10:15 a.m.
arjan tijms [http://community.jboss.org/people/atijms] created the discussion
"Re: Data sources in EAR on AS7?"
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What about taking an approach like Tomcat does with respect to embedded context.xml files
in a WAR;
When the EAR is deployed, have a meta deployer first scan the archive and copy any
"service files" (-ds.xml, -hornetq-jms.xml, etc) encountered to the location
expected by AS 7. Then proceed with the deployment as it normally would be done.
If the meta deployer uses both META-INF and jboss-app.xml or a simular file to discover
the embedded service files, then everything that worked on AS 6 and before should continue
to work on AS 7.
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10:33 a.m.
Jesper Pedersen [http://community.jboss.org/people/jesper.pedersen] created the
discussion
"Re: Data sources in EAR on AS7?"
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All the concepts can be implemented by
http://lists.jboss.org/pipermail/jboss-as7-dev/2011-May/001836.html
http://lists.jboss.org/pipermail/jboss-as7-dev/2011-May/001836.html
Let us know if you want to work on it.
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10:58 a.m.
arjan tijms [http://community.jboss.org/people/atijms] created the discussion
"Re: Data sources in EAR on AS7?"
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It sounds like an option. Thanks for the reference.
The way I now understand it, it's a separate archive type (.cli?) that embeds the EAR
and contains deployment instructions, right?
If that's so, what about turning the concept of a "cli archive" a little
around and have an EAR that embeds those CLI commands? That way it would be a lot easier
to integrate this with existing deployment tools like e.g. Eclipse/WTP (including JBoss
tools).
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11:04 a.m.
Jesper Pedersen [http://community.jboss.org/people/jesper.pedersen] created the
discussion
"Re: Data sources in EAR on AS7?"
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No, an .ear is an .ear as defined by EE 6.
In the script you will setup the needed resources like datasources, JMS queues and topics,
EJB pool sizes and so on through the standard management interface. Everything that is
exposed by the management API you have access to.
Tooling is a minor problem, since it is a "standard" JAR archive format.
So
1. Check management API -- through the CLI if you want
2. Design the .cli container
3. Implement it
4. Submit patch
We hang out on #jboss-as7 on FreeNode if there are any questions.
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11:22 a.m.
arjan tijms [http://community.jboss.org/people/atijms] created the discussion
"Re: Data sources in EAR on AS7?"
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Jesper Pedersen wrote:
No, an .ear is an .ear as defined by EE 6.
In the script you will setup the needed resources like datasources, JMS queues and
topics, EJB pool sizes and so on through the standard management interface. Everything
that is exposed by the management API you have access to.
That could indeed be interesting yes, and would give archives a lot more options
than we have today.
Tooling is a minor problem, since it is a "standard" JAR
archive format.
This is the part I have some doubts about. In Eclipse you would e.g. check out a project
from a repository, go to your Servers view, add the project to a server and start it. The
WTP server adaptor will then assemble the ear and deploy it. Changes to individual files
will be hot deployed.
It's this workflow that I found to be important to a lot of developers and that
I'm trying to preserve.
If the EAR would contain the instructions, this would be trivial to support (not only in
Eclipse, but other IDEs as well). Specifically for Eclipse it might be an option to talk
with the JBoss tools guys to see how open they are about optionally assembling such a .cli
archive instead of a .ear.
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11:35 a.m.
Jesper Pedersen [http://community.jboss.org/people/jesper.pedersen] created the
discussion
"Re: Data sources in EAR on AS7?"
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You are missing the point of the archive.
The archive will contain your entire setup including dependencies on resources and other
artifacts - it is much more than a standard .ear:
myapp.cli:
- startup.scr
- shutdown.scr
- int1.rar
- int2.rar
- services.sar
- myapp.ear
- admin.war
The archive will install the needed resources (datasources, JMS queues, ...), then the two
.rar files which etablish connections to external EIS' (maybe the script even changes
the config of those too), then the .sar, then the .ear and finally the .war.
shutdown.scr makes sure that everything is done in the reverse order on undeploy.
And yes, I agree that JBoss Tools should support building / deploying such an archive.
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11:40 a.m.
Sebastian Koske [http://community.jboss.org/people/sebastian.koske] created the
discussion
"Re: Data sources in EAR on AS7?"
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Ok, I see your point. Then there should also be a suitable maven packaging.
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11:51 a.m.
Jesper Pedersen [http://community.jboss.org/people/jesper.pedersen] created the
discussion
"Re: Data sources in EAR on AS7?"
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Yes, this needs to support everything from a developer who wants to setup his/her
datasource, deploy the .ear, and run the test suite within 10 sec to a massive deployment
in a production environment.
Download AS 7, play with it, send us feedback; once the basic building blocks are there
the work can begin -- well, it could start already today ;)
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10:21 a.m.
henk de boer [http://community.jboss.org/people/henk53] created the discussion
"Re: Data sources in EAR on AS7?"
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Jesper Pedersen wrote:
No, an .ear is an .ear as defined by EE 6.
The new proposed archive certainly sounds like a compromise that could possibly work, at
least for deployment to production servers.
I do wonder why you think an .ear with an embedded data source is not an .ear as defined
by Java EE 6. Isn't the META-INF folder in an .ear allowed or actually intended to
contain files concerning meta issues (e.g. deployment)?
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8:11 a.m.
Jesper Pedersen [http://community.jboss.org/people/jesper.pedersen] created the
discussion
"Re: Data sources in EAR on AS7?"
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The new proposed archive certainly sounds like a compromise that
could possibly work, at least for deployment to production servers.
It isn't a compromise - all deployments should go through the management layer.
I do wonder why you think an .ear with an embedded data source is not
an .ear as defined by Java EE 6. Isn't the META-INF folder in an .ear allowed or
actually intended to contain files concerning meta issues (e.g. deployment)?
The -ds.xml and friends isn't part of the standard. If you want a datasource in your
deployment use the EE 6 @DataSourceDefinition - but it won't be backed by a JCA
container.
I think we have discussed this enough; there is a breakdown of the overall idea for the
correct solution. Once somebody has a design - maybe even a proof-of-concept
implementation - open a new thread.
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11:20 a.m.
Sebastian Koske [http://community.jboss.org/people/sebastian.koske] created the
discussion
"Re: Data sources in EAR on AS7?"
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This sound like something I would expect a .sar archive to contain.
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