mirror of
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80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
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from enum import Enum
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class IndexType(Enum):
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"""Enum of the currently supported index types."""
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HASH = 1
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JSON = 2
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class IndexDefinition:
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"""IndexDefinition is used to define a index definition for automatic
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indexing on Hash or Json update."""
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def __init__(
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self,
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prefix=[],
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filter=None,
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language_field=None,
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language=None,
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score_field=None,
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score=1.0,
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payload_field=None,
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index_type=None,
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):
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self.args = []
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self._append_index_type(index_type)
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self._append_prefix(prefix)
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self._append_filter(filter)
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self._append_language(language_field, language)
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self._append_score(score_field, score)
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self._append_payload(payload_field)
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def _append_index_type(self, index_type):
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"""Append `ON HASH` or `ON JSON` according to the enum."""
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if index_type is IndexType.HASH:
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self.args.extend(["ON", "HASH"])
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elif index_type is IndexType.JSON:
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self.args.extend(["ON", "JSON"])
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elif index_type is not None:
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raise RuntimeError(f"index_type must be one of {list(IndexType)}")
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def _append_prefix(self, prefix):
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"""Append PREFIX."""
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if len(prefix) > 0:
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self.args.append("PREFIX")
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self.args.append(len(prefix))
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for p in prefix:
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self.args.append(p)
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def _append_filter(self, filter):
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"""Append FILTER."""
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if filter is not None:
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self.args.append("FILTER")
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self.args.append(filter)
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def _append_language(self, language_field, language):
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"""Append LANGUAGE_FIELD and LANGUAGE."""
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if language_field is not None:
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self.args.append("LANGUAGE_FIELD")
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self.args.append(language_field)
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if language is not None:
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self.args.append("LANGUAGE")
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self.args.append(language)
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def _append_score(self, score_field, score):
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"""Append SCORE_FIELD and SCORE."""
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if score_field is not None:
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self.args.append("SCORE_FIELD")
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self.args.append(score_field)
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if score is not None:
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self.args.append("SCORE")
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self.args.append(score)
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def _append_payload(self, payload_field):
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"""Append PAYLOAD_FIELD."""
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if payload_field is not None:
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self.args.append("PAYLOAD_FIELD")
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self.args.append(payload_field)
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