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Ruby on Rails Linked Data content negotiation skeleton code. ============================================================ This is a complete (though very simple!) Ruby on Rails application (version 2.3.2). The only non-standard files are the following: - app/controllers/resources_controller.rb - This is the file that actually does the content negotiation, using the standard Rails 'respond_to' method. - config/environment.rb - includes the definition of the application/rdf+xml MIME type and maps it to the .rdf extension. - config/routes.rb - maps URLs of the form <domain>/resources/<id> to the 'show' action of 'resources_controller' - app/views/resources/show.erb - to generate the HTML representation of a resource (dummy code only) - app/views/resources/show.rxml - to generate the RDF representaiton of a resource (dummy code only) This example assumes the following approach to URIs: http://<my domain>/resources/<resource_name> - URI for the resource http://<my domain>/resources/<resource_name>.html - HTML description of the resource http://<my domain>/resources/<resource_name>.rdf - RDF description of the resource To run the application you will need to set up an empty MySQL database called 'conneg_development' with user 'root' and password 'admin' or of course adapt the file config/database.yml to match your own choices for database name and account details. To check if it is working: -------------------------- 1. run the app in development mode 2. In your browser, enter the url http://localhost:3000/resources/test1 3. You should be redirected to http://localhost:3000/resources/test1.html and see the text "HTML description of the resource here." 4. In your browser, enter the url http://localhost:3000/resources/test1.rdf - you should see some valid RDF 5. From the command line (on Unix like systems) enter: curl -v -H "Accept: application/rdf+xml" http://localhost:3000/resources/test1 You should get a response like this: > GET /resources/test1 HTTP/1.1 > User-Agent: curl/7.16.3 (powerpc-apple-darwin9.0) libcurl/7.16.3 OpenSSL/0.9.7l zlib/1.2.3 > Host: localhost:3000 > Accept: application/rdf+xml > < HTTP/1.1 303 See Other < Connection: close < Date: Mon, 06 Jul 2009 10:05:18 GMT < X-Runtime: 3 < Location: http://localhost:3000/resources/test1.rdf < Content-Type: application/rdf+xml; charset=utf-8 < Cache-Control: no-cache < Content-Length: 107 < Any questions, contact me at firstname.lastname@example.org Bill Roberts, 06 July, 2009. The code in this example is released under the MIT license http://www.opensource.org/licenses/mit-license.php Copyright (c) 2009, Swirrl IT Ltd., http://www.swirrl.com