Migrating to 2.0.0 using PropertyConfigurator

[shelly2k]

Hi

We have an 1.x installation of JBoss cache and are looking to move to the 2.0.0 branch.

We configure the cache using a well know remote location, i.e. we serve out the config.xml file from a webserver. All chache clients know the location of the server and configure themselves using the xml file returned via a http request:

public CacheManager( final InputStream is, final String clusterName ) throws Exception {
PropertyConfigurator configurator = new PropertyConfigurator();
TreeCache cache = new TreeCache();
configurator.configure( cache, xmlConfigUrl );
configurator.configure( cache, is );
cache.setFetchInMemoryState( true );
if ( clusterName != null )
{
 cache.setClusterName( clusterName );
}
cache.start();
...
}

How do we do this in 2.0.0. The createCache calls provided by the factory only only seem to take string references or a bool to start it.

I would be very grateful of a pointer in the right direction.

[manik]

Hmm. From 2.1.0.GA onwards, I can overload ConfigurationFactory.createCache(String, boolean) with createCache(InputStream, boolean) and createCache(URL, boolean).

But for 2.0.0, you'd have to spin this by hand, unfortunately, doing something like the following:

1. Subclass org.jboss.cache.factories.XmlConfigurationParser and add a method to parse a URL.
2. In your method, call (protected) method XmlConfigurationParser.parseStream(InputStream is)
3. ... and get a hold of a Configuration object which you can then pass in to the ConfigurationFactory.

[shelly2k]

Manik

Thanks for the swift response, sanity returns. phew...

I've spent a good deal of time trying to figure out how I was going to achieve this as the docs quite clearly state that I can use an input stream but I just could not find the class or subclass that could do this.
Section 2.2 and 3.2 of
http://labs.jboss.com/file-access/default/members/jbosscache/freezone/docs/2.0.0.GA/JBossCache-UserGuide/en/html_single/index.html#configuration

The bizare schemes I had in my head can now go and make way for the more elegant solution you have suggested... Thanks again!

[brian.stansberry]

Yeah, that's my bad. :( At one point earlier in the 2.0 dev process the method that takes InputStream was public, later got changed. I didn't notice that reference to it when I edited the docs.

[manik]

FYI

http://jira.jboss.org/jira/browse/JBCACHE-1208