1
2
3
4
5
6
7
8
9
10
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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
module ActionWebService # :nodoc:
module Container # :nodoc:
module ActionController # :nodoc:
def self.included(base) # :nodoc:
class << base
include ClassMethods
alias_method_chain :inherited, :api
alias_method_chain :web_service_api, :require
end
end
module ClassMethods
# Creates a client for accessing remote web services, using the
# given +protocol+ to communicate with the +endpoint_uri+.
#
# ==== Example
#
# class MyController < ActionController::Base
# web_client_api :blogger, :xmlrpc, "http://blogger.com/myblog/api/RPC2", :handler_name => 'blogger'
# end
#
# In this example, a protected method named <tt>blogger</tt> will
# now exist on the controller, and calling it will return the
# XML-RPC client object for working with that remote service.
#
# +options+ is the set of protocol client specific options (see
# a protocol client class for details).
#
# If your API definition does not exist on the load path with the
# correct rules for it to be found using +name+, you can pass in
# the API definition class via +options+, using a key of <tt>:api</tt>
def web_client_api(name, protocol, endpoint_uri, options={})
unless method_defined?(name)
api_klass = options.delete(:api) || require_web_service_api(name)
class_eval do
define_method(name) do
create_web_service_client(api_klass, protocol, endpoint_uri, options)
end
protected name
end
end
end
def web_service_api_with_require(definition=nil) # :nodoc:
return web_service_api_without_require if definition.nil?
case definition
when String, Symbol
klass = require_web_service_api(definition)
else
klass = definition
end
web_service_api_without_require(klass)
end
def require_web_service_api(name) # :nodoc:
case name
when String, Symbol
file_name = name.to_s.underscore + "_api"
class_name = file_name.camelize
class_names = [class_name, class_name.sub(/Api$/, 'API')]
begin
require_dependency(file_name)
rescue LoadError => load_error
requiree = / -- (.*?)(\.rb)?$/.match(load_error).to_a[1]
msg = requiree == file_name ? "Missing API definition file in apis/#{file_name}.rb" : "Can't load file: #{requiree}"
raise LoadError.new(msg).copy_blame!(load_error)
end
klass = nil
class_names.each do |name|
klass = name.constantize rescue nil
break unless klass.nil?
end
unless klass
raise(NameError, "neither #{class_names[0]} or #{class_names[1]} found")
end
klass
else
raise(ArgumentError, "expected String or Symbol argument")
end
end
private
def inherited_with_api(child)
inherited_without_api(child)
begin child.web_service_api(child.controller_path)
rescue MissingSourceFile => e
raise unless e.is_missing?("apis/#{child.controller_path}_api")
end
end
end
end
end
end
|
