feat(components): micrometer supports prometheus format

[squakez]

Add a conversion to support the feature from this component instead of the prometheus one

Ref CAMEL-24356

Description

Target

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[github-actions]

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[github-actions]

🧪 CI tested the following changed modules:

• catalog/camel-catalog
• components/camel-micrometer-prometheus
• components/camel-micrometer
• core/camel-main

ℹ️ Dependent modules were not tested because the total number of affected modules exceeded the threshold (50). Use the test-dependents label to force testing all dependents.

---

🔬 Scalpel shadow comparison — Scalpel: 65 tested, 28 compile-only — current: 64 all tested

Maveniverse Scalpel detected 93 affected modules (current approach: 64).

⚠️ Modules only in Scalpel (29)

• apache-camel
• camel-allcomponents
• camel-catalog
• camel-catalog-console
• camel-catalog-lucene
• camel-catalog-maven
• camel-catalog-suggest
• camel-componentdsl
• camel-csimple-maven-plugin
• camel-endpointdsl
• camel-endpointdsl-support
• camel-itest
• camel-jbang-core
• camel-jbang-it
• camel-jbang-main
• camel-jbang-plugin-edit
• camel-jbang-plugin-generate
• camel-jbang-plugin-kubernetes
• camel-jbang-plugin-test
• camel-kamelet-main
• camel-launcher
• camel-report-maven-plugin
• camel-route-parser
• camel-yaml-dsl
• camel-yaml-dsl-deserializers
• camel-yaml-dsl-maven-plugin
• coverage
• docs
• dummy-component

Skip-tests mode would test 65 modules (4 direct + 61 downstream), skip tests for 28 (generated code, meta-modules)

Modules Scalpel would test (65)

• camel-a2a
• camel-as2
• camel-catalog
• camel-clickup
• camel-consul
• camel-core-all
• camel-csv
• camel-fhir
• camel-groovy
• camel-hazelcast
• camel-hl7
• camel-ibm-watsonx-ai
• camel-iso8583
• camel-java-joor-dsl
• camel-jbang-mcp
• camel-jbang-plugin-mcp
• camel-jbang-plugin-route-parser
• camel-jbang-plugin-tui
• camel-jbang-plugin-validate
• camel-jetty
• camel-jsonpath
• camel-kamelet
• camel-kamelet-main-support
• camel-knative-http
• camel-launcher-container
• camel-mail
• camel-mail-microsoft-oauth
• camel-main
• camel-maven-plugin
• camel-mcp-server
• camel-micrometer
• camel-micrometer-prometheus
• camel-microprofile-health
• camel-netty
• camel-netty-http
• camel-oauth
• camel-observability-services
• camel-once
• camel-openapi-validator
• camel-platform-http-main
• camel-platform-http-vertx
• camel-plc4x
• camel-pubnub
• camel-quickfix
• camel-resilience4j-micrometer
• camel-rest-openapi
• camel-restdsl-openapi-plugin
• camel-salesforce
• camel-salesforce-codegen
• camel-salesforce-maven-plugin
• camel-spring-main
• camel-syslog
• camel-telegram
• camel-test-main-junit5
• camel-test-main-junit6
• camel-vertx-websocket
• camel-webhook
• camel-whatsapp
• camel-xml-io-dsl
• camel-xml-jaxb-dsl
• camel-xml-jaxb-dsl-test-definition
• camel-xml-jaxb-dsl-test-spring
• camel-yaml-dsl-validator
• camel-yaml-dsl-validator-maven-plugin
• camel-zookeeper

Modules with tests skipped (28)

• apache-camel
• camel-allcomponents
• camel-catalog-console
• camel-catalog-lucene
• camel-catalog-maven
• camel-catalog-suggest
• camel-componentdsl
• camel-csimple-maven-plugin
• camel-endpointdsl
• camel-endpointdsl-support
• camel-itest
• camel-jbang-core
• camel-jbang-it
• camel-jbang-main
• camel-jbang-plugin-edit
• camel-jbang-plugin-generate
• camel-jbang-plugin-kubernetes
• camel-jbang-plugin-test
• camel-kamelet-main
• camel-launcher
• camel-report-maven-plugin
• camel-route-parser
• camel-yaml-dsl
• camel-yaml-dsl-deserializers
• camel-yaml-dsl-maven-plugin
• coverage
• docs
• dummy-component

ℹ️ Shadow mode — Scalpel observes but does not affect test execution. Learn more

Build reactor — dependencies compiled but only changed modules were tested (93 modules)

• Camel :: AI :: A2A
• Camel :: AI :: MCP Server
• Camel :: AS2 :: Component
• Camel :: All Components Sync point
• Camel :: All Core Sync point
• Camel :: Assembly
• Camel :: CSV
• Camel :: Catalog :: CSimple Maven Plugin (deprecated)
• Camel :: Catalog :: Camel Catalog
• Camel :: Catalog :: Camel Report Maven Plugin
• Camel :: Catalog :: Camel Route Parser
• Camel :: Catalog :: Console
• Camel :: Catalog :: Dummy Component
• Camel :: Catalog :: Lucene (deprecated)
• Camel :: Catalog :: Maven
• Camel :: Catalog :: Suggest
• Camel :: ClickUp
• Camel :: Component DSL
• Camel :: Consul
• Camel :: Coverage
• Camel :: Docs
• Camel :: Endpoint DSL
• Camel :: Endpoint DSL :: Support
• Camel :: FHIR
• Camel :: Groovy
• Camel :: HL7
• Camel :: HazelCast
• Camel :: IBM :: watsonx.ai
• Camel :: ISO-8583
• Camel :: Integration Tests
• Camel :: JBang :: Core
• Camel :: JBang :: Integration tests
• Camel :: JBang :: MCP
• Camel :: JBang :: Main
• Camel :: JBang :: Plugin :: Edit
• Camel :: JBang :: Plugin :: Generate
• Camel :: JBang :: Plugin :: Kubernetes
• Camel :: JBang :: Plugin :: MCP
• Camel :: JBang :: Plugin :: Route Parser
• Camel :: JBang :: Plugin :: TUI
• Camel :: JBang :: Plugin :: Testing
• Camel :: JBang :: Plugin :: Validate
• Camel :: JSon Path
• Camel :: Java DSL with jOOR
• Camel :: Jetty
• Camel :: Kamelet
• Camel :: Kamelet Main
• Camel :: Kamelet Main :: Support
• Camel :: Knative HTTP
• Camel :: Launcher
• Camel :: Launcher :: Container
• Camel :: Mail
• Camel :: Mail :: Microsoft OAuth
• Camel :: Main
• Camel :: Maven Plugins :: Camel Maven Plugin
• Camel :: Maven Plugins :: OpenApi REST DSL Generator
• Camel :: MicroProfile :: Health
• Camel :: Micrometer
• Camel :: Micrometer :: Prometheus
• Camel :: Netty
• Camel :: Netty HTTP
• Camel :: OAuth
• Camel :: Observability Services
• Camel :: Once
• Camel :: OpenAPI :: Validator
• Camel :: PLC4X
• Camel :: Platform HTTP :: Main
• Camel :: Platform HTTP :: Vert.x
• Camel :: PubNub
• Camel :: QuickFIX/J
• Camel :: REST OpenApi
• Camel :: Resilience4j :: Micrometer
• Camel :: Salesforce
• Camel :: Salesforce :: CodeGen
• Camel :: Salesforce :: Maven Plugin
• Camel :: Spring Main
• Camel :: Syslog
• Camel :: Telegram
• Camel :: Test :: Main :: JUnit5
• Camel :: Test :: Main :: JUnit6
• Camel :: Vert.x :: WebSocket
• Camel :: Webhook
• Camel :: Whatsapp
• Camel :: XML DSL Jaxb :: Test :: Definition
• Camel :: XML DSL Jaxb :: Test :: Spring
• Camel :: XML DSL with camel-xml-io
• Camel :: XML DSL with camel-xml-jaxb
• Camel :: YAML DSL
• Camel :: YAML DSL :: Deserializers
• Camel :: YAML DSL :: Maven Plugins
• Camel :: YAML DSL :: Validator
• Camel :: YAML DSL :: Validator Maven Plugin
• Camel :: Zookeeper

---

⚙️ View full build and test results

[davsclaus]

Nice work moving the Prometheus format support down to camel-micrometer — making it available without the Prometheus registry dependency is a good architectural improvement. The test coverage is thorough.

A few items below — one naming concern and two minor style points.

Note: This review covers project rules, conventions, and code correctness visible from the diff. It does not replace specialized review tools (CodeRabbit, Sourcery) or static analyzers (SonarCloud).

This review was generated by an AI agent and may contain inaccuracies. Please verify all suggestions before applying.

[davsclaus]

Thanks for moving the Prometheus format support down to camel-micrometer — nice refactor that makes the feature available without requiring the prometheus extension.

I found one code-quality issue that should be fixed before merging, plus a convention item.

This review focuses on project conventions and code correctness. It does not replace specialized review tools (CodeRabbit, Sourcery) or static analyzers (SonarCloud).

This review was generated by an AI agent and may contain inaccuracies. Please verify all suggestions before applying.