February 2008 - jboss-user - Jboss List Archives

[JBoss Seam] - Re: Legacy code: Integrating with existing servlet

by dustismo

I sincerely doubt that this is valid: | url-pattern="http://localhost:8080/trading/getchart/" | try this instead: | url-pattern="/trading/getchart/*" | also you probably want to create to create the Component if it doesnt already exist in the current convo. ala: | quoteDS = (ChartDatasource) Component.getInstance("wcQuoteDS",true); | hope that helps, Dustin View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127962#4127962 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127962

18 years, 2 months

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[JBoss Seam] - Limiting maximum instance of SFSB?

by tonylmai

Hello, One of my component in Seam is used frequently by all logged in users. It is implemented as stateful session bean. Q: How do I specify the min and max instances of this bean allowed in the pool as well as the passivated time? Thanks, -Tony View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127961#4127961 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127961

18 years, 2 months

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[Javassist user questions] - javassist.CannotCompileException: by java.lang.LinkageError:

by arsami

Hi, I am trying to change a class on-the-fly with this small program: | Hello h = new Hello(); | h.say(); | ClassPool cp = new ClassPool(true); | CtClass cc = cp.get("com.blabla.test.Hello"); | CtMethod m = cc.getDeclaredMethod("say"); | m.insertBefore("{ System.out.println(\"Hello.say():\"); }"); | Class c = cc.toClass(); | h = (Hello)c.newInstance(); | h.say(); and I get the following exception: | javassist.CannotCompileException: by java.lang.LinkageError: duplicate class definition: | at javassist.ClassPool.toClass(ClassPool.java:953) | at javassist.ClassPool.toClass(ClassPool.java:896) | at javassist.ClassPool.toClass(ClassPool.java:854) | at javassist.CtClass.toClass(CtClass.java:1053) | at com.blabla.test.PlainTester.testMethodInjection(PlainTester.java:32) | | Caused by: java.lang.LinkageError: duplicate class definition: com/blabla/test/Hello | at java.lang.ClassLoader.defineClass1(Native Method) | at java.lang.ClassLoader.defineClass(ClassLoader.java:620) | at java.lang.ClassLoader.defineClass(ClassLoader.java:465) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at javassist.ClassPool.toClass2(ClassPool.java:965) | at javassist.ClassPool.toClass(ClassPool.java:947) | ... 6 more Of course, if I don't use the Hello class before injecting that method, it works fine. All the sample programs that I found on the net are showing a method injection without any prior use. However, my requirement is that, I have to be able to change a class while the system is running. Is there any way that we can do that? Your help is greatly appreciated... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127954#4127954 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127954

18 years, 2 months

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[JBoss Seam] - Re: Migrating Seam application from Windows to Redhat

by supernovasoftware.com

Thanks Norman. That is what I figured. If anyone else has tips, please let me know. This is why I hired the consultant fast track things like: 1. Setting multiple JBAS instances to start of on separte IP addresses 2. Make these services start after PostgreSQL 3. General security and management concerns. 4. Make me a kickstart install disk. Where would be the best place to ask the following licensing questions? 1. Can I include JBoss LGPL products on the kickstart that will install the OS? 2. Can I include my closed source application based on JBoss LGPL products on my kickstart disk? This kickstart disk is mainly for disaster recovery and will not be distributed as a generic installer for the application. I will however install fresh copy of Linux. Run a script to set up the database and JBAS and deploy my application. I can put the application setup on a separate disk if necessary, but would rather not. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127951#4127951 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127951

18 years, 2 months

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[JBoss Seam] - Re: Legacy code: Integrating with existing servlet

by tonylmai

I have put the specific prefix but I still can't get it to work. <web:context-filter url-pattern="http://localhost:8080/trading/getchart/" /> | My servlet is as followed: public class GetChart extends HttpServlet { | private static final long serialVersionUID = -6087384050664740696L; | | @In("wcQuoteDS") | private ChartDatasource quoteDS; | | protected void doGet(HttpServletRequest request, HttpServletResponse response) ..... | try { | try { | quoteDS = (ChartDatasource) Component.getInstance("wcQuoteDS"); | | .... // Problematic | | } catch (Exception e) { | e.printStackTrace(); | } | } | ChartDatasourcebean is as followed: @Scope(ScopeType.APPLICATION) | @Name("wcQuoteDS") | @Startup(depends={"wcClientMgr"}) | public class QuoteDatasource implements .... { | @In (required = true) | private static ClientManager wcClientMgr; | | ... | { | I can't figure out what is wrong with it. Can someone help? Thanks -Tony View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127950#4127950 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127950

18 years, 2 months

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[JBoss Seam] - Re: How do I fetch the HTML source of a page programatically

by JakeC

OK, I think I'm getting much closer. MailComponent.encode() has the process down, but from within a UIComponent, which renders differently. However, the info from Monkey shows how to render from outside a UIComponent, and org.jboss.seam.ui.facelet.FaceletsRenderer showed how to create a ResponseWriter (the one from FacesContext is null). Here is what I have so far: try { | FacesContext facesContext = FacesContext.getCurrentInstance(); | ViewHandler viewHandler = facesContext.getApplication().getViewHandler(); | UIViewRoot viewRoot = viewHandler.restoreView(facesContext, "/myDir/myPage.xhtml"); | if(viewRoot == null) { | log.info("restoreView returned null, calling createView"); | viewRoot = viewHandler.createView(facesContext, "/myDir/myPage.xhtml"); | } | StringWriter stringWriter = new StringWriter(); | ResponseWriter originalResponseWriter = facesContext.getResponseWriter(); | if(originalResponseWriter == null) { | log.info("responseWriter is null, creating new one"); | facesContext.setResponseWriter(facesContext.getRenderKit().createResponseWriter(stringWriter, null, null)); | } else { | ResponseWriter cachingResponseWriter = originalResponseWriter.cloneWithWriter(stringWriter); | facesContext.setResponseWriter(cachingResponseWriter); | } | viewHandler.renderView(facesContext, viewRoot); | if(originalResponseWriter != null) | facesContext.setResponseWriter(originalResponseWriter); | String output = stringWriter.getBuffer().toString(); | log.info("Rendered data: {0}", output); | } catch (Throwable t) { | log.error("Error rendering: {0}", t, t.getMessage()); | } Here is the output I got: restoreView returned null, calling createView | responseWriter is null, creating new one | Rendered data: The call to restoreView() returns null, so I call createView(). I suspect that this may be my problem. I'm getting nothing rendered because I am creating a new view, not restoring my existing one. The viewId I'm using is "/myDir/myPage.xhtml", like I would refer to it in in pages.xml. Is this incorrect? If so, what should I use for viewId? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127949#4127949 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127949

18 years, 2 months

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[JBoss Seam] - Re: Natural conversation for wildcard view-id

by monkeyden

I was just reviewing a thread regarding support for wildcards in from-action. Add a comment to the JIRA issue. I'd like to see it. I have one action which takes two parameters and can have many combinations. I'd hate to have to configure each of them. Thread http://www.jboss.com/index.html?module=bb&op=viewtopic&t=114071 Jira: http://jira.jboss.org/jira/browse/JBSEAM-2481 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127948#4127948 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127948

18 years, 2 months

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[JBoss Seam] - Re: Migrating Seam application from Windows to Redhat

by norman.richards＠jboss.com

I've never had any problems moving Seam apps between machines. Unless you've done something platform-specific, everything should be fine. You might find that different VM/network configuration settings will work better on Linux than on Windows, but all that is at the appserver level and not in your application itself. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127947#4127947 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127947

18 years, 2 months

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[EJB/JBoss] - Re: jboss 5.0 release date

by mohammadk

Thanks for the quick response. Please correct me if I'm wrong, but my understanding is that DI (Dependency Injection) in Servlet Container is not available with AS 4.2.X. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127946#4127946 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127946

18 years, 2 months

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[JBoss Seam] - Re: When to use @PersistenceContext vrs @In EntityManager (S

by norman.richards＠jboss.com

Christmas shopping is going to be easy this year! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127945#4127945 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4127945

18 years, 2 months

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jboss-user February 2008