Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 119 insertions, 0 deletions

diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/DefaultDownloaderFactory.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/DefaultDownloaderFactory.java
new file mode 100644
index 0000000000..6391af8a95
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/DefaultDownloaderFactory.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2018 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 android.net.Uri;
+import androidx.annotation.Nullable;
+import java.lang.reflect.Constructor;
+import java.util.List;
+
+/**
+ * Default {@link DownloaderFactory}, supporting creation of progressive, DASH, HLS and
+ * SmoothStreaming downloaders. Note that for the latter three, the corresponding library module
+ * must be built into the application.
+ */
+public class DefaultDownloaderFactory implements DownloaderFactory {
+
+  @Nullable private static final Constructor<? extends Downloader> DASH_DOWNLOADER_CONSTRUCTOR;
+  @Nullable private static final Constructor<? extends Downloader> HLS_DOWNLOADER_CONSTRUCTOR;
+  @Nullable private static final Constructor<? extends Downloader> SS_DOWNLOADER_CONSTRUCTOR;
+
+  static {
+    Constructor<? extends Downloader> dashDownloaderConstructor = null;
+    try {
+      // LINT.IfChange
+      dashDownloaderConstructor =
+          getDownloaderConstructor(
+              Class.forName("com.google.android.exoplayer2.source.dash.offline.DashDownloader"));
+      // LINT.ThenChange(../../../../../../../../proguard-rules.txt)
+    } catch (ClassNotFoundException e) {
+      // Expected if the app was built without the DASH module.
+    }
+    DASH_DOWNLOADER_CONSTRUCTOR = dashDownloaderConstructor;
+    Constructor<? extends Downloader> hlsDownloaderConstructor = null;
+    try {
+      // LINT.IfChange
+      hlsDownloaderConstructor =
+          getDownloaderConstructor(
+              Class.forName("com.google.android.exoplayer2.source.hls.offline.HlsDownloader"));
+      // LINT.ThenChange(../../../../../../../../proguard-rules.txt)
+    } catch (ClassNotFoundException e) {
+      // Expected if the app was built without the HLS module.
+    }
+    HLS_DOWNLOADER_CONSTRUCTOR = hlsDownloaderConstructor;
+    Constructor<? extends Downloader> ssDownloaderConstructor = null;
+    try {
+      // LINT.IfChange
+      ssDownloaderConstructor =
+          getDownloaderConstructor(
+              Class.forName(
+                  "com.google.android.exoplayer2.source.smoothstreaming.offline.SsDownloader"));
+      // LINT.ThenChange(../../../../../../../../proguard-rules.txt)
+    } catch (ClassNotFoundException e) {
+      // Expected if the app was built without the SmoothStreaming module.
+    }
+    SS_DOWNLOADER_CONSTRUCTOR = ssDownloaderConstructor;
+  }
+
+  private final DownloaderConstructorHelper downloaderConstructorHelper;
+
+  /** @param downloaderConstructorHelper A helper for instantiating downloaders. */
+  public DefaultDownloaderFactory(DownloaderConstructorHelper downloaderConstructorHelper) {
+    this.downloaderConstructorHelper = downloaderConstructorHelper;
+  }
+
+  @Override
+  public Downloader createDownloader(DownloadRequest request) {
+    switch (request.type) {
+      case DownloadRequest.TYPE_PROGRESSIVE:
+        return new ProgressiveDownloader(
+            request.uri, request.customCacheKey, downloaderConstructorHelper);
+      case DownloadRequest.TYPE_DASH:
+        return createDownloader(request, DASH_DOWNLOADER_CONSTRUCTOR);
+      case DownloadRequest.TYPE_HLS:
+        return createDownloader(request, HLS_DOWNLOADER_CONSTRUCTOR);
+      case DownloadRequest.TYPE_SS:
+        return createDownloader(request, SS_DOWNLOADER_CONSTRUCTOR);
+      default:
+        throw new IllegalArgumentException("Unsupported type: " + request.type);
+    }
+  }
+
+  private Downloader createDownloader(
+      DownloadRequest request, @Nullable Constructor<? extends Downloader> constructor) {
+    if (constructor == null) {
+      throw new IllegalStateException("Module missing for: " + request.type);
+    }
+    try {
+      return constructor.newInstance(request.uri, request.streamKeys, downloaderConstructorHelper);
+    } catch (Exception e) {
+      throw new RuntimeException("Failed to instantiate downloader for: " + request.type, e);
+    }
+  }
+
+  // LINT.IfChange
+  private static Constructor<? extends Downloader> getDownloaderConstructor(Class<?> clazz) {
+    try {
+      return clazz
+          .asSubclass(Downloader.class)
+          .getConstructor(Uri.class, List.class, DownloaderConstructorHelper.class);
+    } catch (NoSuchMethodException e) {
+      // The downloader is present, but the expected constructor is missing.
+      throw new RuntimeException("Downloader constructor missing", e);
+    }
+  }
+  // LINT.ThenChange(../../../../../../../../proguard-rules.txt)
+}