Assigns {@link ConnectionReuseStrategy} instance.
      */
     public final AsyncRequesterBootstrap setConnectionReuseStrategy(final ConnectionReuseStrategy connStrategy) {
         this.connStrategy = connStrategy;
         return this;
     }
 
     public final AsyncRequesterBootstrap setDefaultMaxPerRoute(final int defaultMaxPerRoute) {
         this.defaultMaxPerRoute = defaultMaxPerRoute;
         return this;
     }
 
     public final AsyncRequesterBootstrap setMaxTotal(final int maxTotal) {
         this.maxTotal = maxTotal;
         return this;
     }
 
     public final AsyncRequesterBootstrap setTimeToLive(final Timeout timeToLive) {
         this.timeToLive = timeToLive;
         return this;
     }
 
     /**
      * Assigns {@link PoolReusePolicy} instance.
      */
     public final AsyncRequesterBootstrap setPoolReusePolicy(final PoolReusePolicy poolReusePolicy) {
         this.poolReusePolicy = poolReusePolicy;
         return this;
     }
 
     /**
      * Assigns {@link PoolConcurrencyPolicy} instance.
      */
     @Experimental
     public final AsyncRequesterBootstrap setPoolConcurrencyPolicy(final PoolConcurrencyPolicy poolConcurrencyPolicy) {
         this.poolConcurrencyPolicy = poolConcurrencyPolicy;
         return this;
     }
 
     /**
      * Assigns {@link TlsStrategy} instance.
      */
     public final AsyncRequesterBootstrap setTlsStrategy(final TlsStrategy tlsStrategy) {
         this.tlsStrategy = tlsStrategy;
         return this;
     }
 
     public final AsyncRequesterBootstrap setTlsHandshakeTimeout(final Timeout handshakeTimeout) {
         this.handshakeTimeout = handshakeTimeout;
         return this;
     }
 
     /**
      * Assigns {@link IOSession} {@link Decorator} instance.
      */
     public final AsyncRequesterBootstrap setIOSessionDecorator(final Decorator<IOSession> ioSessionDecorator) {
         this.ioSessionDecorator = ioSessionDecorator;
         return this;
     }
 
     /**
      * Assigns {@link Exception} {@link Callback} instance.
      */
     public final AsyncRequesterBootstrap setExceptionCallback(final Callback<Exception> exceptionCallback) {
         this.exceptionCallback = exceptionCallback;
         return this;
     }
 
     /**
      * Assigns {@link IOSessionListener} instance.
      */
     public final AsyncRequesterBootstrap setIOSessionListener(final IOSessionListener sessionListener) {
         this.sessionListener = sessionListener;
         return this;
     }
 
     /**
      * Assigns {@link Http1StreamListener} instance.
      */
     public final AsyncRequesterBootstrap setStreamListener(final Http1StreamListener streamListener) {
         this.streamListener = streamListener;
         return this;
     }
 
     /**
      * Assigns {@link ConnPoolListener} instance.
      */
     public final AsyncRequesterBootstrap setConnPoolListener(final ConnPoolListener<HttpHost> connPoolListener) {
         this.connPoolListener = connPoolListener;
         return this;
     }
 
     public HttpAsyncRequester create() {
         final ManagedConnPool<HttpHost, IOSession> connPool;
         switch (poolConcurrencyPolicy != null ? poolConcurrencyPolicy : PoolConcurrencyPolicy.STRICT) {
             case LAX:
                 connPool = new LaxConnPool<>(
                         defaultMaxPerRoute > 0 ? defaultMaxPerRoute : 20,
                         timeToLive,
                         poolReusePolicy,
                         new DefaultDisposalCallback<IOSession>(),
                         connPoolListener);
                 break;
             case STRICT:
             default:
                 connPool = new StrictConnPool<>(
                         defaultMaxPerRoute > 0 ? defaultMaxPerRoute : 20,
                         maxTotal > 0 ? maxTotal : 50,
                         timeToLive,
                         poolReusePolicy,
                         new DefaultDisposalCallback<IOSession>(),
                         connPoolListener);
                 break;
         }
         final ClientHttp1StreamDuplexerFactoryactory.html#ClientHttp1StreamDuplexerFactory">ClientHttp1StreamDuplexerFactory streamDuplexerFactory = new ClientHttp1StreamDuplexerFactory(
                 httpProcessor != null ? httpProcessor : HttpProcessors.client(),
                 http1Config != null ? http1Config : Http1Config.DEFAULT,
                 charCodingConfig != null ? charCodingConfig : CharCodingConfig.DEFAULT,
                 connStrategy,
                 null,
                 null,
                 streamListener);
         final IOEventHandlerFactory ioEventHandlerFactory = new ClientHttp1IOEventHandlerFactory(
                 streamDuplexerFactory,
                 tlsStrategy != null ? tlsStrategy : new BasicClientTlsStrategy(),
                 handshakeTimeout);
         return new HttpAsyncRequester(
                 ioReactorConfig,
                 ioEventHandlerFactory,
                 ioSessionDecorator,
                 exceptionCallback,
                 sessionListener,
                 connPool);
     }
 
 }