Use suggested try-if code style

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java

@@ -108,15 +108,14 @@ public class YoutubePlaylistExtractor extends PlaylistExtractor {
 
         if (url == null) {
             try {
-                return initialData.getObject("microformat").getObject("microformatDataRenderer").getObject("thumbnail")
+                url = initialData.getObject("microformat").getObject("microformatDataRenderer").getObject("thumbnail")
                         .getArray("thumbnails").getObject(0).getString("url");
             } catch (Exception ignored) {}
+
+            if (url == null) throw new ParsingException("Could not get playlist thumbnail");
         }
 
-        if (url != null && !url.isEmpty()) {
-            return fixThumbnailUrl(url);
-        }
-        throw new ParsingException("Could not get playlist thumbnail");
+        return fixThumbnailUrl(url);
     }
 
     @Override

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java

@@ -116,16 +116,20 @@ public class YoutubeStreamExtractor extends StreamExtractor {
     public String getName() throws ParsingException {
         assertPageFetched();
         String title = null;
+
         try {
             title = getTextFromObject(getVideoPrimaryInfoRenderer().getObject("title"));
         } catch (Exception ignored) {}
+
         if (title == null) {
             try {
                 title = playerResponse.getObject("videoDetails").getString("title");
             } catch (Exception ignored) {}
+
+            if (title == null) throw new ParsingException("Could not get name");
         }
-        if (title != null) return title;
-        throw new ParsingException("Could not get name");
+
+        return title;
     }
 
     @Override
@@ -259,17 +263,21 @@ public class YoutubeStreamExtractor extends StreamExtractor {
     public long getViewCount() throws ParsingException {
         assertPageFetched();
         String views = null;
+
         try {
             views = getTextFromObject(getVideoPrimaryInfoRenderer().getObject("viewCount")
                     .getObject("videoViewCountRenderer").getObject("viewCount"));
         } catch (Exception ignored) {}
+
         if (views == null) {
             try {
                 views = playerResponse.getObject("videoDetails").getString("viewCount");
             } catch (Exception ignored) {}
+
+            if (views == null) throw new ParsingException("Could not get view count");
         }
-        if (views != null) return Long.parseLong(Utils.removeNonDigitCharacters(views));
-        throw new ParsingException("Could not get view count");
+
+        return Long.parseLong(Utils.removeNonDigitCharacters(views));
     }
 
     @Override
@@ -340,17 +348,21 @@ public class YoutubeStreamExtractor extends StreamExtractor {
     public String getUploaderName() throws ParsingException {
         assertPageFetched();
         String uploaderName = null;
+
         try {
             uploaderName = getTextFromObject(getVideoSecondaryInfoRenderer().getObject("owner")
                     .getObject("videoOwnerRenderer").getObject("title"));
         } catch (Exception ignored) {}
+
         if (uploaderName == null) {
             try {
                 uploaderName = playerResponse.getObject("videoDetails").getString("author");
             } catch (Exception ignored) {}
+
+            if (uploaderName == null) throw new ParsingException("Could not get uploader name");
         }
-        if (uploaderName != null) return uploaderName;
-        throw new ParsingException("Could not get uploader name");
+
+        return uploaderName;
     }
 
     @Nonnull
@@ -910,9 +922,7 @@ public class YoutubeStreamExtractor extends StreamExtractor {
 
                         urlAndItags.put(streamUrl, itagItem);
                     }
-                } catch (UnsupportedEncodingException ignored) {
-
-                }
+                } catch (UnsupportedEncodingException ignored) {}
             }
         }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamInfoItemExtractor.java

@@ -87,10 +87,13 @@ public class YoutubeStreamInfoItemExtractor implements StreamInfoItemExtractor {
     @Override
     public long getDuration() throws ParsingException {
         if (getStreamType() == StreamType.LIVE_STREAM) return -1;
+
         String duration = null;
+
         try {
             duration = getTextFromObject(videoInfo.getObject("lengthText"));
         } catch (Exception ignored) {}
+
         if (duration == null) {
             try {
                 for (Object thumbnailOverlay : videoInfo.getArray("thumbnailOverlays")) {
@@ -100,58 +103,64 @@ public class YoutubeStreamInfoItemExtractor implements StreamInfoItemExtractor {
                     }
                 }
             } catch (Exception ignored) {}
+
+            if (duration == null) throw new ParsingException("Could not get duration");
         }
-        if (duration != null) return YoutubeParsingHelper.parseDurationString(duration);
-        throw new ParsingException("Could not get duration");
+
+        return YoutubeParsingHelper.parseDurationString(duration);
     }
 
     @Override
     public String getUploaderName() throws ParsingException {
         String name = null;
+
         try {
             name = getTextFromObject(videoInfo.getObject("longBylineText"));
         } catch (Exception ignored) {}
+
         if (name == null) {
             try {
                 name = getTextFromObject(videoInfo.getObject("ownerText"));
             } catch (Exception ignored) {}
+
+            if (name == null) {
+                try {
+                    name = getTextFromObject(videoInfo.getObject("shortBylineText"));
+                } catch (Exception ignored) {}
+
+                if (name == null) throw new ParsingException("Could not get uploader name");
+            }
         }
-        if (name == null) {
-            try {
-                name = getTextFromObject(videoInfo.getObject("shortBylineText"));
-            } catch (Exception ignored) {}
-        }
-        if (name != null && !name.isEmpty()) return name;
-        throw new ParsingException("Could not get uploader name");
+
+        return name;
     }
 
     @Override
     public String getUploaderUrl() throws ParsingException {
+        String url = null;
+
         try {
-            String url = null;
+            url = getUrlFromNavigationEndpoint(videoInfo.getObject("longBylineText")
+                    .getArray("runs").getObject(0).getObject("navigationEndpoint"));
+        } catch (Exception ignored) {}
+
+        if (url == null) {
             try {
-                url = getUrlFromNavigationEndpoint(videoInfo.getObject("longBylineText")
+                url = getUrlFromNavigationEndpoint(videoInfo.getObject("ownerText")
                         .getArray("runs").getObject(0).getObject("navigationEndpoint"));
             } catch (Exception ignored) {}
-            if (url == null) {
-                try {
-                    url = getUrlFromNavigationEndpoint(videoInfo.getObject("ownerText")
-                            .getArray("runs").getObject(0).getObject("navigationEndpoint"));
-                } catch (Exception ignored) {}
-            }
+
             if (url == null) {
                 try {
                     url = getUrlFromNavigationEndpoint(videoInfo.getObject("shortBylineText")
                             .getArray("runs").getObject(0).getObject("navigationEndpoint"));
                 } catch (Exception ignored) {}
+
+                if (url == null) throw new ParsingException("Could not get uploader url");
             }
-            if (url == null || url.isEmpty()) {
-                throw new IllegalArgumentException("is empty");
-            }
-            return url;
-        } catch (Exception e) {
-            throw new ParsingException("Could not get uploader url");
         }
+
+        return url;
     }
 
     @Nullable

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelperTest.java

@@ -6,6 +6,8 @@ import org.schabi.newpipe.DownloaderTestImpl;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeParsingHelper;
 
+import java.io.IOException;
+
 import static org.junit.Assert.assertTrue;
 
 public class YoutubeParsingHelperTest {
@@ -15,7 +17,7 @@ public class YoutubeParsingHelperTest {
     }
 
     @Test
-    public void testIsHardcodedClientVersionValid() {
+    public void testIsHardcodedClientVersionValid() throws IOException {
         assertTrue("Hardcoded client version is not valid anymore",
                 YoutubeParsingHelper.isHardcodedClientVersionValid());
     }