The DU runtime name is computed
here
LOGGER.debugf("Install deployment: %s", dep);
String runtimeName = getRuntimeName(dep);
putDeployment(runtimeName, dep);
try {
InputStream input = dep.getRoot().openStream();
try {
ServerDeploymentHelper server = new ServerDeploymentHelper(deploymentManager);
server.deploy(runtimeName, input);
} finally {
VFSUtils.safeClose(input);
}
} catch (RuntimeException rte) {
throw rte;
} catch (Exception ex) {
throw MESSAGES.cannotDeployBundle(ex, dep);
}
That mapping from the Bundle.location to the DU.name is historical and I'm not sure what the limitations currently are. Perhaps you could find out while you're doing this and document why getRuntimeName(dep) is doing what its doing. That name also has to feed through the management layer as the deployment's runtimeName. Perhaps there are some limitations at that level. Have a look at the variations of DeploymentPlanBuilder.add(…)
Ideally, we would like to pass the Bundle.location directly to the DeploymentPlanBuilder API so that it becomes DU.name unchanged.
xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Thomas Diesler
JBoss OSGi Lead
JBoss, a division of Red Hat
xxxxxxxxxxxxxxxxxxxxxxxxxxxx
> DeploymentUnit.getName() only returns the bare name of the item being deployed
> I could not find the Deployment.location
xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Thomas Diesler
JBoss OSGi Lead
JBoss, a division of Red Hat
xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi Thomas,
If I can get the original location/URI back in the DeploymentUnitProcessor.deploy() so I can associate them with each other that would work for me too. DeploymentUnit.getName() only returns the bare name of the item being deployed (e.g. just "mywebapp"), which isn't really precise enough. I could not find the Deployment.location that you're referring to from the deploy() method, is it available as an attachment of some sort?
Cheers,
David
On 29/11/2012 19:22, Thomas Diesler wrote:
Hi David,
The webbundle://foo?key=value URL is mainly a transport vehicle for meta data. I don't think it is intended to give access to the bytes of the war (however, we could do this too - see below). That URL spec (as a string) is the Bundle.location that is given in BundleContext(location, input). That location identifier was originally meant to be a URL that could give access to the Bundle's bytes. This is no longer the case and any string (in most cases an URI) can be given as the location. Internally, I think the location becomes the DU name. If not, it is definitely the Deployment.location.
So a DUP does have access to that web bundle location. The URL handler is mainly a URI parser that is supposed to give access to the OSGi metadata that need to be put in the manifest (in our case the OSGiMetaData not the Manifest). AFAIK, the Framework tries to construct a URL from the location only if no input bytes are given. When we talk about an URLHandler we are mainly talking about a simple URI parser. A URLHandler would need to be implemented for BundleContext(location) to work.
Given that the URI parsing works and that we can generate OSGiMetaData from it, the bytes that make up the WAR are maintained by the DeploymentRepository and available through the DU roots.
In the unlikely case that the TCK does something like this:
Manifest manifest = new Manifest(new URL("webbundle://foo?key=value").openStream());
validateGeneratedManifest(manifest)
we would need to feed back the generated OSGiMetaData to a byte buffer. In any case that would have to access the DU root content and amend it by a generated Manifest.
I'd have to check if the above is really required.
If this does not help either, give me a shout and I put together a quick prototype.
cheers
--thomas
On Nov 29, 2012, at 12:29 PM, David Bosschaert <david@redhat.com> wrote:
Hi Thomas,
I have the following issues with your suggestion.
1. I don't fully see how the information available to the URL handler can be associated with the information available to the DeploymentUnitProcessor. The URL handler has the URL, that's all, while AFAICS the original URL (or whatever was inside the webbundle: url) is no longer available when the deploy() method is called.
2. If we find a way to fix 1. this will only work if people use BundleContext.install(String location). It will fail when people call url.openStream() on the webbundle: url and does not work with BundleContext.install(String, InputStream).
Another approach would be to simply let the URL handler do all the work, i.e. modify the stream being passed through. Then those URLs will work in any context.
Cheers,
David
On 26/11/2012 17:25, Thomas Diesler wrote:
Hi David,
here a quick summary of what I suggested today:
The first thing that sees the URL coming from BundleContext.install(...) is the Framework, which has a notion of pluggable URL handlers.
In AS7 the URL handler should be an integration plugin and a DUP at the same time. The DUP would do nothing as long as the plugin
is not activated (i.e. the framework is down). When the Framework activates the URL handler gets registered with the framework and the DUP becomes active.
The DUP would then need to provide OSGiMetaData with a Bunde-SymbolicName and Bundle-Classpath. The Bundle-Classpath should point to WEB-INF/classes and
the collection of stuff in WEB-INF/lib. For completeness it could generate Package-Import requirements on the javax.servlet.* APIs. The DUP should be placed after
the DUP that normally provides OSGiMetaData and should do nothing if the OSGiMetaData is already there.
Hope that helps, cheers
--thomas
On 11/21/2012 05:58 PM, David Bosschaert wrote:
Hi all,
As part of making the JBoss OSGi Web Application Support compliant with
the spec I have started running it through the OSGi TCK.
I noticed that the TCK depends heavily on the webbundle: URL protocol
which is specified in section 128.4 of the specification - it is not an
optional piece. So in order to support this we need to provide such a
URL handler.
As the webbundle: handler is never part of runtime operation (it only
converts a WAR file into a WAB file on the fly) I was looking into
possibly using existing implementations of the URL handler instead.
However the ones that I found are quite heavy on the dependencies. The
implementation in Aries depends on Blueprint being present and the one
in Pax has about 10 other dependencies (including junit) - they drag in
too much baggage IMHO.
So I'm starting to come to the conclusion that we need to provide such
an implementation as part of the OSGi webbundle support in AS7. The JIRA
is https://issues.jboss.org/browse/AS7-6006
Any other ideas?
Cheers,
David
_______________________________________________
jboss-as7-dev mailing list
jboss-as7-dev@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/jboss-as7-dev
jboss-as7-dev mailing list
jboss-as7-dev@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/jboss-as7-dev