[IGNITE-11752] Refactor usages of "System.getenv(key)" to IgniteSystemProperties.getString(key)

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: general
• Ignite Flags: Docs Required
• Assignee: Unassigned
• Reporter: Alexey Kuznetsov
• Created: 16/Apr/19 08:08
• Updated: 29/Aug/19 05:47

Description

IgniteSystemProperties.getString(key) implemented as:
1. Try to get property from System.properties.
2. If not found - try to get from System.getenv

In Java you could easily override System.properties from code, for testing purposes, for example, but it is almost impossible to do the same for environment variables.