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.google.pubsub.integration;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.camel.Endpoint;
  import org.apache.camel.EndpointInject;
  import org.apache.camel.Exchange;
  import org.apache.camel.Produce;
  import org.apache.camel.ProducerTemplate;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.google.pubsub.GooglePubsubConstants;
  import org.apache.camel.component.google.pubsub.PubsubTestSupport;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.support.DefaultExchange;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  public class SingleExchangeRoundtripIT extends PubsubTestSupport {
  
      private static final String TOPIC_NAME = "singleSend";
      private static final String SUBSCRIPTION_NAME = "singleReceive";
  
      @EndpointInject("direct:from")
      private Endpoint directIn;
  
      @EndpointInject("google-pubsub:{{project.id}}:" + TOPIC_NAME)
      private Endpoint pubsubTopic;
  
      @EndpointInject("mock:sendResult")
      private MockEndpoint sendResult;
  
      @EndpointInject("google-pubsub:{{project.id}}:" + SUBSCRIPTION_NAME + "?synchronousPull=true")
      private Endpoint pubsubSubscription;
  
      @EndpointInject("mock:receiveResult")
      private MockEndpoint receiveResult;
  
      @Produce("direct:from")
      private ProducerTemplate producer;
  
      @Override
      public void createTopicSubscription() {
          createTopicSubscriptionPair(TOPIC_NAME, SUBSCRIPTION_NAME);
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          return new RouteBuilder() {
              public void configure() {
                  from(directIn).routeId("Single_Send").to(pubsubTopic).to(sendResult);
  
                  from(pubsubSubscription).routeId("Single_Receive").to("direct:one");
  
                  from("direct:one").to(receiveResult);
              }
          };
      }
  
      @Test
      public void testSingleMessageSend() throws Exception {
  
          Exchange exchange = new DefaultExchange(context);
  
          String attributeKey = "ATTRIBUTE-TEST-KEY";
          String attributeValue = "ATTRIBUTE-TEST-VALUE";
  
          Map<String, String> attributes = new HashMap<>();
          attributes.put(attributeKey, attributeValue);
  
          exchange.getIn().setBody("Single  : " + exchange.getExchangeId());
          exchange.getIn().setHeader(GooglePubsubConstants.ATTRIBUTES, attributes);
  
          receiveResult.expectedMessageCount(1);
          receiveResult.expectedBodiesReceivedInAnyOrder(exchange.getIn().getBody());
  
          producer.send(exchange);
  
          List<Exchange> sentExchanges = sendResult.getExchanges();
          assertEquals(1, sentExchanges.size(), "Sent exchanges");
  
          Exchange sentExchange = sentExchanges.get(0);
  
          assertEquals(exchange.getIn().getHeader(GooglePubsubConstants.MESSAGE_ID),
                  sentExchange.getIn().getHeader(GooglePubsubConstants.MESSAGE_ID), "Sent ID");
  
          receiveResult.assertIsSatisfied(5000);
  
          List<Exchange> receivedExchanges = receiveResult.getExchanges();
  
          assertNotNull(receivedExchanges, "Received exchanges");
  
          Exchange receivedExchange = receivedExchanges.get(0);
  
          assertNotNull(receivedExchange.getIn().getHeader(GooglePubsubConstants.MESSAGE_ID), "PUBSUB Message ID Property");
          assertNotNull(receivedExchange.getIn().getHeader(GooglePubsubConstants.PUBLISH_TIME), "PUBSUB Published Time");
  
          assertEquals(attributeValue,
                  ((Map) receivedExchange.getIn().getHeader(GooglePubsubConstants.ATTRIBUTES)).get(attributeKey),
                  "PUBSUB Header Attribute");
  
          assertEquals(sentExchange.getIn().getHeader(GooglePubsubConstants.MESSAGE_ID),
                  receivedExchange.getIn().getHeader(GooglePubsubConstants.MESSAGE_ID));
      }
  }
  