From: David Sulc <davidsulc@...>
Date: 2007-01-13T05:14:40+09:00
Subject: Re: Problem with open-uri

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ChrisH wrote:
> David Sulc wrote:
>   
>> Hi !
>>
>> I'm unable to open certain URIs with open-uri. Here is the code :
>>
>>   require 'rexml/document'
>>   require 'open-uri'
>>   xml = REXML::Document.new(open("http://myoms.net/soap/oms2.wsdl"))
>>
>> The error I get is :
>>
>> /usr/lib/ruby/1.8/rexml/parsers/baseparser.rb:133:in `stream=': Tempfile
>> is not a valid input stream.  It must be  (RuntimeError)
>> either a String, IO, StringIO or Source.
>>     
>
> ran that above code and it worked:
> <?xml version='1.0' encoding='UTF-8'?>
> <definitions name='OnlineMessengerService'
> xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/'
> xmlns:tns='uri://www.myoms.net/'
> xmlns:soapenc='http://schemas.xmlsoap.org/soap/encoding/'
> xmlns:s0='uri://www.myoms.net/types/'
> xmlns:s='http://www.w3.org/2001/XMLSchema'
> targetNamespace='uri://www.myoms.net/'
> xmlns='http://schemas.xmlsoap.org/wsdl/'>
> 	<types>
> 		<s:schema elementFormDefault='qualified'
> attributeFormDefault='qualified'
> targetNamespace='uri://www.myoms.net/types/'>
> 			<s:complexType name='Time'>
> 				<s:sequence>
> 					<s:element maxOccurs='1' name='year' minOccurs='1'
> nillable='false' type='s:long'/>
> ....
>
> Maybe provide the actual code you are running, if it is not exaclty the
> above.
>   
The code I run is different, however this simple example fails too.

What I really don't understand is that if I give a different URL (such 
as "http://www.webservicex.net/genericbarcode.asmx?wsdl"), it's OK.

The complete error stack trace is

/usr/lib/ruby/1.8/rexml/parsers/baseparser.rb:133:in `stream=': Tempfile 
is not a valid input stream.  It must be  (RuntimeError)
either a String, IO, StringIO or Source.        from 
/usr/lib/ruby/1.8/rexml/parsers/baseparser.rb:100:in `initialize'
        from /usr/lib/ruby/1.8/rexml/parsers/treeparser.rb:8:in `initialize'
        from /usr/lib/ruby/1.8/rexml/document.rb:178:in `build'
        from /usr/lib/ruby/1.8/rexml/document.rb:45:in `initialize'
        from test.rb:3

When I reaserched this, all I was able to discover was that it seems to 
be a problem with Ruby's duck typing 
(http://community.livejournal.com/evan_tech/173207.html) and/or REXML.

Any ideas ?



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