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"""Abstract class for serializing flows."""
from abc import ABC, abstractmethod
from pyof.v0x01.controller2switch.flow_mod import \
FlowModCommand as CommonFlowModCommand
class FlowSerializer(ABC):
"""Common code for OF 1.0 and 1.3 flow serialization.
For a FlowMod dictionary, create a FlowMod message and, for a FlowStats,
create a dictionary.
"""
# These values are the same in both versions 1.0 and 1.3
OFPFC_ADD = CommonFlowModCommand.OFPFC_ADD
OFPFC_DELETE = CommonFlowModCommand.OFPFC_DELETE
def __init__(self):
"""Initialize common attributes of 1.0 and 1.3 versions."""
self.flow_attributes = set(('priority', 'idle_timeout', 'hard_timeout',
'cookie'))
@abstractmethod
def from_dict(self, dictionary):
"""Return a FlowMod instance created from a serialized dictionary."""
pass
def to_dict(self, flow_stats):
"""Return a serialized dictionary for a FlowStats message."""
kytos /
flow_manager
