From: jm <jeffm@...>
Date: 2005-05-14T13:19:36+09:00
Subject: Re: strange error from soap server


Seems that SOAP::RPC::StandaloneServer uses inherits  from 
Logger::Application which uses the call to
  Logger::debug(progname = nil, &block) which is different to the call 
to WEBrick::Logger.debug(msg). So that  changing the logger, thusly,

logger = Logger.new(logfilename)
logger.level = Logger::INFO

s=WEBrick::HTTPServer.new(
   :BindAddress    => "127.0.0.1",
   :Port           => 3000,
   :Logger         => logger
)

fixes the problem. Any chance this will be straightened out in the next 
release as this through me for a six.

J.

On 13/05/2005, at 11:42 PM, jm wrote:

> I came across this with a larger program to expose the functionality 
> of a class via a SOAP interface. The original class passes all test, 
> but the SOAP server generates a strange error which I have no idea how 
> to solve even after staring at it for hours. The below is a very cut 
> down version that produces the same error. It's most likely something 
> to do with the way soap4r is being called in the server as the line 
> protocol looks correct at a cursory glance, but where and what?
>
> See below for the source code.
>
> the client returns this error
> $ ruby lib/dummy_client.rb
> Loaded suite lib/dummy_client
> Started
> E
> Finished in 0.015137 seconds.
>
>   1) Error:
> test_ping_pong(DummySoap):
> SOAP::EncodingStyle::Handler::EncodingStyleError: Illegal parent: .
>     /usr/lib/ruby/1.8/soap/encodingstyle/soapHandler.rb:253:in 
> `decode_parent'
>     /usr/lib/ruby/1.8/soap/encodingstyle/soapHandler.rb:131:in 
> `as_struct'
>     /usr/lib/ruby/1.8/soap/encodingstyle/soapHandler.rb:232:in 
> `decode_parent'
>     /usr/lib/ruby/1.8/soap/encodingstyle/soapHandler.rb:131:in 
> `as_struct'
>     /usr/lib/ruby/1.8/soap/encodingstyle/soapHandler.rb:232:in 
> `decode_parent'
>     /usr/lib/ruby/1.8/soap/encodingstyle/soapHandler.rb:142:in 
> `as_string'
>     /usr/lib/ruby/1.8/soap/encodingstyle/soapHandler.rb:202:in 
> `decode_tag_end'
>     /usr/lib/ruby/1.8/soap/parser.rb:191:in `decode_tag_end'
>     /usr/lib/ruby/1.8/soap/parser.rb:152:in `end_element'
>     /usr/lib/ruby/1.8/xsd/xmlparser/parser.rb:75:in `end_element'
>     /usr/lib/ruby/1.8/xsd/xmlparser/rexmlparser.rb:38:in `tag_end'
>     /usr/lib/ruby/1.8/rexml/parsers/streamparser.rb:26:in `parse'
>     /usr/lib/ruby/1.8/rexml/document.rb:171:in `parse_stream'
>     /usr/lib/ruby/1.8/xsd/xmlparser/rexmlparser.rb:27:in `do_parse'
>     /usr/lib/ruby/1.8/soap/parser.rb:90:in `parse'
>     /usr/lib/ruby/1.8/soap/processor.rb:39:in `unmarshal'
>     /usr/lib/ruby/1.8/soap/rpc/proxy.rb:191:in `unmarshal'
>     /usr/lib/ruby/1.8/soap/rpc/proxy.rb:118:in `invoke'
>     /usr/lib/ruby/1.8/soap/rpc/proxy.rb:131:in `call'
>     /usr/lib/ruby/1.8/soap/rpc/driver.rb:275:in `call'
>     /usr/lib/ruby/1.8/soap/rpc/driver.rb:302:in `ping'
>     /usr/lib/ruby/1.8/soap/rpc/driver.rb:297:in `ping'
>     lib/dummy_client.rb:15:in `test_ping_pong'
>
> 1 tests, 0 assertions, 0 failures, 1 errors
>
> this error is logged by the server
>
> [2005-05-13 23:29:07] ERROR ArgumentError: wrong number of arguments 
> (0 for 1)
>         /usr/lib/ruby/1.8/soap/rpc/soaplet.rb:100:in `debug'
>         /usr/lib/ruby/1.8/soap/rpc/soaplet.rb:100:in `do_POST'
>         /usr/lib/ruby/1.8/webrick/httpservlet/abstract.rb:35:in 
> `__send__'
>         /usr/lib/ruby/1.8/webrick/httpservlet/abstract.rb:35: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:155:in `start_thread'
>         /usr/lib/ruby/1.8/webrick/server.rb:144:in `start'
>         /usr/lib/ruby/1.8/webrick/server.rb:144:in `start_thread'
>         /usr/lib/ruby/1.8/webrick/server.rb:94:in `start'
>         /usr/lib/ruby/1.8/webrick/server.rb:89:in `each'
>         /usr/lib/ruby/1.8/webrick/server.rb:89:in `start'
>         /usr/lib/ruby/1.8/webrick/server.rb:79:in `start'
>         /usr/lib/ruby/1.8/webrick/server.rb:79:in `start'
>         lib/dummy_soap.rb:36
>
> #### dummy_soap.rb
> #!/usr/bin/ruby
>
> $LOAD_PATH.unshift File.join(File.dirname(__FILE__), "..","lib")
> require 'webrick'
> require 'soap/rpc/soaplet'
>
> class Dummy
>   def ping
>     'pong'
>   end
> end
>
> class HTTPAccessDenied < WEBrick::HTTPServerError; end
>
> #defaults
> basedir = 
> File::dirname(File::expand_path(__FILE__)).split('/')[0..-2].join('/')
> logfilename = 'dummy.log'
> docroot     = File.join(basedir,"html")
>
> s=WEBrick::HTTPServer.new(
>   :BindAddress    => "127.0.0.1",
>   :Port           => 3000,
>   :Logger         => WEBrick::Log::new(logfilename, 
> WEBrick::Log::INFO),
>   :DocumentRoot   => docroot
> )
>
> srv = SOAP::RPC::SOAPlet.new
> srv.add_servant(Dummy.new,'urn:FWControl')
>
>
> # Mount it at somewhere.
> s.mount("/soap", srv)
> trap("INT"){ s.shutdown }
> s.start
>
> ### dummy_client.rb
> #!/usr/bin/ruby
> $LOAD_PATH.unshift File.join(File.dirname(__FILE__), "..","lib")
> require 'test/unit'
> require 'soap/rpc/driver'
>
> URL="http://127.0.0.1:3000/soap"
> NS="urn:Dummy"
>
> class DummySoap < Test::Unit::TestCase
>   def setup
>     @proxy = SOAP::RPC::Driver.new(URL,NS)
>     @proxy.add_method('ping')
>   end
>   def test_ping_pong
>     assert_equal('pong',@proxy.ping)
>   end
> end
>
>