JBDEPLOY-16; generic dependency deployer

[alesj]

WRT:
- https://jira.jboss.org/jira/browse/JBDEPLOY-16
and
- http://www.jboss.com/index.html?module=bb&op=viewtopic&t=146033

For the initial version of this generic deployer,
I would go with some simple dependency.txt file.

e.g. dependency.txt
TransactionManager
vfszip:/C:/projects/demos/sandbox/jboss-demos-ioc.jar

Since module name (DeploymntControllerContext name) is quite verbose
I would add another file that would hold deployment's alias: alias.txt
This would add an alias to DCC, making it human readable and not impl detailed - we might change vfszip to whatever ...

e.g. jboss-demos.jar would have META-INF/alias.txt (my-ioc-demos)
where jboss-demos-extension.jar would have dependency.txt with my-ioc-demos

Or is this too excessive on files?

[adrian.brock]

The idea of JBDEPLOY-16 was not to provide a specific mechanism
for adding dependencies to a deployment but to provide some helper
for other deployers that want to do it.

e.g. OSGi has service dependencies at the deployment level if you use
the declaritve service model

If you want to provide an example of such a thing that uses text files
that is ok.

[alesj]

If you want to provide an example of such a thing that uses text files
that is ok.

I'm done with initial version of this generic dependency:
- http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/trunk/deployers-vfs/src/main/java/org/jboss/deployers/vfs/plugins/dependency/
- http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/trunk/deployers-vfs/src/test/java/org/jboss/test/deployers/vfs/dependency/test/DependenciesTestCase.java

Aliasing:
- AliasesParserDeployer: looks for aliases.txt --> DeploymentAliases
- DeploymentAliasesDeployer: DeploymentAliases --> add/remove aliases for DeploymentUnit

Dependency:
- DependenciesParserDeployer: looks for jboss-dependency.xml --> DependenciesMetaData
- DependenciesMetaDataDeployer: DependenciesMetaData --> DeploymentDependencies
- DeploymentDependencyDeployer: DeploymentDependencies --> add/remove dependency items