| /* |
| * 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 |
| * |
| * 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.streams.twitter.converter; |
| |
| import org.apache.streams.data.ActivityConverter; |
| import org.apache.streams.exceptions.ActivityConversionException; |
| import org.apache.streams.pojo.json.Activity; |
| import org.apache.streams.twitter.pojo.Retweet; |
| |
| import org.apache.commons.lang.NotImplementedException; |
| |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import static org.apache.streams.twitter.converter.util.TwitterActivityUtil.updateActivity; |
| |
| public class TwitterJsonRetweetActivityConverter implements ActivityConverter<Retweet>, Serializable { |
| |
| public static Class requiredClass = Retweet.class; |
| |
| @Override |
| public Class requiredClass() { |
| return requiredClass; |
| } |
| |
| private static TwitterJsonRetweetActivityConverter instance = new TwitterJsonRetweetActivityConverter(); |
| |
| public TwitterJsonRetweetActivityConverter getInstance() { |
| return instance; |
| } |
| |
| @Override |
| public String serializationFormat() { |
| return null; |
| } |
| |
| @Override |
| public Retweet fromActivity(Activity deserialized) throws ActivityConversionException { |
| throw new NotImplementedException(); |
| } |
| |
| @Override |
| public List<Retweet> fromActivityList(List<Activity> list) { |
| throw new NotImplementedException(); |
| } |
| |
| @Override |
| public List<Activity> toActivityList(Retweet retweet) throws ActivityConversionException { |
| |
| Activity activity = new Activity(); |
| updateActivity(retweet, activity); |
| |
| return Stream.of(activity).collect(Collectors.toList()); |
| } |
| |
| @Override |
| public List<Activity> toActivityList(List<Retweet> serializedList) { |
| List<Activity> result = new ArrayList<>(); |
| for ( Retweet item : serializedList ) { |
| try { |
| List<Activity> activities = toActivityList(item); |
| result.addAll(activities); |
| } catch (ActivityConversionException ex) { |
| // |
| } |
| } |
| return result; |
| } |
| } |