[HUDI-7623] Refactoring of RemoteHoodieTableFileSystemView and RequestHandler

[wombatu-kun]

Change Logs

Found a lot of code duplicates and inconsistent naming in RemoteHoodieTableFileSystemView and RequestHandler classes.

• removed code duplicates;
• fixed logging;
• fixed naming of constants (request urls);
• moved some methods to right places;
• removed extra newlines

Impact

none

Risk level (write none, low medium or high below)

none

Documentation Update

none

• The config description must be updated if new configs are added or the default value of the configs are changed
• Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the
  ticket number here and follow the instruction to make
  changes to the website.

Contributor's checklist

• Read through contributor's guide
• Change Logs and Impact were stated clearly
• Adequate tests were added if applicable
• CI passed

[wombatu-kun]

@hudi-bot run azure

[wombatu-kun]

@hudi-bot run azure

[hudi-bot]

CI report:

• 61e61c2 Azure: SUCCESS

Bot commands

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• @hudi-bot run azure re-run the last Azure build