[jira] [Created] (LOG4J2-191) Improve plugin uniqueness by name and type, not just name

["Scott Deboy (JIRA)" <ji...@apache.org>]

Scott Deboy created LOG4J2-191:
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             Summary: Improve plugin uniqueness by name and type, not just name
                 Key: LOG4J2-191
                 URL: https://issues.apache.org/jira/browse/LOG4J2-191
             Project: Log4j 2
          Issue Type: Bug
            Reporter: Scott Deboy


I have a default/no-op 'advertiser' implementation:
@Plugin(name = "default", type = "Core", elementType = "advertiser", printObject = false)
public class DefaultLeftOut implements Advertiser {

If some other person names another plugin as 'default' in 'core' (admittedly default is a terrible name and I should rename it)...we will have a problem.

I think the element type should be part of the resolution..

Still using:
PluginManager pluginManager = new PluginManager("Core");
pluginManager.collectPlugins();

But instead of code using:
PluginType type = getPluginManager().getPluginType(name);
(with name = 'default' in this Advertiser case, giving me a DefaultAdvertiser)

Maybe:
PluginType type = getPluginmanager().getPluginType(elementType, name);
(with elementType = 'advertiser' and name = 'default' in this advertiser case)

In theory, we should also update the Maps in pluginmanager to support this uniqueness...right now we collide just on 'name' in the type.

Right now, the last one wins, which isn't ideal.

At least we'd reduce the likelihood of collisions.  

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