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© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Connect OSGi and SpringCarsten Ziegeler, Adobe OSGi Community Event 2019
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Carsten Ziegeler
Principal Scientist @ Adobe Member of the Apache Software Foundation PMC Member of Apache Felix and Sling OSGi Expert Groups and Board member
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© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Modularity
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Todays Software
Complex Software Systems Cloud Microservices (Desktop)
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Software-ICs
ModulesAPI
Requirements / Capabilities
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Modularity Is Key
Complex software systems Sustainable Software Extensibility Interchangeability Reuse / Consistency
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Modularity in Java
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Modularity with Java === OSGi
Modules Requirements
Capabilities
Semantic Versioning
Service Registry Extensions (Compendium) IoC Container (Declarative Services)
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Spring
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Spring
Core: Popular IoC container Dozens of extensions Tooling Spring Boot
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Core ConceptsSpring OSGi
Modules Jar based === classpath hell Bundles incl class loading
Static Dynamic
Services IoC Container Service Registry
Hierarchy Flat
„Static“ Dynamic
Name based Interface + property based
(Auto) Wiring
Separate IoC Container(s) with(auto) wiring
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Use Case
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Reuse / Consistency
Web Framework (OSGi) Apache Sling
Set of libraries (Spring) Authentication
Monitoring
Storage connectors
…
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
OSGi FrameworkSpring Boot
Architecture
Jetty
Libraries + Beans
Http Service
Apache Sling
Application CodeFeature Model
Bundles+Config
Config(jars)
OSGiConnect
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Connect
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Reboot OSGi Connect (RFP 196 / RFC 243)
Connect OSGi to the „outside“ Popular Application Frameworks JPMS JARs on the classpath Native compilation
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© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Demo
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Modularity is Key
Modularity in Java === OSGi Metadata Buildtime vs Runtime
New possibilities with OSGi Connect Pick and choose
Dynamic vs static
Watch https://github.com/osgi/design/tree/master/rfcs/rfc0243
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
Q & A
© 2019 Adobe. All Rights Reserved. Adobe Confidential.
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