/*
* 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.youtube.serializer;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.google.api.client.util.DateTime;
import com.google.api.services.youtube.model.Thumbnail;
import com.google.api.services.youtube.model.ThumbnailDetails;
import com.google.api.services.youtube.model.Video;
import com.google.api.services.youtube.model.VideoSnippet;
import com.google.api.services.youtube.model.VideoStatistics;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
public class YoutubeVideoDeserializer extends JsonDeserializer<Video> {
private static final Logger LOGGER = LoggerFactory.getLogger(YoutubeVideoDeserializer.class);
/**
* Because the Youtube Video object contains complex objects within its hierarchy, we have to use
* a custom deserializer
*
* @param jsonParser jsonParser
* @param deserializationContext deserializationContext
* @return The deserialized {@link com.google.api.services.youtube.YouTube.Videos} object
* @throws java.io.IOException IOException
* @throws com.fasterxml.jackson.core.JsonProcessingException JsonProcessingException
*/
@Override
public Video deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
JsonNode node = jsonParser.getCodec().readTree(jsonParser);
Video video = new Video();
try {
video.setId(node.get("id").asText());
video.setEtag(node.get("etag").asText());
video.setKind(node.get("kind").asText());
video.setSnippet(buildSnippet(node));
video.setStatistics(buildStatistics(node));
} catch (Exception ex) {
LOGGER.error("Exception while trying to deserialize a Video object: {}", ex);
}
return video;
}
/**
* Given the raw JsonNode, construct a video snippet object.
* @param node JsonNode
* @return VideoSnippet
*/
private VideoSnippet buildSnippet(JsonNode node) {
VideoSnippet snippet = new VideoSnippet();
JsonNode snippetNode = node.get("snippet");
snippet.setChannelId(snippetNode.get("channelId").asText());
snippet.setChannelTitle(snippetNode.get("channelTitle").asText());
snippet.setDescription(snippetNode.get("description").asText());
snippet.setTitle(snippetNode.get("title").asText());
snippet.setPublishedAt(new DateTime(snippetNode.get("publishedAt").get("value").asLong()));
ThumbnailDetails thumbnailDetails = new ThumbnailDetails();
for (JsonNode t : snippetNode.get("thumbnails")) {
Thumbnail thumbnail = new Thumbnail();
thumbnail.setHeight(t.get("height").asLong());
thumbnail.setUrl(t.get("url").asText());
thumbnail.setWidth(t.get("width").asLong());
thumbnailDetails.setDefault(thumbnail);
}
snippet.setThumbnails(thumbnailDetails);
return snippet;
}
/**
* Given the raw JsonNode, construct a statistics object.
* @param node JsonNode
* @return VideoStatistics
*/
private VideoStatistics buildStatistics(JsonNode node) {
VideoStatistics statistics = new VideoStatistics();
JsonNode statisticsNode = node.get("statistics");
statistics.setCommentCount(statisticsNode.get("commentCount").bigIntegerValue());
statistics.setDislikeCount(statisticsNode.get("dislikeCount").bigIntegerValue());
statistics.setFavoriteCount(statisticsNode.get("favoriteCount").bigIntegerValue());
statistics.setLikeCount(statisticsNode.get("likeCount").bigIntegerValue());
statistics.setViewCount(statisticsNode.get("viewCount").bigIntegerValue());
return statistics;
}
}