felix-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Karl Pauls (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (FELIX-388) Startup delay due to ExtensionManager
Date Wed, 03 Oct 2007 07:25:50 GMT

     [ https://issues.apache.org/jira/browse/FELIX-388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karl Pauls reassigned FELIX-388:
--------------------------------

    Assignee: Karl Pauls

> Startup delay due to ExtensionManager
> -------------------------------------
>
>                 Key: FELIX-388
>                 URL: https://issues.apache.org/jira/browse/FELIX-388
>             Project: Felix
>          Issue Type: Improvement
>          Components: Framework
>            Reporter: Felix Meschberger
>            Assignee: Karl Pauls
>
> The ExtensionManager creates its own URL using itself as the URLStreamHandler. The URL
is inserted into the URL ClassLoader launching the framework. If a resource is to be found
using this URL, the equals method is called which causes the host name of the URL (extension)
to be resolved by InetAddress.getByName(name).
> As the host is not in any DNS (most probably) and the name does not matter anyway, resolution
of the host name seems to be overkill and just delay operation. To prevent this lookup, I
propose to overwrite the URLStreamHandler.getHostAddress(URL) in the ExtensionManager to just
immediately return null:
> Index: /usr/src/felix/trunk/framework/src/main/java/org/apache/felix/framework/ExtensionManager.java
> ===================================================================
> --- /usr/src/felix/trunk/framework/src/main/java/org/apache/felix/framework/ExtensionManager.java
(revision 581194)
> +++ /usr/src/felix/trunk/framework/src/main/java/org/apache/felix/framework/ExtensionManager.java
(working copy)
> @@ -20,6 +20,7 @@
>  
>  import java.io.IOException;
>  import java.io.InputStream;
> +import java.net.InetAddress;
>  import java.net.URL;
>  import java.net.URLConnection;
>  import java.net.URLStreamHandler;
> @@ -566,4 +567,10 @@
>              m_extensions.add(extension);
>          }
>      }
> +    
> +    protected InetAddress getHostAddress( URL u )
> +    {
> +        // the extension URLs do not address real hosts
> +        return null;
> +    }
>  }

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message