# Example Implementations

## Standard Error Handling Pattern

```python
from fsspeckit.common.logging_config import get_logger

logger = get_logger(__name__)

def read_file_safely(file_path):
    """Example of standardized error handling with logging"""
    context = {
        "file": str(file_path),
        "operation": "read"
    }
    
    try:
        # Open file and read content
        with open(file_path, 'rb') as f:
            result = f.read()
            
        logger.info("Successfully read %d bytes from %s", len(result), context["file"])
        return result
        
    except FileNotFoundError as e:
        logger.error("File not found during %s: %s", context["operation"], context["file"])
        raise FileNotFoundError(f"File not found: {context['file']}") from e
        
    except PermissionError as e:
        logger.error("Permission denied during %s: %s", context["operation"], context["file"])
        raise PermissionError(f"Permission denied: {context['file']}") from e
        
    except OSError as e:
        logger.error("OS error during %s %s: %s", context["operation"], context["file"], e)
        raise OSError(f"OS error accessing {context['file']}: {e}") from e
        
    except Exception as e:
        logger.error("Unexpected error during %s %s: %s", context["operation"], context["file"], e)
        raise RuntimeError(f"Unexpected error during {context['operation']}: {context['file']}") from e
```

## Exception Logging with Context

```python
def cleanup_resources(resources):
    """Example of cleanup error handling with individual logging"""
    for resource in resources:
        try:
            resource.close()
            logger.debug("Successfully closed resource: %s", resource.name)
        except Exception as e:
            logger.error("Failed to close resource %s: %s", resource.name, e, exc_info=True)
            # Continue with cleanup of other resources
```

## Performance-Guarded Logging

```python
def process_large_dataset(dataset):
    """Example of performance-conscious logging"""
    logger.info("Starting dataset processing: %s", dataset.name)
    
    # Guard expensive debug operations
    if logger.isEnabledFor(logging.DEBUG):
        dataset_stats = dataset.get_statistics()
        logger.debug("Dataset statistics: %s", dataset_stats)
    
    for batch in dataset.batches():
        # Lazy string formatting for performance
        logger.debug("Processing batch %d with %d rows", batch.id, len(batch))
        
        try:
            result = process_batch(batch)
            logger.info("Completed batch %d: %d rows processed", batch.id, result.processed_rows)
        except Exception as e:
            logger.error("Failed to process batch %d: %s", batch.id, e, exc_info=True)
            raise
```

## Configuration with Environment Variables

```python
import os
from fsspeckit.common.logging_config import setup_logging, get_logger

# Initialize logging based on environment
setup_logging(
    level=os.getenv('FSSPECKIT_LOG_LEVEL', 'INFO'),
    include_timestamp=os.getenv('FSSPECKIT_LOG_TIMESTAMP', 'true').lower() == 'true',
    file_path=os.getenv('FSSPECKIT_LOG_FILE')
)

logger = get_logger(__name__)

logger.info("Application started with log level: %s", 
           os.getenv('FSSPECKIT_LOG_LEVEL', 'INFO'))
```