JMeter MCP Server

""" Base parser interface for JMeter test results. This module defines the base interface for JTL parsers. """ import abc from pathlib import Path from typing import Union from analyzer.models import TestResults class JTLParser(abc.ABC): """Base class for JTL parsers.""" @abc.abstractmethod def parse_file(self, file_path: Union[str, Path]) -> TestResults: """Parse a JTL file and return structured test results. Args: file_path: Path to the JTL file Returns: TestResults object containing parsed data Raises: FileNotFoundError: If the file does not exist ValueError: If the file format is invalid """ pass @staticmethod def validate_file(file_path: Union[str, Path]) -> bool: """Validate that the file exists and has a valid extension. Args: file_path: Path to the JTL file Returns: True if the file is valid, False otherwise """ path = Path(file_path) # Check if file exists if not path.exists(): return False # Check if file has a valid extension valid_extensions = ['.jtl', '.xml', '.csv'] if path.suffix.lower() not in valid_extensions: return False return True @staticmethod def detect_format(file_path: Union[str, Path]) -> str: """Detect whether the JTL file is in XML or CSV format. Args: file_path: Path to the JTL file Returns: 'xml' or 'csv' Raises: FileNotFoundError: If the file does not exist ValueError: If the format cannot be determined """ path = Path(file_path) # Check if file exists if not path.exists(): raise FileNotFoundError(f"File not found: {file_path}") # Try to determine format based on content with open(path, 'r', encoding='utf-8') as f: first_line = f.readline().strip() # Check for XML declaration if first_line.startswith('<?xml'): return 'xml' # Check for CSV header if ',' in first_line and ('timeStamp' in first_line or 'elapsed' in first_line): return 'csv' # If we can't determine from the first line, check file extension if path.suffix.lower() == '.xml': return 'xml' if path.suffix.lower() == '.csv': return 'csv' if path.suffix.lower() == '.jtl': # For .jtl files, we need to look at more content f.seek(0) content = f.read(1000) # Read first 1000 chars if '<?xml' in content: return 'xml' if ',' in content and ('timeStamp' in content or 'elapsed' in content): return 'csv' raise ValueError(f"Could not determine format of file: {file_path}")