def set(self, path, data, version=-1):
"""Set the data for the node of the given path.
Set the data for the node of the given path if such a node exists and
the given version matches the version of the node (if the given version
is -1 (default), node version is ignored).
This operation, if successful, will trigger all the watches on the node
of the given path left by `get()` calls.
The maximum allowable size of the data array is 1 MB (1,048,576 bytes).
Arrays larger than this will cause a `ZooKeeperExecption` to be thrown.
:Parameters:
- `path`: path of the node
- `data`: data to set
- `version`: expected version (-1 (default) ignored)
:Returns:
Stat object for the node
:Exceptions:
- `NoNodeException`: thrown if no node with the given path exists
- `BadVersionException`: thrown if the version does not match
"""
stat_dict = _zookeeper.set2(self.zk_handle, path, data, version)
return Stat(**stat_dict)
def test_sync_getset(self):
self.assertEqual(self.connected, True, "Not connected!")
(data,stat) = zookeeper.get(self.handle, "/zk-python-getsettest", None)
self.assertEqual(data, "on", "Data is not 'on' as expected: " + data)
ret = zookeeper.set(self.handle, "/zk-python-getsettest",
"off", stat["version"])
(data,stat) = zookeeper.get(self.handle, "/zk-python-getsettest", None)
self.assertEqual(data, "off", "Data is not 'off' as expected: " + data)
self.assertRaises(zookeeper.BadVersionException,
zookeeper.set,
self.handle,
"/zk-python-getsettest",
"test",
stat["version"]+1)
stat2 = zookeeper.set2(self.handle, "/zk-python-getsettest",
"set2", stat["version"])
self.assertNotEqual(stat2, None, "set2 call failed, return should not be None")
self.assertEqual(stat2["numChildren"], 0,
"set2 call failed, numChildren not 0 in set2 call")
(data,stat) = zookeeper.get(self.handle, "/zk-python-getsettest", None)
self.assertEqual(data, "set2", "Data is not 'set2' as expected: " + data)