1 files changed, 87 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/upstream/cache/ContentMetadata.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/upstream/cache/ContentMetadata.java
new file mode 100644
index 0000000000..aa34823043
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/upstream/cache/ContentMetadata.java
@@ -0,0 +1,87 @@
+/*
+ * 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.upstream.cache;
+
+import android.net.Uri;
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+
+/**
+ * Interface for an immutable snapshot of keyed metadata.
+ */
+public interface ContentMetadata {
+
+  /**
+   * Prefix for custom metadata keys. Applications can use keys starting with this prefix without
+   * any risk of their keys colliding with ones defined by the ExoPlayer library.
+   */
+  @SuppressWarnings("unused")
+  String KEY_CUSTOM_PREFIX = "custom_";
+  /** Key for redirected uri (type: String). */
+  String KEY_REDIRECTED_URI = "exo_redir";
+  /** Key for content length in bytes (type: long). */
+  String KEY_CONTENT_LENGTH = "exo_len";
+
+  /**
+   * Returns a metadata value.
+   *
+   * @param key Key of the metadata to be returned.
+   * @param defaultValue Value to return if the metadata doesn't exist.
+   * @return The metadata value.
+   */
+  @Nullable
+  byte[] get(String key, @Nullable byte[] defaultValue);
+
+  /**
+   * Returns a metadata value.
+   *
+   * @param key Key of the metadata to be returned.
+   * @param defaultValue Value to return if the metadata doesn't exist.
+   * @return The metadata value.
+   */
+  @Nullable
+  String get(String key, @Nullable String defaultValue);
+
+  /**
+   * Returns a metadata value.
+   *
+   * @param key Key of the metadata to be returned.
+   * @param defaultValue Value to return if the metadata doesn't exist.
+   * @return The metadata value.
+   */
+  long get(String key, long defaultValue);
+
+  /** Returns whether the metadata is available. */
+  boolean contains(String key);
+
+  /**
+   * Returns the value stored under {@link #KEY_CONTENT_LENGTH}, or {@link C#LENGTH_UNSET} if not
+   * set.
+   */
+  static long getContentLength(ContentMetadata contentMetadata) {
+    return contentMetadata.get(KEY_CONTENT_LENGTH, C.LENGTH_UNSET);
+  }
+
+  /**
+   * Returns the value stored under {@link #KEY_REDIRECTED_URI} as a {@link Uri}, or {code null} if
+   * not set.
+   */
+  @Nullable
+  static Uri getRedirectedUri(ContentMetadata contentMetadata) {
+    String redirectedUri = contentMetadata.get(KEY_REDIRECTED_URI, (String) null);
+    return redirectedUri == null ? null : Uri.parse(redirectedUri);
+  }
+}