private void copyImageToPrivateStorage(File file, Uri image, int sampleSize)
throws FileCopyException {
file.getParentFile().mkdirs();
InputStream is = null;
OutputStream os = null;
try {
if (!file.exists() && !file.createNewFile()) {
throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
}
is = mXmppConnectionService.getContentResolver().openInputStream(image);
if (is == null) {
throw new FileCopyException(R.string.error_not_an_image_file);
}
Bitmap originalBitmap;
BitmapFactory.Options options = new BitmapFactory.Options();
int inSampleSize = (int) Math.pow(2, sampleSize);
Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
options.inSampleSize = inSampleSize;
originalBitmap = BitmapFactory.decodeStream(is, null, options);
is.close();
if (originalBitmap == null) {
throw new FileCopyException(R.string.error_not_an_image_file);
}
Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
int rotation = getRotation(image);
scaledBitmap = rotate(scaledBitmap, rotation);
boolean targetSizeReached = false;
int quality = Config.IMAGE_QUALITY;
while (!targetSizeReached) {
os = new FileOutputStream(file);
boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
if (!success) {
throw new FileCopyException(R.string.error_compressing_image);
}
os.flush();
targetSizeReached = file.length() <= Config.IMAGE_MAX_SIZE || quality <= 50;
quality -= 5;
}
scaledBitmap.recycle();
} catch (FileNotFoundException e) {
throw new FileCopyException(R.string.error_file_not_found);
} catch (IOException e) {
e.printStackTrace();
throw new FileCopyException(R.string.error_io_exception);
} catch (SecurityException e) {
throw new FileCopyException(R.string.error_security_exception_during_image_copy);
} catch (OutOfMemoryError e) {
++sampleSize;
if (sampleSize <= 3) {
copyImageToPrivateStorage(file, image, sampleSize);
} else {
throw new FileCopyException(R.string.error_out_of_memory);
}
} finally {
close(os);
close(is);
}
}
public void copyImageToPrivateStorage(Message message, Uri image) throws FileCopyException {
String filename =
fileDateFormat.format(new Date(message.getTimeSent()))
+ "_"
+ message.getUuid().substring(0, 4);
switch (Config.IMAGE_FORMAT) {
case JPEG:
message.setRelativeFilePath(filename + ".jpg");
break;
case PNG:
message.setRelativeFilePath(filename + ".png");
break;
case WEBP:
message.setRelativeFilePath(filename + ".webp");
break;
}
copyImageToPrivateStorage(getFile(message), image);
updateFileParams(message);
}
public void copyImageToPrivateStorage(File file, Uri image) throws FileCopyException {
Log.d(
Config.LOGTAG,
"copy image (" + image.toString() + ") to private storage " + file.getAbsolutePath());
copyImageToPrivateStorage(file, image, 0);
}