def insertWebsite(self, url, domain):
		'''增加一个网页,标记为未访问,并对相应的domain增加其入度'''
		cur = self.conn.cursor()
		cur.execute("SELECT 1 FROM Domains WHERE domain=?", (domain,))
		result = cur.fetchone()
		if not result:
			# 未有对应domain记录, 先创建domain, 把入度设为1
			if VERBOSE:
				print 'Spot Domain:',domain
			self.insertDomain(domain, indegree=1)
			cur.execute("SELECT did FROM Domains WHERE domain=?", (domain,))
			did = cur.fetchone()[0]
		else:
			did = result[0]
			# 对应的domain记录已经存在, 对其入度+1
			cur.execute("UPDATE Domains SET outdegree=outdegree+1 WHERE domain=?", (domain,))

		cur.execute("INSERT INTO Websites VALUES (NULL,?,?,NULL,0)", (did, url,))
		# 写入到文件
		self.conn.commit()
def __init__(self, orchestrator):
        """
        :param orchestrator: Orchestrator instance.
        :type orchestrator: Orchestrator
        """

        # Keep a reference to the Orchestrator.
        self.__orchestrator = orchestrator

        # Keep a reference to the global RPC map (it's faster this way).
        self.__rpcMap = rpcMap

        # Check all RPC messages have been mapped at this point.
        missing = MSG_RPC_CODES.difference(self.__rpcMap.keys())
        if missing:
            msg  = "Missing RPC implementors for codes: %s"
            msg %= ", ".join(str(x) for x in sorted(missing))
            raise SyntaxError(msg)