view sat_frontends/bridge/bridge_frontend.py @ 3087:a51f7fce1e2c

tools (stream): data modification on SatFile: - if `data_cb` is used and if it returns a not None value, it is used instead of the data read from the file. This allows data modification on the fly, useful notably for encryption - new `check_size_with_read` argument which check size on `close()` using amount of data actually read/written instead of file size. This avoid a warning when file is modified on the fly - added `closed` attribute
author Goffi <goffi@goffi.org>
date Fri, 20 Dec 2019 12:28:04 +0100
parents ab2696e34d29
children 9d0df638c8b4
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# SAT communication bridge
# Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


class BridgeException(Exception):
    """An exception which has been raised from the backend and arrived to the frontend."""

    def __init__(self, name, message="", condition=""):
        """

        @param name (str): full exception class name (with module)
        @param message (str): error message
        @param condition (str) : error condition
        """
        Exception.__init__(self)
        self.fullname = str(name)
        self.message = str(message)
        self.condition = str(condition) if condition else ""
        self.module, __, self.classname = str(self.fullname).rpartition(".")

    def __str__(self):
        message = (": %s" % self.message) if self.message else ""
        return self.classname + message

    def __eq__(self, other):
        return self.classname == other