xmlrpc (working on mac, not on linux, why?)

[Zac Elston]

I'm guessing I missed some install, but I can't find out what because
the error.

OSX ruby 1.8.2 (2004-12-25) [powerpc-darwin8.0]
RHEL4 ruby 1.8.3 (2005-09-21) [i386-linux]

ERROR LoadError: no such file to load -- rexml/namespace
where do I get that?

same script teaching myself xmlrpc on both OSX and RHEL4

server:

#!/usr/bin/ruby
require 'webrick'
require 'xmlrpc/server.rb'

# create a servlet to handle XML-RPC requests:
servlet = XMLRPC::WEBrickServlet.new
servlet.add_handler("upper_case") { |a_string| a_string.upcase }
servlet.add_handler("lower_case") { |a_string| a_string.downcase }

# create a WEBrick instance to host this servlet:
server=WEBrick::HTTPServer.newPort => 9090)
trap("INT"){ server.shutdown }
server.mount("/RPC2", servlet)
server.start

Client:

#!/usr/bin/ruby
require 'xmlrpc/client'
server = XMLRPC::Client.new("127.0.0.1", "/RPC2", 9090)
puts server.call("upper_case", "The fat dog chased the cat on Elm
Street.")
puts server.call("lower_case", "The fat dog chased the cat on Elm
Street.")


running this on linux I get
[root@adml-v01 agent]# ./s1
[2007-02-21 13:49:47] INFO WEBrick 1.3.1
[2007-02-21 13:49:47] INFO ruby 1.8.3 (2005-09-21) [i386-linux]
[2007-02-21 13:49:47] INFO WEBrick::HTTPServer#start: pid=17086
port=9090

localhost.localdomain - - [21/Feb/2007:13:50:07 EST] "POST /RPC2
HTTP/1.1" 200 0
- -> /RPC2
[2007-02-21 13:50:07] ERROR LoadError: no such file to load --
rexml/namespace
/usr/lib/ruby/1.8/rexml/element.rb:2:in `require'
/usr/lib/ruby/1.8/rexml/element.rb:2
/usr/lib/ruby/1.8/rexml/document.rb:1
/usr/lib/ruby/1.8/xmlrpc/parser.rb:700:in `initialize'
/usr/lib/ruby/1.8/xmlrpc/utils.rb:48:in `parser'
/usr/lib/ruby/1.8/xmlrpc/server.rb:309:in `process'
/usr/lib/ruby/1.8/xmlrpc/server.rb:760:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start'
./s1:14
/usr/lib/ruby/1.8/xmlrpc/utils.rb:159:in `parse_content_type': private
method `split' called for nil:NilClass (NoMethodError)
from /usr/lib/ruby/1.8/xmlrpc/client.rb:549:in `do_rpc'
from /usr/lib/ruby/1.8/xmlrpc/client.rb:420:in `call2'
from /usr/lib/ruby/1.8/xmlrpc/client.rb:410:in `call'
from ./c1:4


HUH?