InvokeAI/invokeai/app/api/dependencies.py
psychedelicious 2a35d93a4d feat(backend): organise service dependencies
**Service Dependencies**

Services that depend on other services now access those services via the `Invoker` object. This object is provided to the service as a kwarg to its `start()` method.

Until now, most services did not utilize this feature, and several services required their dependencies to be initialized and passed in on init.

Additionally, _all_ services are now registered as invocation services - including the low-level services. This obviates issues with inter-dependent services we would otherwise experience as we add workflow storage.

**Database Access**

Previously, we were passing in a separate sqlite connection and corresponding lock as args to services in their init. A good amount of posturing was done in each service that uses the db.

These objects, along with the sqlite startup and cleanup logic, is now abstracted into a simple `SqliteDatabase` class. This creates the shared connection and lock objects, enables foreign keys, and provides a `clean()` method to do startup db maintenance.

This is not a service as it's only used by sqlite services.
2023-10-12 12:15:06 -04:00

128 lines
5.0 KiB
Python

# Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
from logging import Logger
from invokeai.app.services.board_image_record_storage import SqliteBoardImageRecordStorage
from invokeai.app.services.board_images import BoardImagesService
from invokeai.app.services.board_record_storage import SqliteBoardRecordStorage
from invokeai.app.services.boards import BoardService
from invokeai.app.services.config import InvokeAIAppConfig
from invokeai.app.services.image_record_storage import SqliteImageRecordStorage
from invokeai.app.services.images import ImageService
from invokeai.app.services.invocation_cache.invocation_cache_memory import MemoryInvocationCache
from invokeai.app.services.resource_name import SimpleNameService
from invokeai.app.services.session_processor.session_processor_default import DefaultSessionProcessor
from invokeai.app.services.session_queue.session_queue_sqlite import SqliteSessionQueue
from invokeai.app.services.shared.db import SqliteDatabase
from invokeai.app.services.urls import LocalUrlService
from invokeai.backend.util.logging import InvokeAILogger
from invokeai.version.invokeai_version import __version__
from ..services.default_graphs import create_system_graphs
from ..services.graph import GraphExecutionState, LibraryGraph
from ..services.image_file_storage import DiskImageFileStorage
from ..services.invocation_queue import MemoryInvocationQueue
from ..services.invocation_services import InvocationServices
from ..services.invocation_stats import InvocationStatsService
from ..services.invoker import Invoker
from ..services.latent_storage import DiskLatentsStorage, ForwardCacheLatentsStorage
from ..services.model_manager_service import ModelManagerService
from ..services.processor import DefaultInvocationProcessor
from ..services.sqlite import SqliteItemStorage
from .events import FastAPIEventService
# TODO: is there a better way to achieve this?
def check_internet() -> bool:
"""
Return true if the internet is reachable.
It does this by pinging huggingface.co.
"""
import urllib.request
host = "http://huggingface.co"
try:
urllib.request.urlopen(host, timeout=1)
return True
except Exception:
return False
logger = InvokeAILogger.get_logger()
class ApiDependencies:
"""Contains and initializes all dependencies for the API"""
invoker: Invoker
@staticmethod
def initialize(config: InvokeAIAppConfig, event_handler_id: int, logger: Logger = logger):
logger.info(f"InvokeAI version {__version__}")
logger.info(f"Root directory = {str(config.root_path)}")
logger.debug(f"Internet connectivity is {config.internet_available}")
output_folder = config.output_path
db = SqliteDatabase(config, logger)
configuration = config
logger = logger
board_image_records = SqliteBoardImageRecordStorage(db=db)
board_images = BoardImagesService()
board_records = SqliteBoardRecordStorage(db=db)
boards = BoardService()
events = FastAPIEventService(event_handler_id)
graph_execution_manager = SqliteItemStorage[GraphExecutionState](db=db, table_name="graph_executions")
graph_library = SqliteItemStorage[LibraryGraph](db=db, table_name="graphs")
image_files = DiskImageFileStorage(f"{output_folder}/images")
image_records = SqliteImageRecordStorage(db=db)
images = ImageService()
invocation_cache = MemoryInvocationCache(max_cache_size=config.node_cache_size)
latents = ForwardCacheLatentsStorage(DiskLatentsStorage(f"{output_folder}/latents"))
model_manager = ModelManagerService(config, logger)
names = SimpleNameService()
performance_statistics = InvocationStatsService()
processor = DefaultInvocationProcessor()
queue = MemoryInvocationQueue()
session_processor = DefaultSessionProcessor()
session_queue = SqliteSessionQueue(db=db)
urls = LocalUrlService()
services = InvocationServices(
board_image_records=board_image_records,
board_images=board_images,
board_records=board_records,
boards=boards,
configuration=configuration,
events=events,
graph_execution_manager=graph_execution_manager,
graph_library=graph_library,
image_files=image_files,
image_records=image_records,
images=images,
invocation_cache=invocation_cache,
latents=latents,
logger=logger,
model_manager=model_manager,
names=names,
performance_statistics=performance_statistics,
processor=processor,
queue=queue,
session_processor=session_processor,
session_queue=session_queue,
urls=urls,
)
create_system_graphs(services.graph_library)
ApiDependencies.invoker = Invoker(services)
db.clean()
@staticmethod
def shutdown():
if ApiDependencies.invoker:
ApiDependencies.invoker.stop()