starmen1265
0dfb51e9aa
- Pipeline class initializes with processors list - Validates processor STEP_NAME matches config.steps - _parse_url method parses URLs using LinkParser - _get_content_dir creates content directory from parsed URL Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
105 lines
3.2 KiB
Python
105 lines
3.2 KiB
Python
"""Pipeline engine - orchestrates multiple processors
|
|
|
|
The Pipeline class coordinates the workflow:
|
|
1. Parse URL to extract platform and content ID
|
|
2. Run processors in order (parse, download, asr, analyze)
|
|
3. Handle errors and state persistence
|
|
4. Return results
|
|
|
|
Key design decisions:
|
|
- Sequential execution (simpler, easier to debug)
|
|
- State persistence after each step (via WorkflowStateManager)
|
|
- Simple progress logging
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import logging
|
|
from pathlib import Path
|
|
from typing import Dict, List, Optional
|
|
|
|
from kb_pipeline.config import get_settings
|
|
from kb_pipeline.link_parser import LinkParser, ParsedLink
|
|
from kb_pipeline.processors.base import BaseProcessor
|
|
from kb_pipeline.schemas import PipelineConfig, PipelineInput, PipelineOutput
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class Pipeline:
|
|
"""Pipeline engine - orchestrates multiple processors
|
|
|
|
Orchestrates the workflow:
|
|
1. Parse URL to extract platform and content ID
|
|
2. Run processors in order (parse, download, asr, analyze)
|
|
3. Handle errors and state persistence
|
|
4. Return results
|
|
|
|
Key design decisions:
|
|
- Sequential execution (simpler, easier to debug)
|
|
- State persistence after each step (via WorkflowStateManager)
|
|
- Simple progress logging
|
|
"""
|
|
|
|
def __init__(
|
|
self,
|
|
processors: List[BaseProcessor],
|
|
config: Optional[PipelineConfig] = None,
|
|
output_dir: Optional[Path] = None,
|
|
):
|
|
"""Initialize the Pipeline.
|
|
|
|
Args:
|
|
processors: List of processor instances to use
|
|
config: Optional PipelineConfig for pipeline settings
|
|
output_dir: Optional output directory for content
|
|
|
|
Raises:
|
|
ValueError: If a processor's STEP_NAME is not in config.steps
|
|
"""
|
|
self.processors: Dict[str, BaseProcessor] = {p.STEP_NAME: p for p in processors}
|
|
self.config = config or PipelineConfig()
|
|
self.output_dir = output_dir or Path.cwd()
|
|
self.settings = get_settings()
|
|
|
|
# Validate processors - each processor's STEP_NAME must be in config.steps
|
|
for step_name in self.processors:
|
|
if step_name not in self.config.steps:
|
|
raise ValueError(f"Unknown processor: {step_name}")
|
|
|
|
def _parse_url(self, url: str) -> Optional[ParsedLink]:
|
|
"""Parse URL using LinkParser.
|
|
|
|
Args:
|
|
url: URL to parse
|
|
|
|
Returns:
|
|
ParsedLink with extracted information, or None if URL is not recognized
|
|
"""
|
|
if not url:
|
|
return None
|
|
|
|
parser = LinkParser()
|
|
parsed = parser.parse(url)
|
|
|
|
if not parsed:
|
|
logger.warning(f"Failed to parse URL: {url}")
|
|
return None
|
|
|
|
return parsed
|
|
|
|
def _get_content_dir(self, parsed: ParsedLink) -> Path:
|
|
"""Get content directory from parsed URL.
|
|
|
|
Creates the directory if it doesn't exist.
|
|
|
|
Args:
|
|
parsed: ParsedLink with platform and content_id
|
|
|
|
Returns:
|
|
Path to the content directory
|
|
"""
|
|
content_dir = self.output_dir / f"{parsed.platform}_{parsed.content_id}"
|
|
content_dir.mkdir(parents=True, exist_ok=True)
|
|
return content_dir
|