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;
  
  import org.apache.camel.Consumer;
  import org.apache.camel.Exchange;
  import org.apache.camel.Message;
  import org.apache.camel.Processor;
  import org.apache.camel.component.twitter.consumer.AbstractTwitterConsumerHandler;
  import org.apache.camel.component.twitter.consumer.DefaultTwitterConsumer;
  import twitter4j.v1.User;
  
  public final class TwitterHelper {
      private TwitterHelper() {
      }
  
      public static void setUserHeader(Exchange exchange, User user) {
          setUserHeader(exchange.getIn(), user);
      }
  
      public static void setUserHeader(Message message, User user) {
          message.setHeader(TwitterConstants.TWITTER_USER, user);
      }
  
      public static void setUserHeader(Exchange exchange, int index, User user, String role) {
          setUserHeader(exchange.getIn(), index, user, role);
      }
  
      public static void setUserHeader(Message message, int index, User user, String role) {
          message.setHeader(TwitterConstants.TWITTER_USER + index, user);
          message.setHeader(TwitterConstants.TWITTER_USER_ROLE + index, role);
      }
  
      public static Consumer createConsumer(
              Processor processor, AbstractTwitterEndpoint endpoint, AbstractTwitterConsumerHandler handler)
              throws Exception {
          Consumer answer = new DefaultTwitterConsumer(endpoint, processor, handler);
          switch (endpoint.getEndpointType()) {
              case POLLING:
                  handler.setLastId(endpoint.getProperties().getSinceId());
                  endpoint.configureConsumer(answer);
                  break;
              case DIRECT:
                  endpoint.configureConsumer(answer);
                  break;
              default:
                  break;
          }
          return answer;
      }
  
      public static <T extends Enum<T>> T enumFromString(T[] values, String uri, T defaultValue) {
          for (int i = values.length - 1; i >= 0; i--) {
              if (values[i].name().equalsIgnoreCase(uri)) {
                  return values[i];
              }
          }
  
          return defaultValue;
      }
  }
  