"""Factory for a thumbnailer application."""
from __future__ import annotations
from typing import (
TYPE_CHECKING,
Literal,
)
from eclypse.builders.application._helpers import (
build_application_from_specs,
)
if TYPE_CHECKING:
from eclypse.graph import Application
from eclypse.graph.assets import Asset
from eclypse.utils.types import (
CommunicationInterface,
InitPolicy,
UpdatePolicies,
)
[docs]
def get_thumbnailer(
application_id: str = "Thumbnailer",
communication_interface: CommunicationInterface | None = None,
update_policies: UpdatePolicies = None,
node_assets: dict[str, Asset] | None = None,
edge_assets: dict[str, Asset] | None = None,
include_default_assets: bool = False,
requirement_init: InitPolicy = "min",
flows: Literal["default"] | list[list[str]] = "default",
store_step: bool = False,
seed: int | None = None,
) -> Application:
"""Get the thumbnailer application.
Args:
application_id (str): Identifier assigned to the generated application.
communication_interface (CommunicationInterface | None):
Communication backend used to instantiate executable services. When
``None``, the builder returns a graph-only application.
update_policies (Callable | list[Callable] | None):
Graph update policies executed during ``evolve()``.
node_assets (dict[str, Asset] | None):
Optional assets attached to application nodes.
edge_assets (dict[str, Asset] | None):
Optional assets attached to application edges.
include_default_assets (bool):
Whether default graph assets should be included in the application.
requirement_init (InitPolicy):
Initialisation strategy applied to node and edge requirements.
flows (Literal["default"] | list[list[str]]):
User-defined application flows. Use ``"default"`` to install the
benchmark's built-in media-processing flow.
store_step (bool):
Whether instantiated services should store their step outputs in
the internal step queue. Ignored when
``communication_interface`` is ``None``.
seed (int | None):
Seed forwarded to the application random generator.
Returns:
Application: The configured thumbnailer application.
Raises:
ValueError: If ``communication_interface`` is not supported.
"""
default_flows = [
[
"UploadService",
"TransformService",
"StorageService",
"NotificationService",
"UploadService",
]
]
service_names = [
"NotificationService",
"StorageService",
"TransformService",
"UploadService",
]
node_requirements = {
"UploadService": {
"cpu": 0.5,
"gpu": 0,
"ram": 0.25,
"storage": 0.25,
"availability": 0.98,
"processing_time": 3,
},
"TransformService": {
"cpu": 2,
"gpu": 0.5,
"ram": 1.0,
"storage": 0.5,
"availability": 0.96,
"processing_time": 8,
},
"StorageService": {
"cpu": 1,
"gpu": 0,
"ram": 0.5,
"storage": 1.5,
"availability": 0.97,
"processing_time": 5,
},
"NotificationService": {
"cpu": 0.5,
"gpu": 0,
"ram": 0.25,
"storage": 0.1,
"availability": 0.99,
"processing_time": 2,
},
}
edge_requirements = [
(
"UploadService",
"TransformService",
{"symmetric": True, "latency": 8, "bandwidth": 8},
),
(
"TransformService",
"StorageService",
{"symmetric": True, "latency": 10, "bandwidth": 10},
),
(
"UploadService",
"StorageService",
{"symmetric": True, "latency": 9, "bandwidth": 8},
),
(
"StorageService",
"NotificationService",
{"symmetric": True, "latency": 5, "bandwidth": 3},
),
(
"NotificationService",
"UploadService",
{"symmetric": True, "latency": 4, "bandwidth": 2},
),
]
return build_application_from_specs(
application_id=application_id,
communication_interface=communication_interface,
update_policies=update_policies,
node_assets=node_assets,
edge_assets=edge_assets,
include_default_assets=include_default_assets,
requirement_init=requirement_init,
flows=flows,
store_step=store_step,
default_flows=default_flows,
service_names=service_names,
node_requirements=node_requirements,
edge_requirements=edge_requirements,
seed=seed,
package_name=__package__,
)
