python/examples/api/spout

#!/usr/bin/env python
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import optparse, time
from qpid.messaging import *
from qpid.util import URL

def nameval(st):
  idx = st.find("=")
  if idx >= 0:
    name = st[0:idx]
    value = st[idx+1:]
  else:
    name = st
    value = None
  return name, value

parser = optparse.OptionParser(usage="usage: %prog [options] ADDRESS [ CONTENT ... ]",
                               description="Send messages to the supplied address.")
parser.add_option("-b", "--broker", default="localhost",
                  help="connect to specified BROKER (default %default)")
parser.add_option("-c", "--count", type=int, default=1,
                  help="stop after count messages have been sent, zero disables (default %default)")
parser.add_option("-t", "--timeout", type=float, default=None,
                  help="exit after the specified time")
parser.add_option("-i", "--id", help="use the supplied id instead of generating one")
parser.add_option("-r", "--reply-to", help="specify reply-to address")
parser.add_option("-P", "--property", dest="properties", action="append", default=[],
                  metavar="NAME=VALUE", help="specify message property")
parser.add_option("-M", "--map", dest="entries", action="append", default=[],
                  metavar="KEY=VALUE",
                  help="specify map entry for message body")

opts, args = parser.parse_args()

url = URL(opts.broker)
if opts.id is None:
  spout_id = str(uuid4())
else:
  spout_id = opts.id
if args:
  addr = args.pop(0)
else:
  parser.error("address is required")

content = None

if args:
  text = " ".join(args)
else:
  text = None

if opts.entries:
  content = {}
  if text:
    content["text"] = text
  for e in opts.entries:
    name, val = nameval(e)
    content[name] = val
else:
  content = text

# XXX: should make URL default the port for us
conn = Connection.open(url.host, url.port or AMQP_PORT,
                       username=url.user, password=url.password)
ssn = conn.session()
snd = ssn.sender(addr)

count = 0
start = time.time()
while (opts.count == 0 or count < opts.count) and \
      (opts.timeout is None or time.time() - start < opts.timeout):
  msg = Message(content, reply_to=opts.reply_to)
  msg.properties["spout-id"] = "%s:%s" % (spout_id, count)
  for p in opts.properties:
    name, val = nameval(p)
    msg.properties[name] = val

  try:
    snd.send(msg)
    count += 1
    print msg
  except SendError, e:
    print e
    break

conn.close()