/*
    * ====================================================================
    * 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 org.apache.hc.core5.http.ClassicHttpRequest;
  import org.apache.hc.core5.http.ClassicHttpResponse;
  import org.apache.hc.core5.http.ContentType;
  import org.apache.hc.core5.http.Header;
  import org.apache.hc.core5.http.HttpException;
  import org.apache.hc.core5.http.HttpHost;
  import org.apache.hc.core5.http.HttpStatus;
  import org.apache.hc.core5.http.Method;
  import org.apache.hc.core5.http.impl.bootstrap.HttpRequester;
  import org.apache.hc.core5.http.impl.bootstrap.HttpServer;
  import org.apache.hc.core5.http.impl.bootstrap.RequesterBootstrap;
  import org.apache.hc.core5.http.impl.bootstrap.ServerBootstrap;
  import org.apache.hc.core5.http.io.HttpFilterChain;
  import org.apache.hc.core5.http.io.HttpFilterHandler;
  import org.apache.hc.core5.http.io.SocketConfig;
  import org.apache.hc.core5.http.io.entity.StringEntity;
  import org.apache.hc.core5.http.message.BasicClassicHttpRequest;
  import org.apache.hc.core5.http.protocol.HttpContext;
  import org.apache.hc.core5.http.protocol.HttpCoreContext;
  import org.apache.hc.core5.io.CloseMode;
  import org.apache.hc.core5.util.Timeout;
  import org.hamcrest.CoreMatchers;
  import org.hamcrest.MatcherAssert;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.ExternalResource;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class ClassicServerBootstrapFilterTest {
  
      private static final Timeout TIMEOUT = Timeout.ofSeconds(30);
  
      private final Logger log = LoggerFactory.getLogger(getClass());
  
      private HttpServer server;
  
      @Rule
      public ExternalResource serverResource = new ExternalResource() {
  
          @Override
          protected void before() throws Throwable {
              log.debug("Starting up test server");
              server = ServerBootstrap.bootstrap()
                      .setSocketConfig(SocketConfig.custom()
                              .setSoTimeout(TIMEOUT)
                              .build())
                      .register("*", new EchoHandler())
                      .addFilterLast("test-filter", new HttpFilterHandler() {
  
                          @Override
                          public void handle(
                                  final ClassicHttpRequest request,
                                  final HttpFilterChain.ResponseTrigger responseTrigger,
                                  final HttpContext context,
                                  final HttpFilterChain chain) throws HttpException, IOException {
                              chain.proceed(request, new HttpFilterChain.ResponseTrigger() {
  
                                  @Override
                                  public void sendInformation(
                                          final ClassicHttpResponse response) throws HttpException, IOException {
                                      responseTrigger.sendInformation(response);
                                  }
  
                                  @Override
                                  public void submitResponse(
                                          final ClassicHttpResponse response) throws HttpException, IOException {
                                      response.setHeader("X-Test-Filter", "active");
                                     responseTrigger.submitResponse(response);
                                 }
 
                             }, context);
                         }
 
                     })
                     .setExceptionListener(LoggingExceptionListener.INSTANCE)
                     .setStreamListener(LoggingHttp1StreamListener.INSTANCE)
                     .create();
         }
 
         @Override
         protected void after() {
             log.debug("Shutting down test server");
             if (server != null) {
                 try {
                     server.close(CloseMode.IMMEDIATE);
                 } catch (final Exception ignore) {
                 }
             }
         }
 
     };
 
     private HttpRequester requester;
 
     @Rule
     public ExternalResource clientResource = new ExternalResource() {
 
         @Override
         protected void before() throws Throwable {
             log.debug("Starting up test client");
             requester = RequesterBootstrap.bootstrap()
                     .setSocketConfig(SocketConfig.custom()
                             .setSoTimeout(TIMEOUT)
                             .build())
                     .setMaxTotal(2)
                     .setDefaultMaxPerRoute(2)
                     .setStreamListener(LoggingHttp1StreamListener.INSTANCE)
                     .setConnPoolListener(LoggingConnPoolListener.INSTANCE)
                     .create();
         }
 
         @Override
         protected void after() {
             log.debug("Shutting down test client");
             if (requester != null) {
                 try {
                     requester.close(CloseMode.GRACEFUL);
                 } catch (final Exception ignore) {
                 }
             }
         }
 
     };
 
     @Test
     public void testFilters() throws Exception {
         server.start();
         final HttpHost target = new HttpHost("http", "localhost", server.getLocalPort());
         final HttpCoreContext context = HttpCoreContext.create();
         final ClassicHttpRequest request = new BasicClassicHttpRequest(Method.POST, "/filters");
         request.setEntity(new StringEntity("some stuff", ContentType.TEXT_PLAIN));
         try (final ClassicHttpResponse response = requester.execute(target, request, TIMEOUT, context)) {
             MatcherAssert.assertThat(response.getCode(), CoreMatchers.equalTo(HttpStatus.SC_OK));
             final Header testFilterHeader = response.getHeader("X-Test-Filter");
             MatcherAssert.assertThat(testFilterHeader, CoreMatchers.notNullValue());
         }
     }
 
 }