Optimizing Enterprise Java for a Microservices Architecture Otávio

Transcription

1 Optimizing Enterprise Java for a Microservices Architecture Otávio otaviojava@apache.org

2 Enterprise Java Standards History J2EE Release Cadence J2EE 1.3 J2EE Java EE Java EE Java EE Java EE 8

3 JCP Members JCP EC JSR Standards

4 Fundamental Shifts in Computing Cloud Reduce time to market Address unpredictable loads Pay as you go Containerization Microservices Deliver new features more quickly Smaller, more agile teams Deliver business features as discrete services Scale services independently

5 MicroProfile Background Began as a collection of independent discussions Many innovative microservices efforts in existing Java EE projects WildFly Swarm WebSphere Liberty Payara TomEE Projects already leveraging both Java EE and non-java EE technologies Creating new features/capabilities to address microservices architectures Quickly realized there is common ground Java EE technologies are already being used for microservices, but we can do better

6 Profile

7 MicroProfile Release Philosophy Release 1.0 JAX-RS CDI JSON-P Sept 2016 Rapidly iterate and innovate Build consensus Standardize

8 Bridging Community and Standards Broad Collaboration Encouraged experimentation Fail Fast Rapid innovation Vendor Choice Implementation Choice Application Portability Backwards Compatibility Reduced Risk

9 An Eclipse Foundation Project Meritocracy; vendor neutrality MicroProfile leadership can change over time Legal and technical infrastructure Trademark Ownership Accepts Apache License

10 MicroProfile 1.1 Underway Configuration 1.0 Security: JWT Token Exchange 1.0 Second Quarter 2017! Health Check 1.0 Fault Tolerance 1.0 (Stretch goal)

11 Configuration public class InjectedConfigUsageSample private private private defaultvalue="100") private javax.inject.provider<long> timeout;

12 Security: JWT Token Exchange public class JWTAuthFilter implements public void filter(containerrequestcontext requestcontext) throws IOException { String authheaderval = requestcontext.getheaderstring("authorization"); if(authheaderval.startswith("bearer")){ try { validate(authheaderval.split(" ")[1]); catch (InvalidJwtException ex) { requestcontext.abortwith(response.status(response.status.unauthorized).build()); else{ requestcontext.abortwith(response.status(response.status.unauthorized).build());

13 Health Check public class HealthCheckResource public class @Health public HealthStatus checkdiskspace() @Health public HealthStatus checksomethingelse() public HealthStatus checkdiskspace() public HealthStatus checksomethingelse() { [...]

14 Fault Tolerance 1.0 (Stretch public class FaultToleranceBean = 2) public Runnable dowork() { Runnable mainservice = () -> servicea(); return mainservice; CircuitBreaker cb = FaultToleranceFactory.getInstance(CircuitBreaker.class).withFailureThreshold(3, 10).withSuccessThreshold(5).withDelay(1, TimeUnit.MINUTES); Connection connect = execution.with(cb).run(this::connect);

15 Feature Backlog* - Help us prioritize [1 of 2] Container API Microservic-y annotations Testing Distributed Logging Distributed Tracing OAuth2/OpenID Connect Microservice Security Service Discovery Health Check * Some Items may be removed due to lack of interest Configuration Metrics/Monitoring WebSockets JSON-B Bean Validation JPA JTA Concurrency Utilities for Java EE

16 Feature Backlog* - Help us prioritize [2 of 2] Messaging / Eventing Asynchronous/Reactive Support / Patterns Integration with Reactive / Eventing systems Big Data/NoSQL strong & weak consistency support NetFlix OSS Integration JCache * Some Items may be removed due to lack of interest JDK 8 Lambda+Streams EJB Lite Servlets HTTP/2 Startup Time Disk Space Memory Uber-jar Java 9 Modularity

17 Release Schedule MicroProfile 1.0 Sep 2016 Move to Foundation MicroProfile 1.1 MicroProfile 1.2 Q

18 TomEE

19 DEMO

20 Join the Community!

21 Join the Discussion!

22 Resources MicroProfile.io MicroProfile Discussion Forum bit.ly/microprofileforum MicroProfile Examples

23 Otávio