In order to support the ice:dataExporter component working correctly when used in an .war archive deployment in WebLogic servers (where there is no writable disk to generate the output file to) we need to enhance the Resource and Resource Registry APIs to facilitate the optional specification of a config. parameter to identify a file-system location for the files to be written to (possibly outside of the application context). In addition, another parameter is required to identify if the specified file location URL is an absolute path or not.

This is very similar to two existing config. parameters that exist for the ice:inputFile component:

"uploadDirectory" - Specific to the ice:inputFile component. Specifies the directory that uploaded files should be stored in. Works in conjunction with the uploadDirectoryAbsolute and uniqueFolder parameters. It can be set in the application's web.xml file, and can be overridden by the InputFile component's uploadDirectory property.
 
"uploadDirectoryAbsolute" - Specific to the ice:inputFile component. Specifies whether the uploadDirectory parameter should be treated as a relative or absolute path. It can be set in the application's web.xml file, and can be overridden by the InputFile component's uploadDirectory property.