import com.google.api.services.youtube.model.Thumbnail; //导入依赖的package包/类
private static void prettyPrint(Iterator<SearchResult> iteratorSearchResults, String query) {
//
//        "   First " + NUMBER_OF_VIDEOS_RETURNED + " videos for search on \"" + query + "\".");
//
//        if (!iteratorSearchResults.hasNext()) {
//            System.out.println(" There aren't any results for your query.");
//        }

        while (iteratorSearchResults.hasNext()) {

            SearchResult singleVideo = iteratorSearchResults.next();
            ResourceId rId = singleVideo.getId();

            // Confirm that the result represents a video. Otherwise, the
            // item will not contain a video ID.
            if (rId.getKind().equals("youtube#video")) {
                Thumbnail thumbnail = singleVideo.getSnippet().getThumbnails().getDefault();

                System.out.println(" Video Id" + rId.getVideoId());
                System.out.println(" Title: " + singleVideo.getSnippet().getTitle());
                System.out.println(" Thumbnail: " + thumbnail.getUrl());
                System.out.println("\n-------------------------------------------------------------\n");
            }
        }
    }
 

import com.google.api.services.youtube.model.Thumbnail; //导入依赖的package包/类
private String thumbnailURL(ThumbnailDetails details) {
  String result = null;

  if (details != null) {
    Thumbnail thumbnail = details.getMaxres();

    // is this necessary?  not sure
    if (thumbnail == null) {
      thumbnail = details.getHigh();
    }

    if (thumbnail == null) {
      thumbnail = details.getDefault();
    }

    if (thumbnail != null) {
      result = thumbnail.getUrl();
    }
  }

  return result;
}
 

import com.google.api.services.youtube.model.Thumbnail; //导入依赖的package包/类
@Override
protected List<Attachment> createAttachments(SectionInfo info)
{
	List<Attachment> attachments = Lists.newArrayList();
	List<String> videoIds = Lists.newArrayList(results.getSelectedValuesAsStrings(info));
	List<Video> videos = google.getVideos(videoIds);

	for( Video v : videos )
	{
		CustomAttachment a = new CustomAttachment();

		Channel channel = google.getChannel(v.getSnippet().getChannelId());
		a.setType(YoutubeUtils.ATTACHMENT_TYPE);

		Thumbnail defaultThumb = v.getSnippet().getThumbnails().getDefault();
		a.setData(YoutubeUtils.PROPERTY_THUMB_URL, defaultThumb.getUrl());
		a.setThumbnail(defaultThumb.getUrl());

		a.setData(YoutubeUtils.PROPERTY_PLAY_URL, "//www.youtube.com/v/" + v.getId());

		a.setData(YoutubeUtils.PROPERTY_ID, v.getId());
		a.setData(YoutubeUtils.PROPERTY_DURATION, v.getContentDetails().getDuration());
		a.setData(YoutubeUtils.PROPERTY_AUTHOR, channel.getSnippet().getTitle());
		DateTime uploaded = v.getSnippet().getPublishedAt();
		if( uploaded != null )
		{
			a.setData(YoutubeUtils.PROPERTY_DATE, uploaded.getValue());
		}
		String title = v.getSnippet().getTitle();
		a.setData(YoutubeUtils.PROPERTY_TITLE, title);
		a.setDescription(title);

		attachments.add(a);
	}
	return attachments;
}
 

import com.google.api.services.youtube.model.Thumbnail; //导入依赖的package包/类
public YoutubeVideo(com.google.api.services.youtube.model.Video v) {
    
	setId(Sources.YOUTUBE + '#' + v.getId());
    
    setSource(Sources.YOUTUBE);
    
    title = v.getSnippet().getTitle();
    
    description = v.getSnippet().getDescription();
    
    creationDate = new Date(v.getSnippet().getPublishedAt().getValue());
    
    crawlDate = new Date();
    
    VideoStatistics statistics = v.getStatistics();
    if (statistics != null) {
    	if(statistics.getFavoriteCount() != null) {
    		numLikes = statistics.getFavoriteCount().intValue();
    	}
        if(statistics.getViewCount() != null) {
        	numViews = statistics.getViewCount().intValue();
        }
        if(statistics.getCommentCount() != null) {
        	numComments = statistics.getCommentCount().intValue();
        }
    }
    
    VideoContentDetails details = v.getContentDetails();
    if (details != null) {
        quality = details.getDefinition();
    }
    
    VideoSnippet snippet = v.getSnippet();
    Thumbnail t = snippet.getThumbnails().getHigh();
    
    setThumbnail(t.getUrl());
    
    setWidth(t.getWidth().intValue());
    
    setHeight(t.getHeight().intValue());
    
    url = "https://www.youtube.com/watch?v=" + v.getId();
    
    webPageUrl = url;
    
    UserAccount channel = new YoutubeChannel();
    
    channel.setId(Sources.YOUTUBE + '#' + snippet.getChannelId());
    channel.setSource(Sources.YOUTUBE);
    channel.setUserId(snippet.getChannelId());
    channel.setName(snippet.getChannelTitle());
    channel.setPageUrl("https://www.youtube.com/channel/" + snippet.getChannelId());
    channel.setDescription(snippet.getDescription());
    setContributor(channel);
}
 

import com.google.api.services.youtube.model.Thumbnail; //导入依赖的package包/类
@Override
public Favicon fetch(Feed feed) {
	String url = feed.getUrl();

	if (!url.toLowerCase().contains("youtube.com/feeds/videos.xml")) {
		return null;
	}

	String googleAuthKey = config.getApplicationSettings().getGoogleAuthKey();
	if (googleAuthKey == null) {
		log.debug("no google auth key configured");
		return null;
	}

	byte[] bytes = null;
	String contentType = null;
	try {
		List<NameValuePair> params = URLEncodedUtils.parse(url.substring(url.indexOf("?") + 1), StandardCharsets.UTF_8);
		Optional<NameValuePair> userId = params.stream().filter(nvp -> nvp.getName().equalsIgnoreCase("user")).findFirst();
		Optional<NameValuePair> channelId = params.stream().filter(nvp -> nvp.getName().equalsIgnoreCase("channel_id")).findFirst();
		if (!userId.isPresent() && !channelId.isPresent()) {
			return null;
		}

		YouTube youtube = new YouTube.Builder(new NetHttpTransport(), JacksonFactory.getDefaultInstance(),
				new HttpRequestInitializer() {
					@Override
					public void initialize(HttpRequest request) throws IOException {
					}
				}).setApplicationName("CommaFeed").build();

		YouTube.Channels.List list = youtube.channels().list("snippet");
		list.setKey(googleAuthKey);
		if (userId.isPresent()) {
			list.setForUsername(userId.get().getValue());
		} else {
			list.setId(channelId.get().getValue());
		}

		log.debug("contacting youtube api");
		ChannelListResponse response = list.execute();
		if (response.getItems().isEmpty()) {
			log.debug("youtube api returned no items");
			return null;
		}

		Channel channel = response.getItems().get(0);
		Thumbnail thumbnail = channel.getSnippet().getThumbnails().getDefault();

		log.debug("fetching favicon");
		HttpResult iconResult = getter.getBinary(thumbnail.getUrl(), TIMEOUT);
		bytes = iconResult.getContent();
		contentType = iconResult.getContentType();
	} catch (Exception e) {
		log.debug("Failed to retrieve YouTube icon", e);
	}

	if (!isValidIconResponse(bytes, contentType)) {
		return null;
	}
	return new Favicon(bytes, contentType);
}
 

import com.google.api.services.youtube.model.Thumbnail; //导入依赖的package包/类
public static String getChannelIcon(String channelId) throws IOException {
	YouTube.Channels.List channels = youtube.channels().list("snippet, statistics");
	channels.setId(channelId);

	ChannelListResponse channelResponse = channels.execute();
	
	Thumbnail thumbnail = (Thumbnail) channelResponse.getItems().get(0).getSnippet().getThumbnails().get("default");

	return thumbnail.getUrl();
}