Re: [seam-dev] Seam 3
by Peter Royle
Hi Dave,
Just from the brief look I've had at this is looks very impressive. I would love to help out with Seam 3 compatibility. I have a task to document the Seam Cron SPIs, and the process for providing a new implementation. Once I have done that I will let you know (you might like to watch this task as well: https://issues.jboss.org/browse/SEAMCRON-21). If you want to get started right away the existing Quartz Scheduling implementation should be a good place to start: https://github.com/seam/cron/tree/master/providers/scheduling/quartz . Due to the very limited functionality of Cron right now, implementing a new provider is fairly straightforward. I recommend checking out and building the whole project as described here (http://docs.jboss.org/seam/3/cron/3.0.0.Alpha1/reference/en-US/html_singl...), then digging into the code. Hit me up on the mailing list or #seam-dev on freenode IRC for any questions.
Obviously Seam Cron lacks most of the functionality provided by QueuJ. In those cases I would love to bring that functionality into the Seam Cron API, with QueuJ being the first provider to implement those features. Since you know the QueueJ feature set better than I do, it would be great if you could raise JIRA issues for each bit of functionality offered by QueuJ but not covered by the Seam cron API/SPI.
I hope you don't mind I've CC'd the seam-dev mailing list to let them know there's something awesome going on. If you haven't already joined that list it would be great if you did.
Thanks,
Pete Royle
On 21/06/2011, at 3:22 PM, Dave Oxley wrote:
> Hi Peter,
>
> Over the last 6 or so years I've developed a Java job queue library as part of a proprietary framework for the company I work for. I was recently given permission to split the code from the framework and open source it. I've added a compatibility layer for Seam 2 as I know Seam 2 fairly well. I haven't had a chance to learn Seam 3 yet but would like to add Seam 3 compatibility to the library as well.
>
> Anyway I thought I'd email you as I see that you're the lead for Seam Cron which has a partial crossover in goals with my library and therefore I thought you may be interested in it and/or would like to help out or even just point me in the right direction.
>
> The library is called QueuJ and is hosted on sourceforge here:
> http://queuj.sourceforge.net/
> And this is the package with the Seam 2 compatibility code:
> http://sourceforge.net/apps/trac/queuj/browser/queuJ/trunk/src/com/workpl...
>
> Cheers,
> Dave Oxley.
12 years, 10 months
Summary of a tentative to run seam-booking (from Seam 3 CR3) on WebSphere v8 beta
by Denis Forveille
Here is a summary of the problems I had while trying to run seam-booking (from seam CR3) in websphere v8 beta (march refresh)
I was not able to start the applications
I will make another tentative when the next release os Seam 3 will be out
Some of the JIRA are already resolved.
Denis
PS: For those who would like to try to do the same thing, edit file <app_install_dir>/properties/amm.filter.properties in WAS and
remove references to packag org.jboss.seam in this file before deploying the app.
---------------------------------
Class org.jboss.seam.transaction.TransactionManagerSynchronizations contains an annotation @Remove but this class in not a SFSB..
---> SEAMPERSIST-44
Exception javax.enterprise.inject.UnproxyableResolutionException: WebBeans with api type with normal scope must be proxiable to inject.
javax.el.ExpressionFactory has final methods! CDI doesn't allow that.
---> SOLDER-99
File WEB-INF/seam-beans.xml has problems:
java.lang.Exception: Could not resolve node specializes in namespace urn:java:seam:core at
file:/data/ws/ws_seam3/Test2Web/WebContent/WEB-INF/seam-beans.xml:28
at org.jboss.seam.config.xml.bootstrap.XmlConfigExtension.beforeBeanDiscovery(XmlConfigExtension.java:135)
---> SEAMXML-40
Seam-transaction (TransactionExtension) depends on slf4j instead of jboss-logging as the other modules
---> SEAMPERSIST-42
Version mismatch between sl4j jars:
- slf4j-api.jar is at version 1.6.1
- slf4j-log4j12.jar is at version 1.5.10
---> SEAM-55
Extension that have their constructor in scope "package" instead of "public" that makes the initialization to fail in WAS :
- org.jboss.seam.servlet.ServletExtension
- org.jboss.seam.servlet.logging.TypedMessageBundleAndLoggerExtension
- org.jboss.seam.solder.logging.TypedMessageLoggerExtension
- org.jboss.seam.solder.messages.TypedMessageBundleExtension
- org.jboss.seam.solder.serviceHandler.ServiceHandlerExtension
---> SOLDER-90 created by Dan
---> SEAMSERVLET-31 created by Dan
File META-INF/beans.xml in seam-conversation-spi.jar does not conform to beans.xml file schema
---> no JIRA created
Missing jars:
- ocpsoft-pretty-time.jar
- prettyfaces-jsf2.jar
- commons-beanutils.jar
- commons-digester
---> SEAM-56
12 years, 10 months
writing test cases
by Jack Cheng
Hi,
I'd like to help out by writing more unit tests for the modules to increase
code coverage.
are there any particular guidelines I need to follow or any materials I need
to read up on before diving into this task?
Jack
12 years, 10 months
Cron Configurabilities
by Pete Royle
Hi,
There are some things that I would like to make configurable for a Cron
provider (eg: threadpool size for the Quartz scheduling provider). So
for example, say there was a @ThreadPool(size=10) annotation, should I:
(a) Add that the API and ignore it for providers who don't use it
(b) Only add it to the provider which uses it, and the provider chooses
the package/class name
(c) Same as (b) but provider must use standardised package/class name
I like (c) the most followed by (b), but I think there's a chance for
conflict. Quartz is a provider for both scheduling and asynchronous.
Assuming both have configurable thread pools, there would be 2
@ThreadPool annotations on the classpath. If their package names differ
(b), developer confusion will likely ensue. If the package names are the
same (c), classloading confusion will ensue.
I will also support having these options in the cron.properties file,
but the same questions of naming and convention will apply there too.
Opinions appreciated.
Cheers,
Pete.
12 years, 10 months
Extended validation constraints
by Shane Bryzak
Hi Gunnar,
I had an idea today for a new validation constraint called @WebSafe - in
summary what it would do is validate a rich text value provided by the
user to ensure that it contains no malicious code, such as embedded
<script> elements. The implementation for this would use JTidy to
convert the value to a DOM tree, after which it would walk the nodes of
the tree and locate any <script> tags, and if any are present the
validation would fail.
Anyway, the implementation isn't so important - what I was wondering
though is whether you think something like this would be useful to have
in the Seam Validation module. I tend to think that it would be (and we
can probably come up with quite a few other useful validation
constraints also) but I would like to know what you think about this.
Shane
12 years, 10 months
Proposal for new Seam Module
by George Gastaldi
Hello,
I´ve been working on some projects along with CDI, and I had the pain
to work in native code (JNI) to access low-level functions.
Anyway, I have found http://jna.java.net/ to be very useful, and maybe
turn that into a new Seam Module (Seam Native, maybe ?), so that
people may access JNI easily and use CDI for their tasks.
What do you guys think ?
Regards,
George Gastaldi
12 years, 10 months
