Comments on: Running Spring Applications on OSGi with the SpringSource Application Platform http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/ The voice of SpringSource Wed, 08 Feb 2012 17:31:53 +0000 hourly 1 http://wordpress.org/?v=3.1.1 By: vishalj http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167104 vishalj Tue, 26 May 2009 14:07:23 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167104 Hi Rob, So Struts code (in repository) instantiates action classes(my appliction code) using TCCL ? Hi Rob,

So Struts code (in repository) instantiates action classes(my appliction code) using TCCL ?

]]> By: Sudheer Krishna http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167103 Sudheer Krishna Tue, 26 May 2009 12:33:36 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167103 Then how is teh Struts code (in repository) able to instantiate action classes(my application code) in pickup ? Isnt it through TCCL ? Then how is teh Struts code (in repository) able to instantiate action classes(my application code) in pickup ?

Isnt it through TCCL ?

]]> By: Rob Harrop http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167098 Rob Harrop Tue, 26 May 2009 12:10:41 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167098 That really depends on what thread you are on and what the entry point to your unit of work is. For single bundle web applications, the TCCL is the CL of the bundle itself. For other units of work that are dispatched by dm Server the same is true. For user-created threads, the TCCL is effectively unknown. Rob That really depends on what thread you are on and what the entry point to your unit of work is.

For single bundle web applications, the TCCL is the CL of the bundle itself. For other units of work that are dispatched by dm Server the same is true. For user-created threads, the TCCL is effectively unknown.

Rob

]]> By: vishalj http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167097 vishalj Tue, 26 May 2009 12:08:15 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167097 Thanks out of curiosity ,what is TCCL set to for each bundle and what all is visible to it Thanks

out of curiosity ,what is TCCL set to for each bundle and what all is visible to it

]]> By: Rob Harrop http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167096 Rob Harrop Tue, 26 May 2009 12:05:26 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167096 That output means that the TCCL is the CL for one of your bundles, not the dm Server generated CL. To take advantage of the TCCL support you need to package all your bundles inside a PAR file and then deploy them that way. You can find information on PAR files in the Programmer's Guide: http://static.springsource.com/projects/dm-server/1.0.x/programmer-guide/html/ch05s02.html#developing-applications-packaging-par Rob That output means that the TCCL is the CL for one of your bundles, not the dm Server generated CL. To take advantage of the TCCL support you need to package all your bundles inside a PAR file and then deploy them that way.

You can find information on PAR files in the Programmer's Guide: http://static.springsource.com/projects/dm-server/1.0.x/programmer-guide/html/ch05s02.html#developing-applications-packaging-par

Rob

]]> By: vishalj http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167095 vishalj Tue, 26 May 2009 12:01:42 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167095 This is my scenario I have three bundles in all Bundle datalayer with the export of package of abc.xyz Bundle JMS with a class MYListener(being exported) in the constructor of MYListener i am trying to get the instance of abc.xyz.MyClass Thread.currentThread().getContextClassLoader().loadClass( "abc.xyz.MyClass").newInstance(); Bundle PAX with a class MYClass where in init block i am getting new instance of MYListener using new MYListener(); When i printed the TCCL System.out.println(Thread.currentThread().getContextClassLoader()); it came out to be BundleDelegatingClassLoader for [PAX Bundle (PAX)] This is my scenario

I have three bundles in all
Bundle datalayer with the export of package of abc.xyz

Bundle JMS with a class MYListener(being exported)
in the constructor of MYListener i am trying to get the instance of abc.xyz.MyClass
Thread.currentThread().getContextClassLoader().loadClass(
"abc.xyz.MyClass").newInstance();

Bundle PAX with a class MYClass where in init block i am getting new instance of MYListener using new MYListener();

When i printed the TCCL
System.out.println(Thread.currentThread().getContextClassLoader());

it came out to be BundleDelegatingClassLoader for [PAX Bundle (PAX)]

]]> By: Rob Harrop http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167094 Rob Harrop Tue, 26 May 2009 11:48:07 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167094 Are all your bundles in the same PAR? Where in time are you accessing the TCCL? Can you write the the toString() of the TCCL out to console? This contains relevant information about which loader is being used. Are all your bundles in the same PAR?

Where in time are you accessing the TCCL?

Can you write the the toString() of the TCCL out to console? This contains relevant information about which loader is being used.

]]> By: Rob Harrop http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167092 Rob Harrop Tue, 26 May 2009 11:44:00 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167092 You mention that you have a bundle importing 'abc.xyz' but not where it is exported from. The CCL will import all exported packages for all bundles in a PAR file but not for all bundles across the framework. Rob You mention that you have a bundle importing 'abc.xyz' but not where it is exported from. The CCL will import all exported packages for all bundles in a PAR file but not for all bundles across the framework.

Rob

]]> By: vishalj http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-167090 vishalj Tue, 26 May 2009 10:50:32 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-167090 hi does this classloader have visibility to the other classes in the bundle hi does this classloader have visibility to the other classes in the bundle

]]> By: SpringSource Team Blog » SpringSource dm Server 1.0.0 reaches GA http://blog.springsource.org/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/comment-page-1/#comment-123316 SpringSource Team Blog » SpringSource dm Server 1.0.0 reaches GA Tue, 30 Sep 2008 20:54:47 +0000 http://blog.springsource.com/main/2008/05/02/running-spring-applications-on-osgi-with-the-springsource-application-platform/#comment-123316 [...] and the engineering team for getting this very substantial release out. The team had to solve some tricky issues to make deployment of standard WAR files on the dm Server seamless. In particular, I commend the [...] [...] and the engineering team for getting this very substantial release out. The team had to solve some tricky issues to make deployment of standard WAR files on the dm Server seamless. In particular, I commend the [...]

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