feat: Implement comprehensive progress callback system
- Created callback interfaces (ProgressCallback, ErrorCallback, CompletionCallback) - Defined rich context objects (ProgressContext, ErrorContext, CompletionContext) - Implemented CallbackManager for managing multiple callbacks - Integrated callbacks into SerieScanner for scan progress reporting - Enhanced SeriesApp with download progress tracking via callbacks - Added error and completion notifications throughout core operations - Maintained backward compatibility with legacy callback system - Created 22 comprehensive unit tests with 100% pass rate - Updated infrastructure.md with callback system documentation - Removed completed tasks from instructions.md The callback system provides: - Real-time progress updates with percentage and phase tracking - Comprehensive error reporting with recovery information - Operation completion notifications with statistics - Thread-safe callback execution with exception handling - Support for multiple simultaneous callbacks per type
This commit is contained in:
@@ -1,59 +1,257 @@
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"""
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SerieScanner - Scans directories for anime series and missing episodes.
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This module provides functionality to scan anime directories, identify
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missing episodes, and report progress through callback interfaces.
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"""
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import logging
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import os
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import re
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import logging
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from .entities.series import Serie
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import traceback
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from ..infrastructure.logging.GlobalLogger import error_logger, noKeyFound_logger
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from .exceptions.Exceptions import NoKeyFoundException, MatchNotFoundError
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from .providers.base_provider import Loader
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import uuid
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from typing import Callable, Optional
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from src.core.entities.series import Serie
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from src.core.exceptions.Exceptions import MatchNotFoundError, NoKeyFoundException
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from src.core.interfaces.callbacks import (
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CallbackManager,
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CompletionContext,
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ErrorContext,
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OperationType,
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ProgressContext,
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ProgressPhase,
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)
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from src.core.providers.base_provider import Loader
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from src.infrastructure.logging.GlobalLogger import error_logger, noKeyFound_logger
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logger = logging.getLogger(__name__)
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class SerieScanner:
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def __init__(self, basePath: str, loader: Loader):
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"""
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Scans directories for anime series and identifies missing episodes.
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Supports progress callbacks for real-time scanning updates.
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"""
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def __init__(
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self,
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basePath: str,
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loader: Loader,
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callback_manager: Optional[CallbackManager] = None
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):
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"""
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Initialize the SerieScanner.
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Args:
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basePath: Base directory containing anime series
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loader: Loader instance for fetching series information
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callback_manager: Optional callback manager for progress updates
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"""
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self.directory = basePath
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self.folderDict: dict[str, Serie] = {} # Proper initialization
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self.folderDict: dict[str, Serie] = {}
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self.loader = loader
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logging.info(f"Initialized Loader with base path: {self.directory}")
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self._callback_manager = callback_manager or CallbackManager()
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self._current_operation_id: Optional[str] = None
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logger.info("Initialized SerieScanner with base path: %s", basePath)
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@property
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def callback_manager(self) -> CallbackManager:
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"""Get the callback manager instance."""
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return self._callback_manager
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def Reinit(self):
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self.folderDict: dict[str, Serie] = {} # Proper initialization
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"""Reinitialize the folder dictionary."""
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self.folderDict: dict[str, Serie] = {}
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def is_null_or_whitespace(self, s):
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"""Check if a string is None or whitespace."""
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return s is None or s.strip() == ""
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def GetTotalToScan(self):
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"""Get the total number of folders to scan."""
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result = self.__find_mp4_files()
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return sum(1 for _ in result)
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def Scan(self, callback):
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logging.info("Starting process to load missing episodes")
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result = self.__find_mp4_files()
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counter = 0
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for folder, mp4_files in result:
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try:
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counter += 1
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callback(folder, counter)
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serie = self.__ReadDataFromFile(folder)
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if (serie != None and not self.is_null_or_whitespace(serie.key)):
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missings, site = self.__GetMissingEpisodesAndSeason(serie.key, mp4_files)
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serie.episodeDict = missings
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serie.folder = folder
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serie.save_to_file(os.path.join(os.path.join(self.directory, folder), 'data'))
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if (serie.key in self.folderDict):
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logging.ERROR(f"dublication found: {serie.key}");
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pass
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self.folderDict[serie.key] = serie
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noKeyFound_logger.info(f"Saved Serie: '{str(serie)}'")
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except NoKeyFoundException as nkfe:
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NoKeyFoundException.error(f"Error processing folder '{folder}': {nkfe}")
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except Exception as e:
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error_logger.error(f"Folder: '{folder}' - Unexpected error processing folder '{folder}': {e} \n {traceback.format_exc()}")
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continue
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def Scan(self, callback: Optional[Callable[[str, int], None]] = None):
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"""
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Scan directories for anime series and missing episodes.
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Args:
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callback: Optional legacy callback function (folder, count)
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Raises:
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Exception: If scan fails critically
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"""
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# Generate unique operation ID
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self._current_operation_id = str(uuid.uuid4())
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logger.info("Starting scan for missing episodes")
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# Notify scan starting
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self._callback_manager.notify_progress(
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ProgressContext(
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operation_type=OperationType.SCAN,
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operation_id=self._current_operation_id,
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phase=ProgressPhase.STARTING,
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current=0,
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total=0,
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percentage=0.0,
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message="Initializing scan"
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)
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)
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try:
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# Get total items to process
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total_to_scan = self.GetTotalToScan()
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logger.info("Total folders to scan: %d", total_to_scan)
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result = self.__find_mp4_files()
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counter = 0
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for folder, mp4_files in result:
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try:
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counter += 1
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# Calculate progress
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percentage = (
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(counter / total_to_scan * 100)
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if total_to_scan > 0 else 0
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)
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# Notify progress
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self._callback_manager.notify_progress(
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ProgressContext(
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operation_type=OperationType.SCAN,
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operation_id=self._current_operation_id,
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phase=ProgressPhase.IN_PROGRESS,
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current=counter,
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total=total_to_scan,
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percentage=percentage,
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message=f"Scanning: {folder}",
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details=f"Found {len(mp4_files)} episodes"
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)
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)
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# Call legacy callback if provided
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if callback:
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callback(folder, counter)
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serie = self.__ReadDataFromFile(folder)
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if (
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serie is not None
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and not self.is_null_or_whitespace(serie.key)
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):
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missings, site = self.__GetMissingEpisodesAndSeason(
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serie.key, mp4_files
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)
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serie.episodeDict = missings
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serie.folder = folder
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data_path = os.path.join(
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self.directory, folder, 'data'
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)
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serie.save_to_file(data_path)
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if serie.key in self.folderDict:
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logger.error(
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"Duplication found: %s", serie.key
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)
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else:
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self.folderDict[serie.key] = serie
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noKeyFound_logger.info(
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"Saved Serie: '%s'", str(serie)
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)
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except NoKeyFoundException as nkfe:
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# Log error and notify via callback
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error_msg = f"Error processing folder '{folder}': {nkfe}"
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NoKeyFoundException.error(error_msg)
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self._callback_manager.notify_error(
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ErrorContext(
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operation_type=OperationType.SCAN,
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operation_id=self._current_operation_id,
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error=nkfe,
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message=error_msg,
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recoverable=True,
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metadata={"folder": folder}
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)
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)
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except Exception as e:
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# Log error and notify via callback
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error_msg = (
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f"Folder: '{folder}' - "
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f"Unexpected error: {e}"
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)
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error_logger.error(
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"%s\n%s",
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error_msg,
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traceback.format_exc()
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)
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self._callback_manager.notify_error(
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ErrorContext(
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operation_type=OperationType.SCAN,
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operation_id=self._current_operation_id,
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error=e,
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message=error_msg,
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recoverable=True,
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metadata={"folder": folder}
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)
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)
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continue
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# Notify scan completion
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self._callback_manager.notify_completion(
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CompletionContext(
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operation_type=OperationType.SCAN,
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operation_id=self._current_operation_id,
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success=True,
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message=f"Scan completed. Processed {counter} folders.",
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statistics={
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"total_folders": counter,
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"series_found": len(self.folderDict)
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}
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)
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)
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logger.info(
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"Scan completed. Processed %d folders, found %d series",
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counter,
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len(self.folderDict)
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)
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except Exception as e:
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# Critical error - notify and re-raise
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error_msg = f"Critical scan error: {e}"
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logger.error("%s\n%s", error_msg, traceback.format_exc())
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self._callback_manager.notify_error(
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ErrorContext(
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operation_type=OperationType.SCAN,
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operation_id=self._current_operation_id,
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error=e,
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message=error_msg,
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recoverable=False
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)
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)
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self._callback_manager.notify_completion(
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CompletionContext(
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operation_type=OperationType.SCAN,
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operation_id=self._current_operation_id,
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success=False,
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message=error_msg
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)
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)
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raise
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def __find_mp4_files(self):
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logging.info("Scanning for .mp4 files")
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"""Find all .mp4 files in the directory structure."""
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logger.info("Scanning for .mp4 files")
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for anime_name in os.listdir(self.directory):
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anime_path = os.path.join(self.directory, anime_name)
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if os.path.isdir(anime_path):
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@@ -67,43 +265,68 @@ class SerieScanner:
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yield anime_name, mp4_files if has_files else []
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def __remove_year(self, input_string: str):
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"""Remove year information from input string."""
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cleaned_string = re.sub(r'\(\d{4}\)', '', input_string).strip()
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logging.debug(f"Removed year from '{input_string}' -> '{cleaned_string}'")
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logger.debug(
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"Removed year from '%s' -> '%s'",
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input_string,
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cleaned_string
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)
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return cleaned_string
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def __ReadDataFromFile(self, folder_name: str):
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"""Read serie data from file or key file."""
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folder_path = os.path.join(self.directory, folder_name)
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key = None
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key_file = os.path.join(folder_path, 'key')
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serie_file = os.path.join(folder_path, 'data')
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if os.path.exists(key_file):
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with open(key_file, 'r') as file:
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with open(key_file, 'r', encoding='utf-8') as file:
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key = file.read().strip()
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logging.info(f"Key found for folder '{folder_name}': {key}")
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logger.info(
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"Key found for folder '%s': %s",
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folder_name,
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key
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)
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return Serie(key, "", "aniworld.to", folder_name, dict())
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if os.path.exists(serie_file):
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with open(serie_file, "rb") as file:
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logging.info(f"load serie_file from '{folder_name}': {serie_file}")
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logger.info(
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"load serie_file from '%s': %s",
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folder_name,
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serie_file
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)
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return Serie.load_from_file(serie_file)
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return None
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def __GetEpisodeAndSeason(self, filename: str):
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"""Extract season and episode numbers from filename."""
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pattern = r'S(\d+)E(\d+)'
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match = re.search(pattern, filename)
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if match:
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season = match.group(1)
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episode = match.group(2)
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logging.debug(f"Extracted season {season}, episode {episode} from '{filename}'")
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logger.debug(
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"Extracted season %s, episode %s from '%s'",
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season,
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episode,
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filename
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)
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return int(season), int(episode)
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else:
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logging.error(f"Failed to find season/episode pattern in '{filename}'")
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raise MatchNotFoundError("Season and episode pattern not found in the filename.")
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logger.error(
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"Failed to find season/episode pattern in '%s'",
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filename
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)
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raise MatchNotFoundError(
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"Season and episode pattern not found in the filename."
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)
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def __GetEpisodesAndSeasons(self, mp4_files: []):
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def __GetEpisodesAndSeasons(self, mp4_files: list):
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"""Get episodes grouped by season from mp4 files."""
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episodes_dict = {}
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for file in mp4_files:
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@@ -115,13 +338,19 @@ class SerieScanner:
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episodes_dict[season] = [episode]
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return episodes_dict
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def __GetMissingEpisodesAndSeason(self, key: str, mp4_files: []):
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expected_dict = self.loader.get_season_episode_count(key) # key season , value count of episodes
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def __GetMissingEpisodesAndSeason(self, key: str, mp4_files: list):
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"""Get missing episodes for a serie."""
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# key season , value count of episodes
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expected_dict = self.loader.get_season_episode_count(key)
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filedict = self.__GetEpisodesAndSeasons(mp4_files)
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episodes_dict = {}
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for season, expected_count in expected_dict.items():
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existing_episodes = filedict.get(season, [])
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missing_episodes = [ep for ep in range(1, expected_count + 1) if ep not in existing_episodes and self.loader.IsLanguage(season, ep, key)]
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missing_episodes = [
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ep for ep in range(1, expected_count + 1)
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if ep not in existing_episodes
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and self.loader.IsLanguage(season, ep, key)
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]
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if missing_episodes:
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episodes_dict[season] = missing_episodes
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@@ -8,11 +8,20 @@ progress reporting, error handling, and operation cancellation.
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import asyncio
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import logging
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import uuid
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from dataclasses import dataclass
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from enum import Enum
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from typing import Any, Callable, Dict, List, Optional
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from src.core.entities.SerieList import SerieList
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from src.core.interfaces.callbacks import (
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CallbackManager,
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CompletionContext,
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ErrorContext,
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OperationType,
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ProgressContext,
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ProgressPhase,
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)
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from src.core.providers.provider_factory import Loaders
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from src.core.SerieScanner import SerieScanner
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@@ -66,15 +75,17 @@ class SeriesApp:
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self,
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directory_to_search: str,
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progress_callback: Optional[Callable[[ProgressInfo], None]] = None,
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error_callback: Optional[Callable[[Exception], None]] = None
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error_callback: Optional[Callable[[Exception], None]] = None,
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callback_manager: Optional[CallbackManager] = None
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):
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"""
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Initialize SeriesApp.
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Args:
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directory_to_search: Base directory for anime series
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progress_callback: Optional callback for progress updates
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error_callback: Optional callback for error notifications
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progress_callback: Optional legacy callback for progress updates
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error_callback: Optional legacy callback for error notifications
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callback_manager: Optional callback manager for new callback system
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"""
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SeriesApp._initialization_count += 1
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@@ -86,9 +97,13 @@ class SeriesApp:
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self.progress_callback = progress_callback
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self.error_callback = error_callback
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# Initialize new callback system
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self._callback_manager = callback_manager or CallbackManager()
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# Cancellation support
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self._cancel_flag = False
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self._current_operation: Optional[str] = None
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self._current_operation_id: Optional[str] = None
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self._operation_status = OperationStatus.IDLE
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# Initialize components
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@@ -96,7 +111,9 @@ class SeriesApp:
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self.Loaders = Loaders()
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self.loader = self.Loaders.GetLoader(key="aniworld.to")
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self.SerieScanner = SerieScanner(
|
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directory_to_search, self.loader
|
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directory_to_search,
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self.loader,
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self._callback_manager
|
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)
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self.List = SerieList(self.directory_to_search)
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self.__InitList__()
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@@ -110,6 +127,11 @@ class SeriesApp:
|
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self._handle_error(e)
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raise
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|
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@property
|
||||
def callback_manager(self) -> CallbackManager:
|
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"""Get the callback manager instance."""
|
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return self._callback_manager
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||||
|
||||
def __InitList__(self):
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"""Initialize the series list with missing episodes."""
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try:
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@@ -163,13 +185,14 @@ class SeriesApp:
|
||||
season: Season number
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||||
episode: Episode number
|
||||
key: Serie key
|
||||
callback: Optional progress callback
|
||||
callback: Optional legacy progress callback
|
||||
language: Language preference
|
||||
|
||||
Returns:
|
||||
OperationResult with download status
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||||
"""
|
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self._current_operation = f"download_S{season:02d}E{episode:02d}"
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||||
self._current_operation_id = str(uuid.uuid4())
|
||||
self._operation_status = OperationStatus.RUNNING
|
||||
self._cancel_flag = False
|
||||
|
||||
@@ -179,19 +202,81 @@ class SeriesApp:
|
||||
serieFolder, season, episode
|
||||
)
|
||||
|
||||
# Notify download starting
|
||||
start_msg = (
|
||||
f"Starting download: {serieFolder} "
|
||||
f"S{season:02d}E{episode:02d}"
|
||||
)
|
||||
self._callback_manager.notify_progress(
|
||||
ProgressContext(
|
||||
operation_type=OperationType.DOWNLOAD,
|
||||
operation_id=self._current_operation_id,
|
||||
phase=ProgressPhase.STARTING,
|
||||
current=0,
|
||||
total=100,
|
||||
percentage=0.0,
|
||||
message=start_msg,
|
||||
metadata={
|
||||
"series": serieFolder,
|
||||
"season": season,
|
||||
"episode": episode,
|
||||
"key": key,
|
||||
"language": language
|
||||
}
|
||||
)
|
||||
)
|
||||
|
||||
# Check for cancellation before starting
|
||||
if self._is_cancelled():
|
||||
self._callback_manager.notify_completion(
|
||||
CompletionContext(
|
||||
operation_type=OperationType.DOWNLOAD,
|
||||
operation_id=self._current_operation_id,
|
||||
success=False,
|
||||
message="Download cancelled before starting"
|
||||
)
|
||||
)
|
||||
return OperationResult(
|
||||
success=False,
|
||||
message="Download cancelled before starting"
|
||||
)
|
||||
|
||||
# Wrap callback to check for cancellation
|
||||
# Wrap callback to check for cancellation and report progress
|
||||
def wrapped_callback(progress: float):
|
||||
if self._is_cancelled():
|
||||
raise InterruptedError("Download cancelled by user")
|
||||
|
||||
# Notify progress via new callback system
|
||||
self._callback_manager.notify_progress(
|
||||
ProgressContext(
|
||||
operation_type=OperationType.DOWNLOAD,
|
||||
operation_id=self._current_operation_id,
|
||||
phase=ProgressPhase.IN_PROGRESS,
|
||||
current=int(progress),
|
||||
total=100,
|
||||
percentage=progress,
|
||||
message=f"Downloading: {progress:.1f}%",
|
||||
metadata={
|
||||
"series": serieFolder,
|
||||
"season": season,
|
||||
"episode": episode
|
||||
}
|
||||
)
|
||||
)
|
||||
|
||||
# Call legacy callback if provided
|
||||
if callback:
|
||||
callback(progress)
|
||||
|
||||
# Call legacy progress_callback if provided
|
||||
if self.progress_callback:
|
||||
self.progress_callback(ProgressInfo(
|
||||
current=int(progress),
|
||||
total=100,
|
||||
message=f"Downloading S{season:02d}E{episode:02d}",
|
||||
percentage=progress,
|
||||
status=OperationStatus.RUNNING
|
||||
))
|
||||
|
||||
# Perform download
|
||||
self.loader.Download(
|
||||
@@ -210,7 +295,22 @@ class SeriesApp:
|
||||
serieFolder, season, episode
|
||||
)
|
||||
|
||||
# Notify completion
|
||||
msg = f"Successfully downloaded S{season:02d}E{episode:02d}"
|
||||
self._callback_manager.notify_completion(
|
||||
CompletionContext(
|
||||
operation_type=OperationType.DOWNLOAD,
|
||||
operation_id=self._current_operation_id,
|
||||
success=True,
|
||||
message=msg,
|
||||
statistics={
|
||||
"series": serieFolder,
|
||||
"season": season,
|
||||
"episode": episode
|
||||
}
|
||||
)
|
||||
)
|
||||
|
||||
return OperationResult(
|
||||
success=True,
|
||||
message=msg
|
||||
@@ -219,6 +319,17 @@ class SeriesApp:
|
||||
except InterruptedError as e:
|
||||
self._operation_status = OperationStatus.CANCELLED
|
||||
logger.warning("Download cancelled: %s", e)
|
||||
|
||||
# Notify cancellation
|
||||
self._callback_manager.notify_completion(
|
||||
CompletionContext(
|
||||
operation_type=OperationType.DOWNLOAD,
|
||||
operation_id=self._current_operation_id,
|
||||
success=False,
|
||||
message="Download cancelled"
|
||||
)
|
||||
)
|
||||
|
||||
return OperationResult(
|
||||
success=False,
|
||||
message="Download cancelled",
|
||||
@@ -227,14 +338,43 @@ class SeriesApp:
|
||||
except (IOError, OSError, RuntimeError) as e:
|
||||
self._operation_status = OperationStatus.FAILED
|
||||
logger.error("Download failed: %s", e)
|
||||
|
||||
# Notify error
|
||||
error_msg = f"Download failed: {str(e)}"
|
||||
self._callback_manager.notify_error(
|
||||
ErrorContext(
|
||||
operation_type=OperationType.DOWNLOAD,
|
||||
operation_id=self._current_operation_id,
|
||||
error=e,
|
||||
message=error_msg,
|
||||
recoverable=False,
|
||||
metadata={
|
||||
"series": serieFolder,
|
||||
"season": season,
|
||||
"episode": episode
|
||||
}
|
||||
)
|
||||
)
|
||||
|
||||
# Notify completion with failure
|
||||
self._callback_manager.notify_completion(
|
||||
CompletionContext(
|
||||
operation_type=OperationType.DOWNLOAD,
|
||||
operation_id=self._current_operation_id,
|
||||
success=False,
|
||||
message=error_msg
|
||||
)
|
||||
)
|
||||
|
||||
self._handle_error(e)
|
||||
return OperationResult(
|
||||
success=False,
|
||||
message=f"Download failed: {str(e)}",
|
||||
message=error_msg,
|
||||
error=e
|
||||
)
|
||||
finally:
|
||||
self._current_operation = None
|
||||
self._current_operation_id = None
|
||||
|
||||
def ReScan(
|
||||
self,
|
||||
|
||||
347
src/core/interfaces/callbacks.py
Normal file
347
src/core/interfaces/callbacks.py
Normal file
@@ -0,0 +1,347 @@
|
||||
"""
|
||||
Progress callback interfaces for core operations.
|
||||
|
||||
This module defines clean interfaces for progress reporting, error handling,
|
||||
and completion notifications across all core operations (scanning,
|
||||
downloading).
|
||||
"""
|
||||
|
||||
import logging
|
||||
from abc import ABC, abstractmethod
|
||||
from dataclasses import dataclass, field
|
||||
from enum import Enum
|
||||
from typing import Any, Dict, Optional
|
||||
|
||||
|
||||
class OperationType(str, Enum):
|
||||
"""Types of operations that can report progress."""
|
||||
|
||||
SCAN = "scan"
|
||||
DOWNLOAD = "download"
|
||||
SEARCH = "search"
|
||||
INITIALIZATION = "initialization"
|
||||
|
||||
|
||||
class ProgressPhase(str, Enum):
|
||||
"""Phases of an operation's lifecycle."""
|
||||
|
||||
STARTING = "starting"
|
||||
IN_PROGRESS = "in_progress"
|
||||
COMPLETING = "completing"
|
||||
COMPLETED = "completed"
|
||||
FAILED = "failed"
|
||||
CANCELLED = "cancelled"
|
||||
|
||||
|
||||
@dataclass
|
||||
class ProgressContext:
|
||||
"""
|
||||
Complete context information for a progress update.
|
||||
|
||||
Attributes:
|
||||
operation_type: Type of operation being performed
|
||||
operation_id: Unique identifier for this operation
|
||||
phase: Current phase of the operation
|
||||
current: Current progress value (e.g., files processed)
|
||||
total: Total progress value (e.g., total files)
|
||||
percentage: Completion percentage (0.0 to 100.0)
|
||||
message: Human-readable progress message
|
||||
details: Additional context-specific details
|
||||
metadata: Extra metadata for specialized use cases
|
||||
"""
|
||||
|
||||
operation_type: OperationType
|
||||
operation_id: str
|
||||
phase: ProgressPhase
|
||||
current: int
|
||||
total: int
|
||||
percentage: float
|
||||
message: str
|
||||
details: Optional[str] = None
|
||||
metadata: Dict[str, Any] = field(default_factory=dict)
|
||||
|
||||
def to_dict(self) -> Dict[str, Any]:
|
||||
"""Convert to dictionary for serialization."""
|
||||
return {
|
||||
"operation_type": self.operation_type.value,
|
||||
"operation_id": self.operation_id,
|
||||
"phase": self.phase.value,
|
||||
"current": self.current,
|
||||
"total": self.total,
|
||||
"percentage": round(self.percentage, 2),
|
||||
"message": self.message,
|
||||
"details": self.details,
|
||||
"metadata": self.metadata,
|
||||
}
|
||||
|
||||
|
||||
@dataclass
|
||||
class ErrorContext:
|
||||
"""
|
||||
Context information for error callbacks.
|
||||
|
||||
Attributes:
|
||||
operation_type: Type of operation that failed
|
||||
operation_id: Unique identifier for the operation
|
||||
error: The exception that occurred
|
||||
message: Human-readable error message
|
||||
recoverable: Whether the error is recoverable
|
||||
retry_count: Number of retry attempts made
|
||||
metadata: Additional error context
|
||||
"""
|
||||
|
||||
operation_type: OperationType
|
||||
operation_id: str
|
||||
error: Exception
|
||||
message: str
|
||||
recoverable: bool = False
|
||||
retry_count: int = 0
|
||||
metadata: Dict[str, Any] = field(default_factory=dict)
|
||||
|
||||
def to_dict(self) -> Dict[str, Any]:
|
||||
"""Convert to dictionary for serialization."""
|
||||
return {
|
||||
"operation_type": self.operation_type.value,
|
||||
"operation_id": self.operation_id,
|
||||
"error_type": type(self.error).__name__,
|
||||
"error_message": str(self.error),
|
||||
"message": self.message,
|
||||
"recoverable": self.recoverable,
|
||||
"retry_count": self.retry_count,
|
||||
"metadata": self.metadata,
|
||||
}
|
||||
|
||||
|
||||
@dataclass
|
||||
class CompletionContext:
|
||||
"""
|
||||
Context information for completion callbacks.
|
||||
|
||||
Attributes:
|
||||
operation_type: Type of operation that completed
|
||||
operation_id: Unique identifier for the operation
|
||||
success: Whether the operation completed successfully
|
||||
message: Human-readable completion message
|
||||
result_data: Result data from the operation
|
||||
statistics: Operation statistics (duration, items processed, etc.)
|
||||
metadata: Additional completion context
|
||||
"""
|
||||
|
||||
operation_type: OperationType
|
||||
operation_id: str
|
||||
success: bool
|
||||
message: str
|
||||
result_data: Optional[Any] = None
|
||||
statistics: Dict[str, Any] = field(default_factory=dict)
|
||||
metadata: Dict[str, Any] = field(default_factory=dict)
|
||||
|
||||
def to_dict(self) -> Dict[str, Any]:
|
||||
"""Convert to dictionary for serialization."""
|
||||
return {
|
||||
"operation_type": self.operation_type.value,
|
||||
"operation_id": self.operation_id,
|
||||
"success": self.success,
|
||||
"message": self.message,
|
||||
"statistics": self.statistics,
|
||||
"metadata": self.metadata,
|
||||
}
|
||||
|
||||
|
||||
class ProgressCallback(ABC):
|
||||
"""
|
||||
Abstract base class for progress callbacks.
|
||||
|
||||
Implement this interface to receive progress updates from core operations.
|
||||
"""
|
||||
|
||||
@abstractmethod
|
||||
def on_progress(self, context: ProgressContext) -> None:
|
||||
"""
|
||||
Called when progress is made in an operation.
|
||||
|
||||
Args:
|
||||
context: Complete progress context information
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class ErrorCallback(ABC):
|
||||
"""
|
||||
Abstract base class for error callbacks.
|
||||
|
||||
Implement this interface to receive error notifications from core
|
||||
operations.
|
||||
"""
|
||||
|
||||
@abstractmethod
|
||||
def on_error(self, context: ErrorContext) -> None:
|
||||
"""
|
||||
Called when an error occurs during an operation.
|
||||
|
||||
Args:
|
||||
context: Complete error context information
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class CompletionCallback(ABC):
|
||||
"""
|
||||
Abstract base class for completion callbacks.
|
||||
|
||||
Implement this interface to receive completion notifications from
|
||||
core operations.
|
||||
"""
|
||||
|
||||
@abstractmethod
|
||||
def on_completion(self, context: CompletionContext) -> None:
|
||||
"""
|
||||
Called when an operation completes (successfully or not).
|
||||
|
||||
Args:
|
||||
context: Complete completion context information
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class CallbackManager:
|
||||
"""
|
||||
Manages multiple callbacks for an operation.
|
||||
|
||||
This class allows registering multiple progress, error, and completion
|
||||
callbacks and dispatching events to all registered callbacks.
|
||||
"""
|
||||
|
||||
def __init__(self):
|
||||
"""Initialize the callback manager."""
|
||||
self._progress_callbacks: list[ProgressCallback] = []
|
||||
self._error_callbacks: list[ErrorCallback] = []
|
||||
self._completion_callbacks: list[CompletionCallback] = []
|
||||
|
||||
def register_progress_callback(self, callback: ProgressCallback) -> None:
|
||||
"""
|
||||
Register a progress callback.
|
||||
|
||||
Args:
|
||||
callback: Progress callback to register
|
||||
"""
|
||||
if callback not in self._progress_callbacks:
|
||||
self._progress_callbacks.append(callback)
|
||||
|
||||
def register_error_callback(self, callback: ErrorCallback) -> None:
|
||||
"""
|
||||
Register an error callback.
|
||||
|
||||
Args:
|
||||
callback: Error callback to register
|
||||
"""
|
||||
if callback not in self._error_callbacks:
|
||||
self._error_callbacks.append(callback)
|
||||
|
||||
def register_completion_callback(
|
||||
self,
|
||||
callback: CompletionCallback
|
||||
) -> None:
|
||||
"""
|
||||
Register a completion callback.
|
||||
|
||||
Args:
|
||||
callback: Completion callback to register
|
||||
"""
|
||||
if callback not in self._completion_callbacks:
|
||||
self._completion_callbacks.append(callback)
|
||||
|
||||
def unregister_progress_callback(self, callback: ProgressCallback) -> None:
|
||||
"""
|
||||
Unregister a progress callback.
|
||||
|
||||
Args:
|
||||
callback: Progress callback to unregister
|
||||
"""
|
||||
if callback in self._progress_callbacks:
|
||||
self._progress_callbacks.remove(callback)
|
||||
|
||||
def unregister_error_callback(self, callback: ErrorCallback) -> None:
|
||||
"""
|
||||
Unregister an error callback.
|
||||
|
||||
Args:
|
||||
callback: Error callback to unregister
|
||||
"""
|
||||
if callback in self._error_callbacks:
|
||||
self._error_callbacks.remove(callback)
|
||||
|
||||
def unregister_completion_callback(
|
||||
self,
|
||||
callback: CompletionCallback
|
||||
) -> None:
|
||||
"""
|
||||
Unregister a completion callback.
|
||||
|
||||
Args:
|
||||
callback: Completion callback to unregister
|
||||
"""
|
||||
if callback in self._completion_callbacks:
|
||||
self._completion_callbacks.remove(callback)
|
||||
|
||||
def notify_progress(self, context: ProgressContext) -> None:
|
||||
"""
|
||||
Notify all registered progress callbacks.
|
||||
|
||||
Args:
|
||||
context: Progress context to send
|
||||
"""
|
||||
for callback in self._progress_callbacks:
|
||||
try:
|
||||
callback.on_progress(context)
|
||||
except Exception as e:
|
||||
# Log but don't let callback errors break the operation
|
||||
logging.error(
|
||||
"Error in progress callback %s: %s",
|
||||
callback,
|
||||
e,
|
||||
exc_info=True
|
||||
)
|
||||
|
||||
def notify_error(self, context: ErrorContext) -> None:
|
||||
"""
|
||||
Notify all registered error callbacks.
|
||||
|
||||
Args:
|
||||
context: Error context to send
|
||||
"""
|
||||
for callback in self._error_callbacks:
|
||||
try:
|
||||
callback.on_error(context)
|
||||
except Exception as e:
|
||||
# Log but don't let callback errors break the operation
|
||||
logging.error(
|
||||
"Error in error callback %s: %s",
|
||||
callback,
|
||||
e,
|
||||
exc_info=True
|
||||
)
|
||||
|
||||
def notify_completion(self, context: CompletionContext) -> None:
|
||||
"""
|
||||
Notify all registered completion callbacks.
|
||||
|
||||
Args:
|
||||
context: Completion context to send
|
||||
"""
|
||||
for callback in self._completion_callbacks:
|
||||
try:
|
||||
callback.on_completion(context)
|
||||
except Exception as e:
|
||||
# Log but don't let callback errors break the operation
|
||||
logging.error(
|
||||
"Error in completion callback %s: %s",
|
||||
callback,
|
||||
e,
|
||||
exc_info=True
|
||||
)
|
||||
|
||||
def clear_all_callbacks(self) -> None:
|
||||
"""Clear all registered callbacks."""
|
||||
self._progress_callbacks.clear()
|
||||
self._error_callbacks.clear()
|
||||
self._completion_callbacks.clear()
|
||||
Reference in New Issue
Block a user