# File lib/ohai/system.rb, line 217
217:     def self.json_create(o)
218:       ohai = new
219:       o.each do |key, value|
220:         ohai.data[key] = value unless key == "json_class"
221:       end
222:       ohai
223:     end

    # File lib/ohai/system.rb, line 43
43:     def initialize
44:       @data = Mash.new
45:       @seen_plugins = Hash.new
46:       @providers = Mash.new
47:       @plugin_path = ""
48:       Ohai::Log.level(Ohai::Config.log_level) 
49:     end

    # File lib/ohai/system.rb, line 51
51:     def [](key)
52:       @data[key]
53:     end

    # File lib/ohai/system.rb, line 55
55:     def []=(key, value)
56:       @data[key] = value
57:     end

     # File lib/ohai/system.rb, line 115
115:     def all_plugins
116:       require_plugin('os')
117:       
118:       Ohai::Config[:plugin_path].each do |path|
119:         [ 
120:           Dir[File.join(path, '*')], 
121:           Dir[File.join(path, @data[:os], '**', '*')] 
122:         ].flatten.each do |file|
123:           file_regex = Regexp.new("#{path}#{File::SEPARATOR}(.+).rb$")
124:           md = file_regex.match(file)
125:           if md
126:             plugin_name = md[1].gsub(File::SEPARATOR, "::")
127:             require_plugin(plugin_name) unless @seen_plugins.has_key?(plugin_name)
128:           end
129:         end
130:       end
131:     end

    # File lib/ohai/system.rb, line 65
65:     def attribute?(name)
66:       @data.has_key?(name) 
67:     end

     # File lib/ohai/system.rb, line 213
213:     def attributes_print(a)
214:       JSON.pretty_generate(@data[a])
215:     end

     # File lib/ohai/system.rb, line 133
133:     def collect_providers(providers)
134:       refreshments = []
135:       if providers.is_a?(Mash)
136:         providers.keys.each do |provider|
137:           if provider.eql?("_providers")
138:             refreshments << providers[provider]
139:           else
140:             refreshments << collect_providers(providers[provider])
141:           end
142:         end
143:       else
144:         refreshments << providers
145:       end
146:       refreshments.flatten.uniq
147:     end

    # File lib/ohai/system.rb, line 59
59:     def each(&block)
60:       @data.each do |key, value|
61:         block.call(key, value)
62:       end
63:     end

    # File lib/ohai/system.rb, line 73
73:     def from(cmd)
74:       status, stdout, stderr = run_command(:command => cmd)
75:       return "" if stdout.nil?
76:       stdout.chomp!.strip
77:     end

     # File lib/ohai/system.rb, line 96
 96:     def from_with_regex(cmd, *regex_list)
 97:       regex_list.flatten.each do |regex|
 98:         status, stdout, stderr = run_command(:command => cmd)
 99:         return "" if stdout.nil?
100:         stdout.chomp!.strip
101:         md = stdout.match(regex)
102:         return md[1]
103:       end
104:     end

     # File lib/ohai/system.rb, line 111
111:     def get_attribute(name)
112:       @data[name]
113:     end

     # File lib/ohai/system.rb, line 209
209:     def json_pretty_print
210:       JSON.pretty_generate(@data)
211:     end

     # File lib/ohai/system.rb, line 225
225:     def method_missing(name, *args)
226:       return get_attribute(name) if args.length == 0 
227:       
228:       set_attribute(name, *args)
229:     end

    # File lib/ohai/system.rb, line 79
79:     def provides(*paths)
80:       paths.each do |path|
81:         parts = path.split('/')
82:         h = @providers
83:         unless parts.length == 0
84:           parts.shift if parts[0].length == 0
85:           parts.each do |part|
86:             h[part] ||= Mash.new
87:             h = h[part]
88:           end
89:         end
90:         h[:_providers] ||= []
91:         h[:_providers] << @plugin_path
92:       end
93:     end

     # File lib/ohai/system.rb, line 149
149:     def refresh_plugins(path = '/')
150:       parts = path.split('/')
151:       if parts.length == 0
152:         h = @providers
153:       else
154:         parts.shift if parts[0].length == 0
155:         h = @providers
156:         parts.each do |part|
157:           break unless h.has_key?(part)
158:           h = h[part]
159:         end
160:       end
161: 
162:       refreshments = collect_providers(h)
163:       Ohai::Log.debug("Refreshing plugins: #{refreshments.join(", ")}")
164:       
165:       refreshments.each do |r|
166:         @seen_plugins.delete(r) if @seen_plugins.has_key?(r)
167:       end
168:       refreshments.each do |r|
169:         require_plugin(r) unless @seen_plugins.has_key?(r)        
170:       end
171:     end

     # File lib/ohai/system.rb, line 173
173:     def require_plugin(plugin_name, force=false)
174:       unless force
175:         return true if @seen_plugins[plugin_name]
176:       end
177:       
178:       @plugin_path = plugin_name
179:       
180:       filename = "#{plugin_name.gsub("::", File::SEPARATOR)}.rb"
181:             
182:       Ohai::Config[:plugin_path].each do |path|
183:         check_path = File.expand_path(File.join(path, filename))
184:         begin
185:           @seen_plugins[plugin_name] = true
186:           Ohai::Log.debug("Loading plugin #{plugin_name}")
187:           from_file(check_path)
188:           return true
189:         rescue IOError => e
190:           Ohai::Log.debug("No #{plugin_name} at #{check_path}")
191:         rescue Exception,Errno::ENOENT => e
192:           Ohai::Log.debug("Plugin #{plugin_name} threw exception #{e.inspect}")
193:         end
194:       end
195:     end

    # File lib/ohai/system.rb, line 69
69:     def set(name, *value)
70:       set_attribute(name, *value)
71:     end

     # File lib/ohai/system.rb, line 106
106:     def set_attribute(name, *value)
107:       @data[name] = *value
108:       @data[name]
109:     end

     # File lib/ohai/system.rb, line 202
202:     def to_json(*a)
203:       output = @data.clone
204:       output["json_class"] = self.class.name
205:       output.to_json(*a)
206:     end

     # File lib/ohai/system.rb, line 232
232:       def load_plugin_file
233:         
234:       end