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class Puppet::Network::HTTP::Handler
def initialize(args = {})
raise ArgumentError unless @server = args[:server]
raise ArgumentError unless @handler = args[:handler]
@model = find_model_for_handler(@handler)
register_handler
end
# handle an HTTP request coming from Mongrel
def process(request, response)
return @model.find if get?(request) and singular?(request)
return @model.search if get?(request) and plural?(request)
return @model.destroy if delete?(request) and singular?(request)
return @model.new.save if put?(request) and singular?(request)
raise ArgumentError, "Did not understand HTTP #{http_method(request)} request for '#{path(request)}'"
end
private
def find_model_for_handler(handler)
Puppet::Indirector::Indirection.model(handler) ||
raise(ArgumentError, "Cannot locate indirection [#{handler}].")
end
def get?(request)
http_method(request) == 'GET'
end
def put?(request)
http_method(request) == 'PUT'
end
def delete?(request)
http_method(request) == 'DELETE'
end
def singular?(request)
%r{/#{@handler.to_s}$}.match(path(request))
end
def plural?(request)
%r{/#{@handler.to_s}s$}.match(path(request))
end
# methods specific to a given web server
def register_handler
raise UnimplementedError
end
def http_method(request)
raise UnimplementedError
end
def path(request)
raise UnimplementedError
end
end
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