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#!/usr/bin/env python
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
from __future__ import print_function, unicode_literals
import optparse
from proton import Message, Url
from proton.reactor import Container
from proton.handlers import MessagingHandler, TransactionHandler
class TxSend(MessagingHandler, TransactionHandler):
def __init__(self, url, messages, batch_size):
super(TxSend, self).__init__()
self.url = Url(url)
self.current_batch = 0
self.committed = 0
self.confirmed = 0
self.total = messages
self.batch_size = batch_size
def on_start(self, event):
self.container = event.container
self.conn = self.container.connect(self.url)
self.sender = self.container.create_sender(self.conn, self.url.path)
self.container.declare_transaction(self.conn, handler=self)
self.transaction = None
def on_transaction_declared(self, event):
self.transaction = event.transaction
self.send()
def on_sendable(self, event):
self.send()
def send(self):
while self.transaction and self.sender.credit and (self.committed + self.current_batch) < self.total:
seq = self.committed + self.current_batch + 1
msg = Message(id=seq, body={'sequence':seq})
self.transaction.send(self.sender, msg)
self.current_batch += 1
if self.current_batch == self.batch_size:
self.transaction.commit()
self.transaction = None
def on_accepted(self, event):
if event.sender == self.sender:
self.confirmed += 1
def on_transaction_committed(self, event):
self.committed += self.current_batch
if self.committed == self.total:
print("all messages committed")
event.connection.close()
else:
self.current_batch = 0
self.container.declare_transaction(self.conn, handler=self)
def on_disconnected(self, event):
self.current_batch = 0
parser = optparse.OptionParser(usage="usage: %prog [options]",
description="Send messages transactionally to the supplied address.")
parser.add_option("-a", "--address", default="localhost:5672/examples",
help="address to which messages are sent (default %default)")
parser.add_option("-m", "--messages", type="int", default=100,
help="number of messages to send (default %default)")
parser.add_option("-b", "--batch-size", type="int", default=10,
help="number of messages in each transaction (default %default)")
opts, args = parser.parse_args()
try:
Container(TxSend(opts.address, opts.messages, opts.batch_size)).run()
except KeyboardInterrupt: pass
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