[ARROW-2704] [Java] IPC stream handling should be more friendly to low level processing

• Type: Improvement
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.10.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/19095
• Assignee: Bryan Cutler
• Reporter: Bryan Cutler
• Created: 12/Jun/18 22:08
• Updated: 11/Jan/23 07:22
• Resolved: 29/Jul/18 18:15

Description

With some minor adjustments, the Java IPC stream reader could be more friendly to allow for low level message processing. By that I mean reading a stream and examining messages without necessarily having to load the Record Batch data. These include

• Separate MessageChannelReader.readNextMessage to allow access to the buffer containing the message.
• MessageChannelReader input channel should be protected
• ArrowStreamWriter should make the message to end a stream static
• WriteChannel intToBytes could write to existing bytes or byte buffer instead of creating new array

Issue Links

• links to: GitHub Pull Request #2139
• links to: GitHub Pull Request #2340