Jasper Reports datasource for JSON data

Question

Anyone know of an open source Jasper Reports DataSource implementation that can handle JSON data? I'd like to utilize JSON data from a RESTful API in some custom reports. Before I build it myself, I figured I'd check if something already exists.

Answer 1

There is a JSON Datasource in Jasper 5.0.1. I think it is new with V5.

http://jasperreports.sourceforge.net/api/net/sf/jasperreports/engine/data/JsonDataSource.html

The API doesn't tell you much. Haven't found documentation for it yet. The JasperReports Ultimate Guide I just downloaded (dated 1/15/2013) doesn't seem to have been updated with it.

I suspect it works somewhat like the XML Datasource: you use paths (XPATH in the case of XML) to specify the fields.