cstamas commented on a change in pull request #616:
URL: https://github.com/apache/maven/pull/616#discussion_r783084437



##########
File path: 
maven-embedder/src/main/java/org/apache/maven/cli/internal/BootstrapCoreExtensionManager.java
##########
@@ -114,14 +123,42 @@ private CoreExtensionEntry createExtension( CoreExtension 
extension, List<Artifa
     {
         String realmId =
             "coreExtension>" + extension.getGroupId() + ":" + 
extension.getArtifactId() + ":" + extension.getVersion();
-        ClassRealm realm = classWorld.newRealm( realmId, null );
-        log.debug( "Populating class realm " + realm.getId() );
-        realm.setParentRealm( parentRealm );
+        final ClassRealm realm = classWorld.newRealm( realmId, null );
+        Set<String> providedArtifacts = Collections.emptySet();
+        String classLoadingStrategy = extension.getClassLoadingStrategy();
+        if ( STRATEGY_PARENT_FIRST.equals( classLoadingStrategy ) )
+        {
+            realm.importFrom( parentRealm, "" );
+        }
+        else if ( STRATEGY_PLUGIN.equals( classLoadingStrategy ) )
+        {
+            coreExports.getExportedPackages().forEach( ( p, cl ) -> 
realm.importFrom( cl, p ) );
+            providedArtifacts = coreExports.getExportedArtifacts();
+        }
+        else if ( STRATEGY_SELF_FIRST.equals( classLoadingStrategy ) )
+        {
+            realm.setParentRealm( parentRealm );
+        }
+        else
+        {
+            throw new IllegalArgumentException( "Unsupported class-loading 
strategy '"
+                    + classLoadingStrategy + "'. Supported values are: " + 
STRATEGY_PARENT_FIRST
+                    + ", " + STRATEGY_PLUGIN + " and " + STRATEGY_SELF_FIRST );
+        }
+        log.debug( "Populating class realm {}", realm.getId() );
         for ( Artifact artifact : artifacts )
         {
-            File file = artifact.getFile();
-            log.debug( "  Included " + file );
-            realm.addURL( file.toURI().toURL() );
+            String id = artifact.getGroupId() + ":" + artifact.getArtifactId();
+            if ( providedArtifacts.contains( id ) )
+            {
+                log.debug( "  Excluded {}", id );
+            }
+            else
+            {
+                File file = artifact.getFile();
+                log.debug( "  Included {}", file );

Review comment:
       +1 for this pattern, I use it as well: emit (same) DEBUG message w/ less 
or more info... make possible grepping as well, etc.




-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]


Reply via email to