The Tor Browser: mobile/android/thirdparty/com/squareup/picasso/Stats.java@6474c204b198 (annotated)

mobile/android/thirdparty/com/squareup/picasso/Stats.java@6474c204b198 (annotated)

mobile/android/thirdparty/com/squareup/picasso/Stats.java

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /*
  * Copyright (C) 2013 Square, Inc.
  *
  * 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.squareup.picasso;
 import android.graphics.Bitmap;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Looper;
 import android.os.Message;
 import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
 class Stats {
   private static final int CACHE_HIT = 0;
   private static final int CACHE_MISS = 1;
   private static final int BITMAP_DECODE_FINISHED = 2;
   private static final int BITMAP_TRANSFORMED_FINISHED = 3;
   private static final String STATS_THREAD_NAME = Utils.THREAD_PREFIX + "Stats";
   final HandlerThread statsThread;
   final Cache cache;
   final Handler handler;
   long cacheHits;
   long cacheMisses;
   long totalOriginalBitmapSize;
   long totalTransformedBitmapSize;
   long averageOriginalBitmapSize;
   long averageTransformedBitmapSize;
   int originalBitmapCount;
   int transformedBitmapCount;
   Stats(Cache cache) {
     this.cache = cache;
     this.statsThread = new HandlerThread(STATS_THREAD_NAME, THREAD_PRIORITY_BACKGROUND);
     this.statsThread.start();
     this.handler = new StatsHandler(statsThread.getLooper(), this);
   }
   void dispatchBitmapDecoded(Bitmap bitmap) {
     processBitmap(bitmap, BITMAP_DECODE_FINISHED);
   }
   void dispatchBitmapTransformed(Bitmap bitmap) {
     processBitmap(bitmap, BITMAP_TRANSFORMED_FINISHED);
   }
   void dispatchCacheHit() {
     handler.sendEmptyMessage(CACHE_HIT);
   }
   void dispatchCacheMiss() {
     handler.sendEmptyMessage(CACHE_MISS);
   }
   void shutdown() {
     statsThread.quit();
   }
   void performCacheHit() {
     cacheHits++;
   }
   void performCacheMiss() {
     cacheMisses++;
   }
   void performBitmapDecoded(long size) {
     originalBitmapCount++;
     totalOriginalBitmapSize += size;
     averageOriginalBitmapSize = getAverage(originalBitmapCount, totalOriginalBitmapSize);
   }
   void performBitmapTransformed(long size) {
     transformedBitmapCount++;
     totalTransformedBitmapSize += size;
     averageTransformedBitmapSize = getAverage(originalBitmapCount, totalTransformedBitmapSize);
   }
   synchronized StatsSnapshot createSnapshot() {
     return new StatsSnapshot(cache.maxSize(), cache.size(), cacheHits, cacheMisses,
         totalOriginalBitmapSize, totalTransformedBitmapSize, averageOriginalBitmapSize,
         averageTransformedBitmapSize, originalBitmapCount, transformedBitmapCount,
         System.currentTimeMillis());
   }
   private void processBitmap(Bitmap bitmap, int what) {
     // Never send bitmaps to the handler as they could be recycled before we process them.
     int bitmapSize = Utils.getBitmapBytes(bitmap);
     handler.sendMessage(handler.obtainMessage(what, bitmapSize, 0));
   }
   private static long getAverage(int count, long totalSize) {
     return totalSize / count;
   }
   private static class StatsHandler extends Handler {
     private final Stats stats;
     public StatsHandler(Looper looper, Stats stats) {
       super(looper);
       this.stats = stats;
     }
     @Override public void handleMessage(final Message msg) {
       switch (msg.what) {
         case CACHE_HIT:
           stats.performCacheHit();
           break;
         case CACHE_MISS:
           stats.performCacheMiss();
           break;
         case BITMAP_DECODE_FINISHED:
           stats.performBitmapDecoded(msg.arg1);
           break;
         case BITMAP_TRANSFORMED_FINISHED:
           stats.performBitmapTransformed(msg.arg1);
           break;
         default:
           Picasso.HANDLER.post(new Runnable() {
             @Override public void run() {
               throw new AssertionError("Unhandled stats message." + msg.what);
             }
           });
       }
     }
   }
 }

The Tor Browser / annotate

mobile/android/thirdparty/com/squareup/picasso/Stats.java@6474c204b198 (annotated)

mobile/android/thirdparty/com/squareup/picasso/Stats.java