[ACCUMULO-3956] Improve validation of configuration and arguments with guava Predicates

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.8.0
• Assignee: Christopher Tubbs
• Reporter: Christopher Tubbs
• Created: 07/Aug/15 23:13
• Updated: 13/Aug/15 23:21
• Resolved: 13/Aug/15 23:21

Description

There's a few places in our code which could benefit from additional validation of arguments and configuration by using the built-in Guava Predicates. This makes some checks that we're doing a bit more readable, and enables us to do more expressive validation checks.

Specifically, I see room for improvement in our PropertyType validators (which currently do very limited regex validation) and, to a lesser degree, o.a.a.core.util.Validator.

I intend to replace these with proper Predicates to determine their validity.