[jboss-dev-forums] [JBoss AS7 Development] - Multiple phase deployments

[Thomas Diesler]

Thomas Diesler [http://community.jboss.org/people/thomas.diesler%40jboss.com] created the discussion

"Multiple phase deployments"

To view the discussion, visit: http://community.jboss.org/message/566331#566331

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Related to  https://jira.jboss.org/browse/JBAS-8517 JBAS-8517

In OSGi a set of bundles is (hot-) deployed in two phases.

#1 Bundles are installed into the Framework
#2 Bundes are started

After #1 a bundle is in state INSTALLED, the Framework is free to transition the bundle to state RESOLVED at any time. This can explicitly be triggered via PackageAdmin or implicitly by a class loading operation on Bundle.loadClass(String). Bundle.start() transitions the bundle from INSTALLED to RESOLVED to ACTIVE.

Given a set of bundles, it is important that all of them are INSTALLED (without getting started). The expected hot-deploy semantics is however that after the set of bundles got installed an attempt is made to start them.

In AS6 I worked arround that by wrapping the AS Deployers (see  https://jira.jboss.org/browse/JBDEPLOY-214 JBDEPLOY-214)

In AS7 I would need a notion of post deployment processing hook, that allows me to query the set of successful deployments (i.e. DeploymentServices) so that I can do processing step #2

Currently I work around that by collecting the deployments in a ThreadLocal
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