class GenericConsumer(Base):
def __init__(self, connection_str):
super().__init__()
self._logger = LoggingTool(
name=self.get_class_name(),
ttl=EnvUtil.get_pslx_env_variable('PSLX_INTERNAL_TTL'))
self._connection_str = connection_str
self._queue_consumers = []
def bind_queue(self, exchange, queue):
queue_consumer = GenericQueueConsumer(
consumer_name=queue.get_queue_name() + '_consumer')
self._logger.info("Adding queue [" + queue.get_queue_name() +
"] to consumer [" +
queue_consumer.get_consumer_name() + '].')
queue_consumer.create_consumer(exchange=exchange,
connection_str=self._connection_str)
queue_consumer.bind_queue(queue=queue)
self._queue_consumers.append(queue_consumer)
def start_consumer(self):
try:
for consumer in self._queue_consumers:
self._logger.info("Starting consumer [" +
consumer.get_consumer_name() + '].')
consumer.start_consumer()
while True:
time.sleep(TimeSleepObj.ONE_SECOND)
except KeyboardInterrupt:
for consumer in self._queue_consumers:
consumer.stop_consumer()
def __init__(self, connection_str):
super().__init__()
self._logger = LoggingTool(
name=self.get_class_name(),
ttl=EnvUtil.get_pslx_env_variable('PSLX_INTERNAL_TTL'))
self._connection_str = connection_str
self._queue_consumers = []
def __init__(self, server_name):
super().__init__()
self._server_name = server_name
self._logger = LoggingTool(name=self.get_server_name(),
ttl=os.getenv('PSLX_INTERNAL_TTL', 7))
self._url = None
self._rpc_server = None
self._has_added_rpc = False
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(),
rpc_storage=rpc_storage)
self._logger = LoggingTool(
name="PSLX_EMAIL_RPC",
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
self._credentials = {}
self._email_servers = {}
class EmailRPC(RPCBase):
REQUEST_MESSAGE_TYPE = EmailPRCRequest
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(),
rpc_storage=rpc_storage)
self._logger = LoggingTool(
name="PSLX_EMAIL_RPC",
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
self._credentials = {}
self._email_servers = {}
def _login(self, credentials):
if not credentials.password:
self._logger.error("Failed in logging to email [" +
credentials.user_name + '].')
else:
self._credentials[credentials.user_name] = credentials
email_server = smtplib.SMTP(
credentials.others['email_server'],
int(credentials.others['email_server_port']))
email_server.starttls()
email_server.login(credentials.user_name, credentials.password)
self._email_servers[credentials.user_name] = email_server
self._logger.info("Successfully login to email [" +
credentials.user_name + '].')
def add_email_credentials(self, credentials):
self._credentials[credentials.user_name] = credentials
self._login(credentials)
def get_response_and_status_impl(self, request):
if request.from_email not in self._credentials:
self._logger.error("Email address is not logged in at all.")
return None, Status.FAILED
def _send_email():
if not request.is_test and request.to_email and request.content:
self._email_servers[request.from_email].sendmail(
from_addr=request.from_email,
to_addrs=request.to_email,
msg=request.content)
try:
_send_email()
self._logger.info("Succeeded in sending email directly to " +
request.to_email + '.')
except (smtplib.SMTPSenderRefused, smtplib.SMTPServerDisconnected,
smtplib.SMTPConnectError,
smtplib.SMTPAuthenticationError) as err:
self._logger.error("Sending email with exception: " + str(err) +
'. Retry.')
self._login(credentials=self._credentials[request.from_email])
_send_email()
return None, Status.SUCCEEDED
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(), rpc_storage=rpc_storage)
self._type_to_sender_map = {
InstantMessagingType.SLACK: self._send_by_slack,
InstantMessagingType.ROCKETCHAT: self._send_by_rocketchat,
InstantMessagingType.TEAMS: self._send_by_teams,
}
self._logger = LoggingTool(
name='PSLX_INSTANT_MESSAGING_RPC',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL')
)
def __init__(self, consumer_name):
super().__init__()
self._consumer_name = consumer_name
self._logger = LoggingTool(
name=consumer_name,
ttl=EnvUtil.get_pslx_env_variable('PSLX_INTERNAL_TTL'))
self._connection_str = ''
self._exchange = ''
self._connection = None
self._queue = None
self._thread = None
self._has_added_queue = False
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(), rpc_storage=rpc_storage)
self._lru_cache_tool = LRUCacheTool(
max_capacity=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_CACHE')
)
self._storage_type_to_impl_func = {
StorageType.DEFAULT_STORAGE: self._default_storage_impl,
StorageType.FIXED_SIZE_STORAGE: self._fixed_size_storage_impl,
StorageType.PROTO_TABLE_STORAGE: self._proto_table_storage_impl,
StorageType.PARTITIONER_STORAGE: self._partitioner_storage_impl,
}
self._logger = LoggingTool(
name='PSLX_RPC_IO_RPC',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL')
)
def __init__(self, container_name, ttl=-1):
super().__init__(container_name, ttl=ttl)
self._logger = LoggingTool(
name=(ProtoUtil.get_name_by_value(enum_type=DataModelType,
value=self.DATA_MODEL) + '__' +
self.get_class_name() + '__' + container_name),
ttl=ttl)
class ContainerBackendRPCClient(ClientBase):
RESPONSE_MESSAGE_TYPE = None
def __init__(self, client_name, server_url, root_certificate=None):
super().__init__(client_name=client_name, server_url=server_url)
self._root_certificate = root_certificate
self._logger = LoggingTool(
name=self.get_client_name(),
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
def send_to_backend(self, snapshot):
try:
self.send_request(request=snapshot,
root_certificate=self._root_certificate)
except Exception as err:
self._logger.error("Send to backend failed with error: " +
str(err))
def __init__(self, channel_name, webhook_url, server_url):
super().__init__(client_name=self.get_class_name(),
server_url=server_url)
self._webhook_url = webhook_url
self._channel_name = channel_name
self._logger = LoggingTool(
name=channel_name,
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(),
rpc_storage=rpc_storage)
self._logger = LoggingTool(
name='PSLX_CONTAINER_BACKEND_RPC',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
self._lru_cache_tool = LRUCacheTool(
max_capacity=EnvUtil.get_pslx_env_variable(
var='PSLX_INTERNAL_CACHE'))
self._backend_folder = FileUtil.join_paths_to_dir(
root_dir=EnvUtil.get_pslx_env_variable('PSLX_DATABASE'),
base_name='PSLX_CONTAINER_BACKEND_TABLE')
class RPCIO(RPCBase):
REQUEST_MESSAGE_TYPE = RPCIORequest
PARTITIONER_TYPE_TO_IMPL = {
PartitionerStorageType.YEARLY: partitioner.YearlyPartitionerStorage,
PartitionerStorageType.MONTHLY: partitioner.MonthlyPartitionerStorage,
PartitionerStorageType.DAILY: partitioner.DailyPartitionerStorage,
PartitionerStorageType.HOURLY: partitioner.HourlyPartitionerStorage,
PartitionerStorageType.MINUTELY: partitioner.MinutelyPartitionerStorage,
}
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(), rpc_storage=rpc_storage)
self._lru_cache_tool = LRUCacheTool(
max_capacity=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_CACHE')
)
self._storage_type_to_impl_func = {
StorageType.DEFAULT_STORAGE: self._default_storage_impl,
StorageType.FIXED_SIZE_STORAGE: self._fixed_size_storage_impl,
StorageType.PROTO_TABLE_STORAGE: self._proto_table_storage_impl,
StorageType.PARTITIONER_STORAGE: self._partitioner_storage_impl,
}
self._logger = LoggingTool(
name='PSLX_RPC_IO_RPC',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL')
)
def _default_storage_impl(self, request):
self._logger.info("Getting request of default storage read.")
read_params = dict(request.params)
if 'num_line' in read_params:
read_params['num_line'] = int(read_params['num_line'])
lru_key = (request.type, request.file_name)
storage = self._lru_cache_tool.get(key=lru_key)
if not storage:
self.sys_log("Did not find the storage in cache. Making a new one...")
storage = DefaultStorage()
storage.initialize_from_file(file_name=request.file_name)
self._lru_cache_tool.set(
key=lru_key,
value=storage
)
else:
self.sys_log("Found key in LRU cache.")
self._logger.info('Current cache size ' + str(self._lru_cache_tool.get_cur_capacity()))
response = RPCIOResponse()
data = storage.read(params=read_params)
rpc_list_data = RPCIOResponse.RPCListData()
for item in data:
rpc_data = rpc_list_data.data.add()
rpc_data.string_data = item
response.list_data.CopyFrom(rpc_list_data)
return response
def _fixed_size_storage_impl(self, request):
self._logger.info("Getting request of fixed size storage read.")
read_params = dict(request.params)
if 'force_load' in read_params:
read_params['force_load'] = ast.literal_eval(read_params['force_load'])
if 'num_line' in read_params:
read_params['num_line'] = int(read_params['num_line'])
lru_key = (request.type, request.file_name)
if 'fixed_size' in read_params:
lru_key += (read_params['fixed_size'],)
storage = self._lru_cache_tool.get(key=lru_key)
if not storage:
self.sys_log("Did not find the storage in cache. Making a new one...")
if 'fixed_size' in read_params:
storage = FixedSizeStorage(fixed_size=int(read_params['fixed_size']))
else:
storage = FixedSizeStorage()
storage.initialize_from_file(file_name=request.file_name)
self._lru_cache_tool.set(
key=lru_key,
value=storage
)
else:
self.sys_log("Found key in LRU cache.")
self._logger.info('Current cache size ' + str(self._lru_cache_tool.get_cur_capacity()))
read_params.pop('fixed_size', None)
response = RPCIOResponse()
data = storage.read(params=read_params)
rpc_list_data = RPCIOResponse.RPCListData()
for item in data:
rpc_data = rpc_list_data.data.add()
rpc_data.string_data = item
response.list_data.CopyFrom(rpc_list_data)
return response
def _proto_table_storage_impl(self, request):
self._logger.info("Getting request of proto table storage read.")
read_params = dict(request.params)
if 'proto_module' in read_params:
read_params['message_type'] = ProtoUtil.infer_message_type_from_str(
message_type_str=read_params['message_type'],
modules=read_params['proto_module']
)
else:
read_params['message_type'] = ProtoUtil.infer_message_type_from_str(
message_type_str=read_params['message_type']
)
lru_key = (request.type, request.file_name)
storage = self._lru_cache_tool.get(key=lru_key)
if not storage:
self.sys_log("Did not find the storage in cache. Making a new one...")
storage = ProtoTableStorage()
storage.initialize_from_file(file_name=request.file_name)
self._lru_cache_tool.set(
key=lru_key,
value=storage
)
else:
self.sys_log("Found key in LRU cache.")
self._logger.info('Current cache size ' + str(self._lru_cache_tool.get_cur_capacity()))
read_params.pop('proto_module', None)
return storage.read(params=read_params)
def _partitioner_storage_impl(self, request):
self._logger.info("Getting request of partitioner storage read.")
read_params = dict(request.params)
is_proto_table = True if read_params['is_proto_table'] == '1' else False
if 'base_name' in read_params:
base_name = read_params['base_name']
else:
base_name = 'data.pb' if is_proto_table else 'data'
lru_key = (read_params['PartitionerStorageType'], request.dir_name)
self._logger.info("Partitioner type is " + read_params['PartitionerStorageType'])
storage = self._lru_cache_tool.get(key=lru_key)
if not storage:
self.sys_log("Did not find the storage in cache. Making a new one...")
partitioner_type = ProtoUtil.get_value_by_name(
enum_type=PartitionerStorageType,
name=read_params['PartitionerStorageType']
)
storage = self.PARTITIONER_TYPE_TO_IMPL[partitioner_type]()
storage.initialize_from_dir(dir_name=request.dir_name)
self._lru_cache_tool.set(
key=lru_key,
value=storage
)
else:
self.sys_log("Found key in LRU cache.")
self._logger.info('Current cache size ' + str(self._lru_cache_tool.get_cur_capacity()))
read_params.pop('PartitionerStorageType', None)
read_params.pop('is_proto_table', None)
if is_proto_table:
proto_table_storage = ProtoTableStorage()
storage.set_underlying_storage(storage=proto_table_storage)
else:
read_params['num_line'] = -1
response = RPCIOResponse()
if 'start_time' not in read_params:
# calling read function
if is_proto_table:
# if underlying storage is proto table.
if 'message_type' in read_params:
assert 'proto_module' in read_params
read_params['message_type'] = ProtoUtil.infer_message_type_from_str(
message_type_str=read_params['message_type'],
modules=read_params['proto_module']
)
proto_storage = ProtoTableStorage()
if 'read_oldest' in read_params:
proto_storage.initialize_from_file(
file_name=FileUtil.join_paths_to_file(
root_dir=storage.get_oldest_dir_in_root_directory(),
base_name=base_name
)
)
else:
proto_storage.initialize_from_file(
file_name=FileUtil.join_paths_to_file(
root_dir=storage.get_latest_dir(),
base_name=base_name
)
)
data = proto_storage.read_all()
for key, val in data.items():
rpc_list_data = RPCIOResponse.RPCListData()
rpc_data = rpc_list_data.data.add()
rpc_data.proto_data.CopyFrom(val)
response.dict_data[key].CopyFrom(rpc_list_data)
else:
# if underlying storage is not proto table.
default_storage = DefaultStorage()
if 'read_oldest' in read_params:
default_storage.initialize_from_file(
file_name=FileUtil.join_paths_to_file(
root_dir=storage.get_oldest_dir_in_root_directory(),
base_name=base_name
)
)
else:
default_storage.initialize_from_file(
file_name=FileUtil.join_paths_to_file(
root_dir=storage.get_latest_dir(),
base_name=base_name
)
)
data = default_storage.read(params={
'num_line': -1,
})
rpc_list_data = RPCIOResponse.RPCListData()
for item in data:
rpc_data = rpc_list_data.data.add()
rpc_data.string_data = item
response.list_data.CopyFrom(rpc_list_data)
else:
# calling read_range function
if 'start_time' in read_params:
read_params['start_time'] = TimezoneUtil.cur_time_from_str(
time_str=read_params['start_time']
)
if 'end_time' in read_params:
read_params['end_time'] = TimezoneUtil.cur_time_from_str(
time_str=read_params['end_time']
)
data = storage.read_range(params=read_params)
if data:
for key, val in data.items():
rpc_list_data = RPCIOResponse.RPCListData()
if is_proto_table:
for proto_key, any_message in val.items():
rpc_data = rpc_list_data.data.add()
rpc_data.string_data = proto_key
rpc_data = rpc_list_data.data.add()
rpc_data.proto_data.CopyFrom(any_message)
else:
for entry in val:
rpc_data = rpc_list_data.data.add()
rpc_data.string_data = entry
response.dict_data[key].CopyFrom(rpc_list_data)
return response
def get_response_and_status_impl(self, request):
if request.is_test:
return self.REQUEST_MESSAGE_TYPE(), Status.SUCCEEDED
response = self._storage_type_to_impl_func[request.type](request=request)
return response, Status.SUCCEEDED
class InstantMessagingRPC(RPCBase):
REQUEST_MESSAGE_TYPE = InstantMessagingRPCRequest
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(), rpc_storage=rpc_storage)
self._type_to_sender_map = {
InstantMessagingType.SLACK: self._send_by_slack,
InstantMessagingType.ROCKETCHAT: self._send_by_rocketchat,
InstantMessagingType.TEAMS: self._send_by_teams,
}
self._logger = LoggingTool(
name='PSLX_INSTANT_MESSAGING_RPC',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL')
)
def get_response_and_status_impl(self, request):
return self._type_to_sender_map[request.type](
is_test=request.is_test,
webhook_url=request.webhook_url,
message=request.message
)
def _send_by_slack(self, is_test, webhook_url, message):
header = {
'Content-Type': "application/x-www-form-urlencoded",
'Cache-Control': "no-cache",
}
status = Status.SUCCEEDED
if not is_test and webhook_url:
slack_payload = "payload={'text':'" + message + "\nCurrent time is "\
+ str(TimezoneUtil.cur_time_in_pst()) + "'}"
try:
requests.post(
webhook_url,
data=slack_payload,
headers=header
)
except Exception as err:
self._logger.error("Slack failed to send message with err " + str(err))
status = Status.FAILED
error_payload = "payload={'text':'" + "Error: " + str(err) + "\nCurrent time is "\
+ str(TimezoneUtil.cur_time_in_pst()) + "'}"
requests.post(
webhook_url,
data=error_payload,
headers=header
)
return None, status
def _send_by_rocketchat(self, is_test, webhook_url, message):
status = Status.SUCCEEDED
if not is_test and webhook_url:
data = {
"text": message + "\nCurrent time is " + str(TimezoneUtil.cur_time_in_pst()) +
'\n-----------------------------------------------'
}
try:
requests.post(webhook_url, json.dumps(data))
except Exception as err:
self._logger.error("Rocketchat failed to send message with err " + str(err))
status = Status.FAILED
error_data = {
"text": "Error: " + str(err) + "\nCurrent time is " + str(TimezoneUtil.cur_time_in_pst()) +
'\n-----------------------------------------------'
}
requests.post(webhook_url, json.dumps(error_data))
return None, status
def _send_by_teams(self, is_test, webhook_url, message):
headers = {
'Content-Type': "application/json"
}
status = Status.SUCCEEDED
if not is_test and webhook_url:
teams_json_data = {
"text": message + ". Current time is " + str(TimezoneUtil.cur_time_in_pst()),
"@content": "http://schema.org/extensions",
"@type": "MessageCard",
}
try:
requests.post(
webhook_url,
json=teams_json_data,
headers=headers
)
except Exception as err:
self._logger.error("Teams failed to send message with err " + str(err))
status = Status.FAILED
error_json_data = {
"text": "Error: " + str(err) + ". Current time is " + str(TimezoneUtil.cur_time_in_pst()),
"@content": "http://schema.org/extensions",
"@type": "MessageCard",
}
requests.post(
webhook_url,
json=error_json_data,
headers=headers
)
return None, status
def __init__(self):
super().__init__(operator_name='ttl_cleaner_op')
self._logger = LoggingTool(
name='PSLX_TTL_CLEANER_OP',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
self._ttl_dir = [EnvUtil.get_pslx_env_variable(var='PSLX_DATABASE')]
class TTLCleanerOp(BatchOperator):
def __init__(self):
super().__init__(operator_name='ttl_cleaner_op')
self._logger = LoggingTool(
name='PSLX_TTL_CLEANER_OP',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
self._ttl_dir = [EnvUtil.get_pslx_env_variable(var='PSLX_DATABASE')]
def watch_dir(self, dir_name):
self._ttl_dir.append(dir_name)
def _recursively_check_dir_deletable(self, dir_name):
if FileUtil.list_files_in_dir(dir_name=dir_name):
return False
sub_dirs = FileUtil.list_dirs_in_dir(dir_name=dir_name)
if sub_dirs:
for sub_dir in sub_dirs:
if not self._recursively_check_dir_deletable(dir_name=sub_dir):
return False
return True
def _delete_file(self, cur_time, path_name):
num_file_removed, num_file_failed = 0, 0
if FileUtil.is_file(path_name=path_name):
ttl = FileUtil.get_ttl_from_path(path_name=path_name)
if ttl and cur_time - FileUtil.get_file_modified_time(
file_name=path_name) > ttl:
self._logger.info("Removing file " + path_name + '...')
try:
with FileLockTool(protected_file_path=path_name,
read_mode=True,
timeout=TimeSleepObj.ONE_TENTH_SECOND):
FileUtil.remove_file(file_name=path_name)
num_file_removed += 1
self.counter_increment("num_file_removed")
except Exception as err:
num_file_failed += 1
self.counter_increment("num_file_failed_to_be_removed")
self._logger.error("Removing file " + path_name +
' failed with err ' + str(err) + '.')
else:
for file_name in FileUtil.list_files_in_dir(dir_name=path_name):
stats = self._delete_file(cur_time=cur_time,
path_name=file_name)
num_file_removed += stats[0]
num_file_failed += stats[1]
for dir_name in FileUtil.list_dirs_in_dir(dir_name=path_name):
stats = self._delete_file(cur_time=cur_time,
path_name=dir_name)
num_file_removed += stats[0]
num_file_failed += stats[1]
return num_file_removed, num_file_failed
def _delete_dir(self, dir_name):
num_dir_removed, num_dir_failed = 0, 0
for sub_dir_name in FileUtil.list_dirs_in_dir(dir_name=dir_name):
if FileUtil.does_dir_exist(
dir_name=sub_dir_name
) and self._recursively_check_dir_deletable(dir_name=sub_dir_name):
self._logger.info("Removing directory " + sub_dir_name + '...')
try:
FileUtil.remove_dir_recursively(dir_name=sub_dir_name)
self.counter_increment("num_directory_removed")
num_dir_removed += 1
except Exception as err:
num_dir_failed += 1
self.counter_increment(
"num_directory_failed_to_be_removed")
self._logger.error("Removing directory " + sub_dir_name +
' failed with err ' + str(err) + '.')
else:
stats = self._delete_dir(dir_name=sub_dir_name)
num_dir_removed += stats[0]
num_dir_failed += stats[1]
return num_dir_removed, num_dir_failed
def execute_impl(self):
start_time = TimezoneUtil.cur_time_in_local()
self._logger.info("TTL cleaner started at " + str(start_time) + '.')
num_file_removed, num_file_failed = 0, 0
for ttl_dir_name in list(set(self._ttl_dir)):
self._logger.info("TTL cleaner starts to check dir " +
ttl_dir_name + " for file deletion.")
stats = self._delete_file(cur_time=start_time,
path_name=ttl_dir_name)
num_file_removed += stats[0]
num_file_failed += stats[1]
self._logger.info("Total number of file removed in this round is " +
str(num_file_removed) + '.')
self._logger.info(
"Total number of file failed to be removed in this round is " +
str(num_file_failed) + '.')
num_dir_removed, num_dir_failed = 0, 0
for ttl_dir_name in list(set(self._ttl_dir)):
self._logger.info("TTL cleaner starts to check dir " +
ttl_dir_name + " for directory deletion.")
stats = self._delete_dir(dir_name=ttl_dir_name)
num_dir_removed += stats[0]
num_dir_failed += stats[1]
self._logger.info(
"Total number of directory removed in this round is " +
str(num_dir_removed) + '.')
self._logger.info(
"Total number of directory failed to be removed in this round is "
+ str(num_dir_failed) + '.')
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from pslx.schema.common_pb2 import FrontendConfig
from pslx.tool.logging_tool import LoggingTool
from pslx.tool.lru_cache_tool import LRUCacheTool
from pslx.util.env_util import EnvUtil
from pslx.util.file_util import FileUtil
CLIENT_NAME = 'PSLX_FRONTEND_UI'
pslx_frontend_ui_app = Flask(__name__)
pslx_frontend_ui_app.config.update(SECRET_KEY=CLIENT_NAME)
pslx_frontend_logger = LoggingTool(
name=CLIENT_NAME,
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
frontend_config_file = EnvUtil.get_pslx_env_variable(
'PSLX_FRONTEND_CONFIG_PROTO_PATH')
assert frontend_config_file != ''
pslx_frontend_ui_app.config['frontend_config'] = FileUtil.read_proto_from_file(
proto_type=FrontendConfig, file_name=frontend_config_file)
pslx_frontend_ui_app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
pslx_frontend_ui_app.config['SQLALCHEMY_DATABASE_URI'] =\
'sqlite:///' + pslx_frontend_ui_app.config['frontend_config'].sqlalchemy_database_path
pslx_frontend_logger.info(
"sqlalchemy database uri " +
str(pslx_frontend_ui_app.config['SQLALCHEMY_DATABASE_URI']) + '.')
pslx_frontend_db = SQLAlchemy(pslx_frontend_ui_app)
def __init__(self, client_name, server_url):
super().__init__(client_name=client_name, server_url=server_url)
self._logger = LoggingTool(
name=client_name,
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
class GenericQueueConsumer(Base):
def __init__(self, consumer_name):
super().__init__()
self._consumer_name = consumer_name
self._logger = LoggingTool(
name=consumer_name,
ttl=EnvUtil.get_pslx_env_variable('PSLX_INTERNAL_TTL'))
self._connection_str = ''
self._exchange = ''
self._connection = None
self._queue = None
self._thread = None
self._has_added_queue = False
def get_consumer_name(self):
return self._consumer_name
def get_connection_str(self):
return self._connection_str
def get_queue_name(self):
if self._queue:
return self._queue.get_queue_name()
else:
return ''
def create_consumer(self, exchange, connection_str):
self.sys_log("Create consumer connection_str [" + connection_str +
'] and exchange [' + exchange + '].')
self._logger.info("Create consumer connection_str [" + connection_str +
'] and exchange [' + exchange + '].')
self._connection_str = connection_str
self._exchange = exchange
self._connection = pika.SelectConnection(
parameters=pika.URLParameters(connection_str),
on_open_callback=self.on_open)
def bind_queue(self, queue):
if self._has_added_queue:
self.sys_log("queue already exist, cannot bind any more.")
self._logger.error("queue already exist, cannot bind any more.")
raise QueueAlreadyExistException(
"queue already exist, cannot bind any more.")
self.sys_log("Binding to queue with name [" + queue.get_queue_name() +
'] to consumer [' + self.get_consumer_name() + '].')
self._logger.info("Binding to queue with name [" +
queue.get_queue_name() + '] to consumer [' +
self.get_consumer_name() + '].')
self._has_added_queue = True
self._queue = queue
def _process_message(self, ch, method, props, body):
try:
generic_request = ProtoUtil.string_to_message(
message_type=GenericRPCRequest, string=base64.b64decode(body))
self._logger.info("Getting request with uuid [" +
generic_request.uuid + '] in consumer [' +
self.get_consumer_name() + '].')
response = self._queue.send_request(request=generic_request)
response_str = ProtoUtil.message_to_string(proto_message=response)
ch.basic_publish(exchange=self._exchange,
routing_key=props.reply_to,
properties=pika.BasicProperties(
correlation_id=props.correlation_id),
body=base64.b64encode(response_str))
except Exception as err:
self._logger.error("Consumer [" + self.get_consumer_name() +
"] processing message with error: " + str(err) +
'.')
def on_open(self, connection):
connection.channel(on_open_callback=self._on_channel_open)
def _on_channel_open(self, channel):
channel.exchange_declare(exchange=self._exchange, durable=True)
channel.queue_delete(queue=self.get_queue_name())
channel.queue_declare(queue=self.get_queue_name(), durable=True)
channel.queue_bind(exchange=self._exchange,
queue=self.get_queue_name(),
routing_key=self.get_queue_name())
channel.basic_consume(queue=self.get_queue_name(),
on_message_callback=self._process_message,
auto_ack=True)
def start_consumer(self):
if not self._connection:
raise QueueConsumerNotInitializedException(
"Queue not initialized for consumer [" +
self.get_consumer_name() + '].')
self._thread = threading.Thread(target=self._connection.ioloop.start,
name=self.get_consumer_name() +
"_thread")
self._thread.daemon = True
self._thread.start()
def stop_consumer(self):
if self._thread:
self._thread.join()
os._exit(1)
def __init__(self, client_name, server_url, root_certificate=None):
super().__init__(client_name=client_name, server_url=server_url)
self._root_certificate = root_certificate
self._logger = LoggingTool(
name=self.get_client_name(),
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
class GenericServer(Base):
def __init__(self, server_name):
super().__init__()
self._server_name = server_name
self._logger = LoggingTool(name=self.get_server_name(),
ttl=os.getenv('PSLX_INTERNAL_TTL', 7))
self._url = None
self._rpc_server = None
self._has_added_rpc = False
def get_server_name(self):
return self._server_name
def get_server_url(self):
return self._url
def create_server(self, max_worker, server_url):
server_url = server_url.replace('http://', '').replace('https://', '')
self.sys_log("Create server with num of workers = " + str(max_worker) +
" and url = " + server_url + ' for server [' +
self.get_server_name() + '].')
self._logger.info("Create server with num of workers = " +
str(max_worker) + " and url = " + server_url +
' for server [' + self.get_server_name() + '].')
self._rpc_server = grpc.server(
futures.ThreadPoolExecutor(max_workers=max_worker))
self._url = server_url
def bind_rpc(self, rpc):
if self._has_added_rpc:
self.sys_log("RPC already exist for server [" +
self.get_server_name() + "], cannot bind any more.")
self._logger.error("RPC already exist for server [" +
self.get_server_name() +
"], cannot bind any more.")
raise RPCAlreadyExistException("RPC already exist for server [" +
self.get_server_name() +
"], cannot bind any more.")
self.sys_log("Server " + self._url + " binding to server [" +
rpc.get_rpc_service_name() + '].')
self._logger.info("Server " + self._url + " binding to server [" +
rpc.get_rpc_service_name() + '].')
add_GenericRPCServiceServicer_to_server(rpc, self._rpc_server)
self._has_added_rpc = True
def start_server(self, private_key=None, certificate_chain=None):
if self._rpc_server:
self._logger.info("Starting server.")
if not private_key or not certificate_chain:
self.sys_log("Warning, channel is not secure.")
self._rpc_server.add_insecure_port(self._url)
else:
server_credentials = grpc.ssl_server_credentials(
((private_key, certificate_chain), ))
self._rpc_server.add_secure_port(self._url, server_credentials)
self._rpc_server.start()
self._rpc_server.wait_for_termination()
else:
self._logger.error("Please create server for " +
self.get_server_name() + " first.")
self.sys_log("Please create server for " + self.get_server_name() +
" first.")
raise RPCServerNotInitializedException(
"Please create server for " + self.get_server_name() +
" first.")
def __init__(self, rpc_storage):
super().__init__(service_name=self.get_class_name(),
rpc_storage=rpc_storage)
self._logger = LoggingTool(
name='PSLX_PROTO_VIEWER_RPC',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL'))
def __init__(self, server_url):
super().__init__(client_name=self.get_class_name(), server_url=server_url)
self._logger = LoggingTool(
name='PSLX_FILE_VIEWER_RPC_CLIENT',
ttl=EnvUtil.get_pslx_env_variable(var='PSLX_INTERNAL_TTL')
)
