[jboss-jira] [JBoss JIRA] (DROOLS-194) Add support in KIE to register custom Wagons

[Kurt Stam (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12808727#comment-12808727 ] 

Kurt Stam commented on DROOLS-194:
----------------------------------

Hi Mario,

1. We store the kieJars in our S-RAMP repository (instead of maven). 

2. Now when KIE wants to read this kiejar (https://github.com/Governance/dtgov/blob/master/dtgov-war/src/main/java/org/overlord/dtgov/jbpm/util/KieUtil.java) we register the sramp Wagon extension:
     
<code>
Extension extension = new Extension();
     extension.setArtifactId("s-ramp-wagon"); //$NON-NLS-1$
     extension.setGroupId("org.overlord.sramp"); //$NON-NLS-1$
     extension.setVersion(wagonVersion);
     build.addExtension(extension);
     project.setBuild(build);
</code>
So this registers the sramp protocol.

The issue is that in your Aether class you don't honor this custom protocol. So to fix this we added
<code>
@Override
        public Wagon lookup( String roleHint ) throws Exception {
            if ( "http".equals( roleHint ) ) { //$NON-NLS-1$
                return new AhcWagon();
            }
            if ( "sramp".equals( roleHint ) ) { //$NON-NLS-1$
                return new SrampWagonProxy();
            }
            return null;
        }

</code>
However it should be possible to have it figure this out byitself; or at least one should be able to add Wagon by way of configuration.

I'm going to add a test for it using something like the FileWagon so you don't need a running S-RAMP server.

                
> Add support in KIE to register custom Wagons
> --------------------------------------------
>
>                 Key: DROOLS-194
>                 URL: https://issues.jboss.org/browse/DROOLS-194
>             Project: Drools
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>            Reporter: Kurt Stam
>            Assignee: Mark Proctor
>
> The ManualWagonProvider subclass of Aether in KIE registers the HTTPWagon. It should be possible to add your own Wagon through config our automated machinery when another Wagon is put on the classpath and references in the build/extensions of a MavenProject. To get the SrampWagon to work we used the following code:
> {quote}
> private static class ManualWagonProvider implements WagonProvider {
>         public Wagon lookup( String roleHint ) throws Exception {
>             if ( "http".equals( roleHint ) ) {
>                 return new AhcWagon();
>             }
>             if ( "sramp".equals( roleHint ) ) {
>                 return new SrampWagon();
>             }
>             return null;
>         }
>         public void release( Wagon wagon ) { }
>     }
> {quote}

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