Virgo is an open source,

OSGi OSGi is an open specification and open source project under the Eclipse Foundation. It is a continuation of the work done by the OSGi Alliance (formerly known as the Open Services Gateway initiative), which was an open standards organization fo ...

-based,

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application server. Virgo supports the deployment of OSGi bundles and unmodified Java

web applications A web application (or web app) is application software that is accessed using a web browser. Web applications are delivered on the World Wide Web to users with an active network connection. History In earlier computing models like client-serve ...

as well as OSGi-influenced Shared Libraries WARs and Shared Services WARs. Virgo is based on the

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OSGi implementation, part of the Eclipse project. A few different distributions of Virgo exist: Virgo Nano, Virgo Kernel, Virgo Server for Apache Tomcat (embedding the

Apache Tomcat Apache Tomcat (called "Tomcat" for short) is a free and open-source implementation of the Jakarta Servlet, Jakarta Expression Language, and WebSocket technologies. It provides a "pure Java" HTTP web server environment in which Java code can also ...

servlet container) and Virgo Jetty Server (embedding the Eclipse Jetty servlet container). Virgo Server for Apache Tomcat is the primary distribution for OSGi development. Virgo uses

Spring Framework The Spring Framework is an application framework and inversion of control container for the Java platform. The framework's core features can be used by any Java application, but there are extensions for building web applications on top of the ...

which is embedded and made available as a run-time dependency to deployed applications. Virgo is licensed using the

Eclipse Public License The Eclipse Public License (EPL) is a free and open source software license most notably used for the Eclipse IDE and other projects by the Eclipse Foundation. It replaces the Common Public License (CPL) and removes certain terms relating to ...

. Virgo was originally developed as SpringSource dm Server by SpringSource and is currently maintained by the

Eclipse Foundation The Eclipse Foundation AISBL is an independent, Europe-based not-for-profit corporation that acts as a steward of the Eclipse open source software development community, with legal jurisdiction in the European Union. It is an organization suppo ...

. SpringSource is now a division of

VMware VMware, Inc. is an American cloud computing and virtualization technology company with headquarters in Palo Alto, California. VMware was the first commercially successful company to virtualize the x86 architecture. VMware's desktop software ru ...

History

The SpringSource dm Server was originally announced as the SpringSource Application Platform on April 30, 2008. Version 1.0 of the SpringSource dm Server was released September 30, 2008. Version 2.0 was released January 12, 2010. SpringSource donated dm Server to Eclipse as th
Virgo project
later in 2010. In 2013 SpringSource contributions to Eclipse Virgo came to an end and the team members got reallocated to different projects. In absence of a lead, the Virgo project was about to be archived unti
Florian Waibel
stepped in as the new project lead.

IDE Tools

Eclipse Virgo is supported by a set of Eclipse plug-ins called Virgo Tools which allow using the Eclipse IDE for the development and testing of OSGi applications against an embedded Virgo test environment. The tools support hot deploy of individual bundles and allow deployment of plan files.

Feature summary

* Web admin console - deploy and manage artifacts, examine diagnostic dumps, and explore bundle wiring, either in a live system or offline following a resolution failure * Gogo shell - manage Virgo and deployed artifacts using a command line shell accessed via ssh or telnet * Plans - define the artifacts that compose an application, optionally making the application atomic to tie the artifact lifecycles together, and scoped to isolate the application from other applications * Provisioning - automatically supply the dependencies of an application including bundles, plans, plan archives (PARs), and configurations, from both local and remote repositories * Web container - supports

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WAR files, with all their dependencies in WEB-INF/lib, and Web Application Bundles, that import their dependencies via OSGi manifest metadata, via the reference implementation of the OSGi Web Container specification, based on embedded Apache Tomcat and configured using the standard Tomcat server.xml * User region - isolates the kernel from user-installed applications and enables administrators to focus on application artifacts and their dependencies without seeing those of the kernel as well * Spring – Virgo 3.6.2 packages Spring 3.1.x, Virgo 3.7 packages Spring 4.2.x * Hot deployment - deploy artifacts to Virgo by copying them into the pickup directory, either in archive or exploded form, as an alternative to deploying via the admin console or shell * Logging - via embedded LogBack with a rich set of appenders available out of the box * JMX management, accessed via the admin console, the shell, the Virgo IDE tooling, or directly via a JMX client such as JConsole

References

External links

* {{DEFAULTSORT:Virgo Eclipse software Java enterprise platform Free software application servers