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* remove usage of `@env`Aaron Patterson2015-08-231-3/+5
| | | | | try to remove dependencies on `@env` so we can have more flexible internals
* Another place to use a request object in NullSessionHash Ronak Jangir2015-08-231-3/+3
| | | | May be missed in 5fe141638f1243ac6ae187ae14aa398b4c1875a2 commit Also fixes the broken build
* use a request object in the session middlewareAaron Patterson2015-08-227-68/+74
| | | | | This commit allows us to use one request object rather than allocating multiple request objects to deal with the session.
* move more `@env` access to method callsAaron Patterson2015-08-221-16/+16
| | | | | We're going to implement storing env values differently in the future, so let's disconnect these methods from the instance variables
* move ORIGINAL_SCRIPT_NAME to the metaprogrammed methodsAaron Patterson2015-08-221-4/+1
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* metaprogram the HTTP_X_REQUEST_ID methodAaron Patterson2015-08-221-6/+1
| | | | we're already doing this with a bunch of other header data.
* use `body_stream` instead of getting the env value ourselvesAaron Patterson2015-08-221-1/+1
| | | | we have a method that knows how to get rack.input, so lets use that.
* convert `@env` use to get / set headerAaron Patterson2015-08-221-16/+16
| | | | | | We need to abstract the internals of the request object away from this instance variable so that the values for `@env` can be calculated in a different way.
* use get / set header to avoid depending on the `env` ivarAaron Patterson2015-08-221-11/+14
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* Fix Railties test failure for asset routeseileencodes2015-08-221-1/+5
| | | | | | | | | Since none of the action pack tests failed without this conditional it didn't seem necessary. This fixes the build because it correctly returns a 404 instead of a 500 for the asset routes test. Test that was failing was in the `assets_test.rb` file and was the test named `test_assets_routes_are_not_drawn_when_compilation_is_disabled`.
* Refactor to remove controller class from route to requesteileencodes2015-08-223-41/+21
| | | | | | | | | | This refactoring moves the controller class name that was on the route set to the request. The purpose of this refactoring is for changes we need to move controller tests to integration tests, mainly being able to access the controller on the request instead of having to go through the router. [Eileen M. Uchitelle & Aaron Patterson]
* set cached values in the env hashAaron Patterson2015-08-211-6/+9
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* stop directly accessing `@env` in mime_negotiationAaron Patterson2015-08-211-8/+8
| | | | | we want to go through methods to access `env` because in the future that ivar may not be available, or may be calculated lazily
* use public API to fetch the parameter filterAaron Patterson2015-08-211-2/+2
| | | | | now the parameter filter doesn't need to know about the env hash in these two methds.
* use methods on the request object to implement `fetch`Aaron Patterson2015-08-211-2/+8
| | | | Now the Headers internals don't depend on the env hash.
* dup the env hash on Header#envAaron Patterson2015-08-211-1/+1
| | | | | This prevents external mutations from impacting the internals of the request or the Header object.
* use accessors on the request object for manipulating envAaron Patterson2015-08-211-3/+3
| | | | | this reduces the API footprint for the env hash so that we can be more flexible when changing API in the future
* use `set_header` rather than []=Aaron Patterson2015-08-211-1/+1
| | | | This allows us to avoid calling `env_name` twice.
* dup the request and mutate its headers object.Aaron Patterson2015-08-211-2/+2
| | | | duping the request will dup it's underlying env hash.
* Remove unnecessary cachingeileencodes2015-08-211-5/+1
| | | | | | | `ActiveSupport::Dependencies.constantize(const_name)` calls `Reference.new` which is defined as `ActiveSupport::Dependencies.constantize(const_name)` meaning this call is already cached and we're doing caching that isn't necessary.
* pass a request object to the headers objectAaron Patterson2015-08-214-13/+19
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* move header allocation to a helper methodAaron Patterson2015-08-211-5/+9
| | | | | I'm going to change the constructor, so it's easier to do it in one place.
* Merge pull request #21106 from amitsuroliya/fix_routing_testAndrew White2015-08-211-6/+0
|\ | | | | Remove duplicity in tests
| * Remove duplicity in testsamitkumarsuroliya2015-08-031-6/+0
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* | set route precedence at allocation timeAaron Patterson2015-08-202-8/+6
| | | | | | | | This way we can make the Route object a read-only data structure.
* | point at rack masterAaron Patterson2015-08-203-4/+4
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* | make the routes reader privateAaron Patterson2015-08-182-1/+2
| | | | | | | | | | nobody should be touching the routes hash without going through the NamedRouteCollection object.
* | don't touch internalsAaron Patterson2015-08-181-1/+1
| | | | | | | | | | We shouldn't be messing with the NamedRouteCollection internals. Just ask the object if the named route is in there.
* | drop array allocations when building pathsAaron Patterson2015-08-182-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ```ruby require 'action_pack' require 'action_dispatch' require 'benchmark/ips' route_set = ActionDispatch::Routing::RouteSet.new routes = ActionDispatch::Routing::Mapper.new route_set ObjectSpace::AllocationTracer.setup(%i{path line type}) result = ObjectSpace::AllocationTracer.trace do 500.times do routes.resources :foo end end sorted = ObjectSpace::AllocationTracer.allocated_count_table.sort_by(&:last) sorted.each do |k,v| next if v == 0 p k => v end __END__ Before: {:T_SYMBOL=>11} {:T_REGEXP=>17} {:T_STRUCT=>6500} {:T_MATCH=>12004} {:T_OBJECT=>99009} {:T_DATA=>100088} {:T_HASH=>122015} {:T_STRING=>159637} {:T_IMEMO=>363134} {:T_ARRAY=>433056} After: {:T_SYMBOL=>11} {:T_REGEXP=>17} {:T_STRUCT=>6500} {:T_MATCH=>12004} {:T_OBJECT=>91009} {:T_DATA=>100088} {:T_HASH=>114013} {:T_STRING=>159637} {:T_ARRAY=>321056} {:T_IMEMO=>351133} ```
* | symbols will always be constructed with strings. :bomb:Aaron Patterson2015-08-181-1/+1
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* | drop string allocations for each resourceAaron Patterson2015-08-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eagerly calculate and cache the name of Symbol objects in the path AST. This drops about 26 string allocations per resource: ```ruby require 'action_pack' require 'action_dispatch' require 'benchmark/ips' route_set = ActionDispatch::Routing::RouteSet.new routes = ActionDispatch::Routing::Mapper.new route_set ObjectSpace::AllocationTracer.setup(%i{path line type}) result = ObjectSpace::AllocationTracer.trace do 500.times do routes.resources :foo end end sorted = ObjectSpace::AllocationTracer.allocated_count_table.sort_by(&:last) sorted.each do |k,v| next if v == 0 p k => v end __END__ Before: {:T_SYMBOL=>11} {:T_REGEXP=>17} {:T_STRUCT=>6500} {:T_MATCH=>12004} {:T_OBJECT=>99009} {:T_DATA=>116084} {:T_HASH=>122015} {:T_STRING=>172647} {:T_IMEMO=>371132} {:T_ARRAY=>433056} After: {:T_SYMBOL=>11} {:T_REGEXP=>17} {:T_STRUCT=>6500} {:T_MATCH=>12004} {:T_OBJECT=>99009} {:T_DATA=>100088} {:T_HASH=>122015} {:T_STRING=>159637} {:T_IMEMO=>363134} {:T_ARRAY=>433056} ```
* | Remove unreached default valueRafael Mendonça França2015-08-171-1/+1
| | | | | | | | verb_matcher never returns nil.
* | use the strategy pattern to match request verbsAaron Patterson2015-08-172-16/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than building a regexp for every route, lets use the strategy pattern to select among objects that can match HTTP verbs. This commit introduces strategy objects for each verb that has a predicate method on the request object like `get?`, `post?`, etc. When we build the route object, look up the strategy for the verbs the user specified. If we can't find it, fall back on string matching. Using a strategy / null object pattern (the `All` VerbMatcher is our "null" object in this case) we can: 1) Remove conditionals 2) Drop boot time allocations 2) Drop run time allocations 3) Improve runtime performance Here is our boot time allocation benchmark: ```ruby require 'action_pack' require 'action_dispatch' route_set = ActionDispatch::Routing::RouteSet.new routes = ActionDispatch::Routing::Mapper.new route_set result = ObjectSpace::AllocationTracer.trace do 500.times do routes.resources :foo end end sorted = ObjectSpace::AllocationTracer.allocated_count_table.sort_by(&:last) sorted.each do |k,v| next if v == 0 p k => v end __END__ Before: $ be ruby -rallocation_tracer route_test.rb {:T_SYMBOL=>11} {:T_REGEXP=>4017} {:T_STRUCT=>6500} {:T_MATCH=>12004} {:T_DATA=>84092} {:T_OBJECT=>99009} {:T_HASH=>122015} {:T_STRING=>216652} {:T_IMEMO=>355137} {:T_ARRAY=>441057} After: $ be ruby -rallocation_tracer route_test.rb {:T_SYMBOL=>11} {:T_REGEXP=>17} {:T_STRUCT=>6500} {:T_MATCH=>12004} {:T_DATA=>84092} {:T_OBJECT=>99009} {:T_HASH=>122015} {:T_STRING=>172647} {:T_IMEMO=>355136} {:T_ARRAY=>433056} ``` This benchmark adds 500 resources. Each resource has 8 routes, so it adds 4000 routes. You can see from the results that this patch eliminates 4000 Regexp allocations, ~44000 String allocations, and ~8000 Array allocations. With that, we can figure out that the previous code would allocate 1 regexp, 11 strings, and 2 arrays per route *more* than this patch in order to handle verb matching. Next lets look at runtime allocations: ```ruby require 'action_pack' require 'action_dispatch' require 'benchmark/ips' route_set = ActionDispatch::Routing::RouteSet.new routes = ActionDispatch::Routing::Mapper.new route_set routes.resources :foo route = route_set.routes.first request = ActionDispatch::Request.new("REQUEST_METHOD" => "GET") result = ObjectSpace::AllocationTracer.trace do 500.times do route.matches? request end end sorted = ObjectSpace::AllocationTracer.allocated_count_table.sort_by(&:last) sorted.each do |k,v| next if v == 0 p k => v end __END__ Before: $ be ruby -rallocation_tracer route_test.rb {:T_MATCH=>500} {:T_STRING=>501} {:T_IMEMO=>1501} After: $ be ruby -rallocation_tracer route_test.rb {:T_IMEMO=>1001} ``` This benchmark runs 500 calls against the `matches?` method on the route object. We check this method in the case that there are two methods that match the same path, but they are differentiated by the verb (or other conditionals). For example `POST /users` vs `GET /users`, same path, different action. Previously, we were using regexps to match against the verb. You can see that doing the regexp match would allocate 1 match object and 1 string object each time it was called. This patch eliminates those allocations. Next lets look at runtime performance. ```ruby require 'action_pack' require 'action_dispatch' require 'benchmark/ips' route_set = ActionDispatch::Routing::RouteSet.new routes = ActionDispatch::Routing::Mapper.new route_set routes.resources :foo route = route_set.routes.first match = ActionDispatch::Request.new("REQUEST_METHOD" => "GET") no_match = ActionDispatch::Request.new("REQUEST_METHOD" => "POST") Benchmark.ips do |x| x.report("match") do route.matches? match end x.report("no match") do route.matches? no_match end end __END__ Before: $ be ruby -rallocation_tracer runtime.rb Calculating ------------------------------------- match 17.145k i/100ms no match 24.244k i/100ms ------------------------------------------------- match 259.708k (± 4.3%) i/s - 1.303M no match 453.376k (± 5.9%) i/s - 2.279M After: $ be ruby -rallocation_tracer runtime.rb Calculating ------------------------------------- match 23.958k i/100ms no match 29.402k i/100ms ------------------------------------------------- match 465.063k (± 3.8%) i/s - 2.324M no match 691.956k (± 4.5%) i/s - 3.469M ``` This tests tries to see how many times it can match a request per second. Switching to method calls and string comparison makes the successful match case about 79% faster, and the unsuccessful case about 52% faster. That was fun!
* | switch Route constructors and pass in the regexpAaron Patterson2015-08-171-9/+15
| | | | | | | | | | We don't need to add and delete from the conditions hash anymore, just pass the regexp directly to the constructor.
* | split the verb regex from the constraints hashAaron Patterson2015-08-171-6/+17
| | | | | | | | | | | | verb matching is very common (all routes besides rack app endpoints require one). We will extract verb matching for now, and use a more efficient method of matching (then regexp) later
* | test the verb method on the route, specificallyAaron Patterson2015-08-171-1/+1
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* | routes are always constructed with a hash for the conditionsAaron Patterson2015-08-173-4/+4
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* | introduce an alternate constructor for Route objectsAaron Patterson2015-08-173-13/+17
| | | | | | | | | | I want to change the real constructor to take a particular parameter for matching the request method
* | drop object allocation during routes setupAaron Patterson2015-08-172-44/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit introduces a functional Path AST visitor and implements `each` on the AST in terms of the functional visitor. The functional visitor doesn't maintain state, so we only need to allocate one of them. Given this benchmark route file: ```ruby require 'action_pack' require 'action_dispatch' route_set = ActionDispatch::Routing::RouteSet.new routes = ActionDispatch::Routing::Mapper.new route_set ObjectSpace::AllocationTracer.setup(%i{path line type}) result = ObjectSpace::AllocationTracer.trace do 500.times{|i| routes.resource :omglol } end result.find_all { |k,v| k.first =~ /git\/rails/ }.sort_by { |k,v| v.first }.each { |k,v| p k => v } ``` node.rb line 17 was in our top 3 allocation spot: ``` {["/Users/aaron/git/rails/actionpack/lib/action_dispatch/journey/nodes/node.rb", 17, :T_OBJECT]=>[31526, 0, 28329, 0, 2, 1123160]} {["/Users/aaron/git/rails/actionpack/lib/action_dispatch/routing/mapper.rb", 2080, :T_IMEMO]=>[34002, 0, 30563, 0, 2, 1211480]} {["/Users/aaron/git/rails/actionpack/lib/action_dispatch/routing/mapper.rb", 2071, :T_IMEMO]=>[121934, 1, 109608, 0, 7, 4344400]} ``` This commit eliminates allocations at that place.
* | avoid is_a? checksAaron Patterson2015-08-172-2/+4
| | | | | | | | add another predicate method so we can avoid is_a checks
* | pull RegexpOffsets in to a methodAaron Patterson2015-08-171-27/+14
| | | | | | | | we don't really need this visitor
* | `required_defaults` is always passed in, remove conditionalAaron Patterson2015-08-171-1/+1
| | | | | | | | | | Routes are always constructed with a list of required_defaults, so there's no need to check whether or not it's nil
* | Fix master buildMarcin Olichwirowicz2015-08-171-0/+1
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* | use predicate methods to avoid is_a? checksAaron Patterson2015-08-172-1/+3
| | | | | | | | | | we may want to change the name of the class at some point, so it's better to use a predicate
* | default pattern to use a joined stringAaron Patterson2015-08-174-16/+20
| | | | | | | | | | The string we create is almost always the same, so rather than joining all the time, lets join once, then reuse that string everywhere.
* | Merge pull request #21252 from rodzyn/improve_params_parserRafael Mendonça França2015-08-171-2/+11
|\ \ | | | | | | Improve params parser
| * | Cleanup ActionDispatch:ParamsParserMarcin Olichwirowicz2015-08-171-2/+11
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* | | [skip ci] Fix minor typoJon Atack2015-08-171-1/+1
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* | | move route allocation to a factory method on the mapping objectAaron Patterson2015-08-152-8/+13
| | | | | | | | | | | | | | | | | | I would like to change the signature of the Route constructor. Since the mapping object has all the data required to construct a Route object, move the allocation to a factory method.
* | | use the mapper to build the routing tableAaron Patterson2015-08-152-231/+103
| | | | | | | | | | | | | | | | | | We should build the routes using the user facing API which is `Mapper`. This frees up the library internals to change as we see fit. IOW we shouldn't be testing internals.
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