lib/isbm_adaptor/provider_request.rb
require 'isbm_adaptor/client'
module IsbmAdaptor
class ProviderRequest < IsbmAdaptor::Client
# Creates a new ISBM ProviderRequest client.
#
# @param endpoint [String] the SOAP endpoint URI
# @option options [Array<String>] :wsse_auth username and password, i.e. [username, password]
# @option options [Object] :logger (Rails.logger or $stdout) location where log should be output
# @option options [Boolean] :log (true) specify whether requests are logged
# @option options [Boolean] :pretty_print_xml (false) specify whether request and response XML are formatted
def initialize(endpoint, options = {})
super('ProviderRequestService.wsdl', endpoint, options)
end
# Opens a provider request session for a channel for reading requests and
# posting responses.
#
# @param uri [String] the channel URI
# @param topics [Array<String>, String] a collection of topics or single topic
# @param listener_url [String] the URL for notification callbacks
# @param xpath_expression [String] the XPath filter expression
# @param xpath_namespaces [Array<Hash>] the prefixes and namespaces used by the XPath expression. The hash key
# represents the namespace prefix while the value represents the namespace name. For example,
# ["xs" => "http://www.w3.org/2001/XMLSchema", "isbm" => "http://www.openoandm.org/xml/ISBM/"]
# @return [String] the session id
# @raise [ArgumentError] if uri or topics are blank
def open_session(uri, topics, listener_url = nil, xpath_expression = nil, xpath_namespaces = [])
validate_presence_of uri, 'Channel URI'
validate_presence_of topics, 'Topics'
validate_presence_of xpath_expression, 'XPath Expression' if xpath_namespaces.present?
topics = [topics].flatten
# Use Builder to generate XML body as we may have multiple Topic elements
xml = Builder::XmlMarkup.new
xml.isbm :ChannelURI, uri
topics.each do |topic|
xml.isbm :Topic, topic
end
xml.isbm :ListenerURL, listener_url unless listener_url.nil?
xml.isbm :XPathExpression, xpath_expression unless xpath_expression.nil?
xpath_namespaces.each do |prefix, name|
xml.isbm :XPathNamespace do
xml.isbm :NamespacePrefix, prefix
xml.isbm :NamespaceName, name
end
end
response = @client.call(:open_provider_request_session, message: xml.target!)
response.to_hash[:open_provider_request_session_response][:session_id].to_s
end
# Returns the first request message in the message queue for the session.
# Note: this service does not remove the message from the message queue.
#
# @param session_id [String] the session id
# @return [Message] the first message in the queue for the session.
# nil if no message.
# @raise [ArgumentError] if session_id is blank
def read_request(session_id)
validate_presence_of session_id, 'Session Id'
message = { 'SessionID' => session_id }
response = @client.call(:read_request, message: message)
extract_message(response)
end
# Deletes the first request message, if any, in the message queue for the session.
#
# @param session_id [String] the session id
# @return [void]
# @raise [ArgumentError] if session_id is blank
def remove_request(session_id)
validate_presence_of session_id, 'Session Id'
@client.call(:remove_request, message: { 'SessionID' => session_id })
return true
end
# Posts a response message on a channel.
#
# @param session_id [String] the session id
# @param request_message_id [String] the id of the original request message
# @param content [String] a valid XML string as message contents
# @return [String] the response message id
# @raise [ArgumentError] if session_id, request_message_id or content are
# blank, or content is not valid XML
def post_response(session_id, request_message_id, content)
validate_presence_of session_id, 'Session Id'
validate_presence_of request_message_id, 'Request Message Id'
validate_presence_of content, 'Content'
validate_xml content
# Use Builder to generate XML body as we need to concatenate XML message content
xml = Builder::XmlMarkup.new
xml.isbm :SessionID, session_id
xml.isbm :RequestMessageID, request_message_id
xml.isbm :MessageContent do
xml << content
end
response = @client.call(:post_response, message: xml.target!)
response.to_hash[:post_response_response][:message_id].to_s
end
# Closes a provider request session.
#
# @param session_id [String] the session id
# @return [void]
# @raise [ArgumentError] if session_id is blank
def close_session(session_id)
validate_presence_of session_id, 'Session Id'
@client.call(:close_provider_request_session, message: { 'SessionID' => session_id })
return true
end
end
end