[CAMEL-15961] Calendar Stream component: implement proper synchonization

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.8.0
• Component/s: camel-google-calendar
• Estimated Complexity: Unknown
• Assignee: Andrea Cosentino
• Reporter: Jakob Merljak
• Created: 17/Dec/20 12:50
• Updated: 14/Jan/21 07:47
• Resolved: 14/Jan/21 07:47

Description

Calendar Stream component supports kind of an incremental polling by setting considerLastUpdate=true. However, this is problematic as even current events might have been updated a long time ago (e.g. recurring events) and setting updatedMin request parameter to such a value causes HTTP 410 error with message: "The requested minimum modification time lies too far in the past."

A proper synchronization logic should be implemented instead. Documentation: https://developers.google.com/calendar/v3/sync

Note that `syncToken` is incompatible with `orderBy`, `query`, `dateMin`, `updatedMin` and some other parameters.

Issue Links

• links to: GitHub Pull Request #4876