Design - Statistics

User Stories and Features 

1. Rest API 
2. HTML UI interface showing summary info
3. Stats
   1. resource count
   2. ocfl-size
   3. binary resource count
   4. binary byte count
   5. binary byte and resource count  by mimetype
   6. binary bytes in over the last n number of days, weeks, months
   7. bytes out over the last n number of days, weeks, months
   8. resources created over the last n number of days, weeks, months
4. Provide some basic custom query capability

Components 

REST API

HTML UI

State Management

• statistics are stored in the database along with the other indexes
• on startup, the stats are compiled as part of the reindexing process.
• As resources are created, retrieved, updated and deleted, statistics recorded in the database
• Frequently used stats queries can be cached if necessary.