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#!/router/bin/python
import external_packages
from client_utils.packet_builder import CTRexPktBuilder
from collections import OrderedDict
class CStreamList(object):
def __init__(self):
self.streams_list = OrderedDict()
self._stream_id = 0
# self._stream_by_name = {}
def append_stream(self, name, stream_obj):
assert isinstance(stream_obj, CStream)
if name in self.streams_list:
raise NameError("A stream with this name already exists on this list.")
self.streams_list[name]=stream_obj
return
def remove_stream(self, name):
return self.streams_list.pop(name)
def export_to_yaml(self, file_path):
pass
def load_yaml(self, file_path):
# clear all existing streams linked to this object
self.streams_list.clear()
# self._stream_id = 0
# load from YAML file the streams one by one
try:
with open(file_path, 'r') as f:
loaded_streams = yaml.load(f)
# assume at this point that YAML file is according to rules and correct
except yaml.YAMLError as e:
print "Error in YAML configuration file:", e
print "Aborting YAML loading, no changes made to stream list"
return
pass
class CStream(object):
"""docstring for CStream"""
DEFAULTS = {"rx_stats": CRxStats,
"mode": CTxMode,
"isg": 5.0,
"next_stream": -1,
"self_start": True,
"enabled": True}
def __init__(self, **kwargs):
super(CStream, self).__init__()
for k, v in kwargs.items():
setattr(self, k, v)
# set default values to unset attributes, according to DEFAULTS dict
set_keys = set(kwargs.keys())
keys_to_set = [x
for x in self.DEFAULTS
if x not in set_keys]
for key in keys_to_set:
default = self.DEFAULTS.get(key)
if type(default) == type:
setattr(self, key, default())
else:
setattr(self, key, default)
@property
def packet(self):
return self._packet
@packet.setter
def packet(self, packet_obj):
assert isinstance(packet_obj, CTRexPktBuilder)
self._packet = packet_obj
@property
def enabled(self):
return self._enabled
@enabled.setter
def enabled(self, bool_value):
self._enabled = bool(bool_value)
@property
def self_start(self):
return self._self_start
@self_start.setter
def self_start(self, bool_value):
self._self_start = bool(bool_value)
@property
def next_stream(self):
return self._next_stream
@next_stream.setter
def next_stream(self, value):
self._next_stream = int(value)
def dump(self):
pass
return {"enabled": self.enabled,
"self_start": self.self_start,
"isg": self.isg,
"next_stream": self.next_stream,
"packet": self.packet.dump_pkt(),
"mode": self.mode.dump(),
"vm": self.packet.get_vm_data(),
"rx_stats": self.rx_stats.dump()}
class CRxStats(object):
def __init__(self, enabled=False, seq_enabled=False, latency_enabled=False):
self._rx_dict = {"enabled": enabled,
"seq_enabled": seq_enabled,
"latency_enabled": latency_enabled}
@property
def enabled(self):
return self._rx_dict.get("enabled")
@enabled.setter
def enabled(self, bool_value):
self._rx_dict['enabled'] = bool(bool_value)
@property
def seq_enabled(self):
return self._rx_dict.get("seq_enabled")
@seq_enabled.setter
def seq_enabled(self, bool_value):
self._rx_dict['seq_enabled'] = bool(bool_value)
@property
def latency_enabled(self):
return self._rx_dict.get("latency_enabled")
@latency_enabled.setter
def latency_enabled(self, bool_value):
self._rx_dict['latency_enabled'] = bool(bool_value)
def dump(self):
return {k: v
for k, v in self._rx_dict.items()
if v
}
class CTxMode(object):
"""docstring for CTxMode"""
def __init__(self, tx_mode, pps):
super(CTxMode, self).__init__()
if tx_mode not in ["continuous", "single_burst", "multi_burst"]:
raise ValueError("Unknown TX mode ('{0}')has been initialized.".format(tx_mode))
self._tx_mode = tx_mode
self._fields = {'pps': float(pps)}
if tx_mode == "single_burst":
self._fields['total_pkts'] = 0
elif tx_mode == "multi_burst":
self._fields['pkts_per_burst'] = 0
self._fields['ibg'] = 0.0
self._fields['count'] = 0
else:
pass
def set_tx_mode_attr(self, attr, val):
if attr in self._fields:
self._fields[attr] = type(self._fields.get(attr))(val)
else:
raise ValueError("The provided attribute ('{0}') is not a legal attribute in selected TX mode ('{1}')".
format(attr, self._tx_mode))
def dump(self):
dump = {"type": self._tx_mode}
dump.update({k: v
for k, v in self._fields.items()
})
return dump
if __name__ == "__main__":
pass
|
