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#!/usr/bin/env python
'''
Simple NORM file receiver example app using Python NORM API
'''
import sys, os.path
from optparse import OptionParser
import pynorm
USAGE = 'usage: %s [options] <cacheDir>' % sys.argv[0]
DEFAULT_ADDR = '224.1.2.3'
DEFAULT_PORT = 6003
def get_option_parser():
parser = OptionParser(usage=USAGE)
parser.set_defaults(address=DEFAULT_ADDR, port=DEFAULT_PORT)
parser.add_option('-a', '--address',
help='The IP address to bind to (default %s)' % DEFAULT_ADDR)
parser.add_option('-p', '--port', type=int,
help='The port number to listen on (default %i)' % DEFAULT_PORT)
parser.add_option('-i', '--iface',
help='The inteface to transmit multicast on.')
return parser
def main(argv):
(opts, args) = get_option_parser().parse_args(argv)
if len(args) != 2:
print get_option_parser().get_usage()
return 1
path = os.path.abspath(args[1])
instance = pynorm.Instance()
instance.setCacheDirectory(path)
session = instance.createSession(opts.address, opts.port)
if opts.iface:
session.setMulticastInterface(opts.iface)
session.startReceiver(1024*1024)
try:
for event in instance:
if event == 'NORM_RX_OBJECT_INFO':
event.object.filename = os.path.join(path, event.object.info)
print 'Downloading file %s' % event.object.filename
elif event == 'NORM_RX_OBJECT_UPDATED':
print 'File %s - %i bytes left to download' % (
event.object.filename, event.object.bytesPending)
elif event == 'NORM_RX_OBJECT_COMPLETED':
print 'File %s completed' % event.object.filename
return 0
elif event == 'NORM_RX_OBJECT_ABORTED':
print 'File %s aborted' % event.object.filename
return 1
else:
print event
except KeyboardInterrupt:
pass
print 'Exiting.'
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))
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