nilmdb/nilmdb/client/errors.py

"""HTTP client errors"""

from nilmdb.utils.printf import *

class Error(Exception):
    """Base exception for both ClientError and ServerError responses"""
    def __init__(self,
                 status = "Unspecified error",
                 message = None,
                 url = None,
                 traceback = None):
        Exception.__init__(self, status)
        self.status = status     # e.g. "400 Bad Request"
        self.message = message   # textual message from the server
        self.url = url           # URL we were requesting
        self.traceback = traceback # server traceback, if available
    def _format_error(self, show_url):
        s = sprintf("[%s]", self.status)
        if self.message:
            s += sprintf(" %s", self.message)
        if show_url and self.url: # pragma: no cover
            s += sprintf(" (%s)", self.url)
        if self.traceback: # pragma: no cover
            s += sprintf("\nServer traceback:\n%s", self.traceback)
        return s
    def __str__(self):
        return self._format_error(show_url = False)
    def __repr__(self): # pragma: no cover
        return self._format_error(show_url = True)
class ClientError(Error):
    pass
class ServerError(Error):
    pass