/*
    * ====================================================================
    * 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.testing.classic;
  
  import java.io.IOException;
  import java.util.concurrent.atomic.AtomicReference;
  
  import javax.net.ssl.SSLContext;
  
  import org.apache.hc.core5.http.ClassicHttpRequest;
  import org.apache.hc.core5.http.ClassicHttpResponse;
  import org.apache.hc.core5.http.HttpException;
  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.DefaultAddressResolver;
  import org.apache.hc.core5.http.impl.DefaultConnectionReuseStrategy;
  import org.apache.hc.core5.http.impl.HttpProcessors;
  import org.apache.hc.core5.http.impl.bootstrap.HttpRequester;
  import org.apache.hc.core5.http.impl.io.HttpRequestExecutor;
  import org.apache.hc.core5.http.io.HttpClientConnection;
  import org.apache.hc.core5.http.io.SocketConfig;
  import org.apache.hc.core5.http.protocol.HttpContext;
  import org.apache.hc.core5.http.protocol.HttpProcessor;
  import org.apache.hc.core5.io.CloseMode;
  import org.apache.hc.core5.net.URIAuthority;
  import org.apache.hc.core5.pool.PoolReusePolicy;
  import org.apache.hc.core5.pool.StrictConnPool;
  import org.apache.hc.core5.util.TimeValue;
  
  public class ClassicTestClient {
  
      private final SSLContext sslContext;
      private final SocketConfig socketConfig;
  
      private final AtomicReference<HttpRequester> requesterRef;
  
      public ClassicTestClient(final SSLContext sslContext, final SocketConfig socketConfig) {
          super();
          this.sslContext = sslContext;
          this.socketConfig = socketConfig != null ? socketConfig : SocketConfig.DEFAULT;
          this.requesterRef = new AtomicReference<>(null);
      }
  
      public ClassicTestClient(final SocketConfig socketConfig) {
          this(null, socketConfig);
      }
  
      public ClassicTestClient() {
          this(null, null);
      }
  
      public void start() {
          start(null);
      }
  
      public void start(final HttpProcessor httpProcessor) {
          if (requesterRef.get() == null) {
              final HttpRequestExecutorExecutor.html#HttpRequestExecutor">HttpRequestExecutor requestExecutor = new HttpRequestExecutor(
                      HttpRequestExecutor.DEFAULT_WAIT_FOR_CONTINUE,
                      DefaultConnectionReuseStrategy.INSTANCE,
                      LoggingHttp1StreamListener.INSTANCE);
              final StrictConnPool<HttpHost, HttpClientConnection> connPool = new StrictConnPool<>(
                      20,
                      50,
                      TimeValue.NEG_ONE_MILLISECOND,
                      PoolReusePolicy.LIFO,
                      LoggingConnPoolListener.INSTANCE);
              final HttpRequesterotstrap/HttpRequester.html#HttpRequester">HttpRequester requester = new HttpRequester(
                      requestExecutor,
                      httpProcessor != null ? httpProcessor : HttpProcessors.client(),
                      connPool,
                      socketConfig,
                      new LoggingBHttpClientConnectionFactory(Http1Config.DEFAULT, CharCodingConfig.DEFAULT),
                     sslContext != null ? sslContext.getSocketFactory() : null,
                     null,
                     null,
                     DefaultAddressResolver.INSTANCE);
             requesterRef.compareAndSet(null, requester);
         } else {
             throw new IllegalStateException("Requester has already been started");
         }
     }
 
     public void shutdown(final CloseMode closeMode) {
         final HttpRequester requester = requesterRef.getAndSet(null);
         if (requester != null) {
             requester.close(closeMode);
         }
     }
 
     public ClassicHttpResponse execute(
             final HttpHost targetHost,
             final ClassicHttpRequest request,
             final HttpContext context) throws HttpException, IOException {
         final HttpRequester requester = this.requesterRef.get();
         if (requester == null) {
             throw new IllegalStateException("Requester has not been started");
         }
         if (request.getAuthority() == null) {
             request.setAuthority(new URIAuthority(targetHost));
         }
         request.setScheme(targetHost.getSchemeName());
         return requester.execute(targetHost, request, socketConfig.getSoTimeout(), context);
     }
 
 }