[HDFS-12402] Refactor ErasureCodingPolicyManager and related codes

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha4
• Fix Version/s: 3.0.0-beta1
• Component/s: erasure-coding
• Target Version/s: 3.0.0-beta1
• Hadoop Flags: Reviewed
• Assignee: SammiChen
• Reporter: SammiChen
• Created: 07/Sep/17 02:59
• Updated: 07/Sep/17 21:34
• Resolved: 07/Sep/17 12:39

Description

1. Correct message string grammar error
2. Use HadoopIllegalArgumentException instead of IllegalECPolicyException
3. Use HadoopIllegalArgumentException instead of IllegalArgumentException
4. Remove IllegalECPolicyException