def test_decompress_buffer_size(self):
out = compress(SHORT_INPUT)
with self.assertRaises(TypeError):
decompress(out, buffer_size="1")
with self.assertRaises(ValueError):
decompress(out, buffer_size=0)
out = compress(LONG_INPUT)
for buffer_size in range(1, 1025, 128):
self.assertEqual(LONG_INPUT, decompress(out, buffer_size=buffer_size))
def test_compress_checksum(self):
with self.assertRaises(TypeError):
compress(SHORT_INPUT, checksum=None)
self.check_compress_short(checksum=True)
self.check_compress_short(checksum=False)
for data in (SHORT_INPUT, LONG_INPUT):
with self.assertRaisesLz4FramedError(LZ4F_ERROR_contentChecksum_invalid):
# invalid checksum
decompress(compress(data, checksum=True)[:-1] + b"0")
def test_decompress_buffer_size(self):
out = compress(SHORT_INPUT)
with self.assertRaises(TypeError):
decompress(out, buffer_size='1')
with self.assertRaises(ValueError):
decompress(out, buffer_size=0)
out = compress(LONG_INPUT)
for buffer_size in range(1, 1025, 128):
self.assertEqual(LONG_INPUT,
decompress(out, buffer_size=buffer_size))
def test_compress_checksum(self):
with self.assertRaises(TypeError):
compress(SHORT_INPUT, checksum=None)
self.check_compress_short(checksum=True)
self.check_compress_short(checksum=False)
for data in (SHORT_INPUT, LONG_INPUT):
with self.assertRaisesLz4FramedError(
LZ4F_ERROR_contentChecksum_invalid):
# invalid checksum
decompress(compress(data, checksum=True)[:-1] + b'0')
def test_compress_end(self):
with self.assertRaises(TypeError):
compress_end()
with self.assertRaises(ValueError):
compress_end(create_decompression_context())
ctx, header = self.__compress_begin()
self.assertEqual(b'', decompress(header + compress_end(ctx)))
ctx, header = self.__compress_begin()
data = compress_update(ctx, SHORT_INPUT)
self.assertEqual(decompress(header + data + compress_end(ctx)),
SHORT_INPUT)
def test_compress_end(self):
with self.assertRaises(TypeError):
compress_end()
with self.assertRaises(ValueError):
compress_end(create_decompression_context())
ctx, header = self.__compress_begin()
# without any compress_update calls frame is invalid
with self.assertRaisesLz4FramedError(LZ4F_ERROR_frameHeader_incomplete):
decompress(header + compress_end(ctx))
ctx, header = self.__compress_begin()
data = compress_update(ctx, SHORT_INPUT)
self.assertEqual(decompress(header + data + compress_end(ctx)), SHORT_INPUT)
def receive(sock):
unpickler = pickle.Unpickler(sock)
result = OrderedDict([])
keylist = unpickler.load()
for col in keylist:
dt = unpickler.load()
if (dt == object):
result[col] = pickle.loads(lz4framed.decompress(unpickler.load()))
else:
result[col] = np.frombuffer(lz4framed.decompress(unpickler.load()),
dtype=dt)
return result
def _fetch_autoclaved_measurement_body_from_s3(
autoclaved_fn: str, frame_off: int, frame_size: int, intra_off: int, intra_size: int
) -> bytes:
"""Fetch autoclaved byte range from S3, decompress it"""
log = current_app.logger
REQID_HDR = "X-Request-ID"
# This is the legacy / autoclaved S3 bucket
BASEURL = "https://ooni-data.s3.amazonaws.com/autoclaved/jsonl.tar.lz4/"
# Usual size of LZ4 frames is 256kb of decompressed text.
# Largest size of LZ4 frame was ~55Mb compressed and ~56Mb decompressed.
url = urljoin(BASEURL, autoclaved_fn)
range_header = "bytes={}-{}".format(frame_off, frame_off + frame_size - 1)
hdr = {"Range": range_header}
log.info(f"Fetching {url} {range_header}")
r = requests.get(url, headers=hdr)
r.raise_for_status()
blob = r.content
if len(blob) != frame_size:
raise RuntimeError("Failed to fetch LZ4 frame", len(blob), frame_size)
blob = lz4framed.decompress(blob)[intra_off : intra_off + intra_size]
if len(blob) != intra_size or blob[:1] != b"{" or blob[-1:] != b"}":
raise RuntimeError(
"Failed to decompress LZ4 frame to measurement.json",
len(blob),
intra_size,
blob[:1],
blob[-1:],
)
return blob
def load(self, fname):
self.logger.info("loading compressed pickle stream from '{0}'".format(fname))
import cPickle as pickle
import lz4framed as LZ4
self.data = pickle.loads(LZ4.decompress(file(fname,'rb').read()))
self.L = len(self.data)
self.logger.info("done.")
def iter_rows(channel_ids, messages_xz_path, verbose):
for guild in os.listdir(config.log_dir):
guild_path = path.join(config.log_dir, guild)
if not path.isdir(guild_path):
continue
for channel in os.listdir(guild_path):
if verbose:
print('processing', guild, '-', channel)
channel_id = channel_ids[guild][channel]
channel_path = path.join(guild_path, channel)
for day_file in os.listdir(channel_path):
with open(path.join(channel_path, day_file), 'rb') as f:
compressed = f.read()
contents = lz4framed.decompress(compressed)
lines = contents.split(b'\0')
for line in lines:
if line == b'':
continue
message_id, _time, user_id, content = line.split(b'|', 3)
yield channel_id, int(user_id), int(
message_id), content.decode('utf-8')
with lzma.open(messages_xz_path, 'rt', encoding='utf-8') as f:
reader = csv.DictReader(f)
for i, row in enumerate(reader):
channel_id = row['channel_id']
int_user_id = row['int_user_id']
message_id = row['message_id']
yield int(channel_id), int(int_user_id), int(
message_id), row['content']
if verbose and (i + 1) % 100000 == 0:
print('processed', i + 1, 'messages')
def get_one_fastpath_measurement(measurement_id, download):
"""Get one measurement from the fastpath table by measurement_id,
fetching the file from the fastpath host
"""
log = current_app.logger
tid = measurement_id[len(FASTPATH_MSM_ID_PREFIX) :]
path = "/measurements/{}.json.lz4".format(tid)
log.info(
"Incoming fastpath query %r. Fetching %s:%d%s",
measurement_id,
FASTPATH_SERVER,
FASTPATH_PORT,
path,
)
conn = http.client.HTTPConnection(FASTPATH_SERVER, FASTPATH_PORT)
log.debug("Fetching %s:%d %r", FASTPATH_SERVER, FASTPATH_PORT, path)
conn.request("GET", path)
r = conn.getresponse()
log.debug("Response status: %d", r.status)
try:
assert r.status == 200
blob = r.read()
conn.close()
log.debug("Decompressing LZ4 data")
blob = lz4framed.decompress(blob)
response = make_response(blob)
response.headers.set("Content-Type", "application/json")
log.debug("Sending JSON response")
return response
except Exception:
raise BadRequest("No measurement found")
def load(self, fname):
self.logger.info(
"loading compressed pickle stream from '{0}'".format(fname))
import cPickle as pickle
import lz4framed as LZ4
self.data = pickle.loads(LZ4.decompress(file(fname, 'rb').read()))
self.L = len(self.data)
self.logger.info("done.")
def get_geo_data(self):
if self._geo_data is None:
geo_file = self.get_file_data('geo')
buffer = lz4framed.decompress(geo_file)
arr = np.frombuffer(buffer, dtype=np.float32)
arr = arr.reshape(-1, 5)
self._geo_data = [arr[:, :3], arr[:, 3:]]
return self._geo_data
def _parse(abspath):
with open(abspath, 'rb') as f:
compressed = f.read()
contents = lz4framed.decompress(compressed)
if contents[-1] != 0:
raise Exception('corrupt log file', abspath)
last_message = contents[contents.rfind(b'\0', 0, -1) + 1:-1]
lmi = last_message.split(b'|', 1)[0].decode()
return lmi, contents
def decompress(data):
if len(data) > 0:
try:
data = lz4framed.decompress(data)
except:
print 'error : ', data
else:
data = None
return data
def _get_label(self, index):
target = None
env = self.env
with env.begin(write=False) as txn:
byteflow = txn.get(self.keys[index])
unpacked = pa.deserialize(lz4framed.decompress(byteflow))
target = unpacked[1]
return target
def get_measurement(measurement_id,
download=None) -> Response: # pragma: no cover
"""Get one measurement by measurement_id,
fetching the file from S3 or the fastpath host as needed
Returns only the measurement without extra data from the database
fetching the file from the fastpath host
---
parameters:
- name: measurement_id
in: path
required: true
type: string
description: The measurement_id to retrieve the measurement for
- name: download
in: query
type: boolean
description: If we should be triggering a file download
responses:
'200':
description: Returns the JSON blob for the specified measurement
schema:
$ref: "#/definitions/MeasurementBlob"
"""
if not measurement_id.startswith(FASTPATH_MSM_ID_PREFIX):
raise BadRequest("No measurement found")
log = current_app.logger
tid = measurement_id[len(FASTPATH_MSM_ID_PREFIX):]
path = "/measurements/{}.json.lz4".format(tid)
log.info(
"Incoming fastpath query %r. Fetching %s:%d%s",
measurement_id,
FASTPATH_SERVER,
FASTPATH_PORT,
path,
)
# FIXME
conn = http.client.HTTPConnection(FASTPATH_SERVER, FASTPATH_PORT)
conn.request("GET", path)
r = conn.getresponse()
log.debug("Response status: %d", r.status)
try:
assert r.status == 200
blob = r.read()
conn.close()
log.debug("Decompressing LZ4 data")
blob = lz4framed.decompress(blob)
response = make_response(blob)
response.headers.set("Content-Type", "application/json")
log.debug("Sending JSON response")
return response
except Exception:
raise BadRequest("No measurement found")
def __fp_test(self, in_raw=LONG_INPUT, **kwargs):
in_bytes = BytesIO(in_raw)
out_bytes = BytesIO()
with Compressor(out_bytes, **kwargs) as compressor:
try:
while True:
compressor.update(in_bytes.read(1024))
# raised by compressor.update() on empty data argument
except Lz4FramedNoDataError:
pass
self.assertEqual(decompress(out_bytes.getvalue()), in_raw)
def __fp_test(self, in_raw=LONG_INPUT, **kwargs):
in_bytes = BytesIO(in_raw)
out_bytes = BytesIO()
with Compressor(out_bytes, **kwargs) as compressor:
try:
while True:
compressor.update(in_bytes.read(1024))
# raised by compressor.update() on empty data argument
except Lz4FramedNoDataError:
pass
self.assertEqual(decompress(out_bytes.getvalue()), in_raw)
def __compress_with_data_and_args(self, data, **kwargs):
ctx, header = self.__compress_begin(**kwargs)
in_raw = BytesIO(data)
out = BytesIO(header)
out.seek(0, SEEK_END)
try:
while True:
out.write(compress_update(ctx, in_raw.read(1024)))
except Lz4FramedNoDataError:
pass
out.write(compress_end(ctx))
self.assertEqual(decompress(out.getvalue()), data)
def __compress_with_data_and_args(self, data, **kwargs):
ctx, header = self.__compress_begin(**kwargs)
in_raw = BytesIO(data)
out = BytesIO(header)
out.seek(0, SEEK_END)
try:
while True:
out.write(compress_update(ctx, in_raw.read(1024)))
except Lz4FramedNoDataError:
pass
out.write(compress_end(ctx))
self.assertEqual(decompress(out.getvalue()), data)
def load(self):
# if size is not None, means already loaded.
if self._geo_cache is not None:
return True
# open file
load_path = (f'{setting.submit_job_path}{self._job_id}/export/')
file_path = f'{load_path}{self._frame:06d}'
old_format_path = file_path + '.4dr'
new_format_path = file_path + '.4df'
# old format
if os.path.isfile(old_format_path):
with open(old_format_path, 'rb') as f:
data = f.read()
geo_size, tex_size = struct.unpack('II', data[:8])
seek = 8
# load geo
buffer = lz4framed.decompress(data[seek:seek + geo_size])
arr = np.frombuffer(buffer, dtype=np.float32)
seek += geo_size
arr = arr.reshape(-1, 5)
geo_data = [arr[:, :3], arr[:, 3:]]
# load texture
tex_data = jpeg_coder.decode(data[seek:seek + tex_size])
self._cache_buffer(geo_data, tex_data)
return True
# new format
elif os.path.isfile(new_format_path):
fourd_frame = FourdFrameManager.load(new_format_path)
geo_data = fourd_frame.get_geo_data()
tex_data = fourd_frame.get_texture_data()
self._resolution = fourd_frame.get_texture_resolution()
# resize for better playback performance
if self._resolution > setting.max_display_resolution:
tex_data = cv2.resize(tex_data,
dsize=(setting.max_display_resolution,
setting.max_display_resolution),
interpolation=cv2.INTER_CUBIC)
self._resolution = setting.max_display_resolution
self._cache_buffer(geo_data, tex_data)
return True
return None
def test_compressor__no_fp(self):
in_bytes = BytesIO(LONG_INPUT)
out_bytes = BytesIO()
compressor = Compressor()
try:
while True:
out_bytes.write(compressor.update(in_bytes.read(1024)))
# raised by compressor.update() on empty data argument
except Lz4FramedNoDataError:
pass
out_bytes.write(compressor.end())
self.assertEqual(decompress(out_bytes.getvalue()), LONG_INPUT)
def test_compressor__no_fp(self):
in_bytes = BytesIO(LONG_INPUT)
out_bytes = BytesIO()
compressor = Compressor()
try:
while True:
out_bytes.write(compressor.update(in_bytes.read(1024)))
# raised by compressor.update() on empty data argument
except Lz4FramedNoDataError:
pass
out_bytes.write(compressor.end())
self.assertEqual(decompress(out_bytes.getvalue()), LONG_INPUT)
def __init__(self, lmdb_store_path, transform=None):
super().__init__()
assert os.path.isfile(lmdb_store_path), f"LMDB store '{lmdb_store_path} does not exist"
assert not os.path.isdir(lmdb_store_path), f"LMDB store name should a file, found directory: {lmdb_store_path}"
self.lmdb_store_path = lmdb_store_path
self.lmdb_connection = lmdb.open(lmdb_store_path,
subdir=False, readonly=True, lock=False, readahead=False, meminit=False)
with self.lmdb_connection.begin(write=False) as lmdb_txn:
self.length = lmdb_txn.stat()['entries'] - 1
self.keys = pyarrow.deserialize(lz4framed.decompress(lmdb_txn.get(b'__keys__')))
print(f"Total records: {len(self.keys), self.length}")
self.transform = transform
def __init__(self,
db_path,
transform=None,
target_transform=None,
train=True):
self.db_path = db_path
self.env = lmdb.open(db_path,
subdir=path.isdir(db_path),
readonly=True,
lock=False,
readahead=False,
meminit=False)
with self.env.begin(write=False) as txn:
# self.length = txn.stat()['entries'] - 1
self.length = pa.deserialize(
lz4framed.decompress(txn.get(b'__len__')))
self.keys = pa.deserialize(
lz4framed.decompress(txn.get(b'__keys__')))
self.classnum = pa.deserialize(
lz4framed.decompress(txn.get(b'__classnum__')))
self.transform = transform
self.target_transform = target_transform
def __init__(self,
datatype,
lmdb_store_path,
mask_path,
hr_shape=(192, 192),
gen_only=True):
super().__init__()
assert os.path.isfile(
lmdb_store_path), f"LMDB store '{lmdb_store_path} does not exist"
assert not os.path.isdir(
lmdb_store_path
), f"LMDB store name should a file, found directory: {lmdb_store_path}"
self.lmdb_store_path = lmdb_store_path
self.lmdb_connection = lmdb.open(lmdb_store_path,
subdir=False,
readonly=True,
lock=False,
readahead=False,
meminit=False)
with self.lmdb_connection.begin(write=False) as lmdb_txn:
self.length = lmdb_txn.stat()['entries'] - 1
self.keys = pyarrow.deserialize(
lz4framed.decompress(lmdb_txn.get(b'__keys__')))
print(f"Total records: {len(self.keys), self.length}")
self.transform = transform
self.datatype = datatype
self.mask_path = mask_path / datatype
self.hr_height, self.hr_width = hr_shape
self.mask_generator = MaskGenerator(height=self.hr_height,
width=self.hr_width,
channels=3,
filepath=self.mask_path)
self.gen_only = gen_only
self.mean = np.array([0.485, 0.456, 0.406])
self.std = np.array([0.229, 0.224, 0.225])
self.image_transform = torchvision.transforms.Compose([
transforms.Resize((self.hr_height, self.hr_height), Image.LANCZOS),
transforms.ToTensor(),
transforms.Normalize(self.mean, self.std)
])
self.mask_transform = transforms.Compose([
transforms.ToTensor()
# transforms.Normalize(self.mean, self.std)
])
def test_decompress_invalid_input(self):
with self.assertRaisesLz4FramedError(LZ4F_ERROR_frameType_unknown):
decompress(b'invalidheader')
with self.assertRaisesRegex(ValueError, 'frame incomplete'):
decompress(compress(SHORT_INPUT)[:-5])
# incomplete data (length not specified in header)
with BytesIO() as out:
with Compressor(out) as compressor:
compressor.update(SHORT_INPUT)
output = out.getvalue()
with self.assertRaisesRegex(ValueError, 'frame incomplete'):
decompress(output[:-20])
def test_decompress_invalid_input(self):
with self.assertRaisesLz4FramedError(LZ4F_ERROR_frameHeader_incomplete):
decompress(b"invalidheader")
with self.assertRaisesRegex(ValueError, "frame incomplete"):
decompress(compress(SHORT_INPUT)[:-5])
# incomplete data (length not specified in header)
with BytesIO() as out:
with Compressor(out) as compressor:
compressor.update(SHORT_INPUT)
output = out.getvalue()
with self.assertRaisesRegex(ValueError, "frame incomplete"):
decompress(output[:-20])
def unpack_4fr(file_path):
jpeg_encoder = TurboJPEG('turbojpeg.dll')
with open(file_path, 'rb') as f:
data = f.read()
header = data[:8]
geo_size, texture_size = struct.unpack('II', header)
geo_buffer = data[8:8 + geo_size]
texture_buffer = data[8 + geo_size:]
# obj
geo_buffer = lz4framed.decompress(geo_buffer)
point_list = np.frombuffer(geo_buffer, dtype=np.float32)
point_list = point_list.reshape(-1, 5)
pos_list = point_list[:, 0:3]
uv_list = point_list[:, 3:5]
uv_list = np.array(uv_list, np.float32)
uv_list -= [0, 1.0]
uv_list *= [1, -1]
pos_strings = [f'v {x} {y} {z}' for x, y, z in pos_list]
uv_strings = [f'vt {u} {v}' for u, v in uv_list]
face_strings = [
f'f {f}/{f} {f + 1}/{f + 1} {f + 2}/{f + 2}'
for f in range(1, point_list.shape[0], 3)
]
obj_data = ['g'] + pos_strings + uv_strings + ['g'] + face_strings
obj_data = '\n'.join(obj_data)
with open(file_path.replace('4dr', 'obj'), 'w') as f:
f.write(obj_data)
# jpg
with open(file_path.replace('4dr', 'jpg'), 'wb') as f:
im = jpeg_encoder.decode(texture_buffer, TJPF_RGB)
f.write(jpeg_encoder.encode(im))
return file_path
def iter_rows(channel_ids, verbose):
for guild in os.listdir(config.log_dir):
guild_path = path.join(config.log_dir, guild)
if not path.isdir(guild_path):
continue
for channel in os.listdir(guild_path):
if verbose:
print('processing', guild, '-', channel)
channel_id = channel_ids[guild][channel]
channel_path = path.join(guild_path, channel)
for day_file in os.listdir(channel_path):
with open(path.join(channel_path, day_file), 'rb') as f:
compressed = f.read()
contents = lz4framed.decompress(compressed)
lines = contents.split(b'\0')
for line in lines:
if line == b'':
continue
message_id, _time, user_id, content = line.split(b'|', 3)
yield channel_id, int(user_id), int(
message_id), content.decode('utf-8')
def main(host='127.0.0.1', port=5000):
pygame.init()
FPS_FONT = pygame.font.SysFont("Verdana", 20)
GOLDENROD = pygame.Color("goldenrod")
def show_fps(window, clock):
pygame.draw.rect(window, (0, 0, 0), Rect((0, 0), (60, 30)))
fps_overlay = FPS_FONT.render("{0:.2f}".format(clock.get_fps()), True,
GOLDENROD)
window.blit(fps_overlay, (0, 0))
screen = pygame.display.set_mode((WIDTH, HEIGHT))
clock = pygame.time.Clock()
watching = True
sock = socket()
sock.connect((host, port))
try:
while watching:
for event in pygame.event.get():
if event.type == pygame.QUIT:
watching = False
break
# Retreive the size of the pixels length,
# the pixels length and pixels
size_len = int.from_bytes(sock.recv(1), byteorder='big')
size = int.from_bytes(sock.recv(size_len), byteorder='big')
pixels = lz4framed.decompress(recvall(sock, size))
# Create the Surface from raw pixels
img = pygame.image.fromstring(pixels, (WIDTH, HEIGHT), 'RGB')
# Display the picture
screen.blit(img, (0, 0))
show_fps(screen, clock)
pygame.display.flip()
clock.tick(60)
finally:
sock.close()
def _read_entries(self, reader):
while reader.remaining() > 0:
# Stop once internal header is found if only interrested in it
if (self._options.print_header
or self._options.integrity) and self.internal_header:
break
try:
entry_id = reader.read_u32()
entry_len = reader.read_u32()
entry_data = reader.read_data(entry_len)
except LogError as ex:
# Raise error and stop reading
raise LogError("Truncated entry: %s" % str(ex))
if self.version >= 3 and entry_id == LOGGERD_ID_AES_DESC:
self._read_aes_desc(LogDataReader(entry_data))
elif self.version >= 3 and entry_id == LOGGERD_ID_AES:
new_data = self._aes_decrypt(entry_data)
if not self.decrypt_only:
self._read_entries(LogDataReader(new_data))
else:
self._out.write(new_data)
elif self.decrypt_only:
self._out.write(struct.pack("<II", entry_id, entry_len))
self._out.write(entry_data)
elif entry_id == LOGGERD_ID_SOURCE_DESC:
desc = LogSourceDesc(LogDataReader(entry_data))
self._add_source(desc)
elif entry_id == LOGGERD_ID_LZ4:
try:
new_data = lz4framed.decompress(entry_data)
except lz4framed.Lz4FramedError as ex:
# Print message and try continue reading
LOG.warning("Truncated lz4 entry: %s", str(ex))
continue
self._read_entries(LogDataReader(new_data))
else:
source = self._get_source(entry_id)
source.add_entry(LogDataReader(entry_data))
def convert_to_pixmap(self, focus=False, save=False):
"""做一系列圖像轉換至 pixmap
二進制JPEG > cv2 > QImage > QPixmap
"""
if self._buf is None:
if not self.is_cache():
return None
buf = lz4framed.decompress(self._cache)
buf = np.frombuffer(buf, self._type)
buf.shape = self._shape
else:
buf = np.copy(self._buf)
_height, _width, _ = buf.shape
if (self.is_live_view() and _width == self._ow):
if focus:
sim = cv2.resize(buf, (int(_width / 2), int(_height / 2)))
edges = cv2.Canny(sim, 280, 380)
edges = cv2.dilate(edges, self._kernel)
edges = cv2.cvtColor(edges, cv2.COLOR_GRAY2BGR)
edges *= np.array((1, 0, 0), np.uint8)
edges = cv2.resize(edges, (_width, _height))
buf = np.bitwise_or(buf, edges)
tm = cv2.resize(buf, (int(_width / 2), int(_height / 2)))
tm = cv2.cvtColor(tm, cv2.COLOR_RGB2BGR)
server.set_buffer(tm)
# 轉成 QImage
q_image = QImage(buf.data, _width, _height, 3 * _width,
QImage.Format_RGB888)
# 轉成 QPixmap
if not save:
self._buf = None
return QPixmap.fromImage(q_image)
def __getitem__(self, index):
img, target = None, None
env = self.env
with env.begin(write=False) as txn:
byteflow = txn.get(self.keys[index])
unpacked = pa.deserialize(lz4framed.decompress(byteflow))
# load image
imgbuf = unpacked[0]
buf = six.BytesIO()
buf.write(imgbuf)
buf.seek(0)
img = Image.open(buf).convert('RGB')
# load label
target = unpacked[1]
if self.transform is not None:
img = self.transform(img)
if self.target_transform is not None:
target = self.target_transform(target, self.classnum)
return img, target
def check_compress_long(self, *args, **kwargs):
self.assertEqual(LONG_INPUT,
decompress(compress(LONG_INPUT, *args, **kwargs)))
def test_decompress_minimal(self):
with self.assertRaises(TypeError):
decompress()
with self.assertRaises(Lz4FramedNoDataError):
decompress(b"")
self.check_compress_short()
def check_compress_short(self, *args, **kwargs):
self.assertEqual(SHORT_INPUT,
decompress(compress(SHORT_INPUT, *args, **kwargs)))
def check_compress_short(self, *args, **kwargs):
self.assertEqual(SHORT_INPUT, decompress(compress(SHORT_INPUT, *args, **kwargs)))
def check_compress_long(self, *args, **kwargs):
self.assertEqual(LONG_INPUT, decompress(compress(LONG_INPUT, *args, **kwargs)))
def processData(data):
try:
dep = DataExchangeProtocol()
dep.ParseFromString(data)
except Exception as e:
logger.error("处理DEP错误,PB解析数据发生错误")
logger.error(e, exc_info=True)
logger.error("处理DEP错误,PB解析数据发生错误,原始数据:%s", data)
return
sourceNodeId = dep.sourceNodeId
targetNodeId = dep.targetNodeId
if targetNodeId != Config.nodeId:
logger.error("处理DEP错误,目标节点ID不匹配当前节点ID:%s,目标节点ID:%s", Config.nodeId,
targetNodeId)
return
rpcId = dep.rpcId
timestamp = dep.timestamp
contentType = dep.contentType
rpcType = dep.rpcType
reqId = dep.reqId
logger.info(
"处理DEP记录,来源节点ID:%s,RPC类型:%s,RPC ID:%s,请求ID:%s内容类型:%s,时间戳:%s",
sourceNodeId, rpcType, rpcId, reqId, contentType, timestamp)
if contentType == DataExchangeProtocol.ContentType.COMPRESSED_LZ4:
try:
contentByteString = lz4framed.decompress(dep.contentBytes)
except Exception:
logger.error(
"处理DEP异常,来源节点ID:%s,RPC类型:%s,RPC ID:%s,请求ID:%s时间戳:%s,无法使用LZ4正确解析报文内容",
sourceNodeId,
rpcType,
rpcId,
reqId,
timestamp,
exc_info=True)
RpcClientProcessService.sendExceptionRsp(
sourceNodeId, rpcId, reqId, timestamp, "无法使用LZ4正确解析报文内容")
return
elif contentType == DataExchangeProtocol.ContentType.ROUTINE:
contentByteString = dep.contentBytes
else:
logger.error(
"处理DEP错误，来源节点ID:%s,RPC类型:%s,RPC ID:%s,请求ID:%s内容类型:%s,时间戳:%s,不支持的报文类型",
sourceNodeId, rpcType, rpcId, reqId, contentType, timestamp)
RpcClientProcessService.sendExceptionRsp(sourceNodeId, rpcId,
reqId, timestamp,
"不支持的报文类型")
return
if not contentByteString or len(contentByteString) <= 0:
logger.error(
"处理DEP错误，来源节点ID:%s,RPC类型:%s,RPC ID:%s,请求ID:%s内容类型:%s,时间戳:%s,报文内容长度错误",
sourceNodeId, rpcType, rpcId, contentType, timestamp)
RpcClientProcessService.sendExceptionRsp(sourceNodeId, rpcId,
reqId, timestamp,
"报文内容长度错误")
return
if rpcType != DataExchangeProtocol.RpcType.CORE_RPC:
logger.error(
"处理DEP错误，来源节点ID:%s,RPC类型:%s,RPC ID:%s,请求ID:%s内容类型:%s,时间戳:%s,未能识别的RPC类型",
sourceNodeId, rpcType, rpcId, reqId, contentType, timestamp)
return
RpcClientProcessService.doCoreRpc(sourceNodeId, rpcId, reqId,
contentByteString, timestamp)
def get_chunk(self, i):
self.lz_file.seek(self.chunk_starts[i])
comp = self.lz_file.read(self.chunk_starts[i+1] - self.chunk_starts[i])
return Z.decompress(comp)
def test_decompress_minimal(self):
with self.assertRaises(TypeError):
decompress()
with self.assertRaises(Lz4FramedNoDataError):
decompress(b'')
self.check_compress_short()
