#
# Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
#

import sys
import re

IP_FABRIC_VN_FQ_NAME = ['default-domain', 'default-project', 'ip-fabric']
IP_FABRIC_RI_FQ_NAME = IP_FABRIC_VN_FQ_NAME + ['__default__']
LINK_LOCAL_VN_FQ_NAME = ['default-domain', 'default-project', '__link_local__']
LINK_LOCAL_RI_FQ_NAME = LINK_LOCAL_VN_FQ_NAME + ['__link_local__']
SG_NO_RULE_NAME = "__no_rule__"
SG_NO_RULE_FQ_NAME = ['default-domain', 'default-project', SG_NO_RULE_NAME]

BGP_RTGT_MIN_ID = 8000000
SGID_MIN_ALLOC = 8000000

def obj_to_json(obj):
    return dict((k, v) for k, v in obj.__dict__.iteritems())
#end obj_to_json

def json_to_obj(obj):
    pass
#end json_to_obj

def ignore_exceptions(func):
    def wrapper(*args, **kwargs):
        try:
            return func(*args, **kwargs)
        except Exception as e:
            return None
    return wrapper
# end ignore_exceptions

_illegal_unichrs = [(0x00, 0x08), (0x0B, 0x0C), (0x0E, 0x1F),
                        (0x7F, 0x84), (0x86, 0x9F),
                        (0xFDD0, 0xFDDF), (0xFFFE, 0xFFFF)]
if sys.maxunicode >= 0x10000:  # not narrow build
        _illegal_unichrs.extend([(0x1FFFE, 0x1FFFF), (0x2FFFE, 0x2FFFF),
                                 (0x3FFFE, 0x3FFFF), (0x4FFFE, 0x4FFFF),
                                 (0x5FFFE, 0x5FFFF), (0x6FFFE, 0x6FFFF),
                                 (0x7FFFE, 0x7FFFF), (0x8FFFE, 0x8FFFF),
                                 (0x9FFFE, 0x9FFFF), (0xAFFFE, 0xAFFFF),
                                 (0xBFFFE, 0xBFFFF), (0xCFFFE, 0xCFFFF),
                                 (0xDFFFE, 0xDFFFF), (0xEFFFE, 0xEFFFF),
                                 (0xFFFFE, 0xFFFFF), (0x10FFFE, 0x10FFFF)])

_illegal_ranges = ["%s-%s" % (unichr(low), unichr(high))
                   for (low, high) in _illegal_unichrs]
illegal_xml_chars_RE = re.compile(u'[%s]' % u''.join(_illegal_ranges))