[Activerdf] YARS connection error

[Ingo Paulsen]

Hi,

I've installed the yars.war file in my tomcat webapps directory.

When I'm trying to connect from irb to the yars data-store I got this 
error message for the first time:

irb(main):001:0> require 'active_rdf'
=> true
irb(main):002:0> NodeFactory.connection( :adapter => :yars, :context => 
'yars', :host => 'localhost' )
NoMethodError: undefined method `size' for false:FalseClass
        from 
/usr/local/lib/ruby/1.8/active_rdf/src/node_factory.rb:406:in 
`construct_class_model'
        from 
/usr/local/lib/ruby/1.8/active_rdf/src/node_factory.rb:155:in `init_adapter'
        from 
/usr/local/lib/ruby/1.8/active_rdf/src/node_factory.rb:109:in `connection'
        from (irb):2
irb(main):003:0> NodeFactory.connection( :adapter => :yars, :context => 
'yars', :host => 'localhost' )
=> #<YarsAdapter:0x5d4364 @port=8080, @host="localhost", 
@adapter_type=:yars, @yars=#<Net::HTTP localhost:8080 open=false>, 
@context="yars", @query_language="n3">


Versions:

Ruby: ruby 1.8.4 (2005-12-24) [powerpc-darwin8.7.0]
Irb: irb 0.9.5(05/04/13)

The second time it works. What's the reason for this behaviour?
Am I missing some basic adjustment to have a connection to YARS?


Regards
Ingo