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HTTPCameraAgent write file change #740

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merged 3 commits into from
Aug 29, 2024
Merged

HTTPCameraAgent write file change #740

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0dc51c9
write chunks
davidvng Aug 29, 2024
3b1b6dd
fix indent
davidvng Aug 29, 2024
aa9bc78
change exception
davidvng Aug 29, 2024
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37 changes: 21 additions & 16 deletions socs/agents/http_camera/agent.py
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Original file line number Diff line number Diff line change
Expand Up @@ -116,17 +116,15 @@ def acq(self, session, params=None):
except (requests.exceptions.RequestException, ReadTimeoutError) as e:
self.log.error(f'{e}')
self.log.info("Unable to get response from camera.")
connected = False
data[camera['location']]['last_attempt'] = time.time()
data[camera['location']]['connected'] = connected
data[camera['location']]['connected'] = False
continue
rdata = resp.json()
value = rdata[0].get('value', None)
if value is None:
self.log.info("Unable to get token. Max number of tokens used.")
connected = False
data[camera['location']]['last_attempt'] = time.time()
data[camera['location']]['connected'] = connected
data[camera['location']]['connected'] = False
continue
camera['token'] = value['Token']['name']
camera['token_ts'] = timestamp
Expand Down Expand Up @@ -159,29 +157,36 @@ def acq(self, session, params=None):
response = requests.get(url, params=payload, stream=True, timeout=5, verify=False)
elif camera['brand'] == 'acti':
response = requests.get(url, params=payload, stream=True, timeout=5)
connected = True
except (requests.exceptions.RequestException, ReadTimeoutError) as e:
self.log.error(f'{e}')
self.log.info("Unable to get response from camera.")
connected = False
data[camera['location']]['last_attempt'] = time.time()
data[camera['location']]['connected'] = connected
data[camera['location']]['connected'] = False
continue
self.log.debug("Received screenshot from camera.")

# Write screenshot to file and update latest file
with open(filename, 'wb') as out_file:
shutil.copyfileobj(response.raw, out_file)
# Ensure all data is written to the disk before copying to latest
out_file.flush()
os.fsync(out_file.fileno())
self.log.debug(f"Wrote {ctime}.jpg to /{camera['location']}/{ctime_dir}.")
try:
with open(filename, 'wb') as out_file:
for chunk in response.iter_content(chunk_size=8192):
if chunk:
out_file.write(chunk)
out_file.flush()
os.fsync(out_file.fileno())
self.log.debug(f"Wrote {ctime}.jpg to /{camera['location']}/{ctime_dir}.")
except ReadTimeoutError as e:
self.log.error(f'{e}')
self.log.info("Timeout occurred while writing to file.")
data[camera['location']]['last_attempt'] = time.time()
data[camera['location']]['connected'] = False
continue
finally:
response.close()
shutil.copy2(filename, latest_filename)
self.log.debug(f"Updated latest.jpg in /{camera['location']}.")
del response

data[camera['location']]['last_attempt'] = time.time()
data[camera['location']]['connected'] = connected
data[camera['location']]['connected'] = True

# Update session.data and publish to feed
for camera in self.config['cameras']:
Expand All @@ -195,7 +200,7 @@ def acq(self, session, params=None):
'data': {}
}
for camera in self.config['cameras']:
message['data'][camera['location'] + "_connected"] = int(connected)
message['data'][camera['location'] + "_connected"] = int(data[camera['location']]['connected'])
session.app.publish_to_feed('cameras', message)
self.log.debug("{msg}", msg=message)

Expand Down