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MuleSource SOA platform now provides for custom extension creation


By David Worthington
October 23, 2008 — 
The developer of an open-source platform for service-oriented architecture has updated its governance software to be easier to deploy and use. It has also delivered a new release of its enterprise service bus (ESB) that it says will offer more reliable connectivity.

On Tuesday, MuleSource Galaxy 1.5 was made generally available as both an open-source community edition and a paid enterprise edition, alongside version 2.1 of the Mule Enterprise ESB, the commercial variant of Mule’s ESB.

All versions of Galaxy now provide a scripting shell that has full access to the Galaxy APIs, which permit users to write custom extensions. “It allows users to make up for missing features, so we don’t have to rush and build new features,” said Mule co-founder and CTO Ross Mason.

An event API monitors changes to services and artifacts in the Galaxy repository, and if it detects any, it triggers events and notifications directed by policy. Changes may also be monitored via ATOM feeds, and Galaxy’s ATOM API has been updated as well.

Artifacts are now registered to provide a more complete picture of the service environment within the registry, he said. That is made possible through a typed system for properties; properties such as life cycles, lists, strings and users are stored. The registry also stores service metadata to describe the type of service.

Additionally, the Galaxy query language now supports more sophisticated queries. Previous versions of Galaxy may be automatically migrated by running the new version.

In the future, MuleSource may partner with runtime SOA governance providers such as AmberPoint so that it may offer capabilities such as monitoring service-level agreements, said Mason. “We are best in the development life cycle,” he noted.

The enterprise edition of Galaxy offers basic service federation capabilities for remote workstations, allowing users to browse other local Galaxy instances. It is also possible to configure remote instances of the Mule ESB from Galaxy, and a replication engine can migrate content from one Galaxy instance to another, Mason said. “Galaxy becomes the source of truth for what is deployed,” he added. Pricing starts at US$7,000 per CPU per year.

Mule 2.1 Enterprise is a follow-up to the community edition of the Mule 2.0 ESB that was released in April. Mule Enterprise features additional connectors for JDBC and IBM WebSphere, in addition to Representational State Transfer support, where services are defined in terms of resources. On top of that, the ESB now includes retry policies for failed connections.

Changes from version 1.6, the previous release of Mule Enterprise, are so acute that MuleSource is offering a migration tool, Mason explained. The 2.0 wave of the Mule ESB platform provides more tooling support for the Eclipse IDE, as well as changes to how the ESB is configured by leveraging schema-based Spring XML files, to ease integration with other Web applications.


Related Search Term(s): ESBs, open source, SOA & SaaS, Mule


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