MethodChannelOpentelemetry class
An implementation of OpentelemetryPlatform that uses method channels.
- Inheritance
-
- Object
- PlatformInterface
- OpentelemetryPlatform
- MethodChannelOpentelemetry
Constructors
Properties
- exportChannel → MethodChannel
-
Span-export channel. On Android its native handler runs on a background
TaskQueue, so per-span pushes never touch the platform (main) thread and
keep flowing even while the main thread is blocked.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- methodChannel → MethodChannel
-
The method channel used to interact with the native platform.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- startupChannel → MethodChannel
-
Startup channel. Runs on a background TaskQueue on both platforms, so a
startup message never queues behind the main thread during launch — the
very window in which every one of these is sent.
final
Methods
-
droppedAppStartWrites(
) → Future< int> -
Cumulative native app-start events/attributes dropped because
app.starthad already closed. Android-only; other platforms return 0.override -
exportSpans(
List< Map< spans) → Future<String, dynamic> >void> -
Forwards a batch of ended spans (serialized via ReadOnlySpan.toJson)
to the native layer, which owns the single telemetry egress.
override
-
flushSpans(
) → Future< bool> -
Asks the native layer to persist its in-memory bridge queue to the disk
buffer, completing only once the spans are durable. Returns false when
the flush could not be confirmed (or the platform has no native bridge).
override
-
initialize(
InitializationParams params) → Future< String?> -
override
-
markTimeToDisplay(
{String reason = 'flutter_first_frame'}) → Future< void> -
Signals native that the app has reached its first meaningful display
(Time-To-Initial / Time-To-Full Display), closing the native
app.startspan so it can be emitted.override -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
publishFlutterActionContext(
dynamic spanContext, Duration window) → Future< void> -
Publishes the current user-action span context to native along with an
expiry (
windowfrom now), so native span creators can parent to it while the action window is open.override -
recordAppStartAttribute(
String key, String value) → Future< void> -
Sets an attribute on the in-flight native cold-start
app.startspan.override -
recordAppStartEvent(
String name, int epochMs) → Future< void> -
Stamps an event onto the in-flight native cold-start
app.startspan.override -
setGlobalAttributes(
Map< String, String> attributes) → Future<void> -
Merges app-provided attributes into the native layer's global attribute
set. Native applies them to every subsequent span and log — both
native-origin and bridged Dart spans — so this is the single write path
for runtime attribute updates on Android.
override
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited