soorena62
61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
import os
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import csv
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import json
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from datetime import datetime
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from workflow.module import Module
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from workflow.io_port import InPort, AnyType
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# Codes Go Below:
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class Writer(Module):
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"""
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Generic Writer node.
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Saves any data to disk in the desired format.
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"""
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def __init__(self):
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super().__init__("Writer")
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# Accept any data type
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self.addInPort(InPort("data", AnyType()))
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def run(self, context):
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data = context.get_asset_value("Writer.data")
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# Metadata from Model layer
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output_dir = self.get_meta("output_dir", "results")
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file_format = self.get_meta("format", "csv")
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os.makedirs(output_dir, exist_ok=True)
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ts = datetime.now().strftime("%Y%m%d_%H%M%S")
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filename = f"output_{ts}.{file_format}"
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path = os.path.join(output_dir, filename)
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# Save based on format
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if file_format == "csv":
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with open(path, "w", newline="", encoding="utf-8") as f:
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w = csv.writer(f)
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if isinstance(data, list):
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if isinstance(data[0], dict):
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w.writerow(data[0].keys())
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for row in data:
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w.writerow(row.values())
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else:
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for row in data:
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w.writerow([row])
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else:
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w.writerow([data])
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elif file_format == "json":
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with open(path, "w", encoding="utf-8") as f:
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json.dump(data, f, indent=2)
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elif file_format == "txt":
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with open(path, "w", encoding="utf-8") as f:
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f.write(str(data))
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else:
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raise ValueError(f"Unsupported format: {file_format}")
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return {"path": path}
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