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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.
+
+import math
+
+from ClassifiedBitCountingMetadata import ClassifiedBitCountingMetadata
+
+
+class ClassifiedMetadataFactory(object):
+ """Class for factory which adds classification to bit counting metadata."""
+
+ @staticmethod
+ def with_classification(metadata, classification):
+ """Return new metadata object with added classification.
+
+ TODO: Is there a way to add classification to any metadata,
+ without messing up constructors and __repr__()?
+
+ FIXME: Factories take raw resources. Find a name for the thing
+ which takes semi-finished products. Transformer?
+
+ :param metadata: Existing metadata without classification.
+ :param classification: Arbitrary object classifying this group.
+ :type metadata: BitCountingMetadata
+ :type classification: object
+ :returns: The metadata with added classification.
+ :rtype: ClassifiedBitCountingMetadata
+ """
+ return ClassifiedBitCountingMetadata(
+ max_value=metadata.max_value, size=metadata.size, avg=metadata.avg,
+ stdev=metadata.stdev, prev_avg=metadata.prev_avg,
+ classification=classification)