| Name : python-pyf-station
| |
| Version : 2.0.4
| Vendor : obs://build_opensuse_org/home:appleonkel
|
| Release : 1.2
| Date : 2016-10-10 14:34:12
|
| Group : Development/Languages/Python
| Source RPM : python-pyf-station-2.0.4-1.2.src.rpm
|
| Size : 0.04 MB
| |
| Packager : (none)
| |
| Summary : PyF.Station is a protocol with client and server implementation to transfer python generators accross tcp networks
|
Description :
Introduction
============
PyF.Station is a protocol with client and server to transfer python generators accross tcp networks. Items in the generator must be pyf.transport.Packet instances.
Best practice is to provide information about the flow in the first packet, identified as an header (containing for example authentication data, method, target, and so on).
Errors are passed on both ends.
Server
------
Please note that the server requires tgscheduler (to spawn tasks, passing generators) and twisted.
An example::
from twisted.internet import reactor
from pyf.station import FlowServer
def sample_handler(flow, client=None):
header = flow.next()
print header
for i, item in enumerate(flow):
if not i%50:
print i, item
print \"end of flow...\"
client.success(\"Done\")
factory = FlowServer(sample_handler)
reactor.listenTCP(8000,factory)
reactor.run()
The handler can be a simple callable, as in the example above, or a user defined class:
from twisted.internet import reactor
from pyf.station import FlowServer
class SampleHandler(object):
def __init__(self, flow, client):
self.flow = flow
self.client = client
def handle_data(self):
header = self.flow.next()
print header
for i, item in enumerate(self.flow):
if not i%50:
print i, item
print \"end of flow...\"
self.client.success(\"Done\")
factory = FlowServer(SampleHandler)
reactor.listenTCP(8000,factory)
reactor.run()
Another example, if you are in an already threaded env (like a wsgi server)::
from tgscheduler import scheduler
from twisted.internet import reactor
from pyf.station import FlowServer
from pyf.transport import Packet
def sample_handler(flow, client=None):
header = flow.next()
print header
for i, item in enumerate(flow):
if not i%50:
print i, item
client.message(Packet({\'type\': \'info\',
\'message\': \'hello ! (%s)\' % i}))
print \"end of flow...\"
client.success(\"Done\")
factory = FlowServer(sample_handler)
reactor.listenTCP(8000,factory)
scheduler.add_single_task(reactor.run,
kw=dict(installSignalHandlers=0),
initialdelay=0)
scheduler.start_scheduler()
while True:
pass
Client
------
Example of client::
from pyf.station import StationClient
from pyf.transport import Packet
client = StationClient(\'127.0.0.1\', 8000, True)
def message_handler(message_packet):
print \"Message handler triggered: %s\" % message_packet
client.add_listener(\'message_received\', message_handler)
flow = (Packet(dict(Field1=i+1,
Field2=(\'titi\', \'tata\')[i%2], num=i+1,
Field3=(i+1)*10))
for i in range(10000))
values = client.call(
flow,
header=dict(authtkt=\'my false auth token :)\',
action=\'my_action\'))
for i, value in enumerate(values):
if not i % 5000:
print i
if isinstance(value, Packet):
print value
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/home:/appleonkel:/python/openSUSE_13.2/noarch |
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Provides :
python-pyf-station
Requires :
