Refactored YT-like stream link handlers and fixed tests

Also uses parameterized tests now

Author: litetex

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/invidious/linkHandler/InvidiousStreamLinkHandlerFactory.java

@@ -8,16 +8,24 @@ public class InvidiousStreamLinkHandlerFactory extends YoutubeLikeStreamLinkHand
         implements InvidiousLinkHandlerFactory {
 
     protected final String baseUrl;
+    protected final InvidiousPlaylistLinkHandlerFactory playlistLinkHandlerFactory;
 
     public InvidiousStreamLinkHandlerFactory(final InvidiousService service) {
-        this.baseUrl = service.getInstance().getUrl();
+        baseUrl = service.getInstance().getUrl();
+        playlistLinkHandlerFactory =
+                (InvidiousPlaylistLinkHandlerFactory) service.getPlaylistLHFactory();
     }
 
     @Override
     public String getInvidiousBaseUrl() {
         return baseUrl;
     }
 
+    @Override
+    protected boolean isPlaylistUrl(final String url) {
+        return playlistLinkHandlerFactory.onAcceptUrl(url);
+    }
+
     @Override
     public String getUrl(final String id) throws ParsingException {
         return baseUrl + "/watch?v=" + id;

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/shared/linkHandler/YoutubeLikeStreamLinkHandlerFactory.java

@@ -8,7 +8,6 @@
 import org.schabi.newpipe.extractor.exceptions.FoundAdException;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.linkhandler.LinkHandlerFactory;
-import org.schabi.newpipe.extractor.services.youtube.youtube.linkHandler.YoutubePlaylistLinkHandlerFactory;
 import org.schabi.newpipe.extractor.utils.Utils;
 
 import java.net.MalformedURLException;
@@ -32,11 +31,12 @@ public abstract class YoutubeLikeStreamLinkHandlerFactory extends LinkHandlerFac
 
     @Nullable
     private static String extractId(@Nullable final String id) {
-        if (id != null) {
-            final Matcher m = YOUTUBE_VIDEO_ID_REGEX_PATTERN.matcher(id);
-            return m.find() ? m.group(1) : null;
+        if (id == null) {
+            return null;
         }
-        return null;
+
+        final Matcher m = YOUTUBE_VIDEO_ID_REGEX_PATTERN.matcher(id);
+        return m.find() ? m.group(1) : null;
     }
 
     private static String assertIsId(@Nullable final String id) throws ParsingException {
@@ -85,17 +85,16 @@ public String getId(final String theUrlString)
             path = path.substring(1);
         }
 
-        if (!Utils.isHTTP(url) || !(isSupportedYouTubeLikeHost(url))
-        ) {
+        if (!Utils.isHTTP(url) || !isSupportedYouTubeLikeHost(url)) {
             if ("googleads.g.doubleclick.net".equalsIgnoreCase(host)) {
                 throw new FoundAdException("Error found ad: " + urlString);
             }
 
             throw new ParsingException("The url is not a Youtube-URL");
         }
 
-        if (YoutubePlaylistLinkHandlerFactory.getInstance().acceptUrl(urlString)) {
-            throw new ParsingException("Can't find handler for url: " + urlString);
+        if (isPlaylistUrl(urlString)) {
+            throw new ParsingException("This url is a playlist url: " + urlString);
         }
 
         if (isYoutubeURL(url) || isInvidiousUrl(url) || isHooktubeURL(url)) {
@@ -156,6 +155,8 @@ public String getId(final String theUrlString)
         throw new ParsingException("Error no suitable url: " + urlString);
     }
 
+    protected abstract boolean isPlaylistUrl(String url);
+
     @Override
     public boolean onAcceptUrl(final String url) throws FoundAdException {
         try {

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/youtube/linkHandler/YoutubeStreamLinkHandlerFactory.java

@@ -31,12 +31,17 @@ public final class YoutubeStreamLinkHandlerFactory extends YoutubeLikeStreamLink
     private YoutubeStreamLinkHandlerFactory() {
     }
 
-    public static YoutubeStreamLinkHandlerFactory getInstance() {
-        return INSTANCE;
+    @Override
+    protected boolean isPlaylistUrl(final String url) {
+        return YoutubePlaylistLinkHandlerFactory.getInstance().onAcceptUrl(url);
     }
 
     @Override
     public String getUrl(final String id) {
         return "https://www.youtube.com/watch?v=" + id;
     }
+
+    public static YoutubeStreamLinkHandlerFactory getInstance() {
+        return INSTANCE;
+    }
 }