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.camel.component.http;
  
  import java.nio.charset.StandardCharsets;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.camel.Exchange;
  import org.apache.hc.core5.http.Header;
  import org.apache.hc.core5.http.HttpStatus;
  import org.apache.hc.core5.http.impl.bootstrap.HttpServer;
  import org.apache.hc.core5.http.impl.bootstrap.ServerBootstrap;
  import org.apache.hc.core5.http.io.entity.StringEntity;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  /**
   *
   */
  public class HttpProducerTwoHeadersWithSameKeyTest extends BaseHttpTest {
  
      private HttpServer localServer;
  
      @Override
      public void setupResources() throws Exception {
          localServer = ServerBootstrap.bootstrap()
                  .setCanonicalHostName("localhost").setHttpProcessor(getBasicHttpProcessor())
                  .setConnectionReuseStrategy(getConnectionReuseStrategy()).setResponseFactory(getHttpResponseFactory())
                  .setSslContext(getSSLContext())
                  .register("/myapp", (request, response, context) -> {
                      Header[] from = request.getHeaders("from");
                      assertEquals("me", from[0].getValue());
                      Header[] to = request.getHeaders("to");
                      assertEquals("[foo, bar]", to[0].getValue());
  
                      response.setHeader("bar", "yes");
                      response.addHeader("foo", "123");
                      response.addHeader("foo", "456");
                      response.setEntity(new StringEntity("OK", StandardCharsets.US_ASCII));
                      response.setCode(HttpStatus.SC_OK);
                  })
                  .register("/myapp", (request, response, context) -> {
                      Header[] from = request.getHeaders("from");
                      assertEquals("me", from[0].getValue());
                      Header[] to = request.getHeaders("to");
                      assertEquals("[foo, bar]", to[0].getValue());
  
                      response.setHeader("bar", "yes");
                      response.addHeader("foo", "123");
                      response.addHeader("foo", "456");
                      response.setEntity(new StringEntity("OK", StandardCharsets.US_ASCII));
                      response.setCode(HttpStatus.SC_OK);
                  }).create();
          localServer.start();
      }
  
      @Override
      public void cleanupResources() throws Exception {
  
          if (localServer != null) {
              localServer.stop();
          }
      }
  
      @Test
      public void testTwoHeadersWithSameKeyHeader() {
          String endpointUri
                  = "http://localhost:" + localServer.getLocalPort() + "/myapp";
  
          Exchange out = template.request(endpointUri, exchange -> {
              exchange.getIn().setBody(null);
              exchange.getIn().setHeader("from", "me");
              List<String> list = new ArrayList<>();
              list.add("foo");
              list.add("bar");
              exchange.getIn().setHeader("to", list);
          });
  
          assertNotNull(out);
          assertFalse(out.isFailed(), "Should not fail");
          assertEquals("OK", out.getMessage().getBody(String.class));
          assertEquals("yes", out.getMessage().getHeader("bar"));
  
          List<?> foo = out.getMessage().getHeader("foo", List.class);
          assertNotNull(foo);
          assertEquals(2, foo.size());
          assertEquals("123", foo.get(0));
          assertEquals("456", foo.get(1));
      }
  
  }
  