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Original file line number | Diff line number | Diff line change |
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import json | ||
import logging | ||
import os | ||
from typing import Tuple | ||
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from flask import Flask, request, jsonify, Response | ||
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from analyzer_engine.csv_analyzer_engine import CSVAnalyzerEngine | ||
from config.nlp_engine_config import FlairNLPEngine | ||
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DEFAULT_PORT = "3000" | ||
NLP_ENGINE = "flair/ner-english-large" | ||
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class Server: | ||
"""HTTP Server for calling Presidio Analyzer.""" | ||
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def __init__(self): | ||
self.logger = logging.getLogger("pii-detection-anonymizer") | ||
self.logger.setLevel(os.environ.get("LOG_LEVEL", self.logger.level)) | ||
self.app = Flask(__name__) | ||
self.logger.info("Starting analyzer engine") | ||
nlp_engine = FlairNLPEngine(NLP_ENGINE) | ||
self.engine = CSVAnalyzerEngine(nlp_engine) | ||
self.logger.info("Started analyzer engine") | ||
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@self.app.route("/health") | ||
def health() -> str: | ||
"""Return basic health probe result.""" | ||
return "PII detection and anonymizer service is up" | ||
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@self.app.route("/analyze", methods=["POST"]) | ||
def analyze() -> Tuple[str, int]: | ||
"""Execute the analyzer function.""" | ||
# Parse the request params | ||
try: | ||
req_json = request.get_json() | ||
if not req_json.get("text"): | ||
raise Exception("No text provided") | ||
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if not req_json.get("language"): | ||
raise Exception("No language provided") | ||
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recognizer_result_list = self.engine.analyze_text( | ||
text=req_json.get("text"), | ||
language=req_json.get("language") | ||
) | ||
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return Response( | ||
json.dumps( | ||
recognizer_result_list, | ||
default=lambda o: o.to_dict(), | ||
sort_keys=True, | ||
), | ||
content_type="application/json", | ||
) | ||
except TypeError as te: | ||
error_msg = ( | ||
f"Failed to parse /analyze request " | ||
f"for AnalyzerEngine.analyze(). {te.args[0]}" | ||
) | ||
self.logger.error(error_msg) | ||
return jsonify(error=error_msg), 400 | ||
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except Exception as e: | ||
self.logger.error( | ||
f"A fatal error occurred during execution of " | ||
f"AnalyzerEngine.analyze(). {e}" | ||
) | ||
return jsonify(error=e.args[0]), 500 | ||
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if __name__ == "__main__": | ||
port = int(os.environ.get("PORT", DEFAULT_PORT)) | ||
server = Server() | ||
server.app.run(host="0.0.0.0", port=port) |
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