def _process_packet(self):
chunk = self._filehandle.read(1024)
if chunk != '':
self.buffer += chunk
new_index = 0
for match in self.ooi_ts_regex.finditer(self.buffer):
payload = match.group(2)
try:
packet_time = string_to_ntp_date_time(match.group(1))
header = PacketHeader(
packet_type=PacketType.FROM_INSTRUMENT,
payload_size=len(payload),
packet_time=packet_time)
header.set_checksum(payload)
packet = PlaybackPacket(payload=payload, header=header)
self.callback(packet)
except ValueError:
log.error('Unable to extract timestamp from record: %r' %
match.group())
new_index = match.end()
if new_index > 0:
self.buffer = self.buffer[new_index:]
if len(self.buffer) > self.MAXBUF:
self.buffer = self.buffer[-self.MAXBUF:]
return True
return False
def _process_packet(self):
chunk = self._filehandle.read(1024)
if chunk != '':
self.buffer += chunk
new_index = 0
for match in self.ooi_ts_regex.finditer(self.buffer):
payload = match.group(2)
try:
packet_time = string_to_ntp_date_time(match.group(1))
header = PacketHeader(packet_type=PacketType.FROM_INSTRUMENT,
payload_size=len(payload), packet_time=packet_time)
header.set_checksum(payload)
packet = PlaybackPacket(payload=payload, header=header)
self.callback(packet)
except ValueError:
log.error('Unable to extract timestamp from record: %r' % match.group())
new_index = match.end()
if new_index > 0:
self.buffer = self.buffer[new_index:]
if len(self.buffer) > self.MAXBUF:
self.buffer = self.buffer[-self.MAXBUF:]
return True
return False
def _process_packet(self):
data = self._filehandle.read(1024)
if data != '':
header = PacketHeader(packet_type=PacketType.FROM_INSTRUMENT,
payload_size=len(data), packet_time=0)
header.set_checksum(data)
packet = PlaybackPacket(payload=data, header=header)
self.callback(packet)
return True
return False
def _process_packet(self):
data = self._filehandle.read(1024)
if data != '':
header = PacketHeader(packet_type=PacketType.FROM_INSTRUMENT,
payload_size=len(data), packet_time=0)
header.set_checksum(data)
packet = PlaybackPacket(payload=data, header=header)
self.callback(packet)
return True
return False
def _process_packet(self):
for name in self.file_name_list:
data = 'downloaded file:' + name + '\n'
header = PacketHeader(packet_type=PacketType.FROM_INSTRUMENT,
payload_size=len(data), packet_time=0)
header.set_checksum(data)
packet = PlaybackPacket(payload=data, header=header)
self.callback(packet)
return False
def _process_packet(self):
for name in self.file_name_list:
data = 'downloaded file:' + name + '\n'
header = PacketHeader(packet_type=PacketType.FROM_INSTRUMENT,
payload_size=len(data), packet_time=0)
header.set_checksum(data)
packet = PlaybackPacket(payload=data, header=header)
self.callback(packet)
return False
def packet_from_fh(file_handle):
data_buffer = bytearray()
while True:
byte = file_handle.read(1)
if byte == '':
return None
data_buffer.append(byte)
sync_index = data_buffer.find(PacketHeader.sync)
if sync_index != -1:
# found the sync bytes, read the rest of the header
data_buffer.extend(file_handle.read(PacketHeader.header_size - len(PacketHeader.sync)))
if len(data_buffer) < PacketHeader.header_size:
return None
header = PacketHeader.from_buffer(data_buffer, sync_index)
# read the payload
payload = file_handle.read(header.payload_size)
if len(payload) == header.payload_size:
packet = PlaybackPacket(payload=payload, header=header)
return packet
def packet_from_fh(file_handle):
data_buffer = bytearray()
while True:
byte = file_handle.read(1)
if byte == '':
return None
data_buffer.append(byte)
sync_index = data_buffer.find(PacketHeader.sync)
if sync_index != -1:
# found the sync bytes, read the rest of the header
data_buffer.extend(file_handle.read(PacketHeader.header_size - len(PacketHeader.sync)))
if len(data_buffer) < PacketHeader.header_size:
return None
header = PacketHeader.from_buffer(data_buffer, sync_index)
# read the payload
payload = file_handle.read(header.payload_size)
if len(payload) == header.payload_size:
packet = PlaybackPacket(payload=payload, header=header)
return packet