[ABDERA-277] Excessive calls to flush() on the Writer responsible for writing JSONStream data.-

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.4.0, 1.0, 1.1, 1.1.1
• Fix Version/s: 1.1.2
• Environment: Seen on Jetty7 and in local unit-tests.
• Assignee: Unassigned
• Reporter: Olve Sæther Hansen
• Created: 06/Jan/11 12:35
• Updated: 03/Feb/11 18:09
• Resolved: 09/Jan/11 11:59

Description

When I am creating a feed with a lot of entries, say 2-3000, the JSON serialization is horribly slow. XML serialisation is very fast in comparison.
I am using Abdera together with Jersey, via Jersey integration.

Using curl and Jersey content-negotiation the xml-file downloaded instantely. The json-file took as much as a minute and a half, and as little as 22 seconds.
Some investigation lead me to the excessive calls to flush in the JSONStream-class.
https://github.com/apache/abdera/blob/abdera-1.1.1/extensions/json/src/main/java/org/apache/abdera/ext/json/JSONStream.java

My proposal for a fix is in the attatched patch.

I hope someone can put this in as soon as possible. I will have to make a local "fork" for this fix until it is released through proper channels.