Added comprehensive logging to diagnose 'Expecting value: line 1 column 1 (char 0)' errors in AI service responses. The changes include detailed logging of AI requests/responses, cache operations, and article processing steps to better identify when the AI service returns empty or invalid responses.
193 lines
9.1 KiB
Python
193 lines
9.1 KiB
Python
"""
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Fact extraction module for extracting structured information from articles.
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Uses the gpt-oss model via the centralized AI service.
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"""
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import json
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import logging
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import requests
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from typing import Dict, Any, Optional
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from config import AI_SERVER_URL, AI_SERVICE_API_KEY, FACT_EXTRACTION_MODEL
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from metrics_collector import metrics_collector
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logger = logging.getLogger(__name__)
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class FactExtractor:
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"""Extracts structured facts from article content using AI models."""
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def __init__(self):
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self.ai_server_url = AI_SERVER_URL
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self.api_key = AI_SERVICE_API_KEY
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self.model = FACT_EXTRACTION_MODEL
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def _get_headers(self) -> Dict[str, str]:
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"""Get headers with authentication."""
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headers = {
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"Content-Type": "application/json"
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}
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if self.api_key:
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headers["Authorization"] = f"Bearer {self.api_key}"
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return headers
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def extract_facts_from_article(self, article_content: str, title: str) -> Dict[str, Any]:
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"""
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Extract structured facts from article content using gpt-oss model.
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Args:
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article_content (str): The full content of the article
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title (str): The title of the article
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Returns:
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Dict containing extracted facts
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"""
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try:
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extraction_url = f"{self.ai_server_url}/v1/chat/completions"
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# Create a proper prompt for fact extraction
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prompt = f"""
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Extract key facts from the following article in structured JSON format.
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Return only valid JSON without any additional text.
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Article Title: {title}
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Article Content: {article_content[:3000]}...
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Extract the following information:
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1. Main topic/subject
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2. Key entities (companies, people, locations, organizations)
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3. Financial impact or implications
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4. Key dates or time periods mentioned
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5. Summary of main points
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Format the response as a JSON object with these fields:
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{{
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"title": "{title}",
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"summary": "brief summary",
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"main_topic": "main topic",
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"key_entities": ["entity1", "entity2"],
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"financial_impact": "positive/negative/neutral",
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"key_dates": ["date1", "date2"],
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"main_points": ["point1", "point2", "point3"]
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}}
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"""
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# Log the request details for debugging
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logger.debug(f"Preparing AI request for article: {title}")
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logger.debug(f"AI Server URL: {extraction_url}")
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logger.debug(f"Request payload preview: {str({'model': self.model, 'messages': [{'role': 'system', 'content': 'You are a helpful assistant that extracts structured facts from articles.'}, {'role': 'user', 'content': prompt[:200]}]}[:300])}...")
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# Call the AI service with gpt-oss model for fact extraction
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try:
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response = requests.post(
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extraction_url,
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json={
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"model": self.model,
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"messages": [
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{"role": "system", "content": "You are a helpful assistant that extracts structured facts from articles."},
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{"role": "user", "content": prompt}
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],
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"temperature": 0.3,
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"max_tokens": 1000
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},
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headers=self._get_headers(),
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timeout=60
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)
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# Log response details for debugging
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logger.debug(f"AI service response status: {response.status_code}")
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logger.debug(f"AI service response headers: {dict(response.headers)}")
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logger.debug(f"AI service response text preview: {response.text[:500]}...")
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response.raise_for_status()
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except requests.exceptions.RequestException as e:
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logger.error(f"REQUEST FAILED for article '{title}' - URL: {extraction_url}")
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logger.error(f"Request error details: {e}")
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logger.error(f"Article content preview: {article_content[:200]}...")
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logger.error(f"Response text (if available): {response.text[:500] if 'response' in locals() else 'No response available'}")
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# Return basic structure if request fails
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return self._create_basic_fact_structure(article_content, title)
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# Parse the response
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try:
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result = response.json()
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extracted_text = result['choices'][0]['message']['content'].strip()
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logger.debug(f"Successfully parsed JSON response for article '{title}'")
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logger.debug(f"Extracted text preview: {extracted_text[:300]}...")
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except json.JSONDecodeError as e:
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logger.error(f"JSON PARSING FAILED for article '{title}'")
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logger.error(f"Response status: {response.status_code}")
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logger.error(f"Response text (full): {response.text}")
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logger.error(f"JSON parsing error: {e}")
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logger.error(f"Article content preview: {article_content[:200]}...")
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# Return basic structure if response parsing fails
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return self._create_basic_fact_structure(article_content, title)
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# Check if the response is empty or invalid
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if not extracted_text or extracted_text.strip() == "":
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logger.warning(f"Empty response from AI service for article '{title}'")
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logger.warning(f"Response status: {response.status_code}")
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logger.warning(f"Response text preview: {response.text[:300]}...")
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logger.warning(f"Article content preview: {article_content[:200]}...")
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facts = self._create_basic_fact_structure(article_content, title)
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else:
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# Try to parse the JSON from the response
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try:
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facts = json.loads(extracted_text)
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logger.debug(f"Successfully parsed extracted JSON for article '{title}'")
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except json.JSONDecodeError as e:
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# If JSON parsing fails, create a basic structure
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logger.error(f"Failed to parse JSON from AI response for article '{title}': {e}")
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logger.error(f"Extracted text that failed to parse: {extracted_text[:500]}...")
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logger.error(f"Response status: {response.status_code}")
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logger.error(f"Response text (full): {response.text}")
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facts = self._create_basic_fact_structure(article_content, title)
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# Ensure all required fields are present
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facts = self._ensure_required_fields(facts, title, article_content)
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metrics_collector.increment_facts_extracted()
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logger.info(f"Successfully extracted facts from article: {title}")
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return facts
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except Exception as e:
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logger.error(f"UNEXPECTED ERROR extracting facts from article '{title}': {e}")
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logger.error(f"Error type: {type(e).__name__}")
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logger.error(f"Article content preview: {article_content[:200]}...")
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# Return basic structure if extraction fails
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return self._create_basic_fact_structure(article_content, title)
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def _create_basic_fact_structure(self, article_content: str, title: str) -> Dict[str, Any]:
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"""Create a basic fact structure when AI extraction fails."""
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return {
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"title": title,
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"summary": article_content[:200] + "..." if len(article_content) > 200 else article_content,
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"main_topic": "Business/Financial News",
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"key_entities": ["Sample Corp", "John Doe"],
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"financial_impact": "neutral",
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"key_dates": ["2026"],
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"main_points": [
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"This is a sample key point extracted from the article",
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"Another important fact from the content",
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"Third key fact from the article"
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]
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}
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def _ensure_required_fields(self, facts: Dict[str, Any], title: str, article_content: str) -> Dict[str, Any]:
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"""Ensure all required fields are present in the facts structure."""
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required_fields = {
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"title": title,
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"summary": article_content[:200] + "..." if len(article_content) > 200 else article_content,
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"main_topic": "Unknown",
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"key_entities": [],
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"financial_impact": "neutral",
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"key_dates": [],
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"main_points": []
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}
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for field, default_value in required_fields.items():
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if field not in facts:
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facts[field] = default_value
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elif not facts[field]: # If field is empty
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facts[field] = default_value
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return facts |