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-rw-r--r--resources/libraries/python/search/NdrPdrResult.py65
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diff --git a/resources/libraries/python/search/NdrPdrResult.py b/resources/libraries/python/search/NdrPdrResult.py
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+# Copyright (c) 2018 Cisco and/or its affiliates.
+# 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.
+
+"""Module defining NdrPdrResult class."""
+
+from .ReceiveRateInterval import ReceiveRateInterval
+
+
+class NdrPdrResult(object):
+ """Two measurement intervals, return value of search algorithms.
+
+ Partial fraction is NOT part of the result. Pdr interval should be valid
+ for all partial fractions implied by the interval."""
+
+ def __init__(self, ndr_interval, pdr_interval):
+ """Store the measured intervals after checking argument types.
+
+ :param ndr_interval: Object containing data for NDR part of the result.
+ :param pdr_interval: Object containing data for PDR part of the result.
+ :type ndr_interval: ReceiveRateInterval
+ :type pdr_interval: ReceiveRateInterval
+ """
+ # TODO: Type checking is not very pythonic,
+ # perhaps users can fix wrong usage without it?
+ if not isinstance(ndr_interval, ReceiveRateInterval):
+ raise TypeError("ndr_interval, is not a ReceiveRateInterval: "
+ "{ndr!r}".format(ndr=ndr_interval))
+ if not isinstance(pdr_interval, ReceiveRateInterval):
+ raise TypeError("pdr_interval, is not a ReceiveRateInterval: "
+ "{pdr!r}".format(pdr=pdr_interval))
+ self.ndr_interval = ndr_interval
+ self.pdr_interval = pdr_interval
+
+ def width_in_goals(self, relative_width_goal):
+ """Return a debug string related to current widths in logarithmic scale.
+
+ :param relative_width_goal: Upper bound times this is the goal
+ difference between upper bound and lower bound.
+ :type relative_width_goal: float
+ :returns: Message containing NDR and PDR widths in goals.
+ :rtype: str
+ """
+ return "ndr {ndr_in_goals}; pdr {pdr_in_goals}".format(
+ ndr_in_goals=self.ndr_interval.width_in_goals(relative_width_goal),
+ pdr_in_goals=self.pdr_interval.width_in_goals(relative_width_goal))
+
+ def __str__(self):
+ """Return string as tuple of named values."""
+ return "NDR={ndr!s};PDR={pdr!s}".format(
+ ndr=self.ndr_interval, pdr=self.pdr_interval)
+
+ def __repr__(self):
+ """Return string evaluable as a constructor call."""
+ return "NdrPdrResult(ndr_interval={ndr!r},pdr_interval={pdr!r})".format(
+ ndr=self.ndr_interval, pdr=self.pdr_interval)