Upload handler.py
#20
by
maul1993
- opened
- handler.py +41 -0
handler.py
ADDED
@@ -0,0 +1,41 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
import torch
|
2 |
+
from transformers import AutoModel, AutoTokenizer
|
3 |
+
|
4 |
+
class ModelHandler:
|
5 |
+
def __init__(self):
|
6 |
+
self.model = None
|
7 |
+
self.tokenizer = None
|
8 |
+
|
9 |
+
def initialize(self, model_path):
|
10 |
+
"""Load model and tokenizer."""
|
11 |
+
self.tokenizer = AutoTokenizer.from_pretrained(model_path)
|
12 |
+
self.model = AutoModel.from_pretrained(model_path)
|
13 |
+
|
14 |
+
def preprocess(self, data):
|
15 |
+
"""Preprocess input data."""
|
16 |
+
text = data.get("text", "")
|
17 |
+
inputs = self.tokenizer(text, return_tensors="pt")
|
18 |
+
return inputs
|
19 |
+
|
20 |
+
def inference(self, inputs):
|
21 |
+
"""Run inference on the model."""
|
22 |
+
outputs = self.model(**inputs)
|
23 |
+
return outputs
|
24 |
+
|
25 |
+
def postprocess(self, outputs):
|
26 |
+
"""Postprocess model output."""
|
27 |
+
return {"output": outputs.logits.tolist()}
|
28 |
+
|
29 |
+
_handler = ModelHandler()
|
30 |
+
|
31 |
+
def handle(data, context):
|
32 |
+
if not _handler.model:
|
33 |
+
model_path = context.system_properties.get("model_dir")
|
34 |
+
_handler.initialize(model_path)
|
35 |
+
|
36 |
+
if data is None:
|
37 |
+
return {"error": "No input data"}
|
38 |
+
|
39 |
+
inputs = _handler.preprocess(data[0])
|
40 |
+
outputs = _handler.inference(inputs)
|
41 |
+
return _handler.postprocess(outputs)
|