def get_title_metadata(self, title_id):
        fname = self.return_filename(title_id)
        xml = ''
        if os.path.exists(fname):
            #print('exist ' + fname)
            f = open(fname, 'r')
            xml = f.read()
            f.close()

        if not xml:
            xml = self.bhl_api.query_title(title_id,'')
            save_file(fname, xml, 'w')

        bhl_xml = BHL_XML('', xml)
        return bhl_xml.get_title_and_items()
    def get_item_id_list(self, start_date, end_date):
        xml = self.bhl_api.query_most_recent(start_date, end_date)
        execute = True
        r_list = []
        d_list = []
        while execute:
            bhl_xml = BHL_XML('',xml)
            resumption = bhl_xml.get_resumption_token()
            print(resumption)
            item_id_list = bhl_xml.get_oai_item_id()
            print(item_id_list)
            date_list = bhl_xml.get_oai_date_list()
            print(date_list)
            r_list += item_id_list
            d_list += date_list
            if resumption:
                xml = self.bhl_api.query_most_recent_resumption(resumption[0])
            else:
                execute = False


        return [d_list,r_list]
    def get_item_id_list_by_batches(self, start_date, end_date, resumptionToken):
        if resumptionToken:
            xml = self.bhl_api.query_most_recent_resumption(resumptionToken)
        else:
            xml = self.bhl_api.query_most_recent(start_date, end_date)


        r_list = []
        d_list = []
        res = ''
        bhl_xml = BHL_XML('',xml)
        resumption = bhl_xml.get_resumption_token()
        if resumption:
            res = resumption[0]
        print(resumption)
        item_id_list = bhl_xml.get_oai_item_id()
        print(item_id_list)
        date_list = bhl_xml.get_oai_date_list()
        print(date_list)
        r_list += item_id_list
        d_list += date_list


        return [d_list,r_list,res]
 def get_item_metadata(self, item_id):
     xml = self.bhl_api.query_item_metadata(item_id)
     bhl_xml = BHL_XML('', xml)
     
     return bhl_xml.get_items()