meta-download-agent.py

address_dispatch_table = {}

class MetaDownloadAgent(type):
    def __new__(cls, name, bases, attributes):
        return super(MetaDownloadAgent, cls).__new__(cls, name, bases, attributes)

    def __init__(self, name, bases, attributes):
        super(MetaDownloadAgent, self).__init__(name, bases, attributes)
        if 'address_pattern' in attributes:
            address_dispatch_table[attributes['address_pattern']] = self

class DownloadAgent(object):
    __metaclass__ = MetaDownloadAgent

    def __init__(self):
        self.precedence = 0
        self.desires = set()
        self.intentions = list()
        self.pending_actions = list()
        self.running_actions = set()
        self.alive = True
        self.run = False
        self.stop = False
        self.fail = None
        self.environment = None
        self.program = None
        self.path = None
        self.name = None
        self.goal = None

class DataCodRuDownloadAgent(DownloadAgent):
    address_pattern = r"http://[\w\.\-]*.data.cod.ru/\d+"
    tag = 'data.cod.ru'

    def __init__(self):
        self.address = None
        self.link = None
        self.child = None

    def program(self):
        pass

class Files3DsvDataCodRuDownloadAgent(DownloadAgent):
    address_pattern = r"http://files3?.dsv.*.data.cod.ru/.+"
    tag = 'files3?.dsv.*.data.cod.ru'
    max_active_agents = 1
    
    def __init__(self):
        self.address = None
        self.name = None
        self.filename = None
        self.path = None
        self.total_file_length = None
        self.actual_file_length = None

    def program(self):
        pass

class Files2DsvDataCodRuDownloadAgent(DownloadAgent):
    address_pattern = r"http://files2.dsv.*.data.cod.ru/.+"
    tag = 'files2.dsv.*.data.cod.ru'
    max_active_agents = 1
    
    def __init__(self):
        self.address = None
        self.name = None
        self.filename = None
        self.path = None
        self.total_file_length = None
        self.actual_file_length = None

    def program(self):
        pass