NullTracer

Dummy implementation of tracer that doesn’t do anything.

Implements: ITracer

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.

Creates a new instance of the tracer.

NewNullTracer() *NullTracer

Begings recording an operation’s trace

(c *NullTracer) BeginTrace(ctx context.Context, context IContext, component string, operation string) *TraceTiming

ctx: context.Context - operation context.
context: IContext - (optional) a context to trace execution through a call chain.
component: string - name of the called component
operation: string - name of the executed operation.
return: *TraceTiming - trace timing object.

Records an operation’s failure with its name, duration and error

(c *NullTracer) Failure(ctx context.Context, context IContext, component string, operation string, err error, duration int64)

ctx: context.Context - operation context.
context: IContext - (optional) a context to trace execution through a call chain.
component: string - name of the called component
operation: string - name of the executed operation.
err: error - error object associated with this trace.
duration: int64 - execution duration in milliseconds.

Records an operation’s trace with its name and duration.

(c *NullTracer) Trace(ctx context.Context, context IContext, component string, operation string, duration int64)

ctx: context.Context - operation context.
context: IContext - (optional) transaction id used to trace execution through the call chain.
component: string - name of the called component
operation: string - name of the executed operation.
duration: int64 - execution duration in milliseconds.