Thank you for your help. ExceptionHelper works fine. Jens
----- Original Message ----- From: "Stephen McConnell" <[EMAIL PROTECTED]> To: "Avalon framework users" <[EMAIL PROTECTED]> Sent: Friday, July 25, 2003 2:28 AM Subject: Re: Exception Handling in Avalon > > You could grap a copy of the source file reference below and include it > in with your other sources. Its a class that handles exception > reporting and will list out of the cuasal exception messages followed by > a stack track of the root exception. > > http://cvs.apache.org/viewcvs.cgi/avalon-sandbox/merlin/composition-spi/src/ java/org/apache/avalon/composition/util/ExceptionHelper.java > > Here is a usage example: > > try > { > // whatever > } > catch( Throwable e ) > { > String problem = ExceptionHelper.packException( "Woops", e, true ); > System.out.println( problem ); > } > > Cheers, Steve. > > > Jens Kintrup wrote: > > >Hello, > > > >I am new to this list, this is my first posting and first of all, I want to > >say 'thank's' to the avalon developer community. It think its a very nice > >pice of software and I enjoyed it very much to learn about it. > > > >And now my question: I have tried to use the > >org.apache.avalon.framework.component.DataSourceComponent in a little > >Application build on fortress. I did some mistakes in the Configuration > >Files (roles) - it was not valid XML. At Application startup i got the > >following Error: > > > > [java] org.apache.avalon.fortress.InitializationException: Cannot set > >up Container. Startup lifecycle failure > > [java] at > >org.apache.avalon.fortress.impl.DefaultContainerManager.createContainer(Def a > >ultContainerManager.java:230) > > [java] at > >org.apache.avalon.fortress.impl.DefaultContainerManager.initializeContainer ( > >DefaultContainerManager.java:167) > > [java] at > >org.apache.avalon.fortress.impl.DefaultContainerManager.initialize(DefaultC o > >ntainerManager.java:160) > > [java] at > >org.apache.avalon.framework.container.ContainerUtil.initialize(ContainerUti l > >.java:282) > > [java] at > >net.kintrup.learning.avalon.simple.Main.main(Main.java:31) > > > >The general Startup lifecycle failure message did *not* lead me to the real > >error - an incorrect Configuration in the roles file. I took a look at the > >source code (the DefaultContainerManager in this case) and found out, that > >avalon uses a kind of nested Exceptions. Is this true? If yes, how do I get > >the "real root cause" of the Error message? I tried something like > >(Main.java - nearly the same as in the example) > >try { > > > >String res = "resource://my/ressources"; > > > >final FortressConfig config = new FortressConfig(); > > > >config.setContainerConfiguration( res + "/SimpleContainer.xconf"); > > > >config.setRoleManagerConfiguration( res + "/SimpleContainer.roles"); > > > >config.setLoggerManagerConfiguration( res + "/SimpleContainer.xlog" ); > > > >ContainerManager cm = new DefaultContainerManager( config.getContext() ); > > > >ContainerUtil.initialize( cm ); > > > > > >DefaultContainer container = (DefaultContainer)cm.getContainer(); > > > >SimpleComponent simple = > >(SimpleComponent)container.getServiceManager().lookup( > >SimpleComponent.ROLE ); > > > >System.out.println( "SimpleComponent says: " + simple.getName() ); > > > >container.getServiceManager().release( simple ); > > > >ContainerUtil.dispose( cm ); > > > >} catch( Exception e) { > > > >e.printStackTrace(); > > > >while( e.getCause() != null ) { > > > >if( e instanceof Exception ) { > > > >e = (Exception)e.getCause(); > > > >} > > > >e.printStackTrace(); > > > >} > > > >} > > > >This did not work. Do I overlook something in Error Handling? > > > >Thank you very much for your help, > >Jens > > > > > > > >--------------------------------------------------------------------- > >To unsubscribe, e-mail: [EMAIL PROTECTED] > >For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > -- > > Stephen J. McConnell > mailto:[EMAIL PROTECTED] > http://www.osm.net > > Sent via James running under Merlin as an NT service. > http://avalon.apache.org/sandbox/merlin > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
