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Microservices Expo: Article

Universal Middleware: What's Happening With OSGi and Why You Should Care

Containers - Is It Time for Another One?

The Open Services Gateway Initiative (OSGi) Alliance is working to realize the vision of a "universal middleware" that will address issues such as application packaging, versioning, deployment, publication, and discovery.

In this article we'll examine the need for the kind of container model provided by the OSGi, outline the capabilities it would provide, and discuss its relationship to complementary technologies such as SOA, SCA, and Spring. Enterprise software is often composed of large amounts of complex interdependent logic that makes it hard to adapt readily to changes in requirements from the business. You can enable this kind of agility by following a Service Oriented Architecture (SOA) pattern that refactors a system into application modules grouped by business functions that expose their public functionality as services (interfaces).

More Stories By Dave Chappell

David Chappell is vice president and chief technologist for SOA at Oracle Corporation, and is driving the vision for Oracle’s SOA on App Grid initiative.

More Stories By Khanderao Kand

Khanderao Kand is a Lead Architect for Oracle Fusion Middleware at Oracle Corp. He is involved in the development of Oracle’s SOA Suite covering various Integration and BPM technologies including BPEL and ESB. He also provides Architectural consultancy for Oracle’s next generation Fusion Applications to architect their solutions around SOA and BPM. He has been involved in the development of various industry standards like BPEL 2.0, SCA-Assembly, SCA-BPEL etc. In his two decades of Software Development experience, he played various roles like an Enterprise Architect of Peopletools, an architect in CRM and others. Being a code slinger, he plays around with various emerging tools and technologies. Occasionally he writes in technical magazines like Java Developers Journal, Web Services Journal, SOA World etc. He also speaks at various conferences like Oracle Open World, JAX Conference, and Software Development Best Practices.

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Most Recent Comments
Costin Leau 02/03/08 06:23:49 AM EST

It's worth mentioning that Spring Dynamic Modules for OSGi Service Platforms (or the Spring OSGi integration in short), had its 1.0 final release, after 3 milestones and 3 release candidates, on January 25th, 2008.

The official announcement can be found at:

Richard Nicholson 02/03/08 04:45:32 AM EST

Those interested in a commercial distributed runtime, built from the ground up using OSGi R4 and SCA, may be interested in the Infiniflow Service Fabric - see, or its open source relation

In addition to having leveraged these important industry developments for the last 18 months, Infiniflow, described by analysts as a Cloud OS or virtual application server, augments these with industry unique self-managing, self-scaling behaviors, and with transparent runtime support for Spring Dynamic Modules.

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