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.platform.http.springboot;
  
  import org.apache.camel.CamelContext;
  import org.apache.camel.component.platform.http.PlatformHttpComponent;
  import org.apache.camel.component.platform.http.spi.PlatformHttpEngine;
  import org.apache.camel.spring.boot.ComponentConfigurationProperties;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.boot.autoconfigure.AutoConfigureAfter;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
  import org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties;
  import org.springframework.boot.context.properties.EnableConfigurationProperties;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.context.annotation.DependsOn;
  import org.springframework.core.env.Environment;
  import org.springframework.core.task.SimpleAsyncTaskExecutor;
  import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
  
  import java.util.List;
  import java.util.concurrent.Executor;
  
  @Configuration(proxyBeanMethods = false)
  @AutoConfigureAfter(name = { "org.apache.camel.component.servlet.springboot.PlatformHttpComponentAutoConfiguration",
          "org.apache.camel.component.servlet.springboot.PlatformHttpComponentConverter" })
  @EnableConfigurationProperties({ComponentConfigurationProperties.class,PlatformHttpComponentConfiguration.class, WebMvcProperties.class})
  public class SpringBootPlatformHttpAutoConfiguration {
      private static final Logger LOG = LoggerFactory.getLogger(SpringBootPlatformHttpAutoConfiguration.class);
  
      @Bean(name = "platform-http-engine")
      @ConditionalOnMissingBean(PlatformHttpEngine.class)
      public PlatformHttpEngine springBootPlatformHttpEngine(Environment env, List<Executor> executors) {
          Executor executor;
  
          if (executors != null && !executors.isEmpty()) {
              executors.forEach(e -> LOG.debug("Analyzing executor: {}", e.getClass().getName()));
              
              // Check if virtual threads are enabled
              boolean virtualThreadsEnabled = Boolean.parseBoolean(env.getProperty("spring.threads.virtual.enabled", "false"));
              
              executor = executors.stream()
                      .filter(e -> {
                          try {
                              return Class.forName("org.springframework.security.task.DelegatingSecurityContextAsyncTaskExecutor").isInstance(e);
                          } catch (ClassNotFoundException ex) {
                              // No problem, spring-security is not configured
                              return false;
                          }
                      }).findAny().orElseGet(() -> {
                          if (virtualThreadsEnabled) {
                              // Prefer SimpleAsyncTaskExecutor when virtual threads are enabled
                              return executors.stream()
                                      .filter(e -> e instanceof SimpleAsyncTaskExecutor)
                                      .findFirst()
                                      .orElseGet(() -> 
                                              executors.stream()
                                                      .filter(e -> e instanceof ThreadPoolTaskExecutor)
                                                      .findFirst()
                                                      .orElseThrow(() -> new RuntimeException("No SimpleAsyncTaskExecutor or ThreadPoolTaskExecutor configured"))
                                      );
                          } else {
                              // Traditional behavior: prefer ThreadPoolTaskExecutor
                              return executors.stream()
                                      .filter(e -> e instanceof ThreadPoolTaskExecutor || e instanceof SimpleAsyncTaskExecutor)
                                      .findFirst()
                                      .orElseThrow(() -> new RuntimeException("No ThreadPoolTaskExecutor, SimpleAsyncTaskExecutor or DelegatingSecurityContextAsyncTaskExecutor configured"));
                          }
                      });
          } else {
              throw new RuntimeException("No Executor configured");
          }
  
          if (Boolean.parseBoolean(env.getProperty("spring.threads.virtual.enabled", "false"))) {
              LOG.info("Virtual threads enabled - using executor: {} for platform-http", executor.getClass().getName());
          } else {
              LOG.debug("Using executor: {}", executor.getClass().getName());
          }
          int port = Integer.parseInt(env.getProperty("server.port", "8080"));
          return new SpringBootPlatformHttpEngine(port, executor);
      }
  
      @Bean
      @DependsOn("configurePlatformHttpComponent")
      public CamelRequestHandlerMapping platformHttpEngineRequestMapping(PlatformHttpEngine engine, CamelContext camelContext) {
          PlatformHttpComponent component = camelContext.getComponent("platform-http", PlatformHttpComponent.class);
          CamelRequestHandlerMapping answer = new CamelRequestHandlerMapping(component, engine);
          return answer;
      }
  
  }
  