Class Keygen

Key generator for the files The key generator is used to generate a key for a file based on a given pattern. The key pattern can contain placeholders that will be replaced by the actual values. The placeholders are enclosed in curly braces and the following are supported by default:

• {_filename}: The name of the file
• {_extension}: The extension of the file
• {_timestamp}: The timestamp when the file was processed in milliseconds
• {_date}: The date when the file was processed in the format YYYY-MM-DD
• {_time}: The time when the file was processed in the format HH-mm-ss
• {_datetime}: The date and time when the file was processed in the format YYYY-MM-DD_HH-mm-ss
• {_year}: The year when the file was processed
• {_month}: The month when the file was processed
• {_day}: The day when the file was processed
• {_hour}: The hour when the file was processed
• {_minute}: The minute when the file was processed
• {_second}: The second when the file was processed

Other placeholders can be added by appling a custom file pattern over the file name, and using default values:

• file name: mySensor_flowMeter1_2024-12-30_2024-12-31.jsonl
• file pattern: {sensor}{measurement}{year}-{month}-{day}_{end}
• default values: {source: 'myFileFlinger1'}
• key pattern: {sensor}/{measurement}/{year}/{month}/{day}/data_{source}
• key: mySensor/flowMeter1/2024/12/30/data_myFileFlinger1