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#
# 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.
#
import os, socket, time, textwrap, re
ssl = socket.ssl
def connect(host, port):
sock = socket.socket()
sock.connect((host, port))
sock.setblocking(1)
# XXX: we could use this on read, but we'd have to put write in a
# loop as well
# sock.settimeout(1)
return sock
def listen(host, port, predicate = lambda: True, bound = lambda: None):
sock = socket.socket()
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((host, port))
sock.listen(5)
bound()
while predicate():
s, a = sock.accept()
yield s
def mtime(filename):
return os.stat(filename).st_mtime
def wait(condition, predicate, timeout=None):
condition.acquire()
try:
passed = 0
start = time.time()
while not predicate():
if timeout is None:
condition.wait()
elif passed < timeout:
condition.wait(timeout - passed)
else:
return False
passed = time.time() - start
return True
finally:
condition.release()
def notify(condition, action=lambda: None):
condition.acquire()
try:
action()
condition.notifyAll()
finally:
condition.release()
def fill(text, indent, heading = None):
sub = indent * " "
if heading:
if not text:
return (indent - 2) * " " + heading
init = (indent - 2) * " " + heading + " -- "
else:
init = sub
w = textwrap.TextWrapper(initial_indent = init, subsequent_indent = sub)
return w.fill(" ".join(text.split()))
class URL:
RE = re.compile(r"""
# [ <scheme>:// ] [ <user> [ / <password> ] @] <host> [ :<port> ]
^ (?: ([^:/@]+)://)? (?: ([^:/@]+) (?: / ([^:/@]+) )? @)? ([^@:/]+) (?: :([0-9]+))?$
""", re.X)
AMQPS = "amqps"
AMQP = "amqp"
def __init__(self, s):
match = URL.RE.match(s)
if match is None:
raise ValueError(s)
self.scheme, self.user, self.password, self.host, port = match.groups()
if port is None:
self.port = None
else:
self.port = int(port)
def __repr__(self):
return "URL(%r)" % str(self)
def __str__(self):
s = ""
if self.scheme:
s += "%s://" % self.scheme
if self.user:
s += self.user
if self.password:
s += "/%s" % self.password
s += "@"
s += self.host
if self.port:
s += ":%s" % self.port
return s
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