[HADOOP-9876] Take advantage of protobuf 2.5.0 new features for increased performance

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Alejandro Abdelnur
• Created: 15/Aug/13 15:50
• Updated: 15/Aug/13 15:50

Description

From protobuf 2.5.0 release notes:

• Comments in proto files are now collected and put into generated code as
  comments for corresponding classes and data members.
• Added Parser to parse directly into messages without a Builder. For
  example,
  Foo foo = Foo.PARSER.ParseFrom(input);
  Using Parser is ~25% faster than using Builder to parse messages.
• Added getters/setters to access the underlying ByteString of a string field
  directly.