🔍 Code Extractor

A custom exception class that is raised when a requested resource cannot be found in the system.

Purpose

This exception class serves as a specific error type for resource-not-found scenarios in the CDocs document management system. It inherits from Python's base Exception class and provides a semantic way to signal that a requested resource (such as a document, user, or other entity) does not exist. This allows calling code to distinguish resource-not-found errors from other types of exceptions and handle them appropriately.

Source Code

class ResourceNotFoundError(Exception):
    """Exception raised when a requested resource is not found."""
    pass

Parameters

Parameter Details

message: Optional error message string that describes which resource was not found. Inherited from Exception base class. Can include details like resource type, ID, or name.

*args: Variable positional arguments passed to the Exception base class constructor. Typically used to pass error messages or additional context.

**kwargs: Variable keyword arguments passed to the Exception base class constructor (though Exception typically doesn't use kwargs).

Return Value

Instantiation returns a ResourceNotFoundError exception object that can be raised. When raised, it propagates up the call stack until caught by an exception handler. The exception object contains the message and any additional arguments passed during instantiation.

Class Interface

Methods

Attributes

Required Imports

from CDocs.models.exceptions import ResourceNotFoundError

Usage Example

# Raising the exception
from CDocs.models.exceptions import ResourceNotFoundError

def get_document(doc_id):
    document = database.find_document(doc_id)
    if document is None:
        raise ResourceNotFoundError(f"Document with ID {doc_id} not found")
    return document

# Catching the exception
try:
    doc = get_document('12345')
except ResourceNotFoundError as e:
    print(f"Error: {e}")
    # Handle the missing resource case
    return None

Best Practices

• Always provide a descriptive error message when raising this exception to help with debugging and user feedback
• Use this exception specifically for resource-not-found scenarios rather than generic errors
• Catch this exception at appropriate levels in your application to provide meaningful error responses to users
• Consider logging the exception details before re-raising or handling it
• In REST APIs, this exception typically maps to HTTP 404 Not Found responses
• Include relevant context in the error message such as resource type and identifier

Tags

Similar Components

AI-powered semantic similarity - components with related functionality:

• class ResourceNotFoundError 91.3% similar

  Custom exception class that signals when a requested resource cannot be found in the system.

  From: /tf/active/vicechatdev/CDocs/controllers/__init__.py

• class PermissionError_v1 70.6% similar

  Custom exception class raised when a user lacks the necessary permissions to perform a specific action in the CDocs system.

  From: /tf/active/vicechatdev/CDocs/controllers/__init__.py

• class PermissionError 68.0% similar

  Custom exception class that signals when a user attempts an action they lack permission to perform.

  From: /tf/active/vicechatdev/CDocs/controllers/admin_controller.py

• class ValidationError 64.1% similar

  A custom exception class that is raised when input validation fails in the CDocs document management system.

  From: /tf/active/vicechatdev/CDocs/controllers/admin_controller.py

• class DocumentProcessingError 59.8% similar

  Custom exception class for handling errors that occur during document processing operations.

  From: /tf/active/vicechatdev/CDocs/utils/document_processor.py