[media.ccc.de] Get conference name from API URL

Author: TobiGr

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

@@ -4,6 +4,7 @@
 import com.grack.nanojson.JsonObject;
 import com.grack.nanojson.JsonParser;
 import com.grack.nanojson.JsonParserException;
+
 import org.schabi.newpipe.extractor.Page;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.downloader.Downloader;
@@ -14,12 +15,16 @@
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
 
-import javax.annotation.Nonnull;
 import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.annotation.Nonnull;
 
 public class MediaCCCRecentKiosk extends KioskExtractor<StreamInfoItem> {
 
     private JsonObject doc;
+    private final Map<String, String> conferenceNames = new HashMap<>();
 
     public MediaCCCRecentKiosk(StreamingService streamingService, ListLinkHandler linkHandler, String kioskId) {
         super(streamingService, linkHandler, kioskId);
@@ -41,8 +46,9 @@ public void onFetchPage(@Nonnull Downloader downloader) throws IOException, Extr
     public InfoItemsPage<StreamInfoItem> getInitialPage() throws IOException, ExtractionException {
         final JsonArray events = doc.getArray("events");
         StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
+
         for (int i = 0; i < events.size(); i++) {
-            collector.commit(new MediaCCCRecentKioskExtractor(events.getObject(i)));
+            collector.commit(new MediaCCCRecentKioskExtractor(events.getObject(i), conferenceNames));
         }
         return new InfoItemsPage<>(collector, null);
     }

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

@@ -1,22 +1,34 @@
 package org.schabi.newpipe.extractor.services.media_ccc.extractors;
 
 import com.grack.nanojson.JsonObject;
+
+import org.schabi.newpipe.extractor.ServiceList;
+import org.schabi.newpipe.extractor.channel.ChannelExtractor;
+import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.localization.DateWrapper;
 import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCConferenceLinkHandlerFactory;
 import org.schabi.newpipe.extractor.stream.StreamInfoItemExtractor;
 import org.schabi.newpipe.extractor.stream.StreamType;
 
-import javax.annotation.Nullable;
+import java.io.IOException;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
+import java.util.Map;
+
+import javax.annotation.Nullable;
+
+import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 public class MediaCCCRecentKioskExtractor implements StreamInfoItemExtractor {
 
     private final JsonObject event;
+    private final Map<String, String> conferenceNames;
 
-    public MediaCCCRecentKioskExtractor(final JsonObject event) {
+    public MediaCCCRecentKioskExtractor(final JsonObject event,
+                                        final Map<String, String> conferenceNames) {
         this.event = event;
+        this.conferenceNames = conferenceNames;
     }
 
     @Override
@@ -56,7 +68,25 @@ public long getViewCount() throws ParsingException {
 
     @Override
     public String getUploaderName() throws ParsingException {
-        return "";
+        final String conferenceApiUrl = event.getString("conference_url");
+        if (isNullOrEmpty(conferenceApiUrl)) {
+            throw new ParsingException("conference url is empty");
+        }
+
+        if (conferenceNames.containsKey(conferenceApiUrl)) {
+            return conferenceNames.get(conferenceApiUrl);
+        }
+
+        // get conference name from API.
+        try {
+            ChannelExtractor extractor = ServiceList.MediaCCC.getChannelExtractor(
+                    new MediaCCCConferenceLinkHandlerFactory().fromUrl(conferenceApiUrl));
+            extractor.fetchPage();
+            conferenceNames.put(conferenceApiUrl, extractor.getName());
+            return extractor.getName();
+        } catch (IOException | ExtractionException e) {
+            throw new ParsingException("Could not get conference name from conference API URL", e);
+        }
     }
 
     @Override