| Virgo Snaps question [message #993284] |
Mon, 24 December 2012 00:36  |
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I'm new to OSGI and Snaps. I tried to implement modular web application some time ago, but I wanted a core module (platform) and application modules. Our application uses ExtJS, Hibernate, Spring, Spring Security etc...
When I saw Snaps I thought that this is what I need. I successfully implemented a test case but finished with a host module which has web.xml and an application module which has web.xml.
My question is - can I use host module as module, where I have Spring modules, security, JAWR etc and my snaps just have module specific classes and css and javascript files? I don't want to configure each module almost as an independent application. Can I see anywhere an example how to do that?
If snap is not the solution then how can I achieve that?
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| Re: Virgo Snaps question [message #997192 is a reply to message #993284] |
Fri, 04 January 2013 11:31  |
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Hi,
A Snaps application has a single Servlet Context, the web.xml files are effectively merged in to a single application. Each Bundle/Snap will still have its own Bundle context though and Snaps manages the integration of all that.
I would expect your use case to be supported but I don't have any experience of what Spring is doing under the covers. I suspect this is where the problems are coming from. I would expect the host and every snap to have a web.xml but there shouldn't be any duplication between them.
If you are willing to submit your test case with a bug then we could have a look at what is going on.
Thanks, Chris.
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Chris Frost, Twitter @cgfrost
Springsource, a divison of VMware.
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| Re: Virgo Snaps question [message #997282 is a reply to message #997192] |
Fri, 04 January 2013 21:55 |
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Here I created complete eclipse workspace, with a test sample. I get this weird error:
java.lang.NullPointerException
org.eclipse.virgo.snaps.core.internal.webapp.SnapServletContext.getResource(SnapServletContext.java:198)
org.eclipse.virgo.snaps.core.internal.webapp.StaticResourceServlet.doGet(StaticResourceServlet.java:58)
javax.servlet.http.HttpServlet.service(HttpServlet.java:735)
javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
org.eclipse.virgo.snaps.core.internal.webapp.container.ImmutableFilterChain.doFilter(ImmutableFilterChain.java:47)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher$1.doWithClassLoader(StandardVirtualContainerRequestDispatcher.java:104)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher$1.doWithClassLoader(StandardVirtualContainerRequestDispatcher.java:1)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher.doWithThreadContextClassLoader(StandardVirtualContainerRequestDispatcher.java:121)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher.service(StandardVirtualContainerRequestDispatcher.java:101)
org.eclipse.virgo.snaps.core.internal.webapp.WebAppSnap.handleRequest(WebAppSnap.java:152)
org.eclipse.virgo.snaps.core.RequestRouter.service(RequestRouter.java:51)
org.eclipse.virgo.snaps.core.SnapHostFilter.doFilter(SnapHostFilter.java:62)
The project is organized as greenpages example, with a difference that I'm trying to use snaps to modularize my application horizontally not vertically as greenpages is.
I think that module should have all css, js, java contained.
In attached example core is a host and crm is a snap.
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| Re: Virgo Snaps question [message #997284 is a reply to message #997192] |
Fri, 04 January 2013 22:08 |
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I'm using Spring MVC project templates form my web application. One of those should be host and other snaps. I'm considering host as a platform and other - snaps are modules.
When doing this I get this weird error:
java.lang.NullPointerException
org.eclipse.virgo.snaps.core.internal.webapp.SnapServletContext.getResource(SnapServletContext.java:198)
org.eclipse.virgo.snaps.core.internal.webapp.StaticResourceServlet.doGet(StaticResourceServlet.java:58)
javax.servlet.http.HttpServlet.service(HttpServlet.java:735)
javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
org.eclipse.virgo.snaps.core.internal.webapp.container.ImmutableFilterChain.doFilter(ImmutableFilterChain.java:47)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher$1.doWithClassLoader(StandardVirtualContainerRequestDispatcher.java:104)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher$1.doWithClassLoader(StandardVirtualContainerRequestDispatcher.java:1)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher.doWithThreadContextClassLoader(StandardVirtualContainerRequestDispatcher.java:121)
org.eclipse.virgo.snaps.core.internal.webapp.container.StandardVirtualContainerRequestDispatcher.service(StandardVirtualContainerRequestDispatcher.java:101)
org.eclipse.virgo.snaps.core.internal.webapp.WebAppSnap.handleRequest(WebAppSnap.java:152)
org.eclipse.virgo.snaps.core.RequestRouter.service(RequestRouter.java:51)
org.eclipse.virgo.snaps.core.SnapHostFilter.doFilter(SnapHostFilter.java:62)
My whole test project workspace is accessible on http://www.alcyone.si/fileadmin/download/osgi.7z as I can not post it as an attachment. It's 11 Mb big.
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| Re: Virgo Snaps question [message #998293 is a reply to message #997284] |
Wed, 09 January 2013 18:39 |
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Hi,
I see this is the same problem as in the other thread. I'm having trouble unzipping your sample application, what have you used to zip it up?
Chris.
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Chris Frost, Twitter @cgfrost
Springsource, a divison of VMware.
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