[jboss-jira] [JBoss JIRA] Assigned: (JBMICROCONT-159) Multiple components

[Adrian Brock (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBMICROCONT-159?page=all ]

Adrian Brock reassigned JBMICROCONT-159:
----------------------------------------

    Assignee: Adrian Brock

> Multiple components 
> --------------------
>
>                 Key: JBMICROCONT-159
>                 URL: http://jira.jboss.com/jira/browse/JBMICROCONT-159
>             Project: JBoss MicroContainer
>          Issue Type: Bug
>          Components: Deployment
>    Affects Versions:  JBossMC_2_0_0 Beta3
>            Reporter: Scott M Stark
>         Assigned To: Adrian Brock
>
> There is a problem with how component deployments are handled. When a DeploymentUnit contains multiple sources of component metadata (a jar with a META-INF/*-beans.xml,*-service.xml for example), duplicate processing of components is occuring. This is due to the AbstractComponentDeployer.deployComponents query for the component metadata:
>    protected void deployComponents(DeploymentUnit unit) throws DeploymentException
>    {
>       if (compVisitor == null)
>          return;
>       Set<? extends C> components = unit.getAllMetaData(componentType);
>       for (C component : components)
>          compVisitor.deploy(unit, component);
>    }
> The DeploymentUnit.getAllMetaData(componentType) for the current DeploymentComponentContext looks to its parent for metadata. This combined with the recursive processing in the MainDeployerImpl.commitDeploy:
>    private void commitDeploy(Deployer deployer, DeploymentContext context, Set<DeploymentContext> components)
>       throws DeploymentException
>    {
>       DeploymentContext[] theComponents = null;
>       if (components != null && components.isEmpty() == false)
>          theComponents = components.toArray(new DeploymentContext[components.size()]);
>       
>       DeploymentUnit unit = context.getDeploymentUnit();
>       deployer.commitDeploy(unit);
>       try
>       {
>          if (theComponents != null)
>          {
>             for (int i = 0; i < theComponents.length; ++i)
>             {
>                try
>                {
>                   Set<DeploymentContext> componentComponents = theComponents[i].getComponents();
>                   commitDeploy(deployer, theComponents[i], componentComponents);
>                }
>                catch (DeploymentException e)
>                {
>                   // Unwind the previous components
>                   for (int j = i-1; j >=0; --j)
>                      prepareUndeploy(deployer, theComponents[j], true);
>                   throw e;
>                }
>             }
>          }
>       }
>       catch (DeploymentException e)
>       {
>          prepareUndeploy(deployer, context, false);
>          throw e;
>       }
>    }
> Results in a structure like:
> DU(some.jar)
>  + CDC(Bean1)
>     + CDC(ServiceBean2)
>  + CDC(Bean2)
>     + CDC(ServiceBean2)
>  + CDC(ServiceBean1)
>     + CDC(ServiceBean2)
>  + CDC(ServiceBean2)
> The service deployer components are being recursively added to the kernel components and duplicate install errors result.
> See the org.jboss.test.deployers.deployer.test.MultipleComponentTypeUnitTestCase

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