July 2007 - jboss-dev-forums - Jboss List Archives

[Design of JBoss ESB] - Scheduling of services

by beve

Hi, I've been working on creating a Web Service Listener that will poll a web service and then execute an action pipeline. We have no option but to poll very frequently to have a good enough response time, so the need to be able have a little more control over when a service is triggered emerged. After having refactored the polling to be able to use it for the WSListener, I had a chat with TomF about this matter and this a suggestion for scheduling of services. Below is an example of what a configuration of scheduling could look like (example is from the helloworld_file_action quickstart): | <fs-listener name="FileGateway" | busidref="helloFileChannel" | maxThreads="1" | is-gateway="true"> | <property name="cronExpression" value="0/30 * * * * ?" /> | <property name="startDate" value="07-07-08 19:17:00" /> | <property name="endDate" value="07-07-08 19:20:00" /> | |  | | </fs-listener> | The properties startDate and endDate are optional, aswell as the repeatCount if one want's to specify a pollLatencySeconds like you can do in the current code base. The scheduling uses Quartz and the cronExpression is a Quartz CronExpression. An AbstractScheduler that extends AbstractThreadedManagedLifecycle has been created which can be "inserted" into the inheritence chain, which is what has been done for AbstractFileGateway. I didn't want to have to refactor too much of the code and this felt like way to not have to. This is the first time I've used Quartz so if anyone has used it before it would be great if you could take a look:) This would not only let services like gateways and listener so be scheduled, it should be usable for other types of service that to not need to call an action pipeline, like BAM services for gathering statistics for example. This can be found in the workspace http://anonsvn.jboss.org/repos/labs/labs/jbossesb/workspace/dbevenius/wsl... if anyone feels like trying it out. Just do a normal build and then start the jbossesb-server, then run the helloworld_file_action quickstart. Any suggestions, additional requirements and comments are welcome. Thanks, Daniel View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061748#4061748 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061748

18 years, 9 months

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[Design of the JBoss EJB Container] - how to set up environment with eclipse for ease of reading t

by crystal70

I want to read the source code of jboss application server. how to set up environment with eclipse for ease of reading the source code of jboss application server ? Can anyone help me? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061657#4061657 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061657

18 years, 9 months

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[Design of JBoss Portal] - Re: JBPORTAL-1541

by julien＠jboss.com

Actually I reopened the issue as it seems more correct to proceed as such. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061643#4061643 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061643

18 years, 9 months

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[Design of JBoss ESB] - Re: Filters and meta-data modificatins

by mark.little＠jboss.com

>From the Programmers Guide on meta-data and filters ... anonymous wrote : | JBossESB ships with org.jboss.internal.soa.esb.message.filter.MetaDataFilter and org.jboss.internal.soa.message.filter.GatewayFilter which add the following meta-data to the Message as Properties with the indicated property names and the returned String values. | | org.jboss.soa.esb.message.transport.type --> File, FTP, JMS or SQL. | org.jboss.soa.esb.message.source --> The name of the file from which the message was read. | org.jboss.soa.esb.message.time.dob --> The time the message entered the ESB, e.g., the time it was sent, or the time it arrived at a gateway. | org.jboss.soa.esb.mesage.time.dod --> The time the message left the ESB, e.g., the time it was received. | org.jboss.soa.esb.gateway.original.file.name --> If the message was received via a file related gateway node, then this element will contain the name of the original file from which the message was sourced. | org.jboss.soa.esb.gatway.original.queue.name --> If the message was received via a JMS gateway node, then this element will contain the name of the queue from which it was received. | org.jboss.soa.esb.gateway.original.url --> If the message was received via a SQL gateway node, then this element will contain the original database URL. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061642#4061642 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061642

18 years, 9 months

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[Design the new POJO MicroContainer] - Re: MC 2.0 tasks

by alesj

OK, splitted in two groups - constructed from Adrain's previous posts: 1) Optional - Javassist (optimization) issues anonymous wrote : | JBMICROCONT-121 Javassist based reflection objects uses the compiler | JBMICROCONT-122 Use the ScopedClassPool from javassist | JBMICROCONT-129 Implement support for the generic metadata in the javassist implementation of ClassInfo | JBMICROCONT-133 Figure out how to generically do the equivalent of setAccessible() for the javassist constructed reflection objects | 2) TODO (after alias issues) - tests, fixes, ... anonymous wrote : | JBMICROCONT-127 ClassInfo tests testing annotation attribute values | JBMICROCONT-128 ClassInfo should be serialzable | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061585#4061585 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061585

18 years, 9 months

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[Design the new POJO MicroContainer] - Re: MC 2.0 tasks

by alesj

"adrian(a)jboss.org" wrote : | None. It is an optional performance improvement. OK, I'll leave them for the end. But ClassInfo tasks should probably be resolved for GA? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061582#4061582 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061582

18 years, 9 months

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[Design of POJO Server] - Re: Running with the full featured profile service

by adrian＠jboss.org

Update the profile service -beans.xml from the new version in server/src/etc/conf Your xml is referencing old classes. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061570#4061570 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061570

18 years, 9 months

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[Design the new POJO MicroContainer] - Re: MC 2.0 tasks

by adrian＠jboss.org

"alesj" wrote : | How much of the Javassist is due to 2.0.(CR1|GA)? | None. It is an optional performance improvement. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061569#4061569 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061569

18 years, 9 months

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[Design of AOP on JBoss (Aspects/JBoss)] - Re: AOP ClassLoader/Scoping for the VFSClassLoader

by adrian＠jboss.org

Linking related thread: http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4051453#4051453 I've started the work on JBAOP-107 mentioned on the other thread. The AOPScopedClassLoaderHelper is replaced with a higher level abstraction AOPClassLoaderScopingPolicy that is implemented using the older class with a bridge. The isScoped(ClassLoader) is still not very useful for the OSGi style classloading so this needs more work. https://svn.jboss.org/repos/jbossas/projects/aop/trunk/aop/src/main/org/j... NOTE: This is only a temporary solution to get a better abstraction for different classloader implementations/policies. The real solution is for AOP not to "guess" based on the classloader :-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061565#4061565 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061565

18 years, 9 months

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[Design of JBoss ESB] - Filters and meta-data modificatins

by mark.little＠jboss.com

I've modified the filters so that they can be fired on gateways as well. This will go into the trunk later today and will be available in MR3 in the nex week or so. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061556#4061556 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4061556

18 years, 9 months

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jboss-dev-forums July 2007