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Validates that the email forwarding service can retrieve operational statistics by instantiating an EmailHandler and calling its get_stats() method.

Purpose

This function serves as a health check or diagnostic tool to verify that the email forwarding service is properly configured and can successfully retrieve service statistics. It's typically used during system startup, testing, or monitoring to ensure the EmailHandler component is functioning correctly. The function dynamically adds the 'src' directory to the Python path to enable imports, creates an EmailHandler instance, retrieves statistics, and prints the results.

Source Code

def check_service_stats():
    """Check if we can get service statistics."""
    try:
        print("\nChecking service functionality...")
        
        # Add the src directory to path for imports
        sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'src'))
        
        from forwarder.email_handler import EmailHandler
        
        # Create a handler to check stats
        handler = EmailHandler()
        stats = handler.get_stats()
        print(f"✓ Service stats: {stats}")
        
        return True
        
    except Exception as e:
        print(f"✗ Failed to check service stats: {e}")
        return False

Return Value

Returns a boolean value: True if service statistics were successfully retrieved and printed, False if any exception occurred during the process. The function also prints status messages to stdout indicating success (✓) or failure (✗) along with the statistics or error details.

Dependencies

• sys
• os
• forwarder.email_handler

Required Imports

import sys
import os

Conditional/Optional Imports

These imports are only needed under specific conditions:

from forwarder.email_handler import EmailHandler

Usage Example

# Assuming this function is in a file called diagnostics.py
# and the directory structure is:
# project/
#   diagnostics.py
#   src/
#     forwarder/
#       email_handler.py

import sys
import os

def check_service_stats():
    """Check if we can get service statistics."""
    try:
        print("\nChecking service functionality...")
        sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'src'))
        from forwarder.email_handler import EmailHandler
        handler = EmailHandler()
        stats = handler.get_stats()
        print(f"✓ Service stats: {stats}")
        return True
    except Exception as e:
        print(f"✗ Failed to check service stats: {e}")
        return False

# Run the check
if __name__ == "__main__":
    success = check_service_stats()
    if success:
        print("Service is operational")
    else:
        print("Service check failed")

Best Practices

• This function modifies sys.path which can have side effects; consider using it only in diagnostic/testing contexts
• The function assumes a specific directory structure (src/forwarder/email_handler.py) relative to the script location
• Error handling is broad (catches all exceptions); consider logging specific exception types for better debugging
• The function prints directly to stdout; consider using a logging framework for production environments
• Ensure EmailHandler is properly initialized with required configuration before calling get_stats()
• The sys.path modification persists after the function returns; consider removing the added path if needed
• This function is best used as part of a larger diagnostic or testing suite rather than in production code paths

Tags

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