1 files changed, 149 insertions, 0 deletions
diff --git a/qpid/python/qpid/util.py b/qpid/python/qpid/util.py
new file mode 100644
index 0000000000..e62bebdf24
--- /dev/null
+++ b/qpid/python/qpid/util.py
@@ -0,0 +1,149 @@
+#
+# 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
+
+try:
+  from ssl import wrap_socket as ssl
+except ImportError:
+  from socket import ssl as wrap_socket
+  class ssl:
+
+    def __init__(self, sock):
+      self.sock = sock
+      self.ssl = wrap_socket(sock)
+
+    def recv(self, n):
+      return self.ssl.read(n)
+
+    def send(self, s):
+      return self.ssl.write(s)
+
+    def close(self):
+      self.sock.close()
+
+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:
+        # using the timed wait prevents keyboard interrupts from being
+        # blocked while waiting
+        condition.wait(3)
+      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):
+    if isinstance(s, URL):
+      self.scheme = s.scheme
+      self.user = s.user
+      self.password = s.password
+      self.host = s.host
+      self.port = s.port
+    else:
+      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
+
+def default(value, default):
+  if value is None:
+    return default
+  else:
+    return value