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https://issues.apache.org/jira/browse/CAMEL-23555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen resolved CAMEL-23555.
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Resolution: Fixed
> Per-operation HTTP metrics for REST services in RestRegistry
> ------------------------------------------------------------
>
> Key: CAMEL-23555
> URL: https://issues.apache.org/jira/browse/CAMEL-23555
> Project: Camel
> Issue Type: Improvement
> Components: camel-core
> Reporter: Claus Ibsen
> Assignee: Claus Ibsen
> Priority: Major
> Fix For: 4.21.0
>
>
> The RestRegistry tracks REST services (GET /foo, GET /foo/{id}, DELETE
> /foo/{id}, etc.) but has no per-operation hit counters. This means the TUI
> HTTP tab and dev console cannot show how many times each individual REST
> endpoint has been called.
> This is especially important for contract-first (OpenAPI) REST services where
> all operations share a single route and a single RestOpenApiProcessor — there
> are no per-operation routes, so the existing RuntimeEndpointRegistry counters
> only show aggregate totals.
> The fix adds per-operation hit tracking to RestRegistry for both code-first
> and contract-first REST:
> *Code-first:* DefaultRestRegistry is extended to be an EventNotifier. It
> listens for ExchangeCreatedEvent, matches by routeId, and increments a
> per-operation counter. Each code-first REST operation has its own route with
> a unique routeId, making this straightforward.
> *Contract-first:* RestOpenApiProcessor.process() already resolves which
> specific OpenAPI operation is being invoked via matchBestPath(). After
> matching, it calls restRegistry.hit(verb, basePath, path) to record the hit
> on the correct operation.
> Changes:
> - RestRegistry.RestService: add getHits() method
> - RestRegistry: add hit(method, basePath, path) method
> - DefaultRestRegistry: extend EventNotifierSupport, add AtomicLong counters
> per RestServiceEntry, routeId index for fast lookup
> - RestOpenApiProcessor: call restRegistry.hit() after operation match
> - RestDevConsole: expose hits in JSON output
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