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.twitter.directmessage;
  
  import org.apache.camel.CamelExchangeException;
  import org.apache.camel.Exchange;
  import org.apache.camel.component.twitter.TwitterConstants;
  import org.apache.camel.component.twitter.TwitterEndpoint;
  import org.apache.camel.support.DefaultProducer;
  import org.apache.camel.util.ObjectHelper;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import twitter4j.v1.User;
  
  /**
   * Produces text as a direct message.
   */
  public class DirectMessageProducer extends DefaultProducer {
  
      private static final Logger LOG = LoggerFactory.getLogger(DirectMessageProducer.class);
  
      private TwitterEndpoint endpoint;
      private String user;
  
      public DirectMessageProducer(TwitterEndpoint endpoint, String user) {
          super(endpoint);
          this.endpoint = endpoint;
          this.user = user;
      }
  
      @Override
      public void process(Exchange exchange) throws Exception {
          // send direct message
          String toUsername = user;
          if (ObjectHelper.isNotEmpty(exchange.getIn().getHeader(TwitterConstants.TWITTER_USER, String.class))) {
              toUsername = exchange.getIn().getHeader(TwitterConstants.TWITTER_USER, String.class);
          }
          String text = exchange.getIn().getBody(String.class);
  
          if (toUsername.isEmpty()) {
              throw new CamelExchangeException("Username not configured on TwitterEndpoint", exchange);
          } else {
              LOG.debug("Sending to: {} message: {}", toUsername, text);
              User userStatus = endpoint.getProperties().getTwitter().v1().users().showUser(toUsername);
              endpoint.getProperties().getTwitter().v1().directMessages().sendDirectMessage(userStatus.getId(), text);
          }
      }
  
  }
  