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import logging
import logging.handlers
from datetime import datetime, timedelta
from pathlib import Path
import os
import glob
class AgentLogger:
def __init__(self, log_dir="logs", max_bytes=10*1024*1024, backup_count=5, cleanup_days=7):
self.log_dir = Path(log_dir)
self.log_dir.mkdir(exist_ok=True)
self.max_bytes = max_bytes
self.backup_count = backup_count
self.cleanup_days = cleanup_days
self.logger = logging.getLogger("agent_logger")
self.logger.setLevel(logging.DEBUG)
formatter = logging.Formatter("%(asctime)s - %(levelname)s - %(message)s")
# Console handler
console_handler = logging.StreamHandler()
console_handler.setLevel(logging.INFO)
console_handler.setFormatter(formatter)
self.logger.addHandler(console_handler)
# Rotating file handler
log_file = self.log_dir / f"agents_{datetime.now().strftime('%Y%m%d')}.log"
file_handler = logging.handlers.RotatingFileHandler(
log_file,
maxBytes=max_bytes,
backupCount=backup_count,
encoding='utf-8'
)
file_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(formatter)
self.logger.addHandler(file_handler)
# Clean up old log files on startup
self.cleanup_old_logs()
def log_workflow_step(self, agent_name, message):
self.logger.info(f"{agent_name}: {message}")
def log_agent_output(self, agent_name, output, method, duration):
self.logger.debug(f"{agent_name} {method} output: {output} ({duration}s)")
def log_inter_agent_pass(self, from_agent, to_agent, data_size):
self.logger.info(f"🔗 PASS: {from_agent} → {to_agent} | Size: {data_size}")
def cleanup_old_logs(self):
"""Clean up log files older than cleanup_days."""
try:
cutoff_date = datetime.now() - timedelta(days=self.cleanup_days)
log_pattern = str(self.log_dir / "agents_*.log*")
deleted_count = 0
for log_file_path in glob.glob(log_pattern):
log_file = Path(log_file_path)
try:
# Get file modification time
file_mtime = datetime.fromtimestamp(log_file.stat().st_mtime)
if file_mtime < cutoff_date:
log_file.unlink()
deleted_count += 1
print(f"Deleted old log file: {log_file.name}")
except Exception as e:
print(f"Error deleting log file {log_file}: {e}")
if deleted_count > 0:
print(f"Cleaned up {deleted_count} old log files")
except Exception as e:
print(f"Error during log cleanup: {e}")
def get_log_stats(self):
"""Get statistics about log files."""
try:
log_pattern = str(self.log_dir / "agents_*.log*")
log_files = list(glob.glob(log_pattern))
total_size = 0
file_info = []
for log_file_path in log_files:
log_file = Path(log_file_path)
try:
size = log_file.stat().st_size
mtime = datetime.fromtimestamp(log_file.stat().st_mtime)
total_size += size
file_info.append({
'name': log_file.name,
'size_mb': round(size / (1024*1024), 2),
'modified': mtime.strftime('%Y-%m-%d %H:%M:%S')
})
except Exception as e:
print(f"Error reading log file {log_file}: {e}")
return {
'total_files': len(log_files),
'total_size_mb': round(total_size / (1024*1024), 2),
'files': file_info
}
except Exception as e:
print(f"Error getting log stats: {e}")
return {'error': str(e)}
# Create global logger with configuration
agent_logger = AgentLogger(
log_dir="logs",
max_bytes=10*1024*1024, # 10MB per file
backup_count=5, # Keep 5 backup files
cleanup_days=7 # Delete files older than 7 days
) |