"extension-log" File Appender

This appender manages extension execution logs.

Configuration example:

<File name="extension-log" fileName="logs/extension_execution.log">
    <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} %-5p - %m%n"/>
</File>

Example Log :

2025-02-05 17:39:51 INFO  - 564fb2fd-8ffa-5d81-a696-c56eba454d41 One Drive Extension TransferUploadReady community-one-drive/paris.jpg [COMPLETED]

Log details:

1. 2025-02-05 17:39:51 : Date and time of the log
2. INFO : Log level
3. - 564fb2fd-8ffa-5d81-a696-c56eba454d41 One Drive Extension TransferUploadReady community-one-drive/paris.jpg [COMPLETED] : Log message

Basic Configuration

• Name: extension-log
• Output file: logs/extension_execution.log

Log Format

The pattern %d{yyyy-MM-dd HH:mm:ss} %-5p - %m%n defines the following format:

• %d{yyyy-MM-dd HH:mm:ss} : Date and time in specified format
• %-5p : Log level aligned to 5 characters
• %m : Log message
• %n : Line break

Characteristics

• Single file without rotation
• Continuous log accumulation
• Ideal for extension monitoring where complete history retention is important

References

• Log4j2 File Appender