1 files changed, 84 insertions, 0 deletions
diff --git a/com/android/settingslib/core/instrumentation/LogWriter.java b/com/android/settingslib/core/instrumentation/LogWriter.java
new file mode 100644
index 00000000..4b9f5727
--- /dev/null
+++ b/com/android/settingslib/core/instrumentation/LogWriter.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 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.settingslib.core.instrumentation;
+
+import android.content.Context;
+import android.util.Pair;
+
+/**
+ * Generic log writer interface.
+ */
+public interface LogWriter {
+
+    /**
+     * Logs a visibility event when view becomes visible.
+     */
+    void visible(Context context, int source, int category);
+
+    /**
+     * Logs a visibility event when view becomes hidden.
+     */
+    void hidden(Context context, int category);
+
+    /**
+     * Logs a user action.
+     */
+    void action(int category, int value, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs a user action.
+     */
+    void action(int category, boolean value, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs an user action.
+     */
+    void actionWithSource(Context context, int source, int category);
+
+    /**
+     * Logs an user action.
+     * @deprecated use {@link #action(int, int, Pair[])}
+     */
+    @Deprecated
+    void action(Context context, int category, int value);
+
+    /**
+     * Logs an user action.
+     * @deprecated use {@link #action(int, boolean, Pair[])}
+     */
+    @Deprecated
+    void action(Context context, int category, boolean value);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category, String pkg, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs a count.
+     */
+    void count(Context context, String name, int value);
+
+    /**
+     * Logs a histogram event.
+     */
+    void histogram(Context context, String name, int bucket);
+}