Module: RestCore::Client

Includes:
RestCore
Defined in:
lib/rest-core/client.rb

Constant Summary collapse

Unserializable = 
[Proc, Method, IO]

Constants included from RestCore

ASYNC, CLIENT, DRY, FAIL, HIJACK, LOG, PROMISE, REQUEST_HEADERS, REQUEST_METHOD, REQUEST_PATH, REQUEST_PAYLOAD, REQUEST_QUERY, REQUEST_URI, RESPONSE_BODY, RESPONSE_HEADERS, RESPONSE_KEY, RESPONSE_SOCKET, RESPONSE_STATUS, Simple, TIMER, Universal, VERSION

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from RestCore

eagerload, id

Instance Attribute Details

#app ⇒ Object (readonly)

Returns the value of attribute app.



43
44
45
 
# File 'lib/rest-core/client.rb', line 43

def app
  @app
end

#dry ⇒ Object (readonly)

Returns the value of attribute dry.



43
44
45
 
# File 'lib/rest-core/client.rb', line 43

def dry
  @dry
end

#error_callback ⇒ Object

Returns the value of attribute error_callback.



44
45
46
 
# File 'lib/rest-core/client.rb', line 44

def error_callback
  @error_callback
end

#promises ⇒ Object (readonly)

Returns the value of attribute promises.



43
44
45
 
# File 'lib/rest-core/client.rb', line 43

def promises
  @promises
end

Class Method Details

.included(mod) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/rest-core/client.rb', line 11

def self.included mod
  # honor default attributes
  src = mod.members.map{ |name|
    "      def \#{name}\n        if (r = super).nil?\n          self.\#{name} = default_\#{name}\n        else\n          r\n        end\n      end\n\n      def default_\#{name} a=app\n        if self.class.respond_to?(\"default_\#{name}\")\n          self.class.default_\#{name}      # old class default style\n        elsif a.respond_to?(:\#{name})\n          a.\#{name}({})                 # middleware instance value\n        elsif a.respond_to?(:app)\n          default_\#{name}(a.app)        # walk into next app\n        else\n          nil\n        end\n      end\n      private :default_\#{name}\n    RUBY\n  }\n  accessor = Module.new\n  accessor.module_eval(src.join(\"\\n\"), __FILE__, __LINE__)\n  mod.const_set('Accessor', accessor)\n  mod.send(:include, accessor)\nend\n"

Instance Method Details

#attributes ⇒ Object 



55
56
57
 
# File 'lib/rest-core/client.rb', line 55

def attributes
  Hash[each_pair.map{ |k, v| [k, send(k)] }]
end

#build_env(env = {}) ⇒ Object 



192
193
194
195
 
# File 'lib/rest-core/client.rb', line 192

def build_env env={}
  default_env.merge(
    Middleware.string_keys(attributes).merge(Middleware.string_keys(env)))
end

#default_env ⇒ Object 



197
198
199
200
201
202
203
204
205
206
 
# File 'lib/rest-core/client.rb', line 197

def default_env
  {REQUEST_METHOD  => :get,
   REQUEST_PATH    => '/' ,
   REQUEST_QUERY   => {}  ,
   REQUEST_PAYLOAD => {}  ,
   REQUEST_HEADERS => {}  ,
   FAIL            => []  ,
   LOG             => []  ,
   CLIENT          => self}
end

#delete(path, query = {}, opts = {}, &cb) ⇒ Object 



106
107
108
109
110
111
 
# File 'lib/rest-core/client.rb', line 106

def delete path, query={}, opts={}, &cb
  request(
    {REQUEST_METHOD  => :delete,
     REQUEST_PATH    => path   ,
     REQUEST_QUERY   => query  }.merge(opts), &cb)
end

#event_source(path, query = {}, opts = {}) ⇒ Object 



153
154
155
 
# File 'lib/rest-core/client.rb', line 153

def event_source path, query={}, opts={}
  self.class.event_source_class.new(self, path, query, opts)
end

#get(path, query = {}, opts = {}, &cb) ⇒ Object 



99
100
101
102
103
104
 
# File 'lib/rest-core/client.rb', line 99

def get    path, query={}, opts={}, &cb
  request(
    {REQUEST_METHOD  => :get   ,
     REQUEST_PATH    => path   ,
     REQUEST_QUERY   => query  }.merge(opts), &cb)
end

#give_promise(response) ⇒ Object 



179
180
181
182
183
184
185
186
187
188
189
190
 
# File 'lib/rest-core/client.rb', line 179

def give_promise response
  # under ASYNC callback, response might not be a response hash
  # in that case (maybe in a user created engine), Client#wait
  # won't work because we have no way to track the promise.
  if response.kind_of?(Hash) && response[PROMISE].kind_of?(Promise)
    weak_promise = WeakRef.new(response[PROMISE])
    self.class.give_promise(weak_promise)
    self.class.give_promise(weak_promise, promises, mutex)
  end

  response
end

#head(path, query = {}, opts = {}, &cb) ⇒ Object 



113
114
115
116
117
118
119
 
# File 'lib/rest-core/client.rb', line 113

def head path, query={}, opts={}, &cb
  request(
    {REQUEST_METHOD  => :head  ,
     REQUEST_PATH    => path   ,
     REQUEST_QUERY   => query  ,
     RESPONSE_KEY    => RESPONSE_HEADERS}.merge(opts), &cb)
end

#initialize(o = {}) ⇒ Object 



45
46
47
48
49
50
51
52
53
 
# File 'lib/rest-core/client.rb', line 45

def initialize o={}
  @app ||= self.class.builder.to_app # lighten! would reinitialize anyway
  @dry ||= self.class.builder.to_app(Dry)
  @promises = []  # don't record any promises in lighten!
  @mutex    = nil # for locking promises, lazily initialized
                  # for serialization
  @error_callback = nil
  o.each{ |key, value| send("#{key}=", value) if respond_to?("#{key}=") }
end

#inspect ⇒ Object 



59
60
61
62
63
64
65
66
67
68
 
# File 'lib/rest-core/client.rb', line 59

def inspect
  fields = if size > 0
             ' ' + attributes.map{ |k, v|
               "#{k}=#{v.inspect.sub(/(?<=.{12}).{4,}/, '...')}"
             }.join(', ')
           else
             ''
           end
  "#<struct #{self.class.name}#{fields}>"
end

#lighten(o = {}) ⇒ Object 



83
84
85
 
# File 'lib/rest-core/client.rb', line 83

def lighten o={}
  dup.lighten!(o)
end

#lighten!(o = {}) ⇒ Object 



70
71
72
73
74
75
76
77
78
79
80
81
 
# File 'lib/rest-core/client.rb', line 70

def lighten! o={}
  attributes.each{ |k, v| vv = case v;
                                 when  Hash; lighten_hash(v)
                                 when Array; lighten_array(v)
                                 when *Unserializable; nil
                                 else v
                               end
                          send("#{k}=", vv)}
  initialize(o)
  @app, @dry = lighten_app(app), lighten_app(dry)
  self
end

#options(path, query = {}, opts = {}, &cb) ⇒ Object 



121
122
123
124
125
126
127
 
# File 'lib/rest-core/client.rb', line 121

def options path, query={}, opts={}, &cb
  request(
    {REQUEST_METHOD  => :options,
     REQUEST_PATH    => path   ,
     REQUEST_QUERY   => query  ,
     RESPONSE_KEY    => RESPONSE_HEADERS}.merge(opts), &cb)
end

#patch(path, payload = {}, query = {}, opts = {}, &cb) ⇒ Object 



145
146
147
148
149
150
151
 
# File 'lib/rest-core/client.rb', line 145

def patch  path, payload={}, query={}, opts={}, &cb
  request(
    {REQUEST_METHOD  => :patch ,
     REQUEST_PATH    => path   ,
     REQUEST_QUERY   => query  ,
     REQUEST_PAYLOAD => payload}.merge(opts), &cb)
end

#post(path, payload = {}, query = {}, opts = {}, &cb) ⇒ Object 



129
130
131
132
133
134
135
 
# File 'lib/rest-core/client.rb', line 129

def post   path, payload={}, query={}, opts={}, &cb
  request(
    {REQUEST_METHOD  => :post  ,
     REQUEST_PATH    => path   ,
     REQUEST_QUERY   => query  ,
     REQUEST_PAYLOAD => payload}.merge(opts), &cb)
end

#put(path, payload = {}, query = {}, opts = {}, &cb) ⇒ Object 



137
138
139
140
141
142
143
 
# File 'lib/rest-core/client.rb', line 137

def put    path, payload={}, query={}, opts={}, &cb
  request(
    {REQUEST_METHOD  => :put   ,
     REQUEST_PATH    => path   ,
     REQUEST_QUERY   => query  ,
     REQUEST_PAYLOAD => payload}.merge(opts), &cb)
end

#request(env, a = app) ⇒ Object 



157
158
159
160
161
162
163
 
# File 'lib/rest-core/client.rb', line 157

def request env, a=app
  if block_given?
    request_full(env, a){ |response| yield(response[response_key(env)]) }
  else
    request_full(env, a)[response_key(env)]
  end
end

#request_full(env, a = app, &k) ⇒ Object 



165
166
167
168
169
170
171
172
173
174
175
176
177
 
# File 'lib/rest-core/client.rb', line 165

def request_full env, a=app, &k
  response = a.call(build_env({ASYNC => !!k}.merge(env))) do |res|
    (k || RC.id).call(request_complete(res))
  end

  give_promise(response)

  if block_given?
    self
  else
    response
  end
end

#url(path, query = {}, opts = {}) ⇒ Object 



92
93
94
95
96
97
 
# File 'lib/rest-core/client.rb', line 92

def url path, query={}, opts={}
  dry.call(build_env({
    REQUEST_PATH  => path,
    REQUEST_QUERY => query,
    DRY           => true}.merge(opts)), &Middleware.method(:request_uri))
end

#wait ⇒ Object 



87
88
89
90
 
# File 'lib/rest-core/client.rb', line 87

def wait
  self.class.wait(promises, mutex)
  self
end