Hi,
I'm trying to write a RESTful web service in Rails. Before processing
each POST request, I want to validate the XML against an XSD schema.
It does not make sense to re-read the schema each time a request is
processed. Therefore, I tried loading the schema once in a global
variable ($schema) at application startup (from environment.rb).
However, only the first schema validation works. Whenever I post a
second request, the xml.validate_schema($schema) call given in the
code snippet below causes a segfault. I've tried storing loading the
schema into a constant (SCHEMA) directly from environment.rb, but that
too, causes a segfault.
--- Code snippet ---
module HelperMethods
require 'xml/libxml'
def self.read_schema
$schema = XML::Schema.from_string(File.read('lib/schemas/trip.xsd'))
end
def self.do_xsd_validation(xml)
error_message = ""
puts("ABOUT TO VALIDATE")
xml.validate_schema($schema) { |message, error|
error_message += message
}
end
end
--- Relevant output, though I don't know how much it'll help ---
ABOUT TO VALIDATE
./lib/helper_methods.rb:15: [BUG] Segmentation fault
ruby 1.8.5 (2006-08-25) [i486-linux]
Aborted (core dumped)
--- in environment.rb I've put the following ---
HelperMethods.read_schema
Saurabh.
--
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