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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 os
import getopt
import sys
import locale
from qmf.console import Session
_host = "localhost"
_stopId = None
_stopAll = False
_force = False
def Usage ():
print "Usage: qpid-cluster [OPTIONS] [broker-addr]"
print
print " broker-addr is in the form: [username/password@] hostname | ip-address [:<port>]"
print " ex: localhost, 10.1.1.7:10000, broker-host:10000, guest/guest@localhost"
print
print "Options:"
print " -s [--stop] ID Stop one member of the cluster by its ID"
print " -k [--all-stop] Shut down the whole cluster"
print " -f [--force] Suppress the 'are-you-sure?' prompt"
print
sys.exit (1)
class BrokerManager:
def __init__(self):
self.brokerName = None
self.qmf = None
self.broker = None
def SetBroker(self, brokerUrl):
self.url = brokerUrl
self.qmf = Session()
self.broker = self.qmf.addBroker(brokerUrl)
agents = self.qmf.getAgents()
for a in agents:
if a.getAgentBank() == 0:
self.brokerAgent = a
def Disconnect(self):
if self.broker:
self.qmf.delBroker(self.broker)
def overview(self):
packages = self.qmf.getPackages()
if "org.apache.qpid.cluster" not in packages:
print "Clustering is not installed on the broker."
sys.exit(0)
clusters = self.qmf.getObjects(_class="cluster", _agent=self.brokerAgent)
if len(clusters) == 0:
print "Clustering is installed but not enabled on the broker."
sys.exit(0)
cluster = clusters[0]
myUrl = cluster.publishedURL
memberList = cluster.members.split(";")
idList = cluster.memberIDs.split(";")
print " Cluster Name: %s" % cluster.clusterName
print "Cluster Status: %s" % cluster.status
print " Cluster Size: %d" % cluster.clusterSize
print " Members: ID=%s URL=%s" % (idList[0], memberList[0])
for idx in range(1,len(idList)):
print " : ID=%s URL=%s" % (idList[idx], memberList[idx])
def stopMember(self, id):
clusters = self.qmf.getObjects(_class="cluster", _agent=self.brokerAgent)
if len(clusters) == 0:
print "Clustering is installed but not enabled on the broker."
sys.exit(0)
cluster = clusters[0]
idList = cluster.memberIDs.split(";")
if id not in idList:
print "No member with matching ID found"
sys.exit(1)
if not _force:
prompt = "Warning: "
if len(idList) == 1:
prompt += "This command will shut down the last running cluster member."
else:
prompt += "This command will shut down a cluster member."
prompt += " Are you sure? [N]: "
confirm = raw_input(prompt)
if len(confirm) == 0 or confirm[0].upper() != 'Y':
print "Operation canceled"
sys.exit(1)
cluster.stopClusterNode(id)
def stopAll(self):
clusters = self.qmf.getObjects(_class="cluster", _agent=self.brokerAgent)
if len(clusters) == 0:
print "Clustering is installed but not enabled on the broker."
sys.exit(0)
if not _force:
prompt = "Warning: This command will shut down the entire cluster."
prompt += " Are you sure? [N]: "
confirm = raw_input(prompt)
if len(confirm) == 0 or confirm[0].upper() != 'Y':
print "Operation canceled"
sys.exit(1)
cluster = clusters[0]
cluster.stopFullCluster()
##
## Main Program
##
try:
longOpts = ("stop=", "all-stop", "force")
(optlist, encArgs) = getopt.gnu_getopt (sys.argv[1:], "s:kf", longOpts)
except:
Usage ()
try:
encoding = locale.getpreferredencoding()
cargs = [a.decode(encoding) for a in encArgs]
except:
cargs = encArgs
for opt in optlist:
if opt[0] == "-s" or opt[0] == "--stop":
_stopId = opt[1]
if opt[0] == "-k" or opt[0] == "--all-stop":
_stopAll = True
if opt[0] == "-f" or opt[0] == "--force":
_force = True
nargs = len(cargs)
bm = BrokerManager()
if nargs == 1:
_host = cargs[0]
try:
bm.SetBroker(_host)
if _stopId:
bm.stopMember(_stopId)
elif _stopAll:
bm.stopAll()
else:
bm.overview()
except KeyboardInterrupt:
print
except Exception,e:
if e.__repr__().find("connection aborted") > 0:
# we expect this when asking the connected broker to shut down
sys.exit(0)
print "Failed:", e.args
sys.exit(1)
bm.Disconnect()
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