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.whatsapp;
  
  import org.apache.camel.AsyncCallback;
  import org.apache.camel.Exchange;
  import org.apache.camel.component.whatsapp.model.BaseMessage;
  import org.apache.camel.support.DefaultAsyncProducer;
  import org.apache.camel.util.ObjectHelper;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * A producer that sends messages to WhatsApp through the Business Cloud API.
   */
  public class WhatsAppProducer extends DefaultAsyncProducer {
      private static final Logger LOG = LoggerFactory.getLogger(WhatsAppProducer.class);
  
      private WhatsAppEndpoint endpoint;
  
      public WhatsAppProducer(WhatsAppEndpoint endpoint) {
          super(endpoint);
          this.endpoint = endpoint;
      }
  
      @Override
      public boolean process(Exchange exchange, AsyncCallback callback) {
          if (exchange.getIn().getBody() == null) {
              // fail fast
              LOG.debug("Received exchange with empty body, skipping");
              callback.done(true);
              return true;
          }
  
          // WhatsAppConfiguration config = endpoint.getConfiguration();
  
          // Tries to get a message in its OutgoingMessage format
          // Automatic conversion applies here
          BaseMessage message = exchange.getIn().getBody(BaseMessage.class);
          ObjectHelper.notNull(message, "message");
  
          final WhatsAppService service = endpoint.getWhatsappService();
  
          LOG.debug("Message being sent is: {}", message);
          LOG.debug("Headers of message being sent are: {}", exchange.getIn().getHeaders());
  
          service.sendMessage(exchange, callback, message);
          return false;
      }
  }
  