public Bitmap getBitmapFromDiskCache()

in DisplayingBitmaps/Application/src/main/java/com/example/android/displayingbitmaps/util/ImageCache.java [319:363]

39 lines of code
10 McCabe index (conditional complexity)


    public Bitmap getBitmapFromDiskCache(String data) {
        //BEGIN_INCLUDE(get_bitmap_from_disk_cache)
        final String key = hashKeyForDisk(data);
        Bitmap bitmap = null;

        synchronized (mDiskCacheLock) {
            while (mDiskCacheStarting) {
                try {
                    mDiskCacheLock.wait();
                } catch (InterruptedException e) {
                }
            }
            if (mDiskLruCache != null) {
                InputStream inputStream = null;
                try {
                    final DiskLruCache.Snapshot snapshot = mDiskLruCache.get(key);
                    if (snapshot != null) {
                        if (BuildConfig.DEBUG) {
                            Log.d(TAG, "Disk cache hit");
                        }
                        inputStream = snapshot.getInputStream(DISK_CACHE_INDEX);
                        if (inputStream != null) {
                            FileDescriptor fd = ((FileInputStream) inputStream).getFD();

                            // Decode bitmap, but we don't want to sample so give
                            // MAX_VALUE as the target dimensions
                            bitmap = ImageResizer.decodeSampledBitmapFromDescriptor(
                                    fd, Integer.MAX_VALUE, Integer.MAX_VALUE, this);
                        }
                    }
                } catch (final IOException e) {
                    Log.e(TAG, "getBitmapFromDiskCache - " + e);
                } finally {
                    try {
                        if (inputStream != null) {
                            inputStream.close();
                        }
                    } catch (IOException e) {
                    }
                }
            }
            return bitmap;
        }
        //END_INCLUDE(get_bitmap_from_disk_cache)
    }