52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
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import urllib.parse
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class Concept(object):
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def __init__(self, context, data):
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self.context = context
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self.data = {self.canonical_key(k):v for (k, v) in data.items()}
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def get(self, key, *args, **kwargs):
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return self.data.get(self.canonical_key(key, *args, **kwargs))
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def __getitem__(self, key):
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return self.data[self.canonical_key(key)]
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def __setitem__(self, key, value):
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self.data[self.canonical_key(key)] = value
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def __contains__(self, key):
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return self.canonical_key(key) in self.data
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def __delitem__(self, key):
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del self.data[self.canonical_key(key)]
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def canonical_key(self, key):
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if not isinstance(key, str):
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return key
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elif key.startswith('@'):
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return key
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elif key.startswith(self.context):
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return key
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return self.context + key
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def determine_concepts_internal(json, context, outputs):
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if isinstance(json, list):
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for m in json:
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determine_concepts_internal(m, context, outputs)
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return
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assert isinstance(json, dict)
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context = json.get('@context', context)
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assert urllib.parse.urlparse(context).netloc == 'schema.org'
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if '@graph' in json:
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determine_concepts_internal(json['@graph'], context, outputs)
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else:
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outputs.append(Concept(context, json))
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def determine_concepts(json):
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concepts = []
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determine_concepts_internal(json, '', concepts)
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return concepts
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