Dummy implementation of tracer that doesn’t do anything.
Implements: ITracer
Description
The NullTracer class allows you to create a dummy tracer with no real effect.
Important points
- It can be used in testing or in situations when tracing is required but must be disabled.
Instance methods
begin_trace
Begings recording an operation trace
begin_trace(context: Optional[IContext], component: str, operation: str): TraceTiming
- context: IContext - (optional) a context to trace execution through a call chain.
- component: str - name of the called component
- operation: str - name of the executed operation.
- return: TraceTiming - a trace timing object.
failure
Records an operation failure with its name, duration and error
failure(context: Optional[IContext], component: str, operation: str, error: Exception, duration: float)
- context: IContext - (optional) a context to trace execution through a call chain.
- component: str - name of the called component
- operation: str - name of the executed operation.
- error: Exception - an error object associated with this trace.
- duration: float - execution duration in milliseconds.
trace
Records an operation trace with its name and duration.
trace(context: Optional[IContext], component: str, operation: str, duration: float)
- context: IContext - (optional) a context to trace execution through a call chain.
- component: str - name of the called component
- operation: str - name of the executed operation.
- duration: float - execution duration in milliseconds.