class Tennpipes::PathRouter::Compiler
High performance engine for finding all routes which are matched with pattern
Attributes
regexps[R]
All regexps generated by recursive compiler
Public Class Methods
new(routes)
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Constructs an instance of Tennpipes::PathRouter::Compiler
# File lib/tennpipes-base/path_router/compiler.rb, line 13 def initialize(routes) @routes = routes end
Public Instance Methods
call_by_request(request) { |route, params| ... }
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Calls routes by using request.
# File lib/tennpipes-base/path_router/compiler.rb, line 50 def call_by_request(request) rotation do |offset| pattern = encode_default_external(request.path_info) if route = match?(offset, pattern) params = route.params_for(pattern, request.params) yield(route, params) if route.verb == request.request_method route end end end
compile!()
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Compiles all routes into regexps.
# File lib/tennpipes-base/path_router/compiler.rb, line 20 def compile! return if compiled? @regexps = @routes.map.with_index do |route, index| route.index = index /(?<_#{index}>#{route.matcher.to_regexp})/ end @regexps = recursive_compile(@regexps) @compiled = true end
compiled?()
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Returns true if all routes has been compiled.
# File lib/tennpipes-base/path_router/compiler.rb, line 33 def compiled? !!@compiled end
find_by(request_or_env)
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Finds routes by using request or env.
# File lib/tennpipes-base/path_router/compiler.rb, line 40 def find_by(request_or_env) request = request_or_env.is_a?(Hash) ? Sinatra::Request.new(request_or_env) : request_or_env pattern = encode_default_external(request.path_info) verb = request.request_method rotation { |offset| match?(offset, pattern) }.select { |route| route.verb == verb } end
find_by_pattern(pattern)
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Finds routes by using PATH_INFO.
# File lib/tennpipes-base/path_router/compiler.rb, line 64 def find_by_pattern(pattern) pattern = pattern.encode(Encoding.default_external) rotation { |offset| match?(offset, pattern) } end
Private Instance Methods
encode_default_external(string)
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Encode string with Encoding.default_external
# File lib/tennpipes-base/path_router/compiler.rb, line 105 def encode_default_external(string) string.encode(Encoding.default_external) end
match?(offset, path)
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Returns a instance of PathRouter::Route
if path is matched with current regexp
# File lib/tennpipes-base/path_router/compiler.rb, line 74 def match?(offset, path) current_regexp = @regexps[offset] return unless current_regexp === path || current_regexp === path[0..-2] @routes[offset..-1].detect{ |route| Regexp.last_match["_#{route.index}"] } end
recursive_compile(regexps, paths = [])
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Compiles routes into regexp recursively.
# File lib/tennpipes-base/path_router/compiler.rb, line 95 def recursive_compile(regexps, paths = []) return paths if regexps.length.zero? paths << Regexp.union(regexps) regexps.shift recursive_compile(regexps, paths) end
rotation(offset = 0) { |offset| ... }
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Runs through all regexps to find routes.
# File lib/tennpipes-base/path_router/compiler.rb, line 83 def rotation(offset = 0) compile! unless compiled? loop.with_object([]) do |_, candidacies| return candidacies unless route = yield(offset) candidacies << route offset = route.index.next end end