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.hl7.springboot.test;
  
  import org.apache.camel.EndpointInject;
  import org.apache.camel.Exchange;
  import org.apache.camel.Processor;
  import org.apache.camel.ProducerTemplate;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.hl7.HL7MLLPCodec;
  import org.apache.camel.component.hl7.HL7MLLPNettyDecoderFactory;
  import org.apache.camel.component.hl7.HL7MLLPNettyEncoderFactory;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.spring.boot.CamelAutoConfiguration;
  
  import org.junit.jupiter.api.BeforeAll;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
  
  import ca.uhn.hl7v2.model.Message;
  import io.netty.util.ResourceLeakDetector;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.test.annotation.DirtiesContext;
  import org.apache.camel.test.spring.junit5.CamelSpringBootTest;
  
  @DirtiesContext
  @CamelSpringBootTest
  @SpringBootTest(classes = { CamelAutoConfiguration.class, HL7MLLPNettyDecoderResourceLeakTest.class,
          HL7MLLPNettyDecoderResourceLeakTest.TestConfiguration.class })
  public class HL7MLLPNettyDecoderResourceLeakTest extends HL7TestSupport {
  
      @Autowired
      ProducerTemplate template;
  
      @EndpointInject("mock:result")
      MockEndpoint mock;
  
      @Bean("hl7decoder")
      private HL7MLLPNettyDecoderFactory getHL7MLLPNettyDecoderFactory() {
          return new HL7MLLPNettyDecoderFactory();
      }
  
      @Bean("hl7encoder")
      private HL7MLLPNettyEncoderFactory getHL7MLLPNettyEncoderFactory() {
          return new HL7MLLPNettyEncoderFactory();
      }
  
      @BeforeAll
      // As the ResourceLeakDetector just write error log when it find the leak,
      // We need to check the log file to see if there is a leak.
      public static void enableNettyResourceLeakDetector() {
          ResourceLeakDetector.setLevel(ResourceLeakDetector.Level.PARANOID);
      }
  
      @Test
      public void testSendHL7Message() throws Exception {
          assertDoesNotThrow(() -> sendHL7Message());
      }
  
      private void sendHL7Message() {
          String message = "MSH|^~\\&|MYSENDER|MYRECEIVER|MYAPPLICATION||200612211200||QRY^A19|1234|P|2.4";
  
          for (int i = 0; i < 10; i++) {
              template.sendBody("netty:tcp://127.0.0.1:" + getPort() + "?decoders=#hl7decoder&encoders=#hl7encoder",
                      message);
          }
      }
  
      // *************************************
      // Config
      // *************************************
  
      @Configuration
      public static class TestConfiguration {
  
          @Bean
          public RouteBuilder routeBuilder() {
              return new RouteBuilder() {
                  @Override
                  public void configure() throws Exception {
                      from("netty:tcp://127.0.0.1:" + getPort() + "?decoders=#hl7decoder&encoders=#hl7encoder")
                              .process(new Processor() {
                                  public void process(Exchange exchange) throws Exception {
                                      Message input = exchange.getIn().getBody(Message.class);
                                      exchange.getMessage().setBody(input.generateACK());
                                  }
                              }).to("mock:result");
                  }
              };
          }
      }
  
      @Bean(name = "hl7codec")
      private HL7MLLPCodec addHl7MllpCodec() throws Exception {
          HL7MLLPCodec codec = new HL7MLLPCodec();
          codec.setCharset("iso-8859-1");
          return codec;
      }
  }
  