Class: VORuby::Services::Registry::STScI

Inherits:
Object
  • Object
show all
Defined in:
lib/voruby/services/registry/registry.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(driver, debug = false) ⇒ STScI

Returns a new instance of STScI.



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# File 'lib/voruby/services/registry/registry.rb', line 13

def initialize(driver, debug=false)
  @driver = driver
  @driver.wiredump_dev = $stderr if debug
  
  # This is basically a big hack.  We are going to ignore everything soap4r
  # does for us in terms of interpreting the result of a query.  Instead
  # we'll dump the raw SOAP to file and parse it on our own.  This is obviously
  # not optimal, but works for now.
  @driver.wiredump_file_base = Dir::tmpdir() + '/stsci_registry'
end

Instance Attribute Details

#driver ⇒ Object (readonly)

Returns the value of attribute driver.



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# File 'lib/voruby/services/registry/registry.rb', line 11

def driver
  @driver
end

#factory ⇒ Object (readonly)

Returns the value of attribute factory.



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# File 'lib/voruby/services/registry/registry.rb', line 11

def factory
  @factory
end

Class Method Details

.from_wsdl(wsdl = "http://nvo.stsci.edu/VORegistry/registry.asmx?WSDL", debug = false) ⇒ Object 



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# File 'lib/voruby/services/registry/registry.rb', line 24

def self.from_wsdl(wsdl="http://nvo.stsci.edu/VORegistry/registry.asmx?WSDL", debug=false)
  return STScI.new(SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver, debug)
end

Instance Method Details

#queryVOResource(predicate) ⇒ Object 



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# File 'lib/voruby/services/registry/registry.rb', line 28

def queryVOResource(predicate)
  params = {'predicate' => predicate}
  
  request_file = @driver.wiredump_file_base() + '_queryVOResource_request.xml'
  response_file = @driver.wiredump_file_base() + '_queryVOResource_response.xml'
  
  # Query the registry
  @driver.queryVOResource(params.to_soap_map)
  
  # Parse the returned SOAP envelope and extract the query result
  soap_envelope = REXML::Document.new File.new(response_file)
  response = REXML::XPath.first(soap_envelope.root, '//QueryVOResourceResult')
  
  # Convert the result into our own domain objects
  resources = VORuby::Resources::STScI::ArrayOfResource.load_from_xml(VORuby::Resources::STScI::clean(response))
  
  # Clean up the wiredump files.
  File.unlink(request_file, response_file)
  
  return resources
end