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comparison: mobile/android/thirdparty/com/squareup/picasso/Stats.java
mobile/android/thirdparty/com/squareup/picasso/Stats.java
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| -1:000000000000 | 0:cc63b517ac45 |
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| 1 /* | |
| 2 * Copyright (C) 2013 Square, Inc. | |
| 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 package com.squareup.picasso; | |
| 17 | |
| 18 import android.graphics.Bitmap; | |
| 19 import android.os.Handler; | |
| 20 import android.os.HandlerThread; | |
| 21 import android.os.Looper; | |
| 22 import android.os.Message; | |
| 23 | |
| 24 import static android.os.Process.THREAD_PRIORITY_BACKGROUND; | |
| 25 | |
| 26 class Stats { | |
| 27 private static final int CACHE_HIT = 0; | |
| 28 private static final int CACHE_MISS = 1; | |
| 29 private static final int BITMAP_DECODE_FINISHED = 2; | |
| 30 private static final int BITMAP_TRANSFORMED_FINISHED = 3; | |
| 31 | |
| 32 private static final String STATS_THREAD_NAME = Utils.THREAD_PREFIX + "Stats"; | |
| 33 | |
| 34 final HandlerThread statsThread; | |
| 35 final Cache cache; | |
| 36 final Handler handler; | |
| 37 | |
| 38 long cacheHits; | |
| 39 long cacheMisses; | |
| 40 long totalOriginalBitmapSize; | |
| 41 long totalTransformedBitmapSize; | |
| 42 long averageOriginalBitmapSize; | |
| 43 long averageTransformedBitmapSize; | |
| 44 int originalBitmapCount; | |
| 45 int transformedBitmapCount; | |
| 46 | |
| 47 Stats(Cache cache) { | |
| 48 this.cache = cache; | |
| 49 this.statsThread = new HandlerThread(STATS_THREAD_NAME, THREAD_PRIORITY_BACKGROUND); | |
| 50 this.statsThread.start(); | |
| 51 this.handler = new StatsHandler(statsThread.getLooper(), this); | |
| 52 } | |
| 53 | |
| 54 void dispatchBitmapDecoded(Bitmap bitmap) { | |
| 55 processBitmap(bitmap, BITMAP_DECODE_FINISHED); | |
| 56 } | |
| 57 | |
| 58 void dispatchBitmapTransformed(Bitmap bitmap) { | |
| 59 processBitmap(bitmap, BITMAP_TRANSFORMED_FINISHED); | |
| 60 } | |
| 61 | |
| 62 void dispatchCacheHit() { | |
| 63 handler.sendEmptyMessage(CACHE_HIT); | |
| 64 } | |
| 65 | |
| 66 void dispatchCacheMiss() { | |
| 67 handler.sendEmptyMessage(CACHE_MISS); | |
| 68 } | |
| 69 | |
| 70 void shutdown() { | |
| 71 statsThread.quit(); | |
| 72 } | |
| 73 | |
| 74 void performCacheHit() { | |
| 75 cacheHits++; | |
| 76 } | |
| 77 | |
| 78 void performCacheMiss() { | |
| 79 cacheMisses++; | |
| 80 } | |
| 81 | |
| 82 void performBitmapDecoded(long size) { | |
| 83 originalBitmapCount++; | |
| 84 totalOriginalBitmapSize += size; | |
| 85 averageOriginalBitmapSize = getAverage(originalBitmapCount, totalOriginalBitmapSize); | |
| 86 } | |
| 87 | |
| 88 void performBitmapTransformed(long size) { | |
| 89 transformedBitmapCount++; | |
| 90 totalTransformedBitmapSize += size; | |
| 91 averageTransformedBitmapSize = getAverage(originalBitmapCount, totalTransformedBitmapSize); | |
| 92 } | |
| 93 | |
| 94 synchronized StatsSnapshot createSnapshot() { | |
| 95 return new StatsSnapshot(cache.maxSize(), cache.size(), cacheHits, cacheMisses, | |
| 96 totalOriginalBitmapSize, totalTransformedBitmapSize, averageOriginalBitmapSize, | |
| 97 averageTransformedBitmapSize, originalBitmapCount, transformedBitmapCount, | |
| 98 System.currentTimeMillis()); | |
| 99 } | |
| 100 | |
| 101 private void processBitmap(Bitmap bitmap, int what) { | |
| 102 // Never send bitmaps to the handler as they could be recycled before we process them. | |
| 103 int bitmapSize = Utils.getBitmapBytes(bitmap); | |
| 104 handler.sendMessage(handler.obtainMessage(what, bitmapSize, 0)); | |
| 105 } | |
| 106 | |
| 107 private static long getAverage(int count, long totalSize) { | |
| 108 return totalSize / count; | |
| 109 } | |
| 110 | |
| 111 private static class StatsHandler extends Handler { | |
| 112 | |
| 113 private final Stats stats; | |
| 114 | |
| 115 public StatsHandler(Looper looper, Stats stats) { | |
| 116 super(looper); | |
| 117 this.stats = stats; | |
| 118 } | |
| 119 | |
| 120 @Override public void handleMessage(final Message msg) { | |
| 121 switch (msg.what) { | |
| 122 case CACHE_HIT: | |
| 123 stats.performCacheHit(); | |
| 124 break; | |
| 125 case CACHE_MISS: | |
| 126 stats.performCacheMiss(); | |
| 127 break; | |
| 128 case BITMAP_DECODE_FINISHED: | |
| 129 stats.performBitmapDecoded(msg.arg1); | |
| 130 break; | |
| 131 case BITMAP_TRANSFORMED_FINISHED: | |
| 132 stats.performBitmapTransformed(msg.arg1); | |
| 133 break; | |
| 134 default: | |
| 135 Picasso.HANDLER.post(new Runnable() { | |
| 136 @Override public void run() { | |
| 137 throw new AssertionError("Unhandled stats message." + msg.what); | |
| 138 } | |
| 139 }); | |
| 140 } | |
| 141 } | |
| 142 } | |
| 143 } |
