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#!/usr/bin/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 getopt
import sys
import simplejson
import urllib2
from base64 import b64decode
printdata = False
fullpath = False
def dump_node(url, depth):
"""Dump the node, then dump children recursively
Arguments:
- `url`:
- `depth`:
"""
req = urllib2.urlopen(url)
resp = simplejson.load(req)
if 'Error' in resp:
raise resp['Error']
if fullpath:
name = resp['path']
else:
name = '/' + resp['path'].split('/')[-1]
data64 = resp.get('data64')
dataUtf8 = resp.get('dataUtf8')
if data64 and printdata:
data = b64decode(data64)
print '%(indent)s%(name)s = b64(%(data64)s) str(%(data)s)' % \
{'indent':' '*2*depth, 'name':name, 'data64':data64, 'data':data}
elif dataUtf8 and printdata:
print '%(indent)s%(name)s = %(data)s' % \
{'indent':' '*2*depth, 'name':name, 'data':dataUtf8}
else:
print '%(indent)s%(name)s' % {'indent':' '*2*depth, 'name':name}
req = urllib2.urlopen(resp['uri'] + '?view=children')
resp = simplejson.load(req)
for child in resp.get('children', []):
dump_node(resp['child_uri_template']
.replace("{child}", urllib2.quote(child)),
depth + 1)
def zk_dump_tree(url, root):
"""Dump the tree starting at the roota
Arguments:
- `root`:
"""
dump_node(url + '/znodes/v1' + root, 0)
def usage():
"""Usage
"""
print 'Usage: zk_dump_tree.py [-h|--help -u|--url=url -d|--data -f|--fullpath -r|--root=root]'
print ' where url is the url of the rest server, data is whether to'
print ' to include node data on output, root is the znode root'
print ' fullpath prints the full node path (useful for copy/paste)'
if __name__ == '__main__':
try:
opts, args = getopt.getopt(sys.argv[1:],
"hu:dfr:", ["help", "url=", "data", "fullpath", "root="])
except getopt.GetoptError, err:
# print help information and exit:
print str(err) # will print something like "option -a not recognized"
usage()
sys.exit(2)
url ='http://localhost:9998'
root = '/'
for o, a in opts:
if o in ("-d", "--data"):
printdata = True
elif o in ("-h", "--help"):
usage()
sys.exit()
elif o in ("-u", "--url"):
url = a
elif o in ("-r", "--root"):
root = a
elif o in ("-f", "--fullpath"):
fullpath = True
else:
assert False, "unhandled option"
print 'Accessing REST server at ' + url
zk_dump_tree(url, root)
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