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33 lines
1014 B
33 lines
1014 B
from typing import Optional |
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import pandas as pd |
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class DataBucket: |
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def __init__(self, max_size: Optional[int] = None): |
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self.set_max_size(max_size) |
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self.data = pd.DataFrame([], columns=['timestamp', 'value']) |
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def append_data(self, data: pd.DataFrame) -> None: |
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self.data = self.data.append(data, ignore_index=True) |
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if self.max_size == None: |
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return |
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bucket_size = self.get_current_size() |
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if bucket_size > self.max_size: |
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extra_data_count = bucket_size - self.max_size |
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self.drop_data(extra_data_count) |
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def drop_data(self, count: int) -> None: |
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if count > 0: |
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self.data = self.data.iloc[count:] |
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def set_max_size(self, max_size: Optional[int] = None) -> None: |
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if max_size is not None and max_size < 0: |
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raise Exception(f'Can`t set negative max size for bucket: {max_size}') |
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self.max_size = max_size |
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def get_current_size(self) -> int: |
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return len(self.data)
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