[NIFI-5156] Update 'Google Cloud SDK' version and refactor GCP processors' code

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0, 1.6.0
• Fix Version/s: 1.7.0
• Component/s: Extensions
• Assignee: Sivaprasanna Sethuraman
• Reporter: Sivaprasanna Sethuraman
• Created: 05/May/18 07:50
• Updated: 09/May/18 16:21
• Resolved: 09/May/18 16:21

Description

The current version of nifi-gcp-bundle has the following problems:

1. It is of a very old version
2. The bundle uses google-cloud which is a uber/fat jar that comes with all google-cloud-java SDKs making the overall NAR bundle heavy.

The following improvements are identified and have to be made:

• Update the SDK to a more recent version
• Introduce google-cloud-bom and then use the necessary SDK (storage, bigquery, etc) as and when needed, thus reducing the overall NAR size.
• Refactor and make necessary changes to the current version of GCS processors, if needed because of the update

Issue Links

• links to: GitHub Pull Request #2680