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#!/router/bin/python
try:
# support import for Python 2
import outer_packages
except ImportError:
# support import for Python 3
import client.outer_packages
from client_utils.jsonrpc_client import JsonRpcClient
from client_utils.packet_builder import CTRexPktBuilder
import json
class CTRexStatelessClient(object):
"""docstring for CTRexStatelessClient"""
def __init__(self, server="localhost", port=5050, virtual=False):
super(CTRexStatelessClient, self).__init__()
self.tx_link = CTRexStatelessClient.CTxLink(server, port, virtual)
self._conn_handler = {}
def owned(func):
def wrapper(self, *args, **kwargs ) :
if self._conn_handler.get(kwargs.get("port_id")):
return func(self, *args, **kwargs)
else:
raise RuntimeError("The requested method ('{0}') cannot be invoked unless the desired port is owned".
format(func.__name__))
return wrapper
def acquire(self, port_id, username, force=False):
params = {"port_id": port_id,
"user": username,
"force": force}
self._conn_handler[port_id] = self.transmit("acquire", params)
return self._conn_handler
@owned
def release(self, port_id=None):
self._conn_handler.pop(port_id)
params = {"handler":self._conn_handler.get(port_id),
"port_id": port_id}
return self.transmit("release", params)
@owned
def add_stream(self, stream_id, stream_obj, port_id=None):
assert isinstance(stream_obj, CStream)
params = {"handler":self._conn_handler.get(port_id),
"port_id":port_id,
"stream_id":stream_id,
"stream":stream_obj.dump()}
return self.transmit("add_stream", params)
@owned
def remove_stream(self, stream_id, port_id=None):
params = {"handler":self._conn_handler.get(port_id),
"port_id":port_id,
"stream_id":stream_id}
return self.transmit("remove_stream", params)
@owned
def get_stream_list(self, port_id=None):
params = {"handler":self._conn_handler.get(port_id),
"port_id":port_id}
return self.transmit("get_stream_list", params)
@owned
def get_stream(self, stream_id, port_id=None):
params = {"handler":self._conn_handler.get(port_id),
"port_id":port_id}
return self.transmit("get_stream_list", params)
def transmit(self, method_name, params={}):
return self.tx_link.transmit(method_name, params)
# ------ private classes ------ #
class CTxLink(object):
"""describes the connectivity of the stateless client method"""
def __init__(self, server="localhost", port=5050, virtual=False):
super(CTRexStatelessClient.CTxLink, self).__init__()
self.virtual = virtual
self.server = server
self.port = port
self.rpc_link = JsonRpcClient(self.server, self.port)
if not self.virtual:
self.rpc_link.connect()
def transmit(self, method_name, params={}):
if self.virtual:
print "Transmitting virtually over tcp://{server}:{port}".format(
server=self.server,
port=self.port)
id, msg = self.rpc_link.create_jsonrpc_v2(method_name, params)
print msg
return
else:
return self.rpc_link.invoke_rpc_method(method_name, params)
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
|
