Tagging RC5 for M4 release

git-svn-id: https://svn.apache.org/repos/asf/qpid/tags/M4@728121 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 162 insertions, 0 deletions

diff --git a/RC5/python/qpid/delegates.py b/RC5/python/qpid/delegates.py
new file mode 100644
index 0000000000..bf26553dda
--- /dev/null
+++ b/RC5/python/qpid/delegates.py
@@ -0,0 +1,162 @@
+#
+# 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, connection, session
+from util import notify
+from datatypes import RangedSet
+from logging import getLogger
+
+log = getLogger("qpid.io.ctl")
+
+class Delegate:
+
+  def __init__(self, connection, delegate=session.client):
+    self.connection = connection
+    self.spec = connection.spec
+    self.delegate = delegate
+    self.control = self.spec["track.control"].value
+
+  def received(self, seg):
+    ssn = self.connection.attached.get(seg.channel)
+    if ssn is None:
+      ch = connection.Channel(self.connection, seg.channel)
+    else:
+      ch = ssn.channel
+
+    if seg.track == self.control:
+      ctl = seg.decode(self.spec)
+      log.debug("RECV %s", ctl)
+      attr = ctl._type.qname.replace(".", "_")
+      getattr(self, attr)(ch, ctl)
+    elif ssn is None:
+      ch.session_detached()
+    else:
+      ssn.received(seg)
+
+  def connection_close(self, ch, close):
+    self.connection.close_code = (close.reply_code, close.reply_text)
+    ch.connection_close_ok()
+    self.connection.sock.close()
+    if not self.connection.opened:
+      self.connection.failed = True
+      notify(self.connection.condition)
+
+  def connection_close_ok(self, ch, close_ok):
+    self.connection.opened = False
+    notify(self.connection.condition)
+
+  def session_attach(self, ch, a):
+    try:
+      self.connection.attach(a.name, ch, self.delegate, a.force)
+      ch.session_attached(a.name)
+    except connection.ChannelBusy:
+      ch.session_detached(a.name)
+    except connection.SessionBusy:
+      ch.session_detached(a.name)
+
+  def session_attached(self, ch, a):
+    notify(ch.session.condition)
+
+  def session_detach(self, ch, d):
+    #send back the confirmation of detachment before removing the
+    #channel from the attached set; this avoids needing to hold the
+    #connection lock during the sending of this control and ensures
+    #that if the channel is immediately reused for a new session the
+    #attach request will follow the detached notification.
+    ch.session_detached(d.name)
+    ssn = self.connection.detach(d.name, ch)
+
+  def session_detached(self, ch, d):
+    self.connection.detach(d.name, ch)
+
+  def session_request_timeout(self, ch, rt):
+    ch.session_timeout(rt.timeout);
+
+  def session_command_point(self, ch, cp):
+    ssn = ch.session
+    ssn.receiver.next_id = cp.command_id
+    ssn.receiver.next_offset = cp.command_offset
+
+  def session_completed(self, ch, cmp):
+    ch.session.sender.completed(cmp.commands)
+    if cmp.timely_reply:
+      ch.session_known_completed(cmp.commands)
+    notify(ch.session.condition)
+
+  def session_known_completed(self, ch, kn_cmp):
+    ch.session.receiver.known_completed(kn_cmp.commands)
+
+  def session_flush(self, ch, f):
+    rcv = ch.session.receiver
+    if f.expected:
+      if rcv.next_id == None:
+        exp = None
+      else:
+        exp = RangedSet(rcv.next_id)
+      ch.session_expected(exp)
+    if f.confirmed:
+      ch.session_confirmed(rcv._completed)
+    if f.completed:
+      ch.session_completed(rcv._completed)
+
+class Server(Delegate):
+
+  def start(self):
+    self.connection.read_header()
+    self.connection.write_header(self.spec.major, self.spec.minor)
+    connection.Channel(self.connection, 0).connection_start(mechanisms=["ANONYMOUS"])
+
+  def connection_start_ok(self, ch, start_ok):
+    ch.connection_tune(channel_max=65535)
+
+  def connection_tune_ok(self, ch, tune_ok):
+    pass
+
+  def connection_open(self, ch, open):
+    self.connection.opened = True
+    ch.connection_open_ok()
+    notify(self.connection.condition)
+
+class Client(Delegate):
+
+  PROPERTIES = {"product": "qpid python client",
+                "version": "development",
+                "platform": os.name}
+
+  def __init__(self, connection, username="guest", password="guest", mechanism="PLAIN"):
+    Delegate.__init__(self, connection)
+    self.username = username
+    self.password = password
+    self.mechanism = mechanism
+
+  def start(self):
+    self.connection.write_header(self.spec.major, self.spec.minor)
+    self.connection.read_header()
+
+  def connection_start(self, ch, start):
+    r = "\0%s\0%s" % (self.username, self.password)
+    ch.connection_start_ok(client_properties=Client.PROPERTIES, mechanism=self.mechanism, response=r)
+
+  def connection_tune(self, ch, tune):
+    ch.connection_tune_ok()
+    ch.connection_open()
+
+  def connection_open_ok(self, ch, open_ok):
+    self.connection.opened = True
+    notify(self.connection.condition)