b2ad8f082e
This patch removes the use of utils.purge since it is no longer needed in light of Falcon's relatively new "store" feature, which causes the target dict to only receive the value of the param if it is found in the request, thus avoiding clobbering default kwarg values, which was the original intent of utils.purge. As a bonus, this approach is also ~40% faster. Change-Id: I6b3d82b1f700045e50b3131902b2c7b6dc6ea13c Implements: blueprint v1-obvious-optimizations
57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
# Copyright (c) 2013 Rackspace, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import simplejson as json
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class MalformedJSON(ValueError):
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"""JSON string is not valid."""
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pass
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class OverflowedJSONInteger(OverflowError):
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"""JSON integer is too large."""
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pass
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def _json_int(s):
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"""Parse a string as a base 10 64-bit signed integer."""
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i = int(s)
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if not (int(-2 ** 63) <= i <= int(2 ** 63 - 1)):
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raise OverflowedJSONInteger()
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return i
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def read_json(stream, len):
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"""Like json.load, but converts ValueError to MalformedJSON upon failure.
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:param stream: a file-like object
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:param len: the number of bytes to read from stream
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"""
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try:
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return json.loads(stream.read(len), parse_int=_json_int)
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except ValueError as ex:
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raise MalformedJSON(ex)
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def to_json(obj):
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"""Like json.dumps, but outputs a UTF-8 encoded string.
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:param obj: a JSON-serializable object
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"""
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return json.dumps(obj, ensure_ascii=False)
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