Beispiel #1
0
    def process_result_set(self):
        """
        @return: a Topo_Diff object consisting of the commit node and parent link
        """
        ret = Topo_Diff()

        hash_parent = None
        hash_child = None
        ts_created = None
        for _, _, r_set in self.iter__r_set():
            for row in r_set:
                for ret_dict in row:

                    assert None == hash_parent  # assert hash values set once only
                    assert None == hash_child
                    assert None == ts_created

                    hash_parent = ret_dict['head_parent_commit']['hash']
                    hash_child = ret_dict['head_commit']['hash']
                    ts_created = ret_dict['ts_created']

        ret.node_set_add = [{'id': self.n_id, '__label_set': ['__Commit']}]
        l = Link.Link_Ptr(src_id=hash_parent, dst_id=hash_child)
        l['id'] = self.l_id
        l['__type'] = '__Parent'
        ret.link_set_add = [l]
        ret.meta['ts_created'] = ts_created
        return ret
Beispiel #2
0
    def deserialize_param_set(param_json):
        l_ptr_set_raw = param_json['link_ptr_set']

        __sanitize_input(l_ptr_set_raw)

        l_ptr_set = []
        for lptr_dict in l_ptr_set_raw:
            src_id = lptr_dict.get('__src_id')
            dst_id = lptr_dict.get('__dst_id')
            l_ptr_set += [Link.Link_Ptr(src_id=src_id, dst_id=dst_id)]

        return l_ptr_set
Beispiel #3
0
    def process_result_set(self):
        ret_n_set = []
        ret_l_set = []
        for _, _, r_set in self.iter__r_set():
            for row in r_set:
                n, n_lbl_set, l_set = row.items()  # see query return statement

                # reconstruct nodes
                assert None != n.get('id'), "db contains nodes with no id"

                n['__label_set'] = self.process_q_ret__n_label_set(n_lbl_set)

                ret_n_set.append(n)

                # reconstruct links from link tuples
                for l_tuple in l_set:
                    assert 3 == len(l_tuple)  # see query return statement

                    if None == l_tuple[0]:  # check if link dst is None
                        # as link matching is optional, collect may yield empty sets
                        continue

                    ret_l, ret_l_type, ret_l_dst_id = l_tuple
                    l = Link.Link_Ptr(src_id=n['id'], dst_id=ret_l_dst_id)
                    l['id'] = ret_l['id']
                    l['__type'] = self.process_q_ret__l_type(ret_l_type)

                    ret_l_set.append(l)

        if len(ret_n_set
               ) >= self.limit:  # TODO: generalize logic, mv to DB_Driver
            log.warning(
                'DB op result set larger than query limit: size: %d, limit: %d'
                % (len(ret_n_set), self.limit))

        topo_diff = Topo_Diff(node_set_add=ret_n_set, link_set_add=ret_l_set)
        return topo_diff