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Community Driven Progress
Application Servers: Old-School Scaling
AS-spec.
Cluster
Controller
AS-spec.
Node 1
AS-spec.
Node 2
AS-spec.
Node …
AS-spec.
Node n
JAX-RS ApplicationJAX-RS Application
JAX-RS Container
Java EE Application Server
Java Runtime
Operating System
Bare Metal
Clustered Application Server Nodes
e. g. GlassFish including Jersey
AS-specific Cluster
Cloud Computing: The Modern Approach
Kub.’tes
Cluster
Controller
Kub.’tes
Node 1
Kub.’tes
Node 2
Kub.’tes
Node …
Kub.’tes
Node n
JAX-RS ApplicationJAX-RS Application
JAX-RS Container
Java Runtime
Docker
Kubernetes
Operating System
Bare Metal
Elastic creation and disposal of lightweight
processes (e. g. Kubernetes with Docker)
Kubernetes Cluster
JAX-RS ApplicationJAX-RS Application
JAX-RS Container
Java Runtime
Docker
Container
Docker
Container
Docker
Container
Docker
Container
Docker
Container
Docker
Container
Docker
Container
Cloud Computing
JAX-RS + Netty + Docker + … = Cloud Native Java
RESTful Devices
5 x 2,5 cm
1 Core @ 1 GHz
256 MB RAM
100 Mb/s LAN
$ 10
Try to start GlassFish...
Effects upon JAX-RS
JAX-RS ApplicationJAX-RS Application
JAX-RS Container
Java Runtime
Container Runtime
Container Orchestration
Operating System
Bare Metal
JAX-RS ApplicationJAX-RS Application
JAX-RS Container
Java Runtime
should start and stop instantly
should consume less resources
must provide http server
must read external config
must accept application-provided resources
R.I.P
WORA
Java SE 11: JAXB → <dependency>
JAX-RS 2.2: javax.ws.rs → jakarta.ws.rs
JAX-RS 3.0: @Context → @Inject
WARNING!
Roadmap
JAX-RS 2.2: Java SE Bootstrap API
instant on/off
low resource
includes http server
reads external config
(optional) support for Microprofile Config API
https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
DELAYED
Roadmap
JAX-RS 2.3: Support for CDI 2.0 SE
Deprecate @Context
Support for ContextResolver<Jsonb>
(accept application-provided resources)
https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
Roadmap
JAX-RS 2.4: JPMS, Java 9+
https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
Roadmap
JAX-RS 3.0: Replace @Context by @Inject
WARNING: You MUST use CDI now!
https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
Roadmap
JAX-RS 3.1: Flow API, NIO
…
https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
JAX-RS 2.2: Java SE Bootstrap API
instant on/off – boot in one second
low resource – run on limited devices
includes http server – choose by actual need
reads external config – from app, controller or orchestrator
optional support for Microprofile Config API – cloud
standards
Bleeding Edge Cookbook
Java SE 8, Maven 3.6.1
maven-shade-plugin: master
jax-rs 2.2: d5f18229e3d57ffb8960ca2b19b51893c946be0a
jersey: JAXRS_2_2
WARNING!
JAX-RS 2.2: Java SE Bootstrap API
(live coding)
LGTY?
Platform
(1 CPU Core)
Jersey + Netty
JAX-RS 2.2
Microprofile
JAX-RS 2.1
Java EE
Server
JAX-RS 2.1
Boot Time ~ 2.5s (~ 10s) (~ 60s)
JAR Size 6 MB 70 MB 142 MB
Java -Xmx 6 MB (?) (?)
Java -Xms 1 MB (?) (?)
Docker -m < 32 MB (?) (?)
Jakarta RESTful Web Services: Status Quo and Roadmap | JakartaOne Livestream

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Jakarta RESTful Web Services: Status Quo and Roadmap | JakartaOne Livestream

  • 1.
  • 3. Application Servers: Old-School Scaling AS-spec. Cluster Controller AS-spec. Node 1 AS-spec. Node 2 AS-spec. Node … AS-spec. Node n JAX-RS ApplicationJAX-RS Application JAX-RS Container Java EE Application Server Java Runtime Operating System Bare Metal Clustered Application Server Nodes e. g. GlassFish including Jersey AS-specific Cluster
  • 4. Cloud Computing: The Modern Approach Kub.’tes Cluster Controller Kub.’tes Node 1 Kub.’tes Node 2 Kub.’tes Node … Kub.’tes Node n JAX-RS ApplicationJAX-RS Application JAX-RS Container Java Runtime Docker Kubernetes Operating System Bare Metal Elastic creation and disposal of lightweight processes (e. g. Kubernetes with Docker) Kubernetes Cluster JAX-RS ApplicationJAX-RS Application JAX-RS Container Java Runtime Docker Container Docker Container Docker Container Docker Container Docker Container Docker Container Docker Container
  • 5. Cloud Computing JAX-RS + Netty + Docker + … = Cloud Native Java
  • 6. RESTful Devices 5 x 2,5 cm 1 Core @ 1 GHz 256 MB RAM 100 Mb/s LAN $ 10 Try to start GlassFish...
  • 7. Effects upon JAX-RS JAX-RS ApplicationJAX-RS Application JAX-RS Container Java Runtime Container Runtime Container Orchestration Operating System Bare Metal JAX-RS ApplicationJAX-RS Application JAX-RS Container Java Runtime should start and stop instantly should consume less resources must provide http server must read external config must accept application-provided resources
  • 8. R.I.P WORA Java SE 11: JAXB → <dependency> JAX-RS 2.2: javax.ws.rs → jakarta.ws.rs JAX-RS 3.0: @Context → @Inject WARNING!
  • 9. Roadmap JAX-RS 2.2: Java SE Bootstrap API instant on/off low resource includes http server reads external config (optional) support for Microprofile Config API https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap DELAYED
  • 10. Roadmap JAX-RS 2.3: Support for CDI 2.0 SE Deprecate @Context Support for ContextResolver<Jsonb> (accept application-provided resources) https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
  • 11. Roadmap JAX-RS 2.4: JPMS, Java 9+ https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
  • 12. Roadmap JAX-RS 3.0: Replace @Context by @Inject WARNING: You MUST use CDI now! https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
  • 13. Roadmap JAX-RS 3.1: Flow API, NIO … https://github.com/eclipse-ee4j/jaxrs-api/wiki/Roadmap
  • 14. JAX-RS 2.2: Java SE Bootstrap API instant on/off – boot in one second low resource – run on limited devices includes http server – choose by actual need reads external config – from app, controller or orchestrator optional support for Microprofile Config API – cloud standards
  • 15. Bleeding Edge Cookbook Java SE 8, Maven 3.6.1 maven-shade-plugin: master jax-rs 2.2: d5f18229e3d57ffb8960ca2b19b51893c946be0a jersey: JAXRS_2_2 WARNING!
  • 16. JAX-RS 2.2: Java SE Bootstrap API (live coding)
  • 17. LGTY? Platform (1 CPU Core) Jersey + Netty JAX-RS 2.2 Microprofile JAX-RS 2.1 Java EE Server JAX-RS 2.1 Boot Time ~ 2.5s (~ 10s) (~ 60s) JAR Size 6 MB 70 MB 142 MB Java -Xmx 6 MB (?) (?) Java -Xms 1 MB (?) (?) Docker -m < 32 MB (?) (?)