package

unitelabs.cdk

unitelabs/cdk/__init__.py

Attributes

__version__
= version('unitelabs-cdk')
__all__
= [ "unitelabs.cdk.main.AppFactory", "unitelabs.cdk.config.connector_base_config.CloudServerConfig", "unitelabs.cdk.config.config.ConfigurationError", "unitelabs.cdk.connector.Connector", "unitelabs.cdk.config.connector_base_config.ConnectorBaseConfig", "unitelabs.cdk.subscriptions.publisher.Publisher", "unitelabs.cdk.subscriptions.replay.Replay", "unitelabs.cdk.config.connector_base_config.SiLAServerConfig", "unitelabs.cdk.subscriptions.subject.Subject", "unitelabs.cdk.subscriptions.subscription.Subscription", "unitelabs.cdk.config.config.UnsupportedConfigFiletype", "unitelabs.cdk.logging.create_logger", "unitelabs.cdk.main.run", "unitelabs.cdk.config.config.validate_config" ]

Classes

CloudServerConfig
class
Configuration for a gRPC Cloud Server.
MRO
Config
└ sila.server.cloud_server.CloudServerConfig
└─ CloudServerConfig
Decorators
dataclasses.dataclass
Methods
- __init__(
  self,
  port : typing_extensions.Annotated[int, []],
  root_certificates : str | pathlib.Path | bytes | None,
  certificate_chain : str | pathlib.Path | bytes | None,
  private_key : str | pathlib.Path | bytes | None,
  options : dict
  ) -> None
  port
  typing_extensions.Annotated[int, []] = 50000
  root_certificates
  str | pathlib.Path | bytes | None = None
  certificate_chain
  str | pathlib.Path | bytes | None = None
  private_key
  str | pathlib.Path | bytes | None = None
  options
  dict
- @pydantic.field_validator('hostname')
  @classmethod
  ensure_valid_hostname(cls, value : str) -> str
  Ensure that the hostname is valid.
  value
  str
  str
- @classmethod
  __get_pydantic_json_schema__(
  cls,
  core_schema : pydantic_core.core_schema.CoreSchema,
  handler : pydantic.annotated_handlers.GetJsonSchemaHandler
  ) -> pydantic.json_schema.JsonSchemaValue
  core_schema
  pydantic_core.core_schema.CoreSchema
  handler
  pydantic.annotated_handlers.GetJsonSchemaHandler
  pydantic.json_schema.JsonSchemaValue
- __post_init__(self) -> None
Attributes
- port
  typing_extensions.Annotated[int, []] = 50000
- root_certificates
  str | pathlib.Path | bytes | None = None
  A path to, or the bytestring contents of, the PEM-encoded root certificates, or `None` if no root certificates should be used. Note: TLS must be set to True to activate encryption with this certificate.
- certificate_chain
  str | pathlib.Path | bytes | None = None
  A path to, or the bytestring contents of, the PEM-encoded certificate chain, or `None` if no certificate chain should be used. Note: TLS must be set to True to activate encryption with this certificate.
- private_key
  str | pathlib.Path | bytes | None = None
  A path to, or the bytestring contents of, the PEM-encoded private key, or `None` if no private key should be used. Note: TLS must be set to True to activate encryption with this key.
- options
  dict = dataclasses.field(default_factory=dict)
ConfigurationError
class
Received an invalid configuration.
Bases
ValueError
ConnectorBaseConfig
class
Base configuration for a UniteLabs SiLA2 Connector.
MRO
Config
└ ConnectorBaseConfig
Decorators
dataclasses.dataclass
Methods
- __init__(
  self,
  sila_server : SiLAServerConfig | None,
  cloud_server_endpoint : CloudServerConfig | None,
  discovery : DiscoveryConfig | None,
  logging : dict | None
  ) -> None
  sila_server
  SiLAServerConfig | None
  cloud_server_endpoint
  CloudServerConfig | None
  discovery
  DiscoveryConfig | None
  logging
  dict | None = None
- __post_init__(self) -> None
Attributes
- sila_server
  SiLAServerConfig | None = dataclasses.field(default_factory=SiLAServerConfig)
- cloud_server_endpoint
  CloudServerConfig | None = dataclasses.field(default_factory=CloudServerConfig)
- discovery
  DiscoveryConfig | None = dataclasses.field(default_factory=DiscoveryConfig)
- logging
  dict | None = dataclasses.field(default=None)
  A python `logging.config` which is passed into `dictConfig`. Check the official documentation for more information about the logging config schema: https://docs.python.org/3/library/logging.config.html#logging-config-dictschema
SiLAServerConfig
class
Configuration for a SiLA server.
MRO
Config
└ sila.server.server.ServerConfig
└─ SiLAServerConfig
Decorators
dataclasses.dataclass
Methods
- __init__(
  self,
  root_certificates : str | pathlib.Path | bytes | None,
  certificate_chain : str | pathlib.Path | bytes | None,
  private_key : str | pathlib.Path | bytes | None,
  options : dict,
  uuid : UUIDString,
  name : typing_extensions.Annotated[str, []],
  vendor_url : URIString,
  default_lifetime : float | None
  ) -> None
  root_certificates
  str | pathlib.Path | bytes | None = None
  certificate_chain
  str | pathlib.Path | bytes | None = None
  private_key
  str | pathlib.Path | bytes | None = None
  options
  dict
  uuid
  UUIDString
  name
  typing_extensions.Annotated[str, []] = 'SiLA Server'
  vendor_url
  URIString = 'https://sila-standard.com'
  default_lifetime
  float | None = 3600
- @classmethod
  __get_pydantic_json_schema__(
  cls,
  core_schema : pydantic_core.core_schema.CoreSchema,
  handler : pydantic.annotated_handlers.GetJsonSchemaHandler
  ) -> pydantic.json_schema.JsonSchemaValue
  core_schema
  pydantic_core.core_schema.CoreSchema
  handler
  pydantic.annotated_handlers.GetJsonSchemaHandler
  pydantic.json_schema.JsonSchemaValue
- __post_init__(self) -> None
Attributes
- root_certificates
  str | pathlib.Path | bytes | None = None
  A path to, or the bytestring contents of, the PEM-encoded root certificates, or `None` if no root certificates should be used. Note: TLS must be set to True to activate encryption with this certificate.
- certificate_chain
  str | pathlib.Path | bytes | None = None
  A path to, or the bytestring contents of, the PEM-encoded certificate chain, or `None` if no certificate chain should be used. Note: TLS must be set to True to activate encryption with this certificate.
- private_key
  str | pathlib.Path | bytes | None = None
  A path to, or the bytestring contents of, the PEM-encoded private key, or `None` if no private key should be used. Note: TLS must be set to True to activate encryption with this key.
- options
  dict = dataclasses.field(default_factory=dict)
- uuid
  UUIDString = dataclasses.field(default_factory=(lambda: str(uuid.uuid4())))
- name
  typing_extensions.Annotated[str, []] = 'SiLA Server'
- vendor_url
  URIString = 'https://sila-standard.com'
- default_lifetime
  float | None = 3600
  The default lifetime of observable commands in seconds. This value is measured from the time a command is initiated and determines how long its status and responses remain available on the server before being deleted to free memory.
UnsupportedConfigFiletype
class
The filetype is unsupported for reading/writing config files.
Bases
Exception
Connector
class
Main app.
Methods
- __init__(self, config : ConnectorBaseConfig | None) -> None
  config
  ConnectorBaseConfig | None = None
- start(self) -> None
  Start the connector and all related services.
- stop(self) -> None
  Stop the connector and all related services.
- wait_for_ready(self) -> None
  Wait until the connector is ready.
- wait_for_termination(self) -> None
  Wait until the connector is terminated.
- get_feature(self, feature : type[T]) -> T
  Get the instance of a registered feature by its type.
  feature
  type[T]
  The type of the feature to receive.
  T
  The feature registered with this connector.
- register(self, feature : Feature) -> None
  Register a new feature to this driver.
  feature
  Feature
- on_shutdown(self, handler : Handler) -> None
  Add a shutdown hook to be called in the terminating phase. This will be in response to an explicit call to `app.stop()` or upon receipt of system signals such as SIGINT, SIGTERM or SIGHUP.
  handler
  Handler
  The method to be called on shutdown.
- off_shutdown(self, handler : Handler) -> None
  Remove a previously added shutdown hook.
  handler
  Handler
  The handler to be removed from the shutdown hooks.
Attributes
- __config
  = config or ConnectorBaseConfig()
- _ready
  = asyncio.Event()
- _shutdown
  = asyncio.Event()
- _shutdown_handlers
  list[Handler] = []
- _sila_server
  = None
- _discovery
  = None
- _cloud_server
  = None
- config
  ConnectorBaseConfig = None
  The configuration.
- sila_server
  sila.server.server.Server | None = None
  The SiLA Server.
- logger
  logging.Logger = None
  A standard Python :class:`~logging.Logger` for the app.
- debug
  bool = None
  Whether debug mode is enabled.
Publisher
class
An observable which updates itself by polling a data source.
MRO
Subject
└ Publisher
Bases
typing_extensions.Generic[IN, OUT], Subject[IN, OUT]
Methods
- __init__(
  self,
  source : typing_extensions.Callable[[], collections.abc.Awaitable[IN]] | typing_extensions.Callable[[], IN],
  interval : float,
  maxsize : int,
  pipe : PipeFunction[IN, OUT] | None
  ) -> None
  source
  typing_extensions.Callable[[], collections.abc.Awaitable[IN]] | typing_extensions.Callable[[], IN]
  A function or coroutine that will be called at a fixed interval as the data source of the subscription.
  interval
  float = 5
  How many seconds to wait between polling calls to `source`.
  maxsize
  int = 0
  The maximum number of messages to track in the queue.
  pipe
  PipeFunction[IN, OUT] | None = None
- @typing.override
  on_subscribe(self) -> None
- @typing.override
  _on_subscribe(self, subscription : Subscription) -> None
  subscription
  Subscription
- @typing.override
  on_unsubscribe(self) -> None
- _set(self) -> None
  Create a background task to poll the data `source` and update the current value. Task will be destroyed when all subscriptions to the `Publisher` are removed.
- _unset(self) -> None
  Stop the background task that polls the data `source`. This is called when all subscriptions to the `Publisher` are removed.
- __self_update(self) -> None
Attributes
- _update_task
  asyncio.Task | None = None
- _source
  = source
- _interval
  = interval
Replay
class
Defines how previously emitted values are replayed to new subscribers.
Bases
enum.IntEnum
Attributes
- NONE
  = 0
  Do not replay any previous values. The subscription will only receive values emitted after it is created.
- ALL
  = -1
  Replay all previously emitted values to the new subscriber, in the order they were originally produced.
- CURRENT
  = 1
  Replay only the most recent value (if any) to the new subscriber. If no value has been emitted yet, nothing is replayed.
Subject
class
An observable that can be updated externally and subscribed to by multiple observers.
Bases
typing_extensions.Generic[IN, OUT], contextlib.AbstractContextManager
Methods
- __init__(
  self,
  maxsize : int,
  pipe : PipeFunction[IN, OUT] | None,
  initial_value : OUT | Default
  ) -> None
  maxsize
  int = 0
  The maximum number of messages to track in `Subscription` queues created by `subscribe`.
  pipe
  PipeFunction[IN, OUT] | None = None
  initial_value
  OUT | Default = _DEFAULT_VALUE
  Optionally set an initial value for this subject.
- __repr__(self) -> str
  str
- subscribe(self, replay : Replay | int, distinct : bool) -> Subscription[OUT]
  Add a `Subscription` that will be notified on `update`.
  replay
  Replay | int = NONE
  Controls how many previously emitted values are replayed to the new subscriber.
  distinct
  bool = True
  If True, only emit values when they differ from the previously emitted value.
  Subscription[OUT]
- on_subscribe(self) -> None
  Emit an event when the first subscription is added. Override this method to start external listeners or resources when the first subscriber begins listening.
- _on_subscribe(self, subscription : Subscription) -> None
  Emit an event when `subscribe` is called.
  subscription
  Subscription
- unsubscribe(self, subscriber : Subscription[typing_extensions.Any]) -> None
  Remove a `Subscription`.
  subscriber
  Subscription[typing_extensions.Any]
- on_unsubscribe(self) -> None
  Emit an event when the last subscription is removed. Override this method to perform cleanup or release resources when there are no active subscribers.
- _on_unsubscribe(self) -> None
  Emit an event when `unsubscribe` is called.
- notify(self) -> None
  Propagate the current value to all listening `Subscription`s.
- update(self, value : IN) -> None
  Update the current value and `notify` all listening `Subscription`s.
  value
  IN
- pipe(self, func : typing_extensions.Callable[[], T], temporary : bool) -> Subject[OUT, T]
  Create a new `Subject` with `func` added to the list of pipes that are applied to values recieved from `notify`.
  func
  typing_extensions.Callable[[], T]
  The callable that should be applied to all values seen by the new `Subject`.
  temporary
  bool = False
  Whether or not the pipe should be pruned from its parent on `unsubscribe`.
  Subject[OUT, T]
  A new `Subject` with the pipe function added.
- filter(
  self,
  predicate : typing_extensions.Callable[[], bool | typing_extensions.Any],
  temporary : bool
  ) -> Subject[OUT, OUT]
  Create a new `Subject` that is only notified when the item passes the `predicate`.
  predicate
  typing_extensions.Callable[[], bool | typing_extensions.Any]
  A filter predicate to apply.
  temporary
  bool = False
  Whether the not the filter should be pruned from its parent on `unsubscribe`.
  Subject[OUT, OUT]
  A new `Subject` with the filter applied.
- @typing.override
  __enter__(self) -> Subscription[OUT]
  Return a new `Subscription` upon entering the runtime context.
  Subscription[OUT]
  The newly created `Subscription`.
- @typing.override
  __exit__(
  self,
  exc_type : type[BaseException] | None,
  exc_value : BaseException | None,
  traceback : types.TracebackType | None
  ) -> bool
  exc_type
  type[BaseException] | None = None
  exc_value
  BaseException | None = None
  traceback
  types.TracebackType | None = None
  bool
Attributes
- _maxsize
  = maxsize
- _values
  = collections.deque[OUT](iterable=([initial_value] if not isinstance(initial_value, Default) else []), maxlen=(maxsize or None))
- _total_subscribers
  = 0
- _subscribers
  list[Subscription[OUT]] = []
- _children
  list[Subject[OUT, typing_extensions.Any]] = []
- _parent
  Subject | None = None
- _is_temporary
  = False
- _context
  Subscription[OUT] | None = None
- _callbacks
  set[asyncio.Task] = set()
- _pipe
  PipeFunction[IN, OUT] = pipe or default_pipe
- current
  OUT | Default = None
  The current value.
- subscribers
  list[Subscription[OUT]] = None
  All `Subscription`s listening to this `Subject`.
- has_subscribers
  bool = None
  Whether any `Subject` listens to this `Subscription`.
Subscription
class
An AsyncIterable you can asynchronously add items to.
Bases
asyncio.Queue[T], collections.abc.AsyncIterator[T]
Methods
- __init__(
  self,
  maxsize : int,
  parent : Subject,
  distinct : bool
  ) -> None
  maxsize
  int
  parent
  Subject
  distinct
  bool = True
- __repr__(self) -> str
  str
- update(self, value : T) -> None
  Update the current value. Observers are only informed about this change if the subscription is either not set to distinct mode or the value differs from the current one.
  value
  T
  The updated value.
- cancel(self) -> None
  Cancel the subscription.
- terminate(self) -> None
  Unsubscribe the subscription from its parent.
- __aiter__(self) -> collections.abc.AsyncIterator[T]
  collections.abc.AsyncIterator[T]
- __anext__(self) -> T
  T
- get(
  self,
  predicate : typing_extensions.Callable[[], bool],
  timeout : float | None
  ) -> T
  Request an upcoming value that satisfies the `predicate`. If used without `timeout` this will block indefinitely until a value satisfies the `predicate`.
  predicate
  typing_extensions.Callable[[], bool]
  A filter predicate to apply.
  timeout
  float | None = None
  How many seconds to wait for new value before timing out.
  T
Attributes
- _distinct
  = distinct
- _parent
  Subject = weakref.proxy(parent)
- _value
  T | Default = typing.cast(T, _DEFAULT_VALUE)
- _closed
  = asyncio.Event()
- size
  int = None
  The number of items in the queue.

unitelabs.cdk

Packages

Attributes

Classes

CloudServerConfig

Methods

Attributes

ConfigurationError

ConnectorBaseConfig

Methods

Attributes

SiLAServerConfig

Methods

Attributes

UnsupportedConfigFiletype

Connector

Methods

Attributes

Publisher

Methods

Attributes

Replay

Attributes

Subject

Methods

Attributes

Subscription

Methods

Attributes