Creating a branch for experimenting with some ideas for JMS client.rajith_jms_client

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/rajith_jms_client@1128369 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 97 insertions, 0 deletions

diff --git a/qpid/python/examples/api/drain b/qpid/python/examples/api/drain
new file mode 100755
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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.
+#
+
+import optparse
+from qpid.messaging import *
+from qpid.util import URL
+from qpid.log import enable, DEBUG, WARN
+
+parser = optparse.OptionParser(usage="usage: %prog [options] ADDRESS ...",
+                               description="Drain messages from the supplied address.")
+parser.add_option("-b", "--broker", default="localhost",
+                  help="connect to specified BROKER (default %default)")
+parser.add_option("-c", "--count", type="int",
+                  help="number of messages to drain")
+parser.add_option("-f", "--forever", action="store_true",
+                  help="ignore timeout and wait forever")
+parser.add_option("-r", "--reconnect", action="store_true",
+                  help="enable auto reconnect")
+parser.add_option("-i", "--reconnect-interval", type="float", default=3,
+                  help="interval between reconnect attempts")
+parser.add_option("-l", "--reconnect-limit", type="int",
+                  help="maximum number of reconnect attempts")
+parser.add_option("-t", "--timeout", type="float", default=0,
+                  help="timeout in seconds to wait before exiting (default %default)")
+parser.add_option("-p", "--print", dest="format", default="%(M)s",
+                  help="format string for printing messages (default %default)")
+parser.add_option("-v", dest="verbose", action="store_true",
+                  help="enable logging")
+
+opts, args = parser.parse_args()
+
+if opts.verbose:
+  enable("qpid", DEBUG)
+else:
+  enable("qpid", WARN)
+
+if args:
+  addr = args.pop(0)
+else:
+  parser.error("address is required")
+if opts.forever:
+  timeout = None
+else:
+  timeout = opts.timeout
+
+class Formatter:
+
+  def __init__(self, message):
+    self.message = message
+    self.environ = {"M": self.message,
+                    "P": self.message.properties,
+                    "C": self.message.content}
+
+  def __getitem__(self, st):
+    return eval(st, self.environ)
+
+conn = Connection(opts.broker,
+                  reconnect=opts.reconnect,
+                  reconnect_interval=opts.reconnect_interval,
+                  reconnect_limit=opts.reconnect_limit)
+try:
+  conn.open()
+  ssn = conn.session()
+  rcv = ssn.receiver(addr)
+
+  count = 0
+  while not opts.count or count < opts.count:
+    try:
+      msg = rcv.fetch(timeout=timeout)
+      print opts.format % Formatter(msg)
+      count += 1
+      ssn.acknowledge()
+    except Empty:
+      break
+except ReceiverError, e:
+  print e
+except KeyboardInterrupt:
+  pass
+
+conn.close()