import com.google.api.services.youtube.model.Channel; //导入依赖的package包/类
@Override
public Channel getChannelForUser(String userId)
{
	try
	{
		YouTube.Channels.List channels = getTubeService().channels().list("snippet");
		channels.setKey(getApiKey());
		channels.setForUsername(userId);
		ChannelListResponse channelListResponse = channels.execute();

		List<Channel> items = channelListResponse.getItems();

		return Check.isEmpty(items) ? null : items.get(0);
	}
	catch( Exception ex )
	{
		throw Throwables.propagate(ex);
	}
}
 

import com.google.api.services.youtube.model.Channel; //导入依赖的package包/类
@Override
public List<Channel> getChannels(List<String> channelIds)
{
	try
	{
		YouTube.Channels.List channels = getTubeService().channels().list("snippet");
		channels.setKey(getApiKey());
		channels.setId(Joiner.on(",").join(channelIds));
		ChannelListResponse channelListResponse = channels.execute();

		return channelListResponse.getItems();
	}
	catch( Exception ex )
	{
		throw Throwables.propagate(ex);
	}
}
 

import com.google.api.services.youtube.model.Channel; //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.Channel; //导入依赖的package包/类
/**
 * Gets the {@link Channel} reference for the own channel.
 * @param connection {@link YouTubeConnection} instance which stands for the
 * authorized youtube connection
 * @return {@list Channel} instance which can be used for creating requests
 * to the own channel
 * @throws IOException Can't connect to youtub or can't executing request.
 * @since 1.0
 */
public static Channel getMyChannel(final YouTubeConnection connection) throws
        IOException {
    final YouTube.Channels.List channelRequest = connection.getYouTube()
            .channels().list("contentDetails");
    channelRequest.setMine(Boolean.TRUE);
    channelRequest.setFields("items/contentDetails, items/id");
    channelRequest.setMaxResults(1L);
    final ChannelListResponse response = channelRequest.execute();

    return response.getItems().get(0);
}
 

import com.google.api.services.youtube.model.Channel; //导入依赖的package包/类
public YoutubeChannel(Channel c) {
    setId(Sources.YOUTUBE + '#' + c.getId());
    source = Sources.YOUTUBE;
    name = c.getSnippet().getTitle();
    description = c.getSnippet().getDescription();
    com.google.api.services.youtube.model.Thumbnail t = c.getSnippet().getThumbnails().getDefault();
    setAvatarBig(t.getUrl());
    ChannelStatistics s = c.getStatistics();
    if (s != null) {
        setNumFollowers(s.getSubscriberCount().intValue());
    }
    pageUrl = "https://www.youtube.com/channel/" + c.getId();
    numItems = s.getVideoCount().intValue();
    creationDate = new Date(c.getSnippet().getPublishedAt().getValue());
}
 

import com.google.api.services.youtube.model.Channel; //导入依赖的package包/类
@Override
public Channel getChannel(String channelId)
{
	List<Channel> channels = getChannels(Lists.newArrayList(channelId));
	return Check.isEmpty(channels) ? null : channels.get(0);
}
 

import com.google.api.services.youtube.model.Channel; //导入依赖的package包/类
public YoutubeVideo(com.google.api.services.youtube.model.Video v, Channel c) {
    this(v);
    setContributor(new YoutubeChannel(c));
}
 

import com.google.api.services.youtube.model.Channel; //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.Channel; //导入依赖的package包/类
Channel getChannel(String channelId); 

import com.google.api.services.youtube.model.Channel; //导入依赖的package包/类
Channel getChannelForUser(String userId); 

import com.google.api.services.youtube.model.Channel; //导入依赖的package包/类
List<Channel> getChannels(List<String> channelIds);