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require_relative 'helper.rb'
module OpenTox
# Base class for OpenTox services
class Service < Sinatra::Base
# Default methods, may be overwritten by derived services
# see http://jcalcote.wordpress.com/2008/10/16/put-or-post-the-rest-of-the-story/
# HEAD methods only used if there is no GET method in the particular service
# E.g. "head "/#{SERVICE}/:id/?"" is overwritten by "get '/task/:id/?'"
# The following HEAD methods are only used by the feature service
# HEAD route for service check
# algorithm, dataset, model, compound, and validation overwrite this
head "/#{SERVICE}/?" do
end
# HEAD request for object in backend
# algorithm, dataset, model, compound, and validation overwrite this
head "/#{SERVICE}/:id/?" do
halt 404 unless $mongo[SERVICE].find(:uri => @uri).count > 0
end
get "/#{SERVICE}/swagger" do
end
# Get a list of objects at the server or perform a SPARQL query
get "/#{SERVICE}/?" do
if params[:query]
case @accept
when "text/uri-list" # result URIs are protected by A+A
render $mongo[SERVICE].find(params[:query]).distinct(:uri)
else # prevent searches for protected resources
bad_request_error "Accept header '#{@accept}' is disabled for SPARQL queries at service URIs in order to protect private data. Use 'text/uri-list' and repeat the query at the result URIs.", uri("/#{SERVICE}")
end
else
render $mongo[SERVICE].find.distinct(:uri)
end
end
# internal route not in API
get "/#{SERVICE}/last/ordered/?" do # REQUIRED?
render $mongo[SERVICE].find.sort(:date).distinct(:uri)
end
# Create a new resource
post "/#{SERVICE}/?" do
@body[:uuid] = SecureRandom.uuid
@body[:uri] = uri("/#{SERVICE}/#{@body[uuid]}")
$mongo[SERVICE].insert_one @body
response['Content-Type'] = "text/uri-list"
@uri
end
# Get resource representation
get "/#{SERVICE}/:id/?" do
response = $mongo[SERVICE].find(:uri => @uri)
response.count > 0 ? render(response.first) : resource_not_found_error("#{@uri} not found.")
end
# Modify (i.e. add rdf statments to) a resource
post "/#{SERVICE}/:id/?" do
$mongo[SERVICE].find(:uri => @uri).find_one_and_replace('$set' => JSON.parse(@body))
@uri
end
# Create or updata a resource
put "/#{SERVICE}/:id/?" do
@body = JSON.parse(@body)
@body.delete("_id") # to enable updates
@body[:uri] = @uri
render $mongo[SERVICE].find(:uri => @uri).find_one_and_replace(@body, :upsert => true)
end
# Delete a resource
delete "/#{SERVICE}/:id/?" do
render $mongo[SERVICE].find(:uri => @uri).find_one_and_delete
end
end
end
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