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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.tv.perf;
     18 
     19 import android.app.Application;
     20 import android.content.Context;
     21 
     22 /** Do nothing implementation of {@link PerformanceMonitor}. */
     23 public final class StubPerformanceMonitor implements PerformanceMonitor {
     24 
     25     private static final TimerEvent TIMER_EVENT = new TimerEvent() {};
     26 
     27     public static PerformanceMonitor initialize(Application app) {
     28         return new StubPerformanceMonitor();
     29     }
     30 
     31     @Override
     32     public void startMemoryMonitor() {}
     33 
     34     @Override
     35     public void recordMemory(String customEventName) {}
     36 
     37     @Override
     38     public void startGlobalTimer(String customEventName) {}
     39 
     40     @Override
     41     public void stopGlobalTimer(String customEventName) {}
     42 
     43     @Override
     44     public TimerEvent startTimer() {
     45         return TIMER_EVENT;
     46     }
     47 
     48     @Override
     49     public void stopTimer(TimerEvent event, String name) {}
     50 
     51     @Override
     52     public void startJankRecorder(String eventName) {}
     53 
     54     @Override
     55     public void stopJankRecorder(String eventName) {}
     56 
     57     @Override
     58     public boolean startPerformanceMonitorEventDebugActivity(Context context) {
     59         return false;
     60     }
     61 
     62     public static TimerEvent startBootstrapTimer() {
     63         return new TimerEvent() {};
     64     }
     65 }
     66