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Stephen Diehl
19 lines
550 B
Python
19 lines
550 B
Python
from zipline.transforms import BaseTransform
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from zipline.protocol import FEED_FRAME, TRANSFORM_TYPE
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class PassthroughTransform(BaseTransform):
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"""
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A bypass transform passes data through unchanged.
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"""
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def init(self):
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self.props = { 'name': 'PASSTHROUGH' }
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#TODO, could save some cycles by skipping the _UNFRAME call
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# and just setting value to original msg string.
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def transform(self, event):
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return {
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'name' : TRANSFORM_TYPE.PASSTHROUGH,
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'value' : FEED_FRAME(event)
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}
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