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.quarkus.component.servlet;
  
  import java.util.concurrent.Executor;
  import java.util.concurrent.Executors;
  
  import io.undertow.servlet.api.Deployment;
  import io.undertow.servlet.api.ServletInfo;
  import io.undertow.servlet.core.ManagedServlet;
  import io.undertow.servlet.core.ManagedServlets;
  import io.undertow.servlet.spec.ServletContextImpl;
  import io.vertx.core.json.JsonObject;
  import jakarta.enterprise.context.ApplicationScoped;
  import jakarta.inject.Named;
  import jakarta.inject.Singleton;
  import jakarta.servlet.ServletContext;
  import jakarta.servlet.http.HttpServletRequest;
  import org.apache.camel.Exchange;
  import org.apache.camel.Message;
  import org.apache.camel.Processor;
  import org.apache.camel.http.common.HttpMessage;
  import org.apache.camel.spi.MimeType;
  
  import static org.apache.camel.quarkus.servlet.runtime.CamelServletConfig.ServletConfig.DEFAULT_SERVLET_NAME;
  
  @ApplicationScoped
  public class ServletProducers {
      @Singleton
      @Named("customServletExecutor")
      public Executor customServletExecutor() {
          return Executors.newSingleThreadExecutor(r -> new Thread(r, "custom-executor"));
      }
  
      @Singleton
      @Named("servletConfigInfoProcessor")
      public Processor servletConfigInfoProcessor() {
          return exchange -> {
              JsonObject json = new JsonObject();
              Message message = exchange.getMessage();
              HttpMessage httpMessage = exchange.getIn(HttpMessage.class);
              HttpServletRequest request = httpMessage.getRequest();
              String servletName = message.getHeader("servletName", DEFAULT_SERVLET_NAME, String.class);
              ServletContext servletContext = request.getServletContext();
              Deployment deployment = ((ServletContextImpl) servletContext).getDeployment();
              ManagedServlets servlets = deployment.getServlets();
              ManagedServlet servlet = servlets.getManagedServlet(servletName);
              ServletInfo servletInfo = servlet.getServletInfo();
  
              json.put("isAsync", request.isAsyncSupported());
              json.put("threadName", Thread.currentThread().getName());
              json.put("loadOnStartup", servletInfo.getLoadOnStartup());
              json.put("initParams", servletInfo.getInitParams());
  
              message.setHeader(Exchange.CONTENT_TYPE, MimeType.JSON.type());
              message.setBody(json.encode());
          };
      }
  }
  