# *****************************************************************************
# * Copyright (c) 2011, 2013 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
# *****************************************************************************
import threading
from .. import protocol, channel
class DelegatingEventListener(channel.EventListener):
def __init__(self, _callable):
self._callable = _callable
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
self._callable(self.svc_name, name, *args)
except Exception as x:
protocol.log("Error decoding event data", x)
def _print_event(service, name, *args):
print "Event: %s.%s%s" % (service, name, tuple(args))
def get_event_printer():
return DelegatingEventListener(_print_event)
class EventRecorder(object):
def __init__(self, channel):
self._channel = channel
self._events = []
self._listeners = {}
self._lock = threading.RLock()
self._filter = None
def __del__(self):
if self._channel.state == channel.STATE_OPEN:
self.stop()
def record(self, service, enable=True):
with self._lock:
listener = self._listeners.get(service)
if listener:
if not enable:
protocol.invokeLater(self._channel.removeEventListener,
service, listener)
elif enable:
recorder = self
class Listener(channel.EventListener):
def event(self, name, data):
e = Event(service, name, data)
recorder._event(e)
listener = Listener()
self._listeners[service] = listener
protocol.invokeLater(self._channel.addEventListener, service,
listener)
self._recording = enable
def stop(self, service=None):
if service:
self.record(service, False)
else:
for service in self._listeners.keys():
self.record(service, False)
def get(self):
with self._lock:
events = self._events
self._events = []
return events
def _event(self, e):
with self._lock:
self._events.append(e)
def __str__(self):
events = self.get()
return "\n".join(map(str, events))
__repr__ = __str__
class Event(object):
def __init__(self, service, name, data):
self.service = service
self.name = name
try:
self.args = channel.fromJSONSequence(data)
except Exception as x:
protocol.log("Error decoding event data", x)
def __str__(self):
return "Event: %s.%s%s" % (self.service, self.name, tuple(self.args))
__repr__ = __str__
