1 files changed, 63 insertions, 0 deletions
diff --git a/common/src/com/android/tv/common/util/NetworkTrafficTags.java b/common/src/com/android/tv/common/util/NetworkTrafficTags.java
new file mode 100644
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--- /dev/null
+++ b/common/src/com/android/tv/common/util/NetworkTrafficTags.java
@@ -0,0 +1,63 @@
+/*
+ * 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 com.android.tv.common.util;
+
+import android.net.TrafficStats;
+import android.support.annotation.NonNull;
+import java.util.concurrent.Executor;
+
+/** Constants for tagging network traffic in the Live channels app. */
+public final class NetworkTrafficTags {
+
+    public static final int DEFAULT_LIVE_CHANNELS = 1;
+    public static final int LOGO_FETCHER = 2;
+    public static final int HDHOMERUN = 3;
+    public static final int EPG_FETCH = 4;
+
+    /**
+     * An executor which simply wraps a provided delegate executor, but calls {@link
+     * TrafficStats#setThreadStatsTag(int)} before executing any task.
+     */
+    public static class TrafficStatsTaggingExecutor implements Executor {
+        private final Executor delegateExecutor;
+        private final int tag;
+
+        public TrafficStatsTaggingExecutor(Executor delegateExecutor, int tag) {
+            this.delegateExecutor = delegateExecutor;
+            this.tag = tag;
+        }
+
+        @Override
+        public void execute(final @NonNull Runnable command) {
+            // TODO(b/62038127): robolectric does not support lamdas in unbundled apps
+            delegateExecutor.execute(
+                    new Runnable() {
+                        @Override
+                        public void run() {
+                            TrafficStats.setThreadStatsTag(tag);
+                            try {
+                                command.run();
+                            } finally {
+                                TrafficStats.clearThreadStatsTag();
+                            }
+                        }
+                    });
+        }
+    }
+
+    private NetworkTrafficTags() {}
+}