1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
# *****************************************************************************
# * Copyright (c) 2011, 2013-2014 Wind River Systems, Inc. and others.
# * All rights reserved. This program and the accompanying materials
# * are made available under the terms of the Eclipse Public License v1.0
# * which accompanies this distribution, and is available at
# * http://www.eclipse.org/legal/epl-v10.html
# *
# * Contributors:
# * Wind River Systems - initial API and implementation
# *****************************************************************************
from .. import pathmap
from ... import channel
from ...channel.Command import Command
class ChannelEventListener(channel.EventListener):
def __init__(self, service, listener):
self.service = service
self.listener = listener
def event(self, name, data):
try:
if name == "changed":
self.listener.changed()
except Exception as x:
import sys
x.tb = sys.exc_info()[2]
self.service.channel.terminate(x)
class PathMapProxy(pathmap.PathMapService):
def __init__(self, channel):
self.channel = channel
self.listeners = {}
def get(self, done):
done = self._makeCallback(done)
service = self
class GetCommand(Command):
def __init__(self):
super(GetCommand, self).__init__(service.channel, service,
"get", None)
def done(self, error, args):
pmMap = None
if not error:
assert len(args) == 2
error = self.toError(args[0])
if args[1]:
pmMap = _toPathMap(args[1])
done.doneGet(self.token, error, pmMap)
return GetCommand().token
def set(self, pmMap, done):
if isinstance(pmMap, pathmap.PathMapRule) or isinstance(pmMap, dict):
pmMap = (pmMap,)
done = self._makeCallback(done)
service = self
class SetCommand(Command):
def __init__(self):
super(SetCommand, self).__init__(service.channel, service,
"set", (pmMap,))
def done(self, error, args):
if not error:
assert len(args) == 1
error = self.toError(args[0])
done.doneSet(self.token, error)
return SetCommand().token
def addListener(self, listener):
"""Add a pathmap listener to the connected channel."""
l = ChannelEventListener(self, listener)
self.channel.addEventListener(self, l)
self.listeners[listener] = l
def removeListener(self, listener):
"""Remove given pathmap listener from the connected channel."""
l = self.listeners.get(listener)
if l:
del self.listeners[listener]
self.channel.removeEventListener(self, l)
def _toPathMap(o):
if o is None:
return None
return map(_toPathMapRule, o)
def _toPathMapRule(o):
if o is None:
return None
return pathmap.PathMapRule(o)
|
