RSDK-5985 - per-resource logging (#769)

src/viam/components/board/client.py

@@ -5,7 +5,6 @@
 from grpclib.client import Channel
 from grpclib.client import Stream as ClientStream
 
-from viam.logging import getLogger
 from viam.proto.common import DoCommandRequest, DoCommandResponse, Geometry
 from viam.proto.component.board import (
     BoardServiceStub,
@@ -33,8 +32,6 @@
 
 from .board import Board, TickStream
 
-LOGGER = getLogger(__name__)
-
 
 class AnalogClient(Board.Analog):
     def __init__(self, name: str, board: "BoardClient"):

src/viam/components/component_base.py

@@ -1,9 +1,11 @@
 import abc
+from logging import Logger
 from typing import TYPE_CHECKING, Any, ClassVar, Dict, List, Mapping, Optional, SupportsBytes, SupportsFloat, Union, cast
 
 from typing_extensions import Self
 
 from viam.errors import MethodNotImplementedError
+from viam.logging import getLogger
 from viam.proto.common import Geometry
 from viam.resource.base import ResourceBase
 
@@ -23,8 +25,9 @@ class ComponentBase(abc.ABC, ResourceBase):
 
     SUBTYPE: ClassVar["Subtype"]
 
-    def __init__(self, name: str):
+    def __init__(self, name: str, *, logger: Optional[Logger] = None):
         self.name = name
+        self.logger = logger if logger is not None else getLogger(f'{self.SUBTYPE}.{name}')
 
     @classmethod
     def from_robot(cls, robot: "RobotClient", name: str) -> Self:

src/viam/logging.py

@@ -83,7 +83,8 @@ async def handle_task_result(self, task: asyncio.Task):
 
     def emit(self, record: logging.LogRecord):
         assert isinstance(record, logging.LogRecord)
-        name = record.name.split(".")[-1]
+        # Fully qualified name of form "{subtype triplet}/{name}", e.g. "rdk:component:arm/myarm"
+        name = record.name.replace('.', '/')
         message = f"{record.filename}:{record.lineno}\t{record.getMessage()}"
         stack = f"exc_info: {record.exc_info}, exc_text: {record.exc_text}, stack_info: {record.stack_info}"
         time = datetime.fromtimestamp(record.created)
@@ -151,6 +152,14 @@ def addHandlers(logger: logging.Logger, use_default_handlers=False):
     _addHandlers([logger], use_default_handlers)
 
 
+def update_log_level(logger: logging.Logger, level: Union[int, str]):
+    if level == '':
+        level = LOG_LEVEL
+    logger.setLevel(level)
+    for handler in logger.handlers:
+        handler.setLevel(level)
+
+
 def _addHandlers(loggers: Iterable[logging.Logger], use_default_handlers=False):
     format = _ColorFormatter("%(asctime)s\t\t" + "%(levelname)s\t" + "%(name)s (%(filename)s:%(lineno)d)\t" + "%(message)s\t")
 

src/viam/module/module.py

@@ -11,6 +11,7 @@
 
 from viam import logging
 from viam.errors import ResourceNotFoundError, ValidationError
+from viam.logging import update_log_level
 from viam.proto.app.robot import ComponentConfig
 from viam.proto.module import (
     AddResourceRequest,
@@ -183,6 +184,7 @@ async def add_resource(self, request: AddResourceRequest):
         model = Model.from_string(config.model, ignore_errors=True)
         creator = Registry.lookup_resource_creator(subtype, model)
         resource = creator(config, dependencies)
+        update_log_level(resource.logger, config.log_configuration.level.upper())
         self.server.register(resource)
 
     async def reconfigure_resource(self, request: ReconfigureResourceRequest):

src/viam/resource/base.py

@@ -1,5 +1,6 @@
 from abc import abstractmethod
 from typing import TYPE_CHECKING, Any, ClassVar, Mapping, Optional, Protocol, runtime_checkable
+from logging import Logger
 
 from typing_extensions import Self
 
@@ -25,6 +26,9 @@ class ResourceBase(Protocol):
     name: str
     """The name of the Resource"""
 
+    logger: Logger
+    """A logger allowing for setting log levels on a per-resource basis"""
+
     @classmethod
     def get_resource_name(cls, name: str) -> ResourceName:
         """

src/viam/services/service_base.py

@@ -1,8 +1,10 @@
 import abc
+from logging import Logger
 from typing import TYPE_CHECKING, ClassVar, Mapping, Optional, cast
 
 from typing_extensions import Self
 
+from viam.logging import getLogger
 from viam.resource.base import ResourceBase
 from viam.utils import ValueTypes
 
@@ -18,8 +20,9 @@ class ServiceBase(abc.ABC, ResourceBase):
 
     SUBTYPE: ClassVar["Subtype"]
 
-    def __init__(self, name: str) -> None:
+    def __init__(self, name: str, *, logger: Optional[Logger] = None) -> None:
         self.name = name
+        self.logger = logger if logger is not None else getLogger(f'{self.SUBTYPE}.{name}')
 
     @classmethod
     def from_robot(cls, robot: "RobotClient", name: str) -> Self: