issue/130272: make httpDataSourceFactory usage clear

Author: emakar

packages/video_player/video_player_android/android/src/main/java/io/flutter/plugins/videoplayer/VideoPlayer.java

@@ -62,7 +62,7 @@ final class VideoPlayer {
   private float restoreVolume = 0;
   private PlaybackParameters restorePlaybackParameters;
 
-  private DefaultHttpDataSource.Factory httpDataSourceFactory = new DefaultHttpDataSource.Factory();
+  private final DefaultHttpDataSource.Factory httpDataSourceFactory;
 
   VideoPlayer(
       Context context,
@@ -82,9 +82,10 @@ final class VideoPlayer {
             .setMimeType(mimeFromFormatHint(formatHint))
             .build();
 
-    buildHttpDataSourceFactory(httpHeaders);
+    httpDataSourceFactory = new DefaultHttpDataSource.Factory();
+    setupHttpDataSourceFactory(httpHeaders);
 
-    ExoPlayer exoPlayer = buildExoPlayer(context);
+    ExoPlayer exoPlayer = buildExoPlayer(context, httpDataSourceFactory);
 
     exoPlayer.setMediaItem(mediaItem);
     exoPlayer.prepare();
@@ -110,7 +111,7 @@ final class VideoPlayer {
   }
 
   @VisibleForTesting
-  public void buildHttpDataSourceFactory(@NonNull Map<String, String> httpHeaders) {
+  public void setupHttpDataSourceFactory(@NonNull Map<String, String> httpHeaders) {
     final boolean httpHeadersNotEmpty = !httpHeaders.isEmpty();
     final String userAgent =
         httpHeadersNotEmpty && httpHeaders.containsKey(USER_AGENT)
@@ -122,7 +123,7 @@ public void buildHttpDataSourceFactory(@NonNull Map<String, String> httpHeaders)
   }
 
   public void recreateSurface(Context context) {
-    ExoPlayer exoPlayer = buildExoPlayer(context);
+    ExoPlayer exoPlayer = buildExoPlayer(context, httpDataSourceFactory);
 
     exoPlayer.setMediaItem(mediaItem);
     exoPlayer.prepare();
@@ -155,15 +156,6 @@ public void pauseSurface() {
     isInitialized = false;
   }
 
-  @NonNull
-  private ExoPlayer buildExoPlayer(Context context) {
-    DataSource.Factory dataSourceFactory =
-        new DefaultDataSource.Factory(context, httpDataSourceFactory);
-    DefaultMediaSourceFactory mediaSourceFactory =
-        new DefaultMediaSourceFactory(context).setDataSourceFactory(dataSourceFactory);
-    return new ExoPlayer.Builder(context).setMediaSourceFactory(mediaSourceFactory).build();
-  }
-
   private void setUpVideoPlayer(ExoPlayer exoPlayer, QueuingEventSink eventSink) {
     this.exoPlayer = exoPlayer;
     this.eventSink = eventSink;
@@ -335,6 +327,16 @@ void dispose() {
     }
   }
 
+  @NonNull
+  private static ExoPlayer buildExoPlayer(
+      Context context, DataSource.Factory baseDataSourceFactory) {
+    DataSource.Factory dataSourceFactory =
+        new DefaultDataSource.Factory(context, baseDataSourceFactory);
+    DefaultMediaSourceFactory mediaSourceFactory =
+        new DefaultMediaSourceFactory(context).setDataSourceFactory(dataSourceFactory);
+    return new ExoPlayer.Builder(context).setMediaSourceFactory(mediaSourceFactory).build();
+  }
+
   @Nullable
   private static String mimeFromFormatHint(@Nullable String formatHint) {
     if (formatHint == null) {

packages/video_player/video_player_android/android/src/test/java/io/flutter/plugins/videoplayer/VideoPlayerTest.java

@@ -67,7 +67,7 @@ public void videoPlayer_buildsHttpDataSourceFactoryProperlyWhenHttpHeadersNull()
             fakeEventSink,
             httpDataSourceFactorySpy);
 
-    videoPlayer.buildHttpDataSourceFactory(new HashMap<>());
+    videoPlayer.setupHttpDataSourceFactory(new HashMap<>());
 
     verify(httpDataSourceFactorySpy).setUserAgent("ExoPlayer");
     verify(httpDataSourceFactorySpy).setAllowCrossProtocolRedirects(true);
@@ -93,7 +93,7 @@ public void videoPlayer_buildsHttpDataSourceFactoryProperlyWhenHttpHeadersNull()
           }
         };
 
-    videoPlayer.buildHttpDataSourceFactory(httpHeaders);
+    videoPlayer.setupHttpDataSourceFactory(httpHeaders);
 
     verify(httpDataSourceFactorySpy).setUserAgent("userAgent");
     verify(httpDataSourceFactorySpy).setAllowCrossProtocolRedirects(true);
@@ -118,7 +118,7 @@ public void videoPlayer_buildsHttpDataSourceFactoryProperlyWhenHttpHeadersNull()
           }
         };
 
-    videoPlayer.buildHttpDataSourceFactory(httpHeaders);
+    videoPlayer.setupHttpDataSourceFactory(httpHeaders);
 
     verify(httpDataSourceFactorySpy).setUserAgent("ExoPlayer");
     verify(httpDataSourceFactorySpy).setAllowCrossProtocolRedirects(true);