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# Copyright 2011 GRNET S.A. All rights reserved.

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class CLIError(Exception):

    def __init__(self, message, status=0, details='', importance=0):

        """importance is set by the raiser

        0 is the lowest possible importance

        Suggested values: 0, 1, 2, 3

        """

        super(CLIError, self).__init__(message, status, details)

        self.message = message

        self.status = status

        self.details = details

        self.importance = importance

    def __unicode__(self):

        return unicode(self.message)

class CLISyntaxError(CLIError):

        def __init__(self, message='Syntax Error', status=10, details=''):

                super(CLISyntaxError, self).__init__(message, status, details, importance=1)

class CLIUnknownCommand(CLIError):

        def __init__(self, message='Unknown Command', status=12, details=''):

                super(CLIUnknownCommand, self).__init__(message, status, details, importance=0)

class CLICmdSpecError(CLIError):

        def __init__(self, message='Command Specification Error', status=13, details='', importance=1):

                super(CLICmdSpecError, self).__init__(message, status, details, importance=0)

class CLICmdIncompleteError(CLICmdSpecError):

    def __init__(self, message='Incomplete Command Error', status=14, details=''):

        super(CLICmdSpecError, self).__init__(message, status, details, importance=1)

def raiseCLIError(err, importance = -1):

    if importance < 0:

        if err.status <= 0:

            importance = 0

        elif err.status <= 400:

            importance = 1

        elif err.status <= 500:

            importance = 2

        else:

            importance = 3

    raise CLIError(err.message, err.status, err.details, importance)