[MediaCCC] Fix checkstyle issues

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/MediaCCCService.java

@@ -1,10 +1,13 @@
 package org.schabi.newpipe.extractor.services.media_ccc;
 
+import static org.schabi.newpipe.extractor.StreamingService.ServiceInfo.MediaCapability.AUDIO;
+import static org.schabi.newpipe.extractor.StreamingService.ServiceInfo.MediaCapability.VIDEO;
+import static java.util.Arrays.asList;
+
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.channel.ChannelExtractor;
 import org.schabi.newpipe.extractor.comments.CommentsExtractor;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
-import org.schabi.newpipe.extractor.kiosk.KioskExtractor;
 import org.schabi.newpipe.extractor.kiosk.KioskList;
 import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
 import org.schabi.newpipe.extractor.linkhandler.LinkHandlerFactory;
@@ -14,16 +17,24 @@ import org.schabi.newpipe.extractor.linkhandler.SearchQueryHandler;
 import org.schabi.newpipe.extractor.linkhandler.SearchQueryHandlerFactory;
 import org.schabi.newpipe.extractor.playlist.PlaylistExtractor;
 import org.schabi.newpipe.extractor.search.SearchExtractor;
-import org.schabi.newpipe.extractor.services.media_ccc.extractors.*;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCConferenceExtractor;
-import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.*;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCConferenceKiosk;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCLiveStreamExtractor;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCLiveStreamKiosk;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCParsingHelper;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCRecentKiosk;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCSearchExtractor;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCStreamExtractor;
+import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCConferenceLinkHandlerFactory;
+import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCConferencesListLinkHandlerFactory;
+import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCLiveListLinkHandlerFactory;
+import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCRecentListLinkHandlerFactory;
+import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory;
+import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCStreamLinkHandlerFactory;
 import org.schabi.newpipe.extractor.stream.StreamExtractor;
 import org.schabi.newpipe.extractor.subscription.SubscriptionExtractor;
 import org.schabi.newpipe.extractor.suggestion.SuggestionExtractor;
 
-import static java.util.Arrays.asList;
-import static org.schabi.newpipe.extractor.StreamingService.ServiceInfo.MediaCapability.AUDIO;
-import static org.schabi.newpipe.extractor.StreamingService.ServiceInfo.MediaCapability.VIDEO;
-
 public class MediaCCCService extends StreamingService {
     public MediaCCCService(final int id) {
         super(id, "media.ccc.de", asList(AUDIO, VIDEO));
@@ -79,42 +90,42 @@ public class MediaCCCService extends StreamingService {
 
     @Override
     public KioskList getKioskList() throws ExtractionException {
-        KioskList list = new KioskList(this);
+        final KioskList list = new KioskList(this);
 
         // add kiosks here e.g.:
         try {
-            list.addKioskEntry(new KioskList.KioskExtractorFactory() {
+            list.addKioskEntry(
-                @Override
+                    (streamingService, url, kioskId) -> new MediaCCCConferenceKiosk(
-                public KioskExtractor createNewKiosk(final StreamingService streamingService,
+                            MediaCCCService.this,
-                                                     final String url, final String kioskId)
+                            new MediaCCCConferencesListLinkHandlerFactory().fromUrl(url),
-                        throws ExtractionException {
+                            kioskId
-                    return new MediaCCCConferenceKiosk(MediaCCCService.this,
+                    ),
-                            new MediaCCCConferencesListLinkHandlerFactory().fromUrl(url), kioskId);
+                    new MediaCCCConferencesListLinkHandlerFactory(),
-                }
+                    "conferences"
-            }, new MediaCCCConferencesListLinkHandlerFactory(), "conferences");
+            );
 
-            list.addKioskEntry(new KioskList.KioskExtractorFactory() {
+            list.addKioskEntry(
-                @Override
+                    (streamingService, url, kioskId) -> new MediaCCCRecentKiosk(
-                public KioskExtractor createNewKiosk(final StreamingService streamingService,
+                            MediaCCCService.this,
-                                                     final String url, final String kioskId)
+                            new MediaCCCRecentListLinkHandlerFactory().fromUrl(url),
-                        throws ExtractionException {
+                            kioskId
-                    return new MediaCCCRecentKiosk(MediaCCCService.this,
+                    ),
-                            new MediaCCCRecentListLinkHandlerFactory().fromUrl(url), kioskId);
+                    new MediaCCCRecentListLinkHandlerFactory(),
-                }
+                    "recent"
-            }, new MediaCCCRecentListLinkHandlerFactory(), "recent");
+            );
 
-            list.addKioskEntry(new KioskList.KioskExtractorFactory() {
+            list.addKioskEntry(
-                @Override
+                    (streamingService, url, kioskId) -> new MediaCCCLiveStreamKiosk(
-                public KioskExtractor createNewKiosk(final StreamingService streamingService,
+                            MediaCCCService.this,
-                                                     final String url, final String kioskId)
+                            new MediaCCCLiveListLinkHandlerFactory().fromUrl(url),
-                        throws ExtractionException {
+                            kioskId
-                    return new MediaCCCLiveStreamKiosk(MediaCCCService.this,
+                    ),
-                            new MediaCCCLiveListLinkHandlerFactory().fromUrl(url), kioskId);
+                    new MediaCCCLiveListLinkHandlerFactory(),
-                }
+                    "live"
-            }, new MediaCCCLiveListLinkHandlerFactory(), "live");
+            );
 
             list.setDefaultKiosk("recent");
-        } catch (Exception e) {
+        } catch (final Exception e) {
             throw new ExtractionException(e);
         }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCConferenceExtractor.java

@@ -53,22 +53,22 @@ public class MediaCCCConferenceExtractor extends ChannelExtractor {
     }
 
     @Override
-    public String getParentChannelName() throws ParsingException {
+    public String getParentChannelName() {
         return "";
     }
 
     @Override
-    public String getParentChannelUrl() throws ParsingException {
+    public String getParentChannelUrl() {
         return "";
     }
 
     @Override
-    public String getParentChannelAvatarUrl() throws ParsingException {
+    public String getParentChannelAvatarUrl() {
         return "";
     }
 
     @Override
-    public boolean isVerified() throws ParsingException {
+    public boolean isVerified() {
         return false;
     }
 
@@ -91,10 +91,11 @@ public class MediaCCCConferenceExtractor extends ChannelExtractor {
     @Override
     public void onFetchPage(@Nonnull final Downloader downloader)
             throws IOException, ExtractionException {
-        final String conferenceUrl = MediaCCCConferenceLinkHandlerFactory.CONFERENCE_API_ENDPOINT + getId();
+        final String conferenceUrl
+                = MediaCCCConferenceLinkHandlerFactory.CONFERENCE_API_ENDPOINT + getId();
         try {
             conferenceData = JsonParser.object().from(downloader.get(conferenceUrl).responseBody());
-        } catch (JsonParserException jpe) {
+        } catch (final JsonParserException jpe) {
             throw new ExtractionException("Could not parse json returnd by url: " + conferenceUrl);
         }
     }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCConferenceKiosk.java

@@ -32,8 +32,8 @@ public class MediaCCCConferenceKiosk extends KioskExtractor<ChannelInfoItem> {
     @Nonnull
     @Override
     public InfoItemsPage<ChannelInfoItem> getInitialPage() {
-        JsonArray conferences = doc.getArray("conferences");
+        final JsonArray conferences = doc.getArray("conferences");
-        ChannelInfoItemsCollector collector = new ChannelInfoItemsCollector(getServiceId());
+        final ChannelInfoItemsCollector collector = new ChannelInfoItemsCollector(getServiceId());
         for (int i = 0; i < conferences.size(); i++) {
             collector.commit(new MediaCCCConferenceInfoItemExtractor(conferences.getObject(i)));
         }
@@ -54,7 +54,7 @@ public class MediaCCCConferenceKiosk extends KioskExtractor<ChannelInfoItem> {
                 .responseBody();
         try {
             doc = JsonParser.object().from(site);
-        } catch (JsonParserException jpe) {
+        } catch (final JsonParserException jpe) {
             throw new ExtractionException("Could not parse json.", jpe);
         }
     }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCLiveStreamExtractor.java

@@ -2,50 +2,51 @@ package org.schabi.newpipe.extractor.services.media_ccc.extractors;
 
 import com.grack.nanojson.JsonArray;
 import com.grack.nanojson.JsonObject;
+
 import org.schabi.newpipe.extractor.MediaFormat;
-import org.schabi.newpipe.extractor.MetaInfo;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.downloader.Downloader;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
-import org.schabi.newpipe.extractor.localization.DateWrapper;
+import org.schabi.newpipe.extractor.stream.AudioStream;
-import org.schabi.newpipe.extractor.stream.*;
+import org.schabi.newpipe.extractor.stream.Description;
+import org.schabi.newpipe.extractor.stream.StreamExtractor;
+import org.schabi.newpipe.extractor.stream.StreamType;
+import org.schabi.newpipe.extractor.stream.VideoStream;
 
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
-import java.util.Locale;
+
+import javax.annotation.Nonnull;
 
 public class MediaCCCLiveStreamExtractor extends StreamExtractor {
-    private JsonArray doc = null;
     private JsonObject conference = null;
     private String group = "";
     private JsonObject room = null;
 
-    public MediaCCCLiveStreamExtractor(StreamingService service, LinkHandler linkHandler) {
+    public MediaCCCLiveStreamExtractor(final StreamingService service,
+                                       final LinkHandler linkHandler) {
         super(service, linkHandler);
     }
 
     @Override
-    public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
+    public void onFetchPage(@Nonnull final Downloader downloader)
-        doc = MediaCCCParsingHelper.getLiveStreams(downloader, getExtractorLocalization());
+            throws IOException, ExtractionException {
+        final JsonArray doc =
+                MediaCCCParsingHelper.getLiveStreams(downloader, getExtractorLocalization());
         // find correct room
         for (int c = 0; c < doc.size(); c++) {
-            final JsonObject conference = doc.getObject(c);
+            conference = doc.getObject(c);
             final JsonArray groups = conference.getArray("groups");
             for (int g = 0; g < groups.size(); g++) {
-                final String group = groups.getObject(g).getString("group");
+                group = groups.getObject(g).getString("group");
                 final JsonArray rooms = groups.getObject(g).getArray("rooms");
                 for (int r = 0; r < rooms.size(); r++) {
-                    final JsonObject room = rooms.getObject(r);
+                    room = rooms.getObject(r);
-                    if (getId().equals(conference.getString("slug") + "/" + room.getString("slug"))) {
+                    if (getId().equals(
-                        this.conference = conference;
+                            conference.getString("slug") + "/" + room.getString("slug"))) {
-                        this.group = group;
-                        this.room = room;
                         return;
                     }
                 }
@@ -69,7 +70,8 @@ public class MediaCCCLiveStreamExtractor extends StreamExtractor {
     @Nonnull
     @Override
     public Description getDescription() throws ParsingException {
-        return new Description(conference.getString("description") + " - " + group, Description.PLAIN_TEXT);
+        return new Description(conference.getString("description")
+                + " - " + group, Description.PLAIN_TEXT);
     }
 
     @Override
@@ -93,12 +95,11 @@ public class MediaCCCLiveStreamExtractor extends StreamExtractor {
     @Override
     public String getHlsUrl() {
         // TODO: There are multiple HLS streams.
-        //       Make getHlsUrl() and getDashMpdUrl() return lists of VideoStreams, so the user can choose a resolution.
+        //       Make getHlsUrl() and getDashMpdUrl() return lists of VideoStreams,
+        //       so the user can choose a resolution.
         for (int s = 0; s < room.getArray("streams").size(); s++) {
             final JsonObject stream = room.getArray("streams").getObject(s);
             if (stream.getString("type").equals("video")) {
-                final String resolution = stream.getArray("videoSize").getInt(0) + "x"
-                        + stream.getArray("videoSize").getInt(1);
                 if (stream.has("hls")) {
                     return stream.getObject("urls").getObject("hls").getString("url");
                 }
@@ -115,7 +116,8 @@ public class MediaCCCLiveStreamExtractor extends StreamExtractor {
             if (stream.getString("type").equals("audio")) {
                 for (final String type : stream.getObject("urls").keySet()) {
                     final JsonObject url = stream.getObject("urls").getObject(type);
-                    audioStreams.add(new AudioStream(url.getString("url"), MediaFormat.getFromSuffix(type), -1));
+                    audioStreams.add(new AudioStream(url.getString("url"),
+                            MediaFormat.getFromSuffix(type), -1));
                 }
             }
         }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCLiveStreamKiosk.java

@@ -18,19 +18,22 @@ import java.io.IOException;
 public class MediaCCCLiveStreamKiosk extends KioskExtractor<StreamInfoItem> {
     private JsonArray doc;
 
-    public MediaCCCLiveStreamKiosk(StreamingService streamingService, ListLinkHandler linkHandler, String kioskId) {
+    public MediaCCCLiveStreamKiosk(final StreamingService streamingService,
+                                   final ListLinkHandler linkHandler,
+                                   final String kioskId) {
         super(streamingService, linkHandler, kioskId);
     }
 
     @Override
-    public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
+    public void onFetchPage(@Nonnull final Downloader downloader)
+            throws IOException, ExtractionException {
         doc = MediaCCCParsingHelper.getLiveStreams(downloader, getExtractorLocalization());
     }
 
     @Nonnull
     @Override
     public InfoItemsPage<StreamInfoItem> getInitialPage() throws IOException, ExtractionException {
-        StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
+        final StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
         for (int c = 0; c < doc.size(); c++) {
             final JsonObject conference = doc.getObject(c);
             final JsonArray groups = conference.getArray("groups");
@@ -48,7 +51,8 @@ public class MediaCCCLiveStreamKiosk extends KioskExtractor<StreamInfoItem> {
     }
 
     @Override
-    public InfoItemsPage<StreamInfoItem> getPage(Page page) throws IOException, ExtractionException {
+    public InfoItemsPage<StreamInfoItem> getPage(final Page page)
+            throws IOException, ExtractionException {
         return InfoItemsPage.emptyPage();
     }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCLiveStreamKioskExtractor.java

@@ -14,7 +14,8 @@ public class MediaCCCLiveStreamKioskExtractor implements StreamInfoItemExtractor
     private final String group;
     private final JsonObject roomInfo;
 
-    public MediaCCCLiveStreamKioskExtractor(final JsonObject conferenceInfo, final String group,
+    public MediaCCCLiveStreamKioskExtractor(final JsonObject conferenceInfo,
+                                            final String group,
                                             final JsonObject roomInfo) {
         this.conferenceInfo = conferenceInfo;
         this.group = group;
@@ -39,7 +40,7 @@ public class MediaCCCLiveStreamKioskExtractor implements StreamInfoItemExtractor
     @Override
     public StreamType getStreamType() throws ParsingException {
         boolean isVideo = false;
-        for (Object stream : roomInfo.getArray("streams")) {
+        for (final Object stream : roomInfo.getArray("streams")) {
             if ("video".equals(((JsonObject) stream).getString("type"))) {
                 isVideo = true;
                 break;
@@ -65,7 +66,8 @@ public class MediaCCCLiveStreamKioskExtractor implements StreamInfoItemExtractor
 
     @Override
     public String getUploaderName() throws ParsingException {
-        return conferenceInfo.getString("conference") + " - " + group + " - " + roomInfo.getString("display");
+        return conferenceInfo.getString("conference") + " - " + group
+                + " - " + roomInfo.getString("display");
     }
 
     @Override

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCParsingHelper.java

@@ -15,15 +15,17 @@ import java.time.format.DateTimeParseException;
 import java.util.regex.Pattern;
 
 public final class MediaCCCParsingHelper {
-    private static final Pattern LIVE_STREAM_ID_PATTERN = Pattern.compile("\\w+/\\w+"); // {conference_slug}/{room_slug}
+    // {conference_slug}/{room_slug}
+    private static final Pattern LIVE_STREAM_ID_PATTERN = Pattern.compile("\\w+/\\w+");
     private static JsonArray liveStreams = null;
 
     private MediaCCCParsingHelper() { }
 
-    public static OffsetDateTime parseDateFrom(final String textualUploadDate) throws ParsingException {
+    public static OffsetDateTime parseDateFrom(final String textualUploadDate)
+            throws ParsingException {
         try {
             return OffsetDateTime.parse(textualUploadDate);
-        } catch (DateTimeParseException e) {
+        } catch (final DateTimeParseException e) {
             throw new ParsingException("Could not parse date: \"" + textualUploadDate + "\"", e);
         }
     }
@@ -31,8 +33,8 @@ public final class MediaCCCParsingHelper {
     /**
      * Check whether an id is a live stream id
      * @param id the {@code id} to check
-     * @return returns {@code true} if the {@code id} is formatted like {@code {conference_slug}/{room_slug}};
+     * @return returns {@code true} if the {@code id} is formatted like
-     *         {@code false} otherwise
+     *         {@code {conference_slug}/{room_slug}}; {@code false} otherwise
      */
     public static boolean isLiveStreamId(final String id) {
         return LIVE_STREAM_ID_PATTERN.matcher(id).find();
@@ -40,24 +42,28 @@ public final class MediaCCCParsingHelper {
 
     /**
      * Get currently available live streams from
-     * <a href="https://streaming.media.ccc.de/streams/v2.json">https://streaming.media.ccc.de/streams/v2.json</a>.
+     * <a href="https://streaming.media.ccc.de/streams/v2.json">
+     *     https://streaming.media.ccc.de/streams/v2.json</a>.
      * Use this method to cache requests, because they can get quite big.
      * TODO: implement better caching policy (max-age: 3 min)
      * @param downloader The downloader to use for making the request
      * @param localization The localization to be used. Will most likely be ignored.
-     * @return {@link JsonArray} containing current conferences and info about their rooms and streams.
+     * @return {@link JsonArray} containing current conferences and info about their rooms and
-     * @throws ExtractionException if the data could not be fetched or the retrieved data could not be parsed to a {@link JsonArray}
+     *         streams.
+     * @throws ExtractionException if the data could not be fetched or the retrieved data could not
+     *                             be parsed to a {@link JsonArray}
      */
-    public static JsonArray getLiveStreams(final Downloader downloader, final Localization localization)
+    public static JsonArray getLiveStreams(final Downloader downloader,
+                                           final Localization localization)
             throws ExtractionException {
         if (liveStreams == null) {
             try {
                 final String site = downloader.get("https://streaming.media.ccc.de/streams/v2.json",
                         localization).responseBody();
                 liveStreams = JsonParser.array().from(site);
-            } catch (IOException | ReCaptchaException e) {
+            } catch (final IOException | ReCaptchaException e) {
                 throw new ExtractionException("Could not get live stream JSON.", e);
-            } catch (JsonParserException e) {
+            } catch (final JsonParserException e) {
                 throw new ExtractionException("Could not parse JSON.", e);
             }
         }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCRecentKiosk.java

@@ -22,17 +22,20 @@ public class MediaCCCRecentKiosk extends KioskExtractor<StreamInfoItem> {
 
     private JsonObject doc;
 
-    public MediaCCCRecentKiosk(StreamingService streamingService, ListLinkHandler linkHandler, String kioskId) {
+    public MediaCCCRecentKiosk(final StreamingService streamingService,
+                               final ListLinkHandler linkHandler,
+                               final String kioskId) {
         super(streamingService, linkHandler, kioskId);
     }
 
     @Override
-    public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
+    public void onFetchPage(@Nonnull final Downloader downloader)
+            throws IOException, ExtractionException {
         final String site = downloader.get("https://api.media.ccc.de/public/events/recent",
                 getExtractorLocalization()).responseBody();
         try {
             doc = JsonParser.object().from(site);
-        } catch (JsonParserException jpe) {
+        } catch (final JsonParserException jpe) {
             throw new ExtractionException("Could not parse json.", jpe);
         }
     }
@@ -48,7 +51,8 @@ public class MediaCCCRecentKiosk extends KioskExtractor<StreamInfoItem> {
                 streamInfoItem -> streamInfoItem.getUploadDate().offsetDateTime());
         comparator = comparator.reversed();
 
-        StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId(), comparator);
+        final StreamInfoItemsCollector collector
+                = new StreamInfoItemsCollector(getServiceId(), comparator);
         for (int i = 0; i < events.size(); i++) {
             collector.commit(new MediaCCCRecentKioskExtractor(events.getObject(i)));
         }
@@ -56,7 +60,8 @@ public class MediaCCCRecentKiosk extends KioskExtractor<StreamInfoItem> {
     }
 
     @Override
-    public InfoItemsPage<StreamInfoItem> getPage(Page page) throws IOException, ExtractionException {
+    public InfoItemsPage<StreamInfoItem> getPage(final Page page)
+            throws IOException, ExtractionException {
         return InfoItemsPage.emptyPage();
     }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCRecentKioskExtractor.java

@@ -46,8 +46,8 @@ public class MediaCCCRecentKioskExtractor implements StreamInfoItemExtractor {
 
     @Override
     public long getDuration() throws ParsingException {
-        // duration and length have the same value
+        // duration and length have the same value, see
-        // see https://github.com/voc/voctoweb/blob/master/app/views/public/shared/_event.json.jbuilder
+        // https://github.com/voc/voctoweb/blob/master/app/views/public/shared/_event.json.jbuilder
         return event.getInt("duration");
     }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCSearchExtractor.java

@@ -1,5 +1,9 @@
 package org.schabi.newpipe.extractor.services.media_ccc.extractors;
 
+import static org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory.ALL;
+import static org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory.CONFERENCES;
+import static org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory.EVENTS;
+
 import com.grack.nanojson.JsonArray;
 import com.grack.nanojson.JsonObject;
 import com.grack.nanojson.JsonParser;
@@ -13,7 +17,6 @@ import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
 import org.schabi.newpipe.extractor.channel.ChannelInfoItemExtractor;
 import org.schabi.newpipe.extractor.downloader.Downloader;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
-import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.linkhandler.SearchQueryHandler;
 import org.schabi.newpipe.extractor.MultiInfoItemsCollector;
 import org.schabi.newpipe.extractor.search.SearchExtractor;
@@ -26,10 +29,6 @@ import java.util.List;
 
 import javax.annotation.Nonnull;
 
-import static org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory.ALL;
-import static org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory.CONFERENCES;
-import static org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory.EVENTS;
-
 public class MediaCCCSearchExtractor extends SearchExtractor {
     private JsonObject doc;
     private MediaCCCConferenceKiosk conferenceKiosk;
@@ -41,7 +40,7 @@ public class MediaCCCSearchExtractor extends SearchExtractor {
             conferenceKiosk = new MediaCCCConferenceKiosk(service,
                     new MediaCCCConferencesListLinkHandlerFactory().fromId("conferences"),
                     "conferences");
-        } catch (Exception e) {
+        } catch (final Exception e) {
             e.printStackTrace();
         }
     }
@@ -79,7 +78,7 @@ public class MediaCCCSearchExtractor extends SearchExtractor {
         if (getLinkHandler().getContentFilters().contains(EVENTS)
                 || getLinkHandler().getContentFilters().contains(ALL)
                 || getLinkHandler().getContentFilters().isEmpty()) {
-            JsonArray events = doc.getArray("events");
+            final JsonArray events = doc.getArray("events");
             for (int i = 0; i < events.size(); i++) {
                 // Ensure only uploaded talks are shown in the search results.
                 // If the release date is null, the talk has not been held or uploaded yet
@@ -109,7 +108,7 @@ public class MediaCCCSearchExtractor extends SearchExtractor {
             site = downloader.get(url, getExtractorLocalization()).responseBody();
             try {
                 doc = JsonParser.object().from(site);
-            } catch (JsonParserException jpe) {
+            } catch (final JsonParserException jpe) {
                 throw new ExtractionException("Could not parse JSON.", jpe);
             }
         }
@@ -143,7 +142,7 @@ public class MediaCCCSearchExtractor extends SearchExtractor {
                     }
 
                     @Override
-                    public boolean isVerified() throws ParsingException {
+                    public boolean isVerified() {
                         return false;
                     }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/MediaCCCStreamExtractor.java

@@ -4,8 +4,8 @@ import com.grack.nanojson.JsonArray;
 import com.grack.nanojson.JsonObject;
 import com.grack.nanojson.JsonParser;
 import com.grack.nanojson.JsonParserException;
+
 import org.schabi.newpipe.extractor.MediaFormat;
-import org.schabi.newpipe.extractor.MetaInfo;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.downloader.Downloader;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
@@ -15,17 +15,21 @@ import org.schabi.newpipe.extractor.localization.DateWrapper;
 import org.schabi.newpipe.extractor.localization.Localization;
 import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCConferenceLinkHandlerFactory;
 import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCStreamLinkHandlerFactory;
-import org.schabi.newpipe.extractor.stream.*;
+import org.schabi.newpipe.extractor.stream.AudioStream;
+import org.schabi.newpipe.extractor.stream.Description;
+import org.schabi.newpipe.extractor.stream.StreamExtractor;
+import org.schabi.newpipe.extractor.stream.StreamType;
+import org.schabi.newpipe.extractor.stream.VideoStream;
 import org.schabi.newpipe.extractor.utils.JsonUtils;
 
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 
+import javax.annotation.Nonnull;
+
 public class MediaCCCStreamExtractor extends StreamExtractor {
     private JsonObject data;
     private JsonObject conferenceData;
@@ -158,7 +162,7 @@ public class MediaCCCStreamExtractor extends StreamExtractor {
             data = JsonParser.object().from(downloader.get(videoUrl).responseBody());
             conferenceData = JsonParser.object()
                     .from(downloader.get(data.getString("conference_url")).responseBody());
-        } catch (JsonParserException jpe) {
+        } catch (final JsonParserException jpe) {
             throw new ExtractionException("Could not parse json returned by url: " + videoUrl, jpe);
         }
     }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/extractors/infoItems/MediaCCCStreamInfoItemExtractor.java

@@ -10,7 +10,7 @@ import org.schabi.newpipe.extractor.stream.StreamType;
 import javax.annotation.Nullable;
 
 public class MediaCCCStreamInfoItemExtractor implements StreamInfoItemExtractor {
-    private JsonObject event;
+    private final JsonObject event;
 
     public MediaCCCStreamInfoItemExtractor(final JsonObject event) {
         this.event = event;

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/linkHandler/MediaCCCConferenceLinkHandlerFactory.java

@@ -7,9 +7,12 @@ import org.schabi.newpipe.extractor.utils.Parser;
 import java.util.List;
 
 public class MediaCCCConferenceLinkHandlerFactory extends ListLinkHandlerFactory {
-    public static final String CONFERENCE_API_ENDPOINT = "https://api.media.ccc.de/public/conferences/";
+    public static final String CONFERENCE_API_ENDPOINT
+            = "https://api.media.ccc.de/public/conferences/";
     public static final String CONFERENCE_PATH = "https://media.ccc.de/c/";
-    private static final String ID_PATTERN = "(?:(?:(?:api\\.)?media\\.ccc\\.de/public/conferences/)|(?:media\\.ccc\\.de/[bc]/))([^/?&#]*)";
+    private static final String ID_PATTERN
+            = "(?:(?:(?:api\\.)?media\\.ccc\\.de/public/conferences/)"
+            + "|(?:media\\.ccc\\.de/[bc]/))([^/?&#]*)";
 
     @Override
     public String getUrl(final String id,
@@ -27,7 +30,7 @@ public class MediaCCCConferenceLinkHandlerFactory extends ListLinkHandlerFactory
     public boolean onAcceptUrl(final String url) {
         try {
             return getId(url) != null;
-        } catch (ParsingException e) {
+        } catch (final ParsingException e) {
             return false;
         }
     }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/linkHandler/MediaCCCLiveListLinkHandlerFactory.java

@@ -7,20 +7,22 @@ import java.util.List;
 import java.util.regex.Pattern;
 
 public class MediaCCCLiveListLinkHandlerFactory extends ListLinkHandlerFactory {
-    private static final String streamPattern = "^(?:https?://)?media\\.ccc\\.de/live$";
+    private static final String STREAM_PATTERN = "^(?:https?://)?media\\.ccc\\.de/live$";
 
     @Override
-    public String getId(String url) throws ParsingException {
+    public String getId(final String url) throws ParsingException {
         return "live";
     }
 
     @Override
-    public boolean onAcceptUrl(String url) throws ParsingException {
+    public boolean onAcceptUrl(final String url) throws ParsingException {
-        return Pattern.matches(streamPattern, url);
+        return Pattern.matches(STREAM_PATTERN, url);
     }
 
     @Override
-    public String getUrl(String id, List<String> contentFilter, String sortFilter) throws ParsingException {
+    public String getUrl(final String id,
+                         final List<String> contentFilter,
+                         final String sortFilter) throws ParsingException {
         // FIXME: wrong URL; should be https://streaming.media.ccc.de/{conference_slug}/{room_slug}
         return "https://media.ccc.de/live";
     }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/linkHandler/MediaCCCLiveStreamLinkHandlerFactory.java

@@ -7,7 +7,9 @@ import org.schabi.newpipe.extractor.utils.Parser;
 public class MediaCCCLiveStreamLinkHandlerFactory extends LinkHandlerFactory {
     public static final String VIDEO_API_ENDPOINT = "https://api.media.ccc.de/public/events/";
     private static final String VIDEO_PATH = "https://streaming.media.ccc.de/v/";
-    private static final String ID_PATTERN = "(?:(?:(?:api\\.)?media\\.ccc\\.de/public/events/)|(?:media\\.ccc\\.de/v/))([^/?&#]*)";
+    private static final String ID_PATTERN
+            = "(?:(?:(?:api\\.)?media\\.ccc\\.de/public/events/)"
+            + "|(?:media\\.ccc\\.de/v/))([^/?&#]*)";
 
     @Override
     public String getId(final String url) throws ParsingException {
@@ -23,7 +25,7 @@ public class MediaCCCLiveStreamLinkHandlerFactory extends LinkHandlerFactory {
     public boolean onAcceptUrl(final String url) {
         try {
             return getId(url) != null;
-        } catch (ParsingException e) {
+        } catch (final ParsingException e) {
             return false;
         }
     }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/linkHandler/MediaCCCRecentListLinkHandlerFactory.java

@@ -6,20 +6,22 @@ import java.util.List;
 import java.util.regex.Pattern;
 
 public class MediaCCCRecentListLinkHandlerFactory extends ListLinkHandlerFactory {
-    private static final String pattern = "^(https?://)?media\\.ccc\\.de/recent/?$";
+    private static final String PATTERN = "^(https?://)?media\\.ccc\\.de/recent/?$";
 
     @Override
-    public String getId(String url) {
+    public String getId(final String url) {
         return "recent";
     }
 
     @Override
-    public boolean onAcceptUrl(String url) {
+    public boolean onAcceptUrl(final String url) {
-        return Pattern.matches(pattern, url);
+        return Pattern.matches(PATTERN, url);
     }
 
     @Override
-    public String getUrl(String id, List<String> contentFilter, String sortFilter) {
+    public String getUrl(final String id,
+                         final List<String> contentFilter,
+                         final String sortFilter) {
         return "https://media.ccc.de/recent";
     }
 }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/linkHandler/MediaCCCSearchQueryHandlerFactory.java

@@ -34,7 +34,7 @@ public class MediaCCCSearchQueryHandlerFactory extends SearchQueryHandlerFactory
         try {
             return "https://media.ccc.de/public/events/search?q="
                     + URLEncoder.encode(query, UTF_8);
-        } catch (UnsupportedEncodingException e) {
+        } catch (final UnsupportedEncodingException e) {
             throw new ParsingException("Could not create search string with query: " + query, e);
         }
     }

extractor/src/main/java/org/schabi/newpipe/extractor/services/media_ccc/linkHandler/MediaCCCStreamLinkHandlerFactory.java

@@ -8,19 +8,21 @@ import org.schabi.newpipe.extractor.utils.Parser;
 public class MediaCCCStreamLinkHandlerFactory extends LinkHandlerFactory {
     public static final String VIDEO_API_ENDPOINT = "https://api.media.ccc.de/public/events/";
     private static final String VIDEO_PATH = "https://media.ccc.de/v/";
-    private static final String RECORDING_ID_PATTERN = "(?:(?:(?:api\\.)?media\\.ccc\\.de/public/events/)|(?:media\\.ccc\\.de/v/))([^/?&#]*)";
+    private static final String RECORDING_ID_PATTERN
-    private static final String LIVE_STREAM_API_ENDPOINT = "https://streaming.media.ccc.de/streams/v2.json";
+            = "(?:(?:(?:api\\.)?media\\.ccc\\.de/public/events/)"
+            + "|(?:media\\.ccc\\.de/v/))([^/?&#]*)";
     private static final String LIVE_STREAM_PATH = "https://streaming.media.ccc.de/";
-    private static final String LIVE_STREAM_ID_PATTERN = "streaming\\.media\\.ccc\\.de\\/(\\w+\\/\\w+)";
+    private static final String LIVE_STREAM_ID_PATTERN
+            = "streaming\\.media\\.ccc\\.de\\/(\\w+\\/\\w+)";
 
     @Override
     public String getId(final String url) throws ParsingException {
         String streamId = null;
         try {
             streamId = Parser.matchGroup1(LIVE_STREAM_ID_PATTERN, url);
-        } catch (Parser.RegexException ignored) {
+        } catch (final Parser.RegexException ignored) {
-
         }
+
         if (streamId == null) {
             return Parser.matchGroup1(RECORDING_ID_PATTERN, url);
         }
@@ -39,7 +41,7 @@ public class MediaCCCStreamLinkHandlerFactory extends LinkHandlerFactory {
     public boolean onAcceptUrl(final String url) {
         try {
             return getId(url) != null;
-        } catch (ParsingException e) {
+        } catch (final ParsingException e) {
             return false;
         }
     }