This commit consists of the following:
1) The kafka messaging proxy in Twisted python for adapters
2) Initial implementation and containerization of ponsim OLT adapter
and ponsim ONU adapter
3) Initial submission of request and response facade in both Twisted
python and Go Language
4) Initial implementation of device management and logical device management
in the Core
5) Update to the log module to allow dynamic setting of log level per
package using the gRPC API
6) Bug fixes and minor changes
Change-Id: Ia8f033da84cfd08275335bae9542802415e7bb0f
diff --git a/adapters/common/utils/deferred_utils.py b/adapters/common/utils/deferred_utils.py
new file mode 100644
index 0000000..3c55c1a
--- /dev/null
+++ b/adapters/common/utils/deferred_utils.py
@@ -0,0 +1,56 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed 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.
+from twisted.internet import reactor
+from twisted.internet.defer import Deferred
+from twisted.internet.error import AlreadyCalled
+
+
+class TimeOutError(Exception): pass
+
+
+class DeferredWithTimeout(Deferred):
+ """
+ Deferred with a timeout. If neither the callback nor the errback method
+ is not called within the given time, the deferred's errback will be called
+ with a TimeOutError() exception.
+
+ All other uses are the same as of Deferred().
+ """
+ def __init__(self, timeout=1.0):
+ Deferred.__init__(self)
+ self._timeout = timeout
+ self.timer = reactor.callLater(timeout, self.timed_out)
+
+ def timed_out(self):
+ self.errback(
+ TimeOutError('timed out after {} seconds'.format(self._timeout)))
+
+ def callback(self, result):
+ self._cancel_timer()
+ return Deferred.callback(self, result)
+
+ def errback(self, fail):
+ self._cancel_timer()
+ return Deferred.errback(self, fail)
+
+ def cancel(self):
+ self._cancel_timer()
+ return Deferred.cancel(self)
+
+ def _cancel_timer(self):
+ try:
+ self.timer.cancel()
+ except AlreadyCalled:
+ pass
+