3.Slardar

The big fish, a sailor, will starlight your way.

SpringMvc (not WebFlux) wrappers and extensions, such as multi-language, multi-timezone, security, caching, sessions, etc.

3.1.Module Project

• slardar - basic features eg. caching, event, serializing
• slardar-hazel-caching - distributed cache on hazelcast
• slardar-hazel-session - distributed session on hazelcast
• slardar-webmvc - webmvc, session, security-web
• slardar-sprint - hazelcast, security-conf, admin, actuator
• slardar-test - testing utility including login

3.2.Solution and Configuration

Slardar is configured by default according to the following architecture and performance,

• Nginx(reverse proxy), mainly post+json service
• Undertow as the default Servlet container
• Hazelcast as Cache and Session
• 80% service can 30ms end, blocking factor 0.9
• 8-core 3GHz cloud hosting, simulating 10k*50 requests, single application
• 95th, response=2s, tps=2k-5k

3.3.SpringMvc Enhancement

Base on springMvc, Slardar provides potential capabilities and out-of-the-box features,

• concurrency control, multi-level caching, event publish/subscribe
• spring-boot-admin and actuator management and monitoring capability
• sentry log collection capability
• Terminal and Security's Context
• login, permission, session, token and other control capabilities

3.4.Preconfigured ThreadPool

SlardarAsyncConfiguration provides 6 pre-config Ttl threadpools, prefix and purpose are,

• exec- - spring.task.execution. properties
  • for @Async method
  • app-exec- for Callable RequestMapping
  • lit-exec- AsyncHelper manually async
• task- - spring.task.scheduling. properties for @Scheduled
• event- - wings.slardar.async.event. properties for Spring's Event
• fast- - wings.slardar.async.fast. properties for Wings fast task

reference,

• https://docs.spring.io/spring-framework/reference/web/webmvc/mvc-ann-async.html
• https://docs.spring.io/spring-framework/reference/integration/scheduling.html
• https://docs.spring.io/spring-boot/reference/features/task-execution-and-scheduling.html

3.5.More Sections

• Jackson Convention - Json conversion and i18n message
• Hazelcast Middleware - distributed session, caching, messaging
• Host Extend and URL Override - Override URL, Multiple Hosts and skinning
• Multiple Time and Lang - DateTime, Validation, Locale
• Session and Authn - Multiple logins, credentials, hierarchical permissions
• Multiple Caching and Event - Multi-level cache, lock, message
• Backend Protection - backend debounce, CAPTCHA, anti-tamper
• Backend Faq Topic - backend topic