A method for unifying stream and URL parameter passing in a data processing system

摘要

In a data processing system (SYS) location references (urli, urlo) are used in a processing request message (PREQ) in order to identify the location (URLI) storing data to be processed by a processing unit (PROC) on the server unit (SERV2) side and to identify the location (URLO) where the data after having been processed by said server unit (SERV2) is stored. The request message (PREQ) contains in a first portion a location reference (urliA) indicating as the location (ATTACH) of a data set an attachment (ATTACH) stream to the actual request message (PREQ). Since standard URL resolvers in the Internet cannot resolve such location references (urliA), a mechanism is used by which the original location reference (urliA) is replaced by a new location reference (urln) and by which the data sets in the attachment (ATTACH) are stored at this new location (URLN). A new location reference (urli) is then forwarded to the actual processing unit (PROC) which processes the data which is stored at the new location (URLN). An output location reference (urlo) can be determined and the data can be stored at the location (URLO) indicated by said output location reference (urlo) after having been processed by the processing unit (PROC). With the re-writing of the location reference it is always possible to provide to the responsible processing unit (PROC) a location reference (urln) from which the actual location of the data to be processed can be identified and which can be resolved by a URL resolver (URLRES).