Class: AutomateEm::Modules

Inherits:
Object
  • Object
show all
Defined in:
lib/automate-em/core/modules.rb

Constant Summary collapse

@@modules =

modules (dependency_id => module class)

{}
@@load_lock = 
Mutex.new

Class Method Summary collapse

Class Method Details

.[](dep_id) ⇒ Object 



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# File 'lib/automate-em/core/modules.rb', line 6

def self.[] (dep_id)
	@@load_lock.synchronize {
		@@modules[dep_id]
	}
end

.lazy_load(dep) ⇒ Object 



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# File 'lib/automate-em/core/modules.rb', line 12

def self.lazy_load(dep)
	theClass = Modules[dep.id]
	theClass = Modules.load_module(dep) if theClass.nil?
	theClass
end

.load_module(dep) ⇒ Object 



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# File 'lib/automate-em/core/modules.rb', line 18

def self.load_module(dep)
	begin
		found = false
		file = "#{dep.classname.underscore}.rb"
		
		Rails.configuration.automate.module_paths.each do |path|
			if File.exists?("#{path}/#{file}")
				@@load_lock.synchronize {
					load "#{path}/#{file}"
				}
				found = true
				break
			end
		end
		
		if not found
			raise "File not found! (#{file})"
		end
		
		@@load_lock.synchronize {
			@@modules[dep.id] = dep.classname.constantize	# this is the return value
		}
	rescue Exception => e
		AutomateEm.print_error(System.logger, e, {
			:message => "device module #{dep.actual_name} error whilst loading.",
			:level => Logger::ERROR
		})
		
		return false
	end
end