Default to respecting the DataSpec cache fragmentation flag

Issue: #4253
PiperOrigin-RevId: 230497544

library/core/src/main/java/com/google/android/exoplayer2/offline/DownloaderConstructorHelper.java

@@ -110,10 +110,8 @@ public final class DownloaderConstructorHelper {
             ? cacheReadDataSourceFactory
             : new FileDataSourceFactory();
     if (cacheWriteDataSinkFactory == null) {
-      CacheDataSinkFactory factory =
+      cacheWriteDataSinkFactory =
           new CacheDataSinkFactory(cache, CacheDataSink.DEFAULT_FRAGMENT_SIZE);
-      factory.experimental_setRespectCacheFragmentationFlag(true);
-      cacheWriteDataSinkFactory = factory;
     }
     onlineCacheDataSourceFactory =
         new CacheDataSourceFactory(

library/core/src/main/java/com/google/android/exoplayer2/upstream/cache/CacheDataSink.java

@@ -50,7 +50,6 @@ public final class CacheDataSink implements DataSink {
   private final int bufferSize;
 
   private boolean syncFileDescriptor;
-  private boolean respectCacheFragmentationFlag;
   private DataSpec dataSpec;
   private long dataSpecFragmentSize;
   private File file;
@@ -123,20 +122,6 @@ public final class CacheDataSink implements DataSink {
     this.syncFileDescriptor = syncFileDescriptor;
   }
 
-  /**
-   * Sets whether this instance respects the {@link DataSpec#FLAG_ALLOW_CACHE_FRAGMENTATION} flag.
-   * If set to {@code false} requests will always be fragmented. If set to {@code true} requests
-   * will be fragmented only if the flag is set.
-   *
-   * <p>This method is experimental, and will be renamed or removed in a future release.
-   *
-   * @param respectCacheFragmentationFlag Whether to respect the {@link
-   *     DataSpec#FLAG_ALLOW_CACHE_FRAGMENTATION} flag.
-   */
-  public void experimental_setRespectCacheFragmentationFlag(boolean respectCacheFragmentationFlag) {
-    this.respectCacheFragmentationFlag = respectCacheFragmentationFlag;
-  }
-
   @Override
   public void open(DataSpec dataSpec) throws CacheDataSinkException {
     if (dataSpec.length == C.LENGTH_UNSET
@@ -146,10 +131,7 @@ public final class CacheDataSink implements DataSink {
     }
     this.dataSpec = dataSpec;
     this.dataSpecFragmentSize =
-        !respectCacheFragmentationFlag
-                || dataSpec.isFlagSet(DataSpec.FLAG_ALLOW_CACHE_FRAGMENTATION)
-            ? fragmentSize
-            : Long.MAX_VALUE;
+        dataSpec.isFlagSet(DataSpec.FLAG_ALLOW_CACHE_FRAGMENTATION) ? fragmentSize : Long.MAX_VALUE;
     dataSpecBytesWritten = 0;
     try {
       openNextOutputStream();

library/core/src/main/java/com/google/android/exoplayer2/upstream/cache/CacheDataSinkFactory.java

@@ -27,7 +27,6 @@ public final class CacheDataSinkFactory implements DataSink.Factory {
   private final int bufferSize;
 
   private boolean syncFileDescriptor;
-  private boolean respectCacheFragmentationFlag;
 
   /** @see CacheDataSink#CacheDataSink(Cache, long) */
   public CacheDataSinkFactory(Cache cache, long fragmentSize) {
@@ -51,22 +50,10 @@ public final class CacheDataSinkFactory implements DataSink.Factory {
     return this;
   }
 
-  /**
-   * See {@link CacheDataSink#experimental_setRespectCacheFragmentationFlag(boolean)}.
-   *
-   * <p>This method is experimental, and will be renamed or removed in a future release.
-   */
-  public CacheDataSinkFactory experimental_setRespectCacheFragmentationFlag(
-      boolean respectCacheFragmentationFlag) {
-    this.respectCacheFragmentationFlag = respectCacheFragmentationFlag;
-    return this;
-  }
-
   @Override
   public DataSink createDataSink() {
     CacheDataSink dataSink = new CacheDataSink(cache, fragmentSize, bufferSize);
     dataSink.experimental_setSyncFileDescriptor(syncFileDescriptor);
-    dataSink.experimental_setRespectCacheFragmentationFlag(respectCacheFragmentationFlag);
     return dataSink;
   }
 }