1 files changed, 60 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/Downloader.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/Downloader.java
new file mode 100644
index 0000000000..894d908e72
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/Downloader.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.mozilla.thirdparty.com.google.android.exoplayer2.offline;
+
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+import java.io.IOException;
+
+/** Downloads and removes a piece of content. */
+public interface Downloader {
+
+  /** Receives progress updates during download operations. */
+  interface ProgressListener {
+
+    /**
+     * Called when progress is made during a download operation.
+     *
+     * @param contentLength The length of the content in bytes, or {@link C#LENGTH_UNSET} if
+     *     unknown.
+     * @param bytesDownloaded The number of bytes that have been downloaded.
+     * @param percentDownloaded The percentage of the content that has been downloaded, or {@link
+     *     C#PERCENTAGE_UNSET}.
+     */
+    void onProgress(long contentLength, long bytesDownloaded, float percentDownloaded);
+  }
+
+  /**
+   * Downloads the content.
+   *
+   * @param progressListener A listener to receive progress updates, or {@code null}.
+   * @throws DownloadException Thrown if the content cannot be downloaded.
+   * @throws InterruptedException If the thread has been interrupted.
+   * @throws IOException Thrown when there is an io error while downloading.
+   */
+  void download(@Nullable ProgressListener progressListener)
+      throws InterruptedException, IOException;
+
+  /** Cancels the download operation and prevents future download operations from running. */
+  void cancel();
+
+  /**
+   * Removes the content.
+   *
+   * @throws InterruptedException Thrown if the thread was interrupted.
+   */
+  void remove() throws InterruptedException;
+}