292 lines
10 KiB
Java
292 lines
10 KiB
Java
package net.filebot.web;
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import static java.nio.charset.StandardCharsets.*;
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import static java.util.Collections.*;
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import static java.util.stream.Collectors.*;
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import static net.filebot.CachedResource.*;
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import static net.filebot.Logging.*;
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import static net.filebot.util.StringUtilities.*;
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import static net.filebot.util.XPathUtilities.*;
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import static net.filebot.web.EpisodeUtilities.*;
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import java.io.BufferedReader;
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import java.io.ByteArrayInputStream;
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import java.io.InputStreamReader;
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import java.net.URI;
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import java.net.URL;
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import java.util.AbstractMap.SimpleImmutableEntry;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import javax.swing.Icon;
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import org.jsoup.Jsoup;
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import org.w3c.dom.Document;
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import org.w3c.dom.Node;
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import net.filebot.Cache;
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import net.filebot.CacheType;
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import net.filebot.Resource;
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import net.filebot.ResourceManager;
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public class AnidbClient extends AbstractEpisodeListProvider implements ArtworkProvider {
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private static final FloodLimit REQUEST_LIMIT = new FloodLimit(1, 5, TimeUnit.SECONDS); // no more than 1 requests within a 5 second window
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private final String client;
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private final int clientver;
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public AnidbClient(String client, int clientver) {
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this.client = client;
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this.clientver = clientver;
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}
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@Override
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public String getIdentifier() {
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return "AniDB";
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}
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@Override
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public Icon getIcon() {
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return ResourceManager.getIcon("search.anidb");
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}
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@Override
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public boolean hasSeasonSupport() {
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return false;
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}
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@Override
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public SortOrder vetoRequestParameter(SortOrder order) {
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return order == SortOrder.Absolute || order == SortOrder.AbsoluteAirdate ? order : SortOrder.Absolute;
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}
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@Override
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protected Cache getCache(String section) {
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return Cache.getCache(getName() + "_" + section, CacheType.Weekly);
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}
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@Override
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public List<SearchResult> search(String query, Locale locale) throws Exception {
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// bypass automatic caching since search is based on locally cached data anyway
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return fetchSearchResult(query, locale);
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}
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// local AniDB search index
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private final Resource<LocalSearch<SearchResult>> localIndex = Resource.lazy(() -> new LocalSearch<SearchResult>(getAnimeTitles(), SearchResult::getEffectiveNames));
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@Override
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public List<SearchResult> fetchSearchResult(String query, Locale locale) throws Exception {
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return localIndex.get().search(query);
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}
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@Override
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protected SeriesData fetchSeriesData(SearchResult anime, SortOrder sortOrder, Locale locale) throws Exception {
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// get anime page as xml
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Document dom = getXmlResource(anime.getId());
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// check for errors (e.g. <error>Banned</error>)
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String error = selectString("/error", dom);
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if (error != null && error.length() > 0) {
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throw new IllegalStateException(String.format("%s error: %s", getName(), error));
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}
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// parse series info
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SeriesInfo seriesInfo = new SeriesInfo(this, sortOrder, locale, anime.getId(), SeriesInfo.TYPE_ANIME);
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seriesInfo.setAliasNames(anime.getAliasNames());
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// AniDB types: Movie, Music Video, Other, OVA, TV Series, TV Special, Web, unknown
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String animeType = selectString("//type", dom);
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if (animeType != null && animeType.matches("(?i:music.video|unkown)")) {
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return new SeriesData(seriesInfo, emptyList());
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}
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seriesInfo.setName(selectString("anime/titles/title[@type='main']", dom));
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seriesInfo.setRating(getDecimal(selectString("anime/ratings/permanent", dom)));
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seriesInfo.setRatingCount(matchInteger(getTextContent("anime/ratings/permanent/@count", dom)));
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seriesInfo.setStartDate(SimpleDate.parse(selectString("anime/startdate", dom)));
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// add categories ordered by weight as genres
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// * only use categories with weight >= 400
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// * sort by weight (descending)
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// * limit to 5 genres
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seriesInfo.setGenres(streamNodes("anime/categories/category", dom).map(categoryNode -> {
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String name = getTextContent("name", categoryNode);
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Integer weight = matchInteger(getAttribute("weight", categoryNode));
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return new SimpleImmutableEntry<String, Integer>(name, weight);
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}).filter(nw -> {
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return nw.getKey() != null && nw.getValue() != null && nw.getKey().length() > 0 && nw.getValue() >= 400;
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}).sorted((a, b) -> {
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return b.getValue().compareTo(a.getValue());
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}).map(it -> it.getKey()).limit(5).collect(Collectors.toList()));
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// parse episode data
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String animeTitle = selectString("anime/titles/title[@type='official' and @lang='" + getLanguageCode(locale) + "']", dom);
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if (animeTitle == null || animeTitle.length() == 0) {
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animeTitle = seriesInfo.getName();
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}
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List<Episode> episodes = new ArrayList<Episode>(25);
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for (Node node : selectNodes("anime/episodes/episode", dom)) {
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Node epno = getChild("epno", node);
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int number = Integer.parseInt(getTextContent(epno).replaceAll("\\D", ""));
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int type = Integer.parseInt(getAttribute("type", epno));
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if (type == 1 || type == 2) {
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Integer id = Integer.parseInt(getAttribute("id", node));
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SimpleDate airdate = SimpleDate.parse(getTextContent("airdate", node));
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String title = selectString(".//title[@lang='" + getLanguageCode(locale) + "']", node);
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if (title.isEmpty()) { // English language fall-back
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title = selectString(".//title[@lang='en']", node);
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}
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if (type == 1) {
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// adjust for forced absolute numbering (if possible)
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if (sortOrder == SortOrder.AbsoluteAirdate && airdate != null) {
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// use airdate as absolute episode number
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number = airdate.getYear() * 1_00_00 + airdate.getMonth() * 1_00 + airdate.getDay();
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}
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episodes.add(new Episode(animeTitle, null, number, title, number, null, airdate, id, new SeriesInfo(seriesInfo))); // normal episode, no seasons for anime
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} else {
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episodes.add(new Episode(animeTitle, null, null, title, null, number, airdate, id, new SeriesInfo(seriesInfo))); // special episode
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}
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}
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}
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// make sure episodes are in ordered correctly
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episodes.sort(episodeComparator());
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// sanity check
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if (episodes.isEmpty()) {
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debug.fine(format("No episode data: %s (%d) => %s", anime, anime.getId(), getResource(anime.getId())));
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}
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return new SeriesData(seriesInfo, episodes);
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}
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private Document getXmlResource(int aid) throws Exception {
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Cache cache = Cache.getCache(getName(), CacheType.Monthly);
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return cache.xml(aid, this::getResource).fetch(withPermit(fetchIfModified(), r -> REQUEST_LIMIT.acquirePermit())).expire(Cache.ONE_WEEK).get();
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}
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private URL getResource(int aid) throws Exception {
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// e.g. http://api.anidb.net:9001/httpapi?request=anime&client=filebot&clientver=1&protover=1&aid=4521
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return new URL("http://api.anidb.net:9001/httpapi?request=anime&client=" + client + "&clientver=" + clientver + "&protover=1&aid=" + aid);
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}
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@Override
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public URI getEpisodeListLink(SearchResult searchResult) {
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return URI.create("http://anidb.net/a" + searchResult.getId());
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}
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/**
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* Map locale to AniDB language code
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*/
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public String getLanguageCode(Locale locale) {
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// Note: ISO 639 is not a stable standard— some languages' codes have changed.
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// Locale's constructor recognizes both the new and the old codes for the languages whose codes have changed,
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// but this function always returns the old code.
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String code = locale.getLanguage();
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// Java language code => AniDB language code
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switch (code) {
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case "iw":
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return "he"; // Hebrew
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case "in":
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return "id"; // Indonesian
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}
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return code;
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}
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@Override
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public List<Artwork> getArtwork(int id, String category, Locale locale) throws Exception {
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Document dom = getXmlResource(id);
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String picture = selectString("anime/picture", dom);
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List<Artwork> artwork = new ArrayList<Artwork>(1);
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if (picture.length() > 0) {
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URL url = new URL("https://img7.anidb.net/pics/anime/" + picture);
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artwork.add(new Artwork(Stream.of("picture"), url, null, null));
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}
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return artwork;
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}
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/**
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* This method is overridden in {@link net.filebot.WebServices.AnidbClientWithLocalSearch} to fetch the Anime Index from our own host and not anidb.net
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*/
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public SearchResult[] getAnimeTitles() throws Exception {
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// get data file (unzip and cache)
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byte[] bytes = getCache("root").bytes("anime-titles.dat.gz", n -> new URL("http://anidb.net/api/" + n)).get();
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// <aid>|<type>|<language>|<title>
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// type: 1=primary title (one per anime), 2=synonyms (multiple per anime), 3=shorttitles (multiple per anime), 4=official title (one per language)
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Pattern pattern = Pattern.compile("^(?!#)(\\d+)[|](\\d)[|]([\\w-]+)[|](.+)$");
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List<String> languageOrder = new ArrayList<String>();
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languageOrder.add("x-jat");
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languageOrder.add("en");
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languageOrder.add("ja");
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List<String> typeOrder = new ArrayList<String>();
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typeOrder.add("1");
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typeOrder.add("4");
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typeOrder.add("2");
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typeOrder.add("3");
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// fetch data
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Map<Integer, List<Object[]>> entriesByAnime = new HashMap<Integer, List<Object[]>>(65536);
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try (BufferedReader text = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(bytes), UTF_8))) {
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text.lines().forEach(line -> {
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Matcher matcher = pattern.matcher(line);
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if (matcher.matches()) {
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int aid = Integer.parseInt(matcher.group(1));
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String type = matcher.group(2);
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String language = matcher.group(3);
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String title = matcher.group(4);
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if (aid > 0 && title.length() > 0 && typeOrder.contains(type) && languageOrder.contains(language)) {
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// resolve HTML entities
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title = Jsoup.parse(title).text();
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if (type.equals("3") && (title.length() < 5 || !Character.isUpperCase(title.charAt(0)) || Character.isUpperCase(title.charAt(title.length() - 1)))) {
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return;
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}
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entriesByAnime.computeIfAbsent(aid, k -> new ArrayList<Object[]>()).add(new Object[] { typeOrder.indexOf(type), languageOrder.indexOf(language), title });
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}
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}
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});
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}
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// build up a list of all possible AniDB search results
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return entriesByAnime.entrySet().stream().map(it -> {
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List<String> names = it.getValue().stream().sorted((a, b) -> {
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for (int i = 0; i < a.length; i++) {
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if (!a[i].equals(b[i])) {
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return ((Comparable) a[i]).compareTo(b[i]);
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}
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}
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return 0;
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}).map(n -> n[2].toString()).collect(toList());
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String primaryTitle = names.get(0);
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List<String> aliasNames = names.subList(1, names.size());
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return new SearchResult(it.getKey(), primaryTitle, aliasNames);
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}).toArray(SearchResult[]::new);
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}
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}
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