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# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
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#
#     http://www.apache.org/licenses/LICENSE-2.0
#
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__all__ = [
    "Provider",
    "State",
    "LibcloudLBError",
    "LibcloudLBImmutableError",

    "OLD_CONSTANT_TO_NEW_MAPPING"
]

from libcloud.common.types import LibcloudError


class LibcloudLBError(LibcloudError):
    pass


class LibcloudLBImmutableError(LibcloudLBError):
    pass


class Provider(object):
    """
    Defines for each of the supported providers

    Non-Dummy drivers are sorted in alphabetical order. Please preserve this
    ordering when adding new drivers.

    :cvar ALIYUN_SLB: Aliyun SLB loadbalancer driver
    """
    ALB = 'alb'
    ALIYUN_SLB = 'aliyun_slb'
    BRIGHTBOX = 'brightbox'
    CLOUDSTACK = 'cloudstack'
    DIMENSIONDATA = 'dimensiondata'
    ELB = 'elb'
    GCE = 'gce'
    GOGRID = 'gogrid'
    NINEFOLD = 'ninefold'
    RACKSPACE = 'rackspace'
    SOFTLAYER = 'softlayer'

    # Deprecated
    RACKSPACE_US = 'rackspace_us'
    RACKSPACE_UK = 'rackspace_uk'


OLD_CONSTANT_TO_NEW_MAPPING = {
    Provider.RACKSPACE_US: Provider.RACKSPACE,
    Provider.RACKSPACE_UK: Provider.RACKSPACE,
}


class State(object):
    """
    Standard states for a loadbalancer

    :cvar RUNNING: loadbalancer is running and ready to use
    :cvar UNKNOWN: loabalancer state is unknown
    """

    RUNNING = 0
    PENDING = 1
    UNKNOWN = 2
    ERROR = 3
    DELETED = 4


class MemberCondition(object):
    """
    Each member of a load balancer can have an associated condition
    which determines its role within the load balancer.
    """
    ENABLED = 0
    DISABLED = 1
    DRAINING = 2
