b0c5c55114
This update is to drop six and all Python 2 support. Signed-off-by: Yasufumi Ogawa <yasufum.o@gmail.com> Change-Id: Ieda51e621ee0477893fd3a0a06e696620c0a8f95
91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import codecs
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import urllib
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import yaml
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from collections import OrderedDict
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from toscaparser.common.exception import ExceptionCollector
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from toscaparser.common.exception import URLException
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from toscaparser.utils.gettextutils import _
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if hasattr(yaml, 'CSafeLoader'):
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yaml_loader = yaml.CSafeLoader
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else:
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yaml_loader = yaml.SafeLoader
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def load_yaml(path, a_file=True):
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f = None
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try:
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if a_file:
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f = codecs.open(path, encoding='utf-8', errors='strict')
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else:
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f = urllib.request.urlopen(path)
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contents = f.read()
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f.close()
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return yaml.load(contents, Loader=yaml_loader)
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except urllib.error.URLError as e:
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if hasattr(e, 'reason'):
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msg = (_('Failed to reach server "%(path)s". Reason is: '
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'%(reason)s.')
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% {'path': path, 'reason': e.reason})
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ExceptionCollector.appendException(URLException(what=msg))
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return
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elif hasattr(e, 'code'):
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msg = (_('The server "%(path)s" couldn\'t fulfill the request. '
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'Error code: "%(code)s".')
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% {'path': path, 'code': e.code})
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ExceptionCollector.appendException(URLException(what=msg))
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return
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except Exception:
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raise
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def simple_parse(tmpl_str):
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try:
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tpl = yaml.load(tmpl_str, Loader=yaml_loader)
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except yaml.YAMLError as yea:
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ExceptionCollector.appendException(ValueError(yea))
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else:
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if tpl is None:
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tpl = {}
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return tpl
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def ordered_load(stream, Loader=yaml.Loader, object_pairs_hook=OrderedDict):
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class OrderedLoader(Loader):
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pass
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def construct_mapping(loader, node):
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loader.flatten_mapping(node)
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return object_pairs_hook(loader.construct_pairs(node))
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OrderedLoader.add_constructor(
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yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
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construct_mapping)
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return yaml.load(stream, OrderedLoader)
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def simple_ordered_parse(tmpl_str):
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try:
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tpl = ordered_load(tmpl_str)
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except yaml.YAMLError as yea:
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ExceptionCollector.appendException(ValueError(yea))
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else:
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if tpl is None:
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tpl = {}
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return tpl
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